Anti-Engine Puzzle

Discussion of anything and everything relating to chess playing software and machines.

Moderators: hgm, Rebel, chrisw

peter
Posts: 3185
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Anti-Engine Puzzle

Post by peter »

Jouni wrote: ↑Mon Mar 08, 2021 5:41 pm 128 core SF is waste of power. 6 core Crystal :) :
Only four for SF11 with 4G hash only, and not only 24 moves backward but already to position 8 moves after root
:)

8/8/2k5/3N4/8/4N1p1/4Kprp/B5bn w - - 0 1

1. Kf1 Kc5 2. Nf6 Kd6 3. Nfd5 Kc5 4. Nf4 Kb4 5. Bb2 Kb5 6. Ba3 Kc6 7. Ne6
Kd7 8. Nd4 Ke8

4k3/8/8/8/3N4/B3N1p1/5prp/5Kbn w - - 0 1

Analysis by Stockfish 170620 64 POPCNT:

9.Ld6 Kd8 10.Sc4 Kd7 11.Lf4 Ke7 12.Sb6 Kf6 13.Sa4 Kf7 14.Lc7 Kf6 15.Ld6 Kf7 16.Sc5 Kg6 17.Le5 Kf7 18.Lb8 Ke7 19.Lc7 Kf7 20.Ld8 Kg7 21.Sd3 Kh7 22.Se5 Kh8 23.Lf6+ Kh7 24.Lh4 Kh6 25.Sc4 Kh5 26.Le7 Kg4 27.Ld6 Kg5 28.Le5 Kh6 29.Sd6 Kh7 30.Lf6 Kg6 31.Lh4 Kg7 32.Ld8 Kh7 33.Se6 Kg6 34.Lh4 Kh5 35.Lf6 Kg4 36.Le5 Kh3 37.Lf4 Kg4 38.Le3 Kf3 39.Ld2 Kg4 40.Sf8 Kh4 41.Lf4 Kg4 42.Sg6 Kf3 43.Ld2 Kg4 44.Lc1 Kh5 45.Se5 Kh4 46.Se4 Kh3 47.Sf6 Kh4 48.Ld2 Kh3 49.Sed7 Kh4
White is clearly winning: +- (154.14) Depth: 81/94 00:00:13 124MN

Mate search of SF11, especially in Backward still rules over all newer devs and branches (Cfish 11 is about equal).
Only Zappa Mexico (as for game playing engines on the contrary to e.g. Chest and Gustav) is still a hard competitor regards
:)
Peter.
Top
User avatar
Ajedrecista
Posts: 1966
Joined: Wed Jul 13, 2011 9:04 pm
Location: Madrid, Spain.

Re: Anti-engine puzzle.

Post by Ajedrecista »

Hello Peter:
peter wrote: ↑Mon Mar 08, 2021 6:19 pm
Ignacio wrote: ↑Mon Mar 08, 2021 4:11 pm FEN: 8/8/2k5/3N4/8/4N1p1/4Kprp/B5bn w - - 0 1

Chest 5.2:
FEN: 8/8/2k5/3N4/8/4N1p1/4Kprp/B5bn w - - (4+7)
Position-Analysis: C0/R0/K6/P2/X9 W:4/26
Search for 1. Special-Mate [C14/R0/K0/P1/X0] in 126 ... (Hash=2044MB)
46 06:27 553.529.985 1.433.413 +M46 Re2-f1
Search completed ... (Time=387.13s)
Mate in 46 found ! (1. Solution in 06:27)
46/46 06:27 554.718.783 1.432.907 +M46 Re2-f1 Rc6-c5 Cd5-c7 Rc5-c6 Aa1-e5 Rc6-b6 Ce3-d5+ Rb6-c6 Cd5-f6 Rc6-b6 Cc7-e6 Rb6-b7 Ae5-f4 Rb7-a7 Ce6-d8 Ra7-a8 Cf6-d7 Ra8-a7 Af4-b8+ Ra7-a8 Ab8-c7 Ra8-a7 Cd7-b6 Ra7-a6 Cb6-c8 Ra6-b5 Ac7-b6 Rb5-c4 Cc8-e7 Rc4-b5 Ab6-a7 Rb5-a5 Ce7-c8 Ra5-b5 Cc8-d6+ Rb5-a5 Cd8-e6 Ra5-a6 Aa7-c5 Ra6-a5 Ce6-c7 Ra5-a4 Cc7-a6 Ra4-a5 Ca6-b8 Ra5-a4 Cb8-c6 Ra4-b3 Ac5-b4 Rb3-c2 Cc6-d4+ Rc2-d3 Cd4-e6 Rd3-e3 Ab4-c3 Re3-d3 Ac3-d4 Rd3-d2 Ce6-c5 Rd2-c2 Cd6-c4 Rc2-c1 Cc4-e3 Rc1-d2 Ce3-d5 Rd2-c2 Cd5-b4+ Rc2-d2 Cc5-b3+ Rd2-d1 Cb3-a5 Rd1-c1 Ca5-c4 Rc1-d1 Ad4-e5 Rd1-c1 Ae5-c3 Rc1-d1 Cc4-a3 Rd1-c1 Cb4-d3+ Rc1-d1 Cd3-b2+ Rd1-c1 Cb2-c4 Rc1-d1 Ac3-d4 Rd1-c1 Ad4-e3+ Rc1-d1 Cc4-b2+
Very well, Ignacio!
Knowing the DTM of 46 and your params makes it much easier of course, but I would never have come to C14 on my own, how did you?
And yet at my hardware Chest isn't even near to your time to solution. Did you do some retro analysis too maybe?
I have been able to replicate Ignacio's result of checkmate in 46 moves with his alien settings in few more than 10 minutes. Then, I forced 1.- Kf1 and all the possible moves by black (1.- ..., Kb5; 1.- ..., Kb7; 1.- ..., Kc5; 1.- ..., Kd6; and 1.- ..., Kd7) repeating Ignacio's settings.

------------

1.- Kf1, Kb5.

Code: Select all

FEN: 8/8/8/1k1N4/8/4N1p1/5prp/B4Kbn w - - 0 1

ChestUCI:
FEN: 8/8/8/1k1N4/8/4N1p1/5prp/B4Kbn w - -   (4+7)
Stellungs-Analyse:  C0/R0/K6/P1/X5   W:4/22
Suche nach Spezial-Matt [C14/R0/K0/P1/X0] in 126 ...  (Hash=1280MB)
  44	04:26	 191.340.857	720.483	+M44	Ba1d4
Suche abgeschlossen ...  (Zeit=266.06s)
Berechnung abgebrochen !
Matt in 44 gefunden !  (1 Lösung in 04:26)
 44/44	04:50	 191.688.776	720.474	+M44	Ba1d4 Kb5c6 Nd5b4+ Kc6d6 Ne3c4+ Kd6c7 Nc4a5 Kc7d6 Nb4a6 Kd6e6 Bd4c5 Ke6d5 Bc5a3 Kd5e6 Na6b8 Ke6f6 Na5b7 Kf6e6 Nb7c5+ Ke6d6 Nc5a6+ Kd6d5 Na6c7+ Kd5d4 Nb8d7 Kd4d3 Ba3c5 Kd3e4 Bc5a7 Ke4f5 Ba7d4 Kf5g6 Nc7d5 Kg6f5 Nd7c5 Kf5g6 Nd5e7+ Kg6f7 Ne7c8 Kf7f8 Bd4f6 Kf8f7 Bf6h4 Kf7g7 Nc8d6 Kg7h7 Nc5d7 Kh7h6 Nd7e5 Kh6g7 Nd6f5+ Kg7f8 Bh4e7+ Kf8e8 Be7f6 Ke8f8 Nf5g7 Kf8g8 Ng7e6 Kg8h7 Bf6g7 Kh7g8 Bg7f8 Kg8h7 Ne6g5+ Kh7h8 Ne5c6 Kh8g8 Bf8h6 Kg8h8 Nc6d8 Kh8g8 Nd8e6 Kg8h8 Bh6g7+ Kh8g8 Bg7f8 Kg8h8 Ne6c7 Kh8g8 Bf8h6 Kg8h8 Nc7d5 Kh8g8 Nd5f6+ Kg8h8 Ng5f7+
Checkmate in 45 moves from the original position if 1.- Kf1, Kb5 is played.

------------

1.- Kf1, Kb7.

Code: Select all

FEN: 8/1k6/8/3N4/8/4N1p1/5prp/B4Kbn w - - 0 1

ChestUCI:
FEN: 8/1k6/8/3N4/8/4N1p1/5prp/B4Kbn w - -   (4+7)
Stellungs-Analyse:  C0/R0/K7/P1/X6   W:4/22
Suche nach Spezial-Matt [C14/R0/K0/P1/X0] in 126 ...  (Hash=1280MB)
  44	04:28	 190.615.039	714.098	+M44	Nd5b4
  44	04:29	 191.885.689	714.134	+M44	Ba1d4
Suche abgeschlossen ...  (Zeit=269.06s)
Berechnung abgebrochen !
Matt in 44 gefunden !  (2 Lösungen in 04:29)
 44/44	06:29	 192.155.222	714.169	+M44	Ba1d4 Kb7b8 Ne3c4 Kb8b7 Nd5b4 Kb7c7 Nc4a5 Kc7d6 Nb4a6 Kd6e6 Bd4c5 Ke6d5 Bc5a3 Kd5e6 Na6b8 Ke6f6 Na5b7 Kf6e6 Nb7c5+ Ke6d6 Nc5a6+ Kd6d5 Na6c7+ Kd5d4 Nb8d7 Kd4d3 Ba3c5 Kd3e4 Bc5a7 Ke4f5 Ba7d4 Kf5g6 Nc7d5 Kg6f5 Nd7c5 Kf5g6 Nd5e7+ Kg6f7 Ne7c8 Kf7f8 Bd4f6 Kf8f7 Bf6h4 Kf7g7 Nc8d6 Kg7h7 Nc5d7 Kh7h6 Nd7e5 Kh6g7 Nd6f5+ Kg7f8 Bh4e7+ Kf8e8 Be7f6 Ke8f8 Nf5g7 Kf8g8 Ng7e6 Kg8h7 Bf6g7 Kh7g8 Bg7f8 Kg8h7 Ne6g5+ Kh7h8 Ne5c6 Kh8g8 Bf8h6 Kg8h8 Nc6d8 Kh8g8 Nd8e6 Kg8h8 Bh6g7+ Kh8g8 Bg7f8 Kg8h8 Ne6c7 Kh8g8 Bf8h6 Kg8h8 Nc7d5 Kh8g8 Nd5f6+ Kg8h8 Ng5f7+
 44/44	06:29	 192.155.222	714.169	+M44	Nd5b4 Kb7c7 Ne3c4 Kc7b7 Ba1d4 Kb7c7 Nc4a5 Kc7d6 Nb4a6 Kd6e6 Bd4c5 Ke6d5 Bc5a3 Kd5e6 Na6b8 Ke6f6 Na5b7 Kf6e6 Nb7c5+ Ke6d6 Nc5a6+ Kd6d5 Na6c7+ Kd5d4 Nb8d7 Kd4d3 Ba3c5 Kd3e4 Bc5a7 Ke4f5 Ba7d4 Kf5g6 Nc7d5 Kg6f5 Nd7c5 Kf5g6 Nd5e7+ Kg6f7 Ne7c8 Kf7f8 Bd4f6 Kf8f7 Bf6h4 Kf7g7 Nc8d6 Kg7h7 Nc5d7 Kh7h6 Nd7e5 Kh6g7 Nd6f5+ Kg7f8 Bh4e7+ Kf8e8 Be7f6 Ke8f8 Nf5g7 Kf8g8 Ng7e6 Kg8h7 Bf6g7 Kh7g8 Bg7f8 Kg8h7 Ne6g5+ Kh7h8 Ne5c6 Kh8g8 Bf8h6 Kg8h8 Nc6d8 Kh8g8 Nd8e6 Kg8h8 Bh6g7+ Kh8g8 Bg7f8 Kg8h8 Ne6c7 Kh8g8 Bf8h6 Kg8h8 Nc7d5 Kh8g8 Nd5f6+ Kg8h8 Ng5f7+
Checkmate in 45 moves from the original position if 1.- Kf1, Kb7 is played.

------------

1.- Kf1, Kc5.

Code: Select all

FEN: 8/8/8/2kN4/8/4N1p1/5prp/B4Kbn w - - 0 1

ChestUCI:
FEN: 8/8/8/2kN4/8/4N1p1/5prp/B4Kbn w - -   (4+7)
Stellungs-Analyse:  C0/R0/K4/P1/X3   W:4/22
Suche nach Spezial-Matt [C14/R0/K0/P1/X0] in 126 ...  (Hash=1280MB)
  45	04:33	 191.651.112	706.050	+M45	Nd5c7
  45	04:36	 194.293.420	705.769	+M45	Nd5f4
  45	04:37	 195.091.255	705.637	+M45	Ba1e5
Suche abgeschlossen ...  (Zeit=277.18s)
Berechnung abgebrochen !
Matt in 45 gefunden !  (3 Lösungen in 04:37)
 45/45	04:46	 195.534.076	705.450	+M45	Ba1e5 Kc5b5 Nd5c7+ Kb5c5 Ne3d5 Kc5c6 Nd5f6 Kc6b6 Nc7e6 Kb6b7 Be5f4 Kb7a7 Ne6d8 Ka7a8 Nf6d7 Ka8a7 Bf4b8+ Ka7a8 Bb8c7 Ka8a7 Nd7b6 Ka7a6 Nb6c8 Ka6b5 Bc7b6 Kb5c4 Nc8e7 Kc4b5 Bb6a7 Kb5a5 Ne7c8 Ka5b5 Nc8d6+ Kb5a5 Nd8e6 Ka5a6 Ba7c5 Ka6a5 Ne6c7 Ka5a4 Nc7a6 Ka4a5 Na6b8 Ka5a4 Nb8c6 Ka4b3 Bc5b4 Kb3c2 Nc6d4+ Kc2d3 Nd4e6 Kd3e3 Bb4c3 Ke3d3 Bc3d4 Kd3d2 Ne6c5 Kd2c2 Nd6c4 Kc2c1 Nc4e3 Kc1d2 Ne3d5 Kd2c2 Nd5b4+ Kc2d2 Nc5b3+ Kd2d1 Nb3a5 Kd1c1 Na5c4 Kc1d1 Bd4e5 Kd1c1 Be5c3 Kc1d1 Nc4a3 Kd1c1 Nb4d3+ Kc1d1 Nd3b2+ Kd1c1 Nb2c4 Kc1d1 Bc3d4 Kd1c1 Bd4e3+ Kc1d1 Nc4b2+
 45/45	04:46	 195.534.076	705.450	+M45	Nd5f4 Kc5b5 Ne3d5 Kb5c5 Ba1e5 Kc5b5 Nd5e7 Kb5c5 Nf4e6+ Kc5b6 Ne6d8 Kb6c5 Ne7c8 Kc5c4 Be5d6 Kc4d5 Bd6e7 Kd5c4 Nc8b6+ Kc4b5 Nb6a8 Kb5c4 Na8c7 Kc4d4 Nd8c6+ Kd4c4 Be7f8 Kc4c3 Bf8c5 Kc3c4 Bc5a7 Kc4c3 Nc6e5 Kc3b3 Nc7b5 Kb3b4 Nb5d6 Kb4b3 Ne5c6 Kb3c3 Ba7d4+ Kc3b3 Bd4e5 Kb3a3 Be5c3 Ka3b3 Bc3b4 Kb3c2 Nc6d4+ Kc2d3 Nd4e6 Kd3e3 Bb4c3 Ke3d3 Bc3d4 Kd3d2 Ne6c5 Kd2c2 Nd6c4 Kc2c1 Nc4e3 Kc1d2 Ne3d5 Kd2c2 Nd5b4+ Kc2d2 Nc5b3+ Kd2d1 Nb3a5 Kd1c1 Na5c4 Kc1d1 Bd4e5 Kd1c1 Be5c3 Kc1d1 Nc4a3 Kd1c1 Nb4d3+ Kc1d1 Nd3b2+ Kd1c1 Nb2c4 Kc1d1 Bc3d4 Kd1c1 Bd4e3+ Kc1d1 Nc4b2+
 45/45	04:46	 195.534.076	705.450	+M45	Nd5c7 Kc5c6 Ba1e5 Kc6b6 Ne3d5+ Kb6c6 Nd5f6 Kc6b6 Nc7e6 Kb6b7 Be5f4 Kb7a7 Ne6d8 Ka7a8 Nf6d7 Ka8a7 Bf4b8+ Ka7a8 Bb8c7 Ka8a7 Nd7b6 Ka7a6 Nb6c8 Ka6b5 Bc7b6 Kb5c4 Nc8e7 Kc4b5 Bb6a7 Kb5a5 Ne7c8 Ka5b5 Nc8d6+ Kb5a5 Nd8e6 Ka5a6 Ba7c5 Ka6a5 Ne6c7 Ka5a4 Nc7a6 Ka4a5 Na6b8 Ka5a4 Nb8c6 Ka4b3 Bc5b4 Kb3c2 Nc6d4+ Kc2d3 Nd4e6 Kd3e3 Bb4c3 Ke3d3 Bc3d4 Kd3d2 Ne6c5 Kd2c2 Nd6c4 Kc2c1 Nc4e3 Kc1d2 Ne3d5 Kd2c2 Nd5b4+ Kc2d2 Nc5b3+ Kd2d1 Nb3a5 Kd1c1 Na5c4 Kc1d1 Bd4e5 Kd1c1 Be5c3 Kc1d1 Nc4a3 Kd1c1 Nb4d3+ Kc1d1 Nd3b2+ Kd1c1 Nb2c4 Kc1d1 Bc3d4 Kd1c1 Bd4e3+ Kc1d1 Nc4b2+
Checkmate in 46 moves from the original position if 1.- Kf1, Kc5 is played.

------------

1.- Kf1, Kd6.

Code: Select all

FEN: 8/8/3k4/3N4/8/4N1p1/5prp/B4Kbn w - - 0 1

ChestUCI:
FEN: 8/8/3k4/3N4/8/4N1p1/5prp/B4Kbn w - -   (4+7)
Stellungs-Analyse:  C0/R0/K5/P1/X4   W:4/22
Suche nach Spezial-Matt [C14/R0/K0/P1/X0] in 126 ...  (Hash=1280MB)
  44	04:31	 191.139.151	706.449	+M44	Ba1d4
Suche abgeschlossen ...  (Zeit=270.98s)
Berechnung abgebrochen !
Matt in 44 gefunden !  (1 Lösung in 04:30)
 44/44	06:35	 191.450.940	706.510	+M44	Ba1d4 Kd6e6 Nd5b4 Ke6d6 Ne3c4+ Kd6c7 Nc4a5 Kc7d6 Nb4a6 Kd6e6 Bd4c5 Ke6d5 Bc5a3 Kd5e6 Na6b8 Ke6f6 Na5b7 Kf6e6 Nb7c5+ Ke6d6 Nc5a6+ Kd6d5 Na6c7+ Kd5d4 Nb8d7 Kd4d3 Ba3c5 Kd3e4 Bc5a7 Ke4f5 Ba7d4 Kf5g6 Nc7d5 Kg6f5 Nd7c5 Kf5g6 Nd5e7+ Kg6f7 Ne7c8 Kf7f8 Bd4f6 Kf8f7 Bf6h4 Kf7g7 Nc8d6 Kg7h7 Nc5d7 Kh7h6 Nd7e5 Kh6g7 Nd6f5+ Kg7f8 Bh4e7+ Kf8e8 Be7f6 Ke8f8 Nf5g7 Kf8g8 Ng7e6 Kg8h7 Bf6g7 Kh7g8 Bg7f8 Kg8h7 Ne6g5+ Kh7h8 Ne5c6 Kh8g8 Bf8h6 Kg8h8 Nc6d8 Kh8g8 Nd8e6 Kg8h8 Bh6g7+ Kh8g8 Bg7f8 Kg8h8 Ne6c7 Kh8g8 Bf8h6 Kg8h8 Nc7d5 Kh8g8 Nd5f6+ Kg8h8 Ng5f7+
Checkmate in 45 moves from the original position if 1.- Kf1, Kd6 is played.

------------

1.- Kf1, Kd7.

Code: Select all

FEN: 8/3k4/8/3N4/8/4N1p1/5prp/B4Kbn w - - 0 1

ChestUCI:
FEN: 8/3k4/8/3N4/8/4N1p1/5prp/B4Kbn w - -   (4+7)
Stellungs-Analyse:  C0/R0/K7/P1/X6   W:4/22
Suche nach Spezial-Matt [C14/R0/K0/P1/X0] in 126 ...  (Hash=1280MB)
  44	04:46	 191.639.691	672.977	+M44	Nd5b4
  44	04:46	 191.639.691	672.977	+M44	Ba1d4
Suche abgeschlossen ...  (Zeit=285.71s)
Berechnung abgebrochen !
Matt in 44 gefunden !  (2 Lösungen in 04:45)
 44/44	10:47	 192.353.703	673.238	+M44	Ba1d4 Kd7d8 Ne3c4 Kd8d7 Nc4a5 Kd7d6 Nd5b6 Kd6c7 Bd4c5 Kc7b8 Nb6d5 Kb8a8 Nd5c7+ Ka8b8 Bc5b6 Kb8c8 Nc7a6 Kc8d7 Bb6c7 Kd7e6 Na6b4 Ke6d7 Bc7b8 Kd7d8 Nb4a6 Kd8e8 Na6c5 Ke8d8 Na5b3 Kd8e8 Nb3d4 Ke8d8 Nd4f5 Kd8c8 Bb8d6 Kc8d8 Nf5e7 Kd8e8 Ne7c6 Ke8f7 Bd6e7 Kf7g6 Nc6d4 Kg6f7 Be7h4 Kf7g7 Nc5d7 Kg7f7 Nd7e5+ Kf7e8 Nd4b5 Ke8f8 Bh4f6 Kf8g8 Nb5d6 Kg8f8 Ne5g6+ Kf8g8 Bf6c3 Kg8h7 Ng6e7 Kh7h6 Nd6e8 Kh6h7 Bc3d2 Kh7h8 Bd2h6 Kh8h7 Bh6f8 Kh7h8 Ne8d6 Kh8h7 Nd6f5 Kh7h8 Bf8g7+ Kh8h7 Bg7h6 Kh7h8 Nf5d6 Kh8h7 Bh6f8 Kh7h8 Nd6e8 Kh8h7 Ne8f6+ Kh7h8 Ne7g6+
 44/44	10:47	 192.353.703	673.238	+M44	Nd5b4 Kd7c7 Ne3c4 Kc7b7 Ba1d4 Kb7c7 Nc4a5 Kc7d6 Nb4a6 Kd6e6 Bd4c5 Ke6d5 Bc5a3 Kd5e6 Na6b8 Ke6f6 Na5b7 Kf6e6 Nb7c5+ Ke6d6 Nc5a6+ Kd6d5 Na6c7+ Kd5d4 Nb8d7 Kd4d3 Ba3c5 Kd3e4 Bc5a7 Ke4f5 Ba7d4 Kf5g6 Nc7d5 Kg6f5 Nd7c5 Kf5g6 Nd5e7+ Kg6f7 Ne7c8 Kf7f8 Bd4f6 Kf8f7 Bf6h4 Kf7g7 Nc8d6 Kg7h7 Nc5d7 Kh7h6 Nd7e5 Kh6g7 Nd6f5+ Kg7f8 Bh4e7+ Kf8e8 Be7f6 Ke8f8 Nf5g7 Kf8g8 Ng7e6 Kg8h7 Bf6g7 Kh7g8 Bg7f8 Kg8h7 Ne6g5+ Kh7h8 Ne5c6 Kh8g8 Bf8h6 Kg8h8 Nc6d8 Kh8g8 Nd8e6 Kg8h8 Bh6g7+ Kh8g8 Bg7f8 Kg8h8 Ne6c7 Kh8g8 Bf8h6 Kg8h8 Nc7d5 Kh8g8 Nd5f6+ Kg8h8 Ng5f7+
Checkmate in 45 moves from the original position if 1.- Kf1, Kd7 is played.

------------

Regards from Spain.

Ajedrecista.
Top
peter
Posts: 3185
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Anti-engine puzzle.

Post by peter »

Ajedrecista wrote: ↑Mon Mar 08, 2021 8:29 pm I have been able to replicate Ignacio's result of checkmate in 46 moves with his alien settings in few more than 10 minutes.
Thanks for trying too, I didn't doubt Ignacio's params, just wanted to know how he found them.
Anyhow, Chest is a fine program, but I yet still don't understand all of its features regards
Peter.
Top
MikeGL
Posts: 1010
Joined: Thu Sep 01, 2011 2:49 pm

Re: Anti-engine puzzle.

Post by MikeGL »

Pretty impressive.
ok so your mate shows the following line:
[pgn]
[Event "Computer chess game"]
[Site "Talkchess"]
[Date "2021.03.09"]
[Round "?"]
[White "SF"]
[Black "SF"]
[Result "*"]
[BlackElo "2400"]
[TimeControl "7200+10"]
[SetUp "1"]
[FEN "8/8/2k5/3N4/8/4N1p1/4Kprp/B5bn w - - 0 1"]
[Termination "unterminated"]
[PlyCount "89"]

1. Kf1 Kb5 2. Bd4 Kc6 3. Nb4+ Kd6 4. Nc4+ Kc7 5. Na5 Kd6 6. Na6 Ke6 7. Bc5
Kd5 8. Ba3 Ke6 9. Nb8 Kf6 10. Nb7 Ke6 11. Nc5+ Kd6 12. Nca6+ Kd5 13. Nc7+
Kd4 14. Nd7 Kd3 15. Bc5 Ke4 16. Ba7 Kf5 17. Bd4 Kg6 18. Nd5 Kf5 19. Nc5 Kg6
20. Ne7+ Kf7 21. Nc8 Kf8 22. Bf6 Kf7 23. Bh4 Kg7 24. Nd6 Kh7 25. Nd7 Kh6
26. Ne5 Kg7 27. Nf5+ Kf8 28. Be7+ Ke8 29. Bf6 Kf8 30. Ng7 Kg8 31. Ne6 Kh7
32. Bg7 Kg8 33. Bf8 Kh7 34. Ng5+ Kh8 35. Nc6 Kg8 36. Bh6 Kh8 37. Nd8 Kg8
38. Nde6 Kh8 39. Bg7+ Kg8 40. Bf8 Kh8 41. Nc7 Kg8 42. Bh6 Kh8 43. Nd5 Kg8
44. Nf6+ Kh8 45. Nf7#
[/pgn]

A bit longer than K vs KNB endgame which ends in aroound 30 moves.
but the above line seems to prove the old theory that the attacking value of K in an open board is around 4.00 pawns,
just a bit higher than a bishop and a bit lower than a rook, judging from the DTM of both endgames.

[d]8/8/8/1k1N4/8/4N3/8/B7 w - - 0 2
bm Bd4 (+M44)
Ok that is an illegal position, but would be a good excercise for the brain without an engine. A single N replaced the K for a comparable KNB endgame.
Last edited by MikeGL on Mon Mar 08, 2021 10:18 pm, edited 4 times in total.
I told my wife that a husband is like a fine wine; he gets better with age. The next day, she locked me in the cellar.
Top
Vinvin
Posts: 5228
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Re: Anti-Engine Puzzle

Post by Vinvin »

peter wrote: ↑Mon Mar 08, 2021 6:28 pm
Vinvin wrote: ↑Mon Mar 08, 2021 4:10 pm It's a job for Sting-SF.
If you believe in the eval only.
Not much of a mate in sight, not even in the longest output- line, is there?
Score above +3 after 23 minutes.
One hour search (6*4GHz) :

Code: Select all

Sting-sf-27:
...
 20	00:00	 561 679	1 172 607	+2,82	1.Kf1 Kd6 2.Nf4 Kd7 3.Bf6 Kc6 4.Nfxg2 Kd7 5.Be5 Kc6 6.Bd4 Kd6 7.Bg7 Kc5 8.Bf6 Kd6 9.Bd4 Kd7 10.Bc5 Ke6
 21-	00:00	 1 219 961	2 147 818	+2,70	1.Kf1 Kd6
 21-	00:00	 1 752 323	2 750 899	+2,58	1.Kf1 Kd6 2.Nf4 Kd7 3.Nexg2 Kd6 4.Bd4 Kc6 5.Bg7 Kc5 6.Be5 Kc6 7.Bc3 Kc5 8.Bg7 Kb4 9.Bd4 Kb3 10.Bf6 Kc2 11.Ne3+
 21	00:00	 2 005 340	2 993 044	+2,58	1.Kf1 Kd6 2.Nf4 Kd7 3.Nfxg2 Kd6 4.Bd4 Kc6 5.Be5 Kd7 6.Bb2 Kd6 7.Bg7 Kc5 8.Bf6 Kd6 9.Bb2 Kc5 10.Be5
 22	00:00	 2 367 887	3 297 892	+2,58	1.Kf1 Kd6 2.Nf4 Kd7 3.Nfxg2 Kd6 4.Bd4 Kc6 5.Be5
 23	00:00	 2 737 813	3 550 989	+2,58	1.Kf1 Kd6 2.Nf4
 24+	00:00	 3 681 812	4 150 859	+2,66	1.Kf1
 24+	00:01	 5 796 137	5 202 995	+2,74	1.Kf1
 24	00:01	 6 884 216	5 560 756	+2,66	1.Kf1 Kd6 2.Nf4 Kc5 3.Nd3+ Kd6 4.Be5+ Ke6 5.Bf4 Ke7 6.Bb8 Kf6 7.Ne5 Ke6 8.Nf3 Kf6 9.Be5+ Kg6 10.Nd4 Kf7 11.Ne2 Ke6 12.Bf4 Kf6 13.Nd4 Kg6 14.Nxg2 Kh5 15.Bb8
 25-	00:01	 9 085 131	6 072 948	+2,58	1.Kf1 Kd6
 25	00:01	 10 174 728	6 307 952	+2,58	1.Kf1 Kd6 2.Nf4 Kc5 3.Nfxg2 Kb5 4.Bg7 Kc5 5.Be5 Kc6
 26	00:01	 11 445 977	6 510 794	+2,58	1.Kf1 Kd6 2.Nf4 Kc5 3.Nfxg2 Kb5 4.Bg7 Kc5 5.Be5
 27+	00:02	 14 086 606	6 874 868	+2,66	1.Kf1
 27+	00:02	 14 438 075	6 888 394	+2,74	1.Kf1
 27	00:02	 18 349 534	7 264 265	+2,58	1.Kf1 Kd6 2.Bd4 Ke6 3.Nf4+ Kd7 4.Nfxg2 Ke6 5.Nf4+ Kd6 6.Nfg2
 28	00:02	 20 695 194	7 428 282	+2,58	1.Kf1 Kd6 2.Bd4 Ke6 3.Nf4+ Kd7 4.Nfxg2 Ke6 5.Nf4+ Kd6 6.Nf5+ Kc6 7.Be3 Kb5 8.Ba7 Kc4 9.Bb6 Kc3 10.Bc5 Kc4 11.Bd6 Kc3 12.Be7 Kb3 13.Bc5
 29	00:03	 25 285 299	7 692 515	+2,58	1.Kf1 Kd6 2.Bd4 Ke6 3.Nf4+ Kd7 4.Nfxg2 Ke6 5.Nf4+ Kd6 6.Nf5+ Kc6 7.Be3 Kb5 8.Ba7 Kc4 9.Bb6 Kc3 10.Bc5 Kc4 11.Bd6 Kc3 12.Be7 Kb3 13.Bc5
 30	00:03	 31 370 226	7 909 789	+2,58	1.Kf1 Kd6 2.Bd4 Ke6 3.Nf4+ Kd7 4.Nfxg2 Ke6 5.Nf4+ Kd6 6.Nf5+ Kc6 7.Be3 Kb5 8.Ba7 Kc4 9.Bb6 Kc3 10.Bc5 Kc4 11.Bd6 Kc3 12.Be7 Kb3 13.Bc5
 31	00:05	 44 775 065	8 362 918	+2,58	1.Kf1 Kd6 2.Bd4 Ke6 3.Nf4+ Kd7 4.Nfxg2 Ke6 5.Nf4+ Kd6 6.Nf5+ Kc6 7.Be3 Kb5 8.Ba7 Kc4 9.Bb6
 32-	00:08	 71 249 722	8 835 531	+2,50	1.Kf1 Kd6
 32-	00:10	 95 873 620	9 061 778	+2,42	1.Kf1 Kd6
 32-	00:13	 128 196 321	9 297 673	+2,30	1.Kf1 Kd6 2.Kxg2 f1Q+ 3.Nxf1 Kxd5 4.Kxh1 Bf2 5.Nxg3 Bxg3 6.Bc3 Kc6 7.Be5 Bxe5 8.Kg2 Kb6 9.Kh1 Kc5 10.Kg2 Kd6 11.Kh1 Ke6 12.Kg2 Kf6 13.Kh1 Kf5 14.Kg2 Kf6
 32-	00:18	 171 560 276	9 481 611	+2,12	1.Kf1 Kd6 2.Kxg2 f1Q+ 3.Nxf1 Kxd5 4.Kxh1 Bf2 5.Nxg3 Bxg3 6.Bc3 Kc6 7.Be5 Bxe5 8.Kg2 Kb6 9.Kh1 Kc5 10.Kg2 Kd6 11.Kh1 Ke6 12.Kg2 Kf6 13.Kh1 Kf5 14.Kg2 Kf6
 32	00:23	 229 378 919	9 625 636	+2,42	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kc6 4.Nf4 Kb5 5.Bg7 Kc5 6.Ne2 Kd6 7.Nd4 Kc5 8.Ndf5 Kc6 9.Bf8 Kb7 10.Nd4 Kc8 11.Nxg2 Kd7 12.Ba3 Ke8 13.Bd6 Kf7 14.Bf4 Kg6 15.Be3 Kf6 16.Bf4
 33	00:25	 247 200 643	9 552 909	+2,42	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kc6 4.Nf4 Kb5 5.Bg7 Kc5 6.Ne2 Kd6 7.Nd4 Kc5 8.Ndf5 Kc6 9.Bf8 Kb7 10.Nd4 Kc8 11.Nxg2 Kd7 12.Ba3 Ke8 13.Bd6 Kf7 14.Bf4 Kg6 15.Bd6
 34	00:29	 281 458 659	9 532 247	+2,42	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kc6 4.Nf4 Kb5 5.Bg7 Kc5 6.Ne2 Kd6 7.Nd4 Kc5 8.Ndf5 Kc6 9.Bf8 Kb7 10.Nd4 Kc8 11.Nxg2 Kd7 12.Ba3 Kc8 13.Bd6 Kb7 14.Be5 Kb6 15.Nf5 Kc5 16.Nf4 Kb5 17.Nd5 Kc4 18.Nde3+
 35	00:47	 457 797 058	9 566 137	+2,42	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kc6 4.Nf4 Kb5 5.Bg7 Kc5 6.Nfd5 Kc6
 36	00:58	 551 542 887	9 474 402	+2,42	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kc6 4.Nf4 Kb5 5.Bg7 Kc5 6.Nfd5 Kd6 7.Bd4
 37-	01:12	 692 100 893	9 507 272	+2,34	1.Kf1 Kd6
 37-	01:34	 897 837 285	9 490 178	+2,26	1.Kf1 Kd6
 37-	01:49	1 042 795 876	9 487 293	+2,14	1.Kf1 Kd6 2.Nf4 Kd7 3.Nfxg2 Kd6 4.Nf4 g2+ 5.Kxg2 f1Q+ 6.Nxf1 Nf2 7.Ng3 Ng4 8.Ne4+ Kc6 9.Kh1 Ne3 10.Bc3 Ng4 11.Bd2 Be3 12.Bxe3 Nxe3 13.Kxh2 Ng4+ 14.Kh1 Ne3 15.Nd5 Nxd5 16.Kg1 Kb5 17.Kh1 Kc6
 37-	02:31	1 434 898 616	9 450 443	+1,68	1.Kf1 Kd6 2.Nf4 Kd7 3.Nfxg2 Kd6 4.Nf4 g2+ 5.Kxg2 f1Q+ 6.Nxf1 Nf2 7.Ng3 Ng4 8.Ne4+ Kc6 9.Kh1 Ne3 10.Bc3 Ng4 11.Bd2 Be3 12.Bxe3 Nxe3 13.Kxh2 Ng4+ 14.Kh1 Ne3 15.Nd5 Nxd5 16.Kg1 Kb5 17.Kh1 Kc6
 37	03:03	1 758 257 993	9 585 862	+1,73	1.Kf1 Kd6 2.Nf4 Kd7 3.Be5 Kc6 4.Bb2 Kd7 5.Nf5 Kc6 6.Ba1 Kc7 7.Bg7 Kc6 8.Bc3 Kb6 9.Ne3 Kc5 10.Bf6 Kd6 11.Bd4
 38+	03:11	1 835 719 901	9 593 168	+1,85	1.Kf1
 38+	03:14	1 862 786 770	9 593 784	+1,97	1.Kf1 Kd6 2.Nf4 Kd7 3.Be5 Kc8 4.Ng4 Kd7 5.Bb2 Kc6 6.Ba3 Kb6 7.Ne5 Kb5 8.Be7 Ka4 9.Nc4 Kb5 10.Ne3 Kc6 11.Bb4 Kb6 12.Bf8 Kc6 13.Nfxg2 Kd7 14.Bb4 Ke8 15.Bc3 Kf7 16.Ba1 Ke6 17.Bg7 Kd6 18.Bb2
 38+	03:15	1 879 433 309	9 602 761	+2,16	1.Kf1 Kd6 2.Nf4 Kd7 3.Be5 Kc8 4.Ng4 Kd7 5.Bb2 Kc6 6.Ba3 Kb6 7.Ne5 Kb5 8.Be7 Ka4 9.Nc4 Kb5 10.Ne3 Kc6 11.Bb4 Kb6 12.Bf8 Kc6 13.Nfxg2 Kd7 14.Bb4 Ke8 15.Bc3 Kf7 16.Ba1 Ke6 17.Bg7 Kd6 18.Bb2 Kd7 19.Bf6 Kd6 20.Bd4
 38	03:41	2 152 813 217	9 710 917	+2,14	1.Kf1 Kd6 2.Nf4 Kd7 3.Be5 Kc8 4.Ng4 Kd7 5.Bb2 Kc6 6.Ba3 Kb6 7.Ne5 Kb5 8.Be7 Ka4 9.Nc4 Kb5 10.Ne3 Kc6 11.Bb4 Kb5 12.Bf8 Kb6 13.Nexg2 Kc6 14.Bg7 Kc5 15.Bf6 Kb4 16.Be5 Kb3 17.Ne6 Kc2 18.Bh8 Kd3 19.Nc5+ Kc4
 39-	04:52	2 867 284 758	9 787 257	+2,02	1.Kf1 Kd6
 39-	05:59	3 570 617 651	9 928 918	+1,89	1.Kf1 Kd6 2.Kxg2 f1N 3.Nxf1 Kxd5 4.Kxh1 Bf2 5.Nxg3 Bxg3 6.Bc3 Ke4 7.Bb2 Bd6 8.Kg2 Kd3 9.Kh1 Ke4
 39+	07:10	4 315 291 579	10 017 204	+2,26	1.Kf1 Kd6 2.Nf4 Kd7 3.Nf5 Kc6 4.Be5 Kd7 5.Nd4 Kd8 6.Nd5 Kd7 7.Nb6+ Ke7 8.Nc4 Kd7 9.Bd6 Kc8 10.Ne5 Kb7 11.Bc5 Ka6 12.Nf5 Kb5 13.Bd4 Ka4 14.Nd6 Kb3 15.Nd3 Ka4 16.Nf4 Kb4 17.Nd5+ Kb3 18.Ba1 Kc2 19.Nf4 Kb3 20.Be5 Kc2 21.Bd4 Kc1 22.Nc4 Kb1 23.Ne3 Kc1 24.Ne2+
 39	09:39	5 794 923 709	9 998 729	+1,97	1.Kf1 Kd6 2.Nf4 Kd7 3.Nf5 Kc6 4.Be5 Kd7 5.Nd4 Kd8 6.Nd5 Kd7 7.Nb6+ Ke7 8.Nc4 Kd7 9.Bd6 Kc8 10.Ne5 Kb7 11.Bc5 Ka6 12.Nf5 Kb5 13.Bd4 Ka4 14.Nd6 Kb3 15.Nd3 Ka4 16.Nf4 Kb4 17.Nd5+ Kb3 18.Ne3 Ka3 19.Nxg2 Kb4 20.Bb6 Kc3 21.Nf5
 40+	09:44	5 838 582 500	9 995 364	+2,10	1.Kf1
 40+	10:52	6 504 130 036	9 966 869	+2,22	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kd6 4.Bb2 Kd7 5.Bc3 Ke7 6.Bh8 Kf7 7.Nf4 Ke7 8.Bb2 Kd6 9.Bf6 Kc5 10.Be5 Kc6 11.Ne6 Kb5 12.Bd6 Kc6 13.Ba3 Kd7 14.Nf4 Kc6 15.Bf8 Kd7 16.Nf5 Kc6 17.Be7 Kb5 18.Ne3 Ka4 19.Ne2 Kb3 20.Bd6 Kb2 21.Nf4
 40	13:12	7 825 322 937	9 873 676	+2,10	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kd6 4.Bb2 Kd7 5.Bc3 Ke7 6.Bh8 Kf7 7.Nf4 Ke7 8.Bb2 Kd6 9.Bf6 Kc7 10.Be7 Kd7 11.Bc5 Ke8
 41+	14:17	8 433 932 594	9 839 092	+2,22	1.Kf1
 41+	14:20	8 468 806 011	9 836 091	+2,34	1.Kf1 Kd6 2.Nb4 Kc5 3.Bc3 Kd6 4.Nd3 Ke7 5.Bb4+ Kd7 6.Bc5 Ke6 7.Bf8 Kf7 8.Bd6 Ke6 9.Be5 Kd7 10.Nc5+ Kc6 11.Ne6 Kd7 12.Nd4 Ke7 13.Ng4 Kd7 14.Bf4 Ke7 15.Bb8 Kd8 16.Bd6 Kc8 17.Ne5 Kd8 18.Nc2 Kc8 19.Bb4 Kb7 20.Ne3 Kc7 21.Nxg2 Kb6 22.Be7 Kb5 23.Bd6
 41+	14:37	8 621 073 732	9 827 867	+2,52	1.Kf1 Kd6 2.Nb4 Kc5 3.Bc3 Kd6 4.Nd3 Ke7 5.Ne5 Kd6 6.Nf3 Kc5 7.Bd4+ Kd6 8.Bb2 Kc5 9.Ba3+ Kb5 10.Nd4+ Ka4 11.Bf8 Ka5 12.Nd5 Ka6 13.Nb4+ Kb6 14.Nbc6 Kc7 15.Be7 Kd7 16.Bb4 Kc7 17.Ne5 Kb6 18.Nc4+ Kb7 19.Bd6 Ka6 20.Bf4 Kb7 21.Be5
 41+	17:10	10 109 957 884	9 814 911	+2,79	1.Kf1 Kd6 2.Bd4 Kc6 3.Nb4+ Kc7 4.Nc4 Kd7 5.Bc3 Ke6 6.Be5 Kd7 7.Bd6 Ke6 8.Bb8 Kf6 9.Nd2 Kf5 10.Bc7 Kg4 11.Nb3 Kf5 12.Nc5 Kg6 13.Be5 Kf5 14.Bd6 Kf6 15.Nc2 Kg6 16.Nd4 Kf7 17.Nce6 Kg6 18.Nf4+
 41	20:49	12 429 482 953	9 945 933	+2,38	1.Kf1 Kd6 2.Bd4 Kc6 3.Nb4+ Kc7 4.Nc4 Kd7 5.Bc3 Ke6 6.Be5 Kd7 7.Bd6 Ke6 8.Bb8 Kf6 9.Nd2 Kf5 10.Bc7 Kg4 11.Nb3 Kf5 12.Nc5 Kg6 13.Be5 Kf5 14.Nc6 Kg6 15.Bc7 Kf5 16.Nd4+ Kg4 17.Be5 Kg5 18.Nd3 Kg6 19.Bd6 Kf7 20.Ba3
 42+	21:41	12 976 676 565	9 972 661	+2,50	1.Kf1
 42+	22:06	13 244 910 170	9 984 049	+2,62	1.Kf1 Kd6 2.Bd4 Kc6 3.Be5 Kb7 4.Nf6 Kc8 5.Nc2 Kd8 6.Nd4 Kc8 7.Bd6 Kb7 8.Nd5 Ka7 9.Bf4 Ka6 10.Nc7+ Ka5 11.Bd2+ Kb6 12.Nce6 Ka6 13.Nc5+ Kb6 14.Na4+ Kc7 15.Bf4+ Kd8 16.Nc5 Ke7 17.Be5 Kf8 18.Bf6
 42+	22:47	13 670 423 910	9 994 789	+2,80	1.Kf1 Kd6 2.Bd4 Kc6 3.Be5 Kb7 4.Nf6 Kc8 5.Nc2 Kd8 6.Nd4 Kc8 7.Bd6 Kb7 8.Nd7 Ka6 9.Bc7
 42+	23:01	13 811 578 830	10 000 484	+3,08	1.Kf1 Kd6 2.Bd4 Kc6 3.Be5 Kb7 4.Nf6 Kc8 5.Nc2 Kd8 6.Nd4 Kc8 7.Bd6 Kb7 8.Nd7 Ka6 9.Bc7 Kb7 10.Ba5 Ka6 11.Bd8 Ka7 12.Nc5 Kb8 13.Ba5 Ka8 14.Nc2 Kb8 15.Ne3 Kc8 16.Nc4 Kb8 17.Ne5 Kc8 18.Ncd3
 42+	24:45	14 898 737 203	10 030 016	+3,48	1.Kf1 Kd6 2.Bf6 Kc5 3.Nf4 Kb5 4.Nd3 Ka4 5.Be5 Kb3 6.Nc1+ Ka3 7.Bf6 Kb4 8.Bg7 Ka3 9.Nd5 Ka4 10.Bf8 Kb5 11.Ne3 Kc6 12.Ne2 Kd7 13.Nd4 Ke8 14.Bc5 Kd7 15.Nd5 Kd8 16.Bb4 Kd7 17.Nf6+ Kc7 18.Be7 Kc8 19.Bd6 Kd8 20.Nc6+ Kc8 21.Bf4
 42	28:12	17 069 266 473	10 085 947	+3,47	1.Kf1 Kd6 2.Bf6 Kc5 3.Bc3 Kd6 4.Nb4 Kc5 5.Nbc2 Kb5 6.Bd2 Kb6 7.Bb4 Ka7 8.Nd5 Kb7 9.Nd4 Ka6 10.Nf6 Kb6 11.Bd6 Ka5 12.Ne4 Ka4 13.Be7 Ka5 14.Nd2 Kb6 15.Bd6 Ka5 16.Nc4+ Ka4 17.Ne3 Ka5 18.Be7
 43	33:33	20 416 010 073	10 141 225	+3,47	1.Kf1 Kd6 2.Bf6 Kc5 3.Bc3 Kd6 4.Nb4 Ke6 5.Ned5 Kd6 6.Nf4 Kc5 7.Nbd5 Kc4 8.Bf6 Kc5 9.Be5 Kc6 10.Ne3 Kd7 11.Ne2 Ke7 12.Bb2 Kd7 13.Nf4 Kc6 14.Ba3 Kd7 15.Bc5 Kd8 16.Nfd5 Ke8 17.Bd4 Kd7 18.Nc3 Kd6 19.Ne4+
 44+	36:12	22 046 611 241	10 146 393	+3,59	1.Kf1
 44+	36:48	22 409 400 208	10 145 881	+3,71	1.Kf1 Kd6 2.Bf6 Ke6 3.Bg5 Kf7 4.Nf4
 44+	38:06	23 192 394 209	10 145 315	+3,89	1.Kf1 Kd6 2.Bf6 Ke6 3.Bg5 Kf7 4.Nc7 Kg6 5.Be7 Kf7 6.Nf5 Kg8 7.Bh4 Kh7 8.Nd6 Kg8 9.Nd5 Kh7 10.Be7 Kg7 11.Bf6+ Kg6 12.Be5 Kg5 13.Ne7 Kg4 14.Bf6 Kf4 15.Bg7 Kg5 16.Bc3 Kf4 17.Ng6+ Ke3 18.Ne5 Kf4 19.Nd7 Kg5 20.Nb6
 44+	38:21	23 346 478 332	10 143 026	+4,17	1.Kf1 Kd6 2.Bf6 Ke6 3.Bg5 Kf7 4.Nc7 Kg6 5.Be7 Kf7 6.Nf5 Kg8 7.Bh4 Kh7 8.Nd6 Kg8 9.Nd5 Kh7 10.Be7 Kg7 11.Bf6+ Kg6 12.Be5 Kg5 13.Ne7 Kg4 14.Bf6 Kf4 15.Bg7 Kg5 16.Bc3 Kf4 17.Ng6+ Ke3 18.Ne5 Kf4 19.Nec4
 44+	40:44	24 807 453 606	10 148 866	+4,58	1.Kf1 Kd6 2.Bf6 Ke6 3.Bd4 Kd6 4.Nc3 Ke6 5.Ne2 Ke7 6.Ba1 Kd6 7.Nf4 Kc6 8.Bd4 Kb5 9.Ne6 Ka6 10.Bc5 Kb5 11.Be7 Kb6 12.Nd4 Kc7 13.Ba3 Kd7 14.Nc4 Kc7 15.Ne5 Kb6 16.Be7 Kc7 17.Bc5 Kd8 18.Nf5 Kc7 19.Nd6 Kd8 20.Ndc4 Ke8 21.Bd6 Kd8 22.Bb4 Ke8 23.Ne3 Kd8 24.Nf5 Ke8 25.Ba3
 44+	41:26	25 239 223 170	10 150 183	+5,19	1.Kf1 Kd6 2.Bf6 Ke6 3.Bd4 Kd6 4.Nf4 Kc6 5.Nf5 Kb5 6.Ne7 Kb4 7.Nc6+ Kc4 8.Be3 Kb5 9.Ne5 Ka6 10.Ne6 Kb7 11.Bc5 Kc8 12.Be7 Kb7 13.Bd8 Ka6 14.Nd4 Kb7 15.Nb5 Kb8 16.Nd6 Ka7 17.Ba5 Ka6 18.Nec4 Ka7 19.Bb6+ Ka6 20.Bc7 Ka7 21.Ba5 Ka6 22.Bc3
 44	46:42	28 459 507 770	10 155 271	+4,84	1.Kf1 Kd6 2.Bf6 Ke6 3.Bd4 Kd6 4.Nf4 Kc6 5.Nf5 Kb5 6.Ne7 Kb4 7.Nc6+ Kc4 8.Be3 Kb5 9.Ne5 Ka6 10.Ne6 Kb7 11.Bc5 Kc8 12.Bb6 Kb7 13.Bd8 Ka6 14.Nd4 Kb7 15.Nb5 Kc8 16.Ba5 Kb7 17.Nd6+ Ka6 18.Bd8 Ka7 19.Ne4
 45+	47:13	28 771 397 083	10 154 454	+4,96	1.Kf1
 45+	47:13	28 771 779 781	10 154 431	+5,09	1.Kf1 Kd6 2.Bf6 Ke6 3.Bd4 Kd7 4.Nb4 Kc8 5.Bc5 Kd7 6.Ba7 Kd6 7.Nc4+ Kc7 8.Bc5 Kb7 9.Bf8 Kb8 10.Na5 Kc7 11.Bc5 Kb8 12.Bd6+ Ka7 13.Bc7 Ka8 14.Nd3 Ka7 15.Nc5 Ka8 16.Bb6 Kb8 17.Na6+ Ka8 18.Nb4 Kb8 19.Bc5
 45+	50:11	30 617 229 898	10 167 874	+5,27	1.Kf1 Kd6 2.Nb4 Kc5 3.Bc3 Kb5 4.Ned5 Kc5 5.Bd2 Kd6 6.Bh6 Kd7 7.Nb6+ Kc7 8.Nc4 Kb7 9.Bf4 Ka7 10.Be3+ Kb8 11.Nd5 Kb7 12.Nc3 Kc7 13.Na5 Kb8 14.Nd5 Ka8 15.Bc5 Kb8 16.Bd4 Ka8 17.Nc7+ Kb8 18.Bb6 Kc8 19.Na6 Kd7 20.Bc5 Kd8 21.Bd6 Kd7 22.Bf4 Ke6 23.Nb4 Kf5 24.Be3 Kg4 25.Nc4 Kf3 26.Bc5 Ke4 27.Be3
 45+	50:11	30 621 080 820	10 167 590	+5,54	1.Kf1 Kd6 2.Nb4 Kc5 3.Bc3 Kb5 4.Ned5 Kc5 5.Bd2 Kd6 6.Bh6 Kd7 7.Nb6+ Kc7 8.Nc4 Kb7 9.Bf4 Ka7 10.Be3+ Kb8 11.Na5 Kc7 12.Na6+ Kd6 13.Bc5+ Kd7 14.Ba3 Kc8 15.Bd6 Kd7 16.Bf4 Ke6 17.Nb4 Kf5 18.Be3 Ke6 19.Bc5 Kd7 20.Nd5 Ke6 21.Nb6 Kf6 22.Ba3 Ke6 23.Nc6 Kf5 24.Ne7+ Ke5 25.Bc5 Ke6 26.Bb4
 45+	50:11	30 621 419 295	10 167 540	+5,95	1.Kf1 Kd6 2.Nb4 Kc5 3.Bc3 Kb5 4.Ned5 Kc5 5.Bd2 Kd6 6.Bh6 Kd7 7.Nb6+ Kc7 8.Nc4 Kb7 9.Bf4 Ka7 10.Be3+ Kb8 11.Na5 Kc7 12.Na6+ Kd6 13.Bc5+ Kd7 14.Ba3 Kc8 15.Bd6 Kd7 16.Bf4 Ke6 17.Nb4 Kf5 18.Be3 Ke6 19.Nc4 Kf5 20.Bc5 Ke4 21.Nb6
 45+	53:34	32 755 927 319	10 189 308	+6,56	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd6 7.Bc5+ Kd7 8.Bb4 Kc8 9.Bd6 Kd7 10.Bf4 Ke6 11.Nc5+ Kd5 12.Na4 Ke4 13.Bd6 Kd5 14.Bb4 Ke4 15.Nb6 Kf5 16.Nc6 Ke6 17.Ne7 Kf7 18.Bc5 Kf6 19.Ned5+ Kf7 20.Ba3 Kg6 21.Nc7 Kh7 22.Nbd5 Kg6 23.Bb2 Kf5 24.Nb6
 45+	53:40	32 812 263 663	10 188 210	+7,47	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Ba7 Kd6 7.Be3 Ke6 8.Nc4 Kf5 9.Bc5 Ke4 10.Nb6 Ke5 11.N4d5 Ke4 12.Ba3 Ke5 13.Nc7 Kd4 14.Be7 Ke4 15.Bf6 Kd3 16.Ne8 Kc2 17.Nd6 Kb3 18.Bd4 Ka2 19.Nbc4 Kb1 20.Ne4 Kc1 21.Be5
 45+	53:45	32 854 970 997	10 187 114	+8,84	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Bf6 Ke6 8.Bc3 Kd6 9.Bb4+ Ke6 10.Nc7+ Kd7 11.Nd5 Kd8 12.Bd6 Kd7 13.Bf4 Ke6 14.Nb4 Kf5 15.Be3 Kg4 16.Nc4 Kf3 17.Ba7 Ke4 18.Bc5 Kf5 19.Bd4 Ke6 20.Be3 Kf5 21.Nd6+ Ke6 22.Bf4 Kd7 23.Ne4 Ke7 24.Nc5
 45+	53:46	32 866 559 996	10 186 768	+10,89	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7
 45+	53:46	32 867 528 398	10 186 693	+13,97	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Be5 Kg5 23.Nb4
 45+	53:46	32 869 305 976	10 186 565	+18,58	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Be5 Kg5 23.Bf6+
 45+	53:47	32 875 712 035	10 186 347	+25,50	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Nf5+
 45+	53:47	32 876 455 652	10 186 290	+35,86	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Nb4
 45+	53:48	32 885 787 787	10 186 230	+51,41	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Nb4 Kg6 23.Bd4
 45+	53:48	32 889 492 210	10 186 106	+74,74	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Nb4 Kg6 23.Nd3
 45+	53:48	32 890 503 630	10 186 038	+109,72	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Nb4 Kg6 23.Nd3 Kg5 24.Nb4
 45	53:48	32 890 503 630	10 186 035	+109,72	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Nb4 Kg6 23.Nd3 Kg5 24.Nb4
 46	1:09:35	42 737 726 587	10 235 524	+5,41	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Bc5 Kd7 7.Nd5 Ke6 8.Nb6 Kf6 9.Nac4 Kf5 10.Nd6+ Ke5 11.Ne8 Ke4 12.Nc7 Kd3 13.Ba3 Ke4 14.Bd6 Ke3 15.Ne6 Ke4 16.Bc5 Kf5 17.Nc7 Kf6 18.Bd6 Kg6 19.Be7 Kf7 20.Bc5
 47+	1:14:46	45 897 255 229	10 230 383	+5,53	1.Kf1
 47+	1:15:29	46 336 753 113	10 229 934	+5,65	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Be5 Kf5 6.Bb8 Kf6 7.Nd5+ Kf5 8.Bc7 Ke6 9.Ncb6 Kf5 10.Bb8 Kg6 11.Nd7 Kf7 12.Ne5+ Ke6 13.Nb6 Kf5 14.Ned7 Kg6 15.Nc5 Kf7 16.Be5 Ke7 17.Nc4 Kf7 18.Bd4 Ke7 19.Bc3 Kf8 20.Bf6 Kf7 21.Bd8 Kg6 22.Nd6 Kg7 23.Nf5+ Kf8 24.Nd6
 47+	1:16:09	46 742 967 614	10 228 540	+5,83	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Be5 Kf5 6.Bb8 Kf6 7.Bc7 Kf7 8.Nb6 Ke6 9.Bb8 Kf5 10.Bd6 Ke4 11.N4d5 Kf5 12.Bc5 Ke4 13.Nc7 Kd3 14.Nbd5 Kc4 15.Ba7 Kd3 16.Nf6 Kc4 17.Ne4 Kb4 18.Bd4 Kc4 19.Bb6 Kb3 20.Nd6 Kc3 21.Ba7 Kb3 22.Bc5
 47+	1:16:33	46 982 836 422	10 227 186	+6,11	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Nd5 Kf7 8.Nc7 Ke7 9.Bf4 Kd8 10.Na6 Ke8 11.Nc5 Ke7 12.Be5 Ke8 13.Nc4 Kf7 14.Bb2 Ke7 15.Bd4 Kf7 16.Be5 Ke7 17.Nd6 Kd8 18.Nf5 Ke8 19.Bd6 Kf7 20.Be7 Kg6 21.Nd6 Kg7 22.Bd8 Kg8 23.Ne6 Kh7 24.Nc4
 47+	1:16:38	47 025 229 466	10 226 779	+6,52	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Nd5 Kf7 8.Nc7 Ke7 9.Bf4 Kd8 10.Na6 Ke8 11.Bb8 Kf7 12.Nc5 Kf6 13.Nc4 Kg5 14.Be5 Kf5 15.Bb2 Kg5 16.Ne6+ Kg6 17.Nd6 Kh7 18.Nf4 Kh6 19.Bf6 Kh7 20.Nd5 Kg6 21.Bb2 Kg5 22.Be5 Kh5 23.Nf4+ Kg5 24.Nd3
 47+	1:16:47	47 112 646 629	10 225 574	+7,13	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd6+ Kf3 15.Be5 Ke4 16.Bh8 Ke3 17.Na5 Kd2 18.Be5 Kd3 19.Bf6 Ke4 20.Bb2 Ke3 21.Nc4+ Kd3 22.Nd6 Kc2 23.Be5 Kb3 24.Nd5
 47+	1:16:55	47 198 207 521	10 225 012	+8,04	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6
 47+	1:17:01	47 255 707 574	10 224 608	+9,41	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bb2 Kg5 22.Nd5 Kg6 23.Ba1
 47+	1:17:08	47 324 300 942	10 223 797	+11,46	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bb2 Kg5 22.Nd5 Kg6 23.Nb4
 47+	1:17:11	47 350 617 854	10 223 168	+14,54	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bb2 Kg5 22.Ne6+
 47+	1:17:18	47 414 449 832	10 222 266	+19,15	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bb2 Kg5 22.Ne6+ Kh5 23.Nc4
 47+	1:17:20	47 438 184 117	10 222 019	+26,06	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bb2 Kg5 22.Nf7+
 47+	1:17:21	47 441 925 243	10 221 860	+36,43	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bc3
 47+	1:17:22	47 452 414 016	10 221 739	+51,98	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bc3 Kg5 22.Nf7+
 47+	1:17:23	47 456 869 020	10 220 057	+75,30	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Nd5
 47+	1:17:24	47 466 161 872	10 219 926	+110,29	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Nd5 Kh7 22.Bd4
 47	1:17:24	47 466 161 872	10 219 924	+110,29	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Nd5 Kh7 22.Bd4
Top
User avatar
hgm
Posts: 27787
Joined: Fri Mar 10, 2006 10:06 am
Location: Amsterdam
Full name: H G Muller

Re: Anti-Engine Puzzle

Post by hgm »

FairyGen says both BNN-K and NNB-K are general draws, although in the case of a royal Knight thereare some rather long mates. I cannot imagine it makes much difference whether the Knight is royal or not.

However, that is on an otherwise empty board. And that is not what we have here. It is conceivable that white can force a mate in the 'pseudo-corner' d1, by making use of the fact that one of the pieces can cross the pseudo-edge and be protected by the white King. Or that black can be checkmated on h3, the Pawn on g3 blocking what would otherwise be his escape route.
Top
MikeGL
Posts: 1010
Joined: Thu Sep 01, 2011 2:49 pm

Re: Anti-Engine Puzzle

Post by MikeGL »

hgm wrote: ↑Mon Mar 08, 2021 10:19 pm FairyGen says both BNN-K and NNB-K are general draws, although in the case of a royal Knight thereare some rather long mates. I cannot imagine it makes much difference whether the Knight is royal or not.

However, that is on an otherwise empty board. And that is not what we have here. It is conceivable that white can force a mate in the 'pseudo-corner' d1, by making use of the fact that one of the pieces can cross the pseudo-edge and be protected by the white King. Or that black can be checkmated on h3, the Pawn on g3 blocking what would otherwise be his escape route.
In my opinion, if there's an escape route at h1 corner then black whould've done it at a8 corner too.
Since a8 corner is just a mirror of h1 corner of the board.
I told my wife that a husband is like a fine wine; he gets better with age. The next day, she locked me in the cellar.
Top
peter
Posts: 3185
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Anti-Engine Puzzle

Post by peter »

Vinvin wrote: ↑Mon Mar 08, 2021 10:13 pm
peter wrote: ↑Mon Mar 08, 2021 6:28 pm
Vinvin wrote: ↑Mon Mar 08, 2021 4:10 pm It's a job for Sting-SF.
If you believe in the eval only.
Not much of a mate in sight, not even in the longest output- line, is there?
Score above +3 after 23 minutes.
One hour search (6*4GHz) :

Code: Select all

Sting-sf-27:
...
 20	00:00	 561 679	1 172 607	+2,82	1.Kf1 Kd6 2.Nf4 Kd7 3.Bf6 Kc6 4.Nfxg2 Kd7 5.Be5 Kc6 6.Bd4 Kd6 7.Bg7 Kc5 8.Bf6 Kd6 9.Bd4 Kd7 10.Bc5 Ke6
 21-	00:00	 1 219 961	2 147 818	+2,70	1.Kf1 Kd6
 21-	00:00	 1 752 323	2 750 899	+2,58	1.Kf1 Kd6 2.Nf4 Kd7 3.Nexg2 Kd6 4.Bd4 Kc6 5.Bg7 Kc5 6.Be5 Kc6 7.Bc3 Kc5 8.Bg7 Kb4 9.Bd4 Kb3 10.Bf6 Kc2 11.Ne3+
 21	00:00	 2 005 340	2 993 044	+2,58	1.Kf1 Kd6 2.Nf4 Kd7 3.Nfxg2 Kd6 4.Bd4 Kc6 5.Be5 Kd7 6.Bb2 Kd6 7.Bg7 Kc5 8.Bf6 Kd6 9.Bb2 Kc5 10.Be5
 22	00:00	 2 367 887	3 297 892	+2,58	1.Kf1 Kd6 2.Nf4 Kd7 3.Nfxg2 Kd6 4.Bd4 Kc6 5.Be5
 23	00:00	 2 737 813	3 550 989	+2,58	1.Kf1 Kd6 2.Nf4
 24+	00:00	 3 681 812	4 150 859	+2,66	1.Kf1
 24+	00:01	 5 796 137	5 202 995	+2,74	1.Kf1
 24	00:01	 6 884 216	5 560 756	+2,66	1.Kf1 Kd6 2.Nf4 Kc5 3.Nd3+ Kd6 4.Be5+ Ke6 5.Bf4 Ke7 6.Bb8 Kf6 7.Ne5 Ke6 8.Nf3 Kf6 9.Be5+ Kg6 10.Nd4 Kf7 11.Ne2 Ke6 12.Bf4 Kf6 13.Nd4 Kg6 14.Nxg2 Kh5 15.Bb8
 25-	00:01	 9 085 131	6 072 948	+2,58	1.Kf1 Kd6
 25	00:01	 10 174 728	6 307 952	+2,58	1.Kf1 Kd6 2.Nf4 Kc5 3.Nfxg2 Kb5 4.Bg7 Kc5 5.Be5 Kc6
 26	00:01	 11 445 977	6 510 794	+2,58	1.Kf1 Kd6 2.Nf4 Kc5 3.Nfxg2 Kb5 4.Bg7 Kc5 5.Be5
 27+	00:02	 14 086 606	6 874 868	+2,66	1.Kf1
 27+	00:02	 14 438 075	6 888 394	+2,74	1.Kf1
 27	00:02	 18 349 534	7 264 265	+2,58	1.Kf1 Kd6 2.Bd4 Ke6 3.Nf4+ Kd7 4.Nfxg2 Ke6 5.Nf4+ Kd6 6.Nfg2
 28	00:02	 20 695 194	7 428 282	+2,58	1.Kf1 Kd6 2.Bd4 Ke6 3.Nf4+ Kd7 4.Nfxg2 Ke6 5.Nf4+ Kd6 6.Nf5+ Kc6 7.Be3 Kb5 8.Ba7 Kc4 9.Bb6 Kc3 10.Bc5 Kc4 11.Bd6 Kc3 12.Be7 Kb3 13.Bc5
 29	00:03	 25 285 299	7 692 515	+2,58	1.Kf1 Kd6 2.Bd4 Ke6 3.Nf4+ Kd7 4.Nfxg2 Ke6 5.Nf4+ Kd6 6.Nf5+ Kc6 7.Be3 Kb5 8.Ba7 Kc4 9.Bb6 Kc3 10.Bc5 Kc4 11.Bd6 Kc3 12.Be7 Kb3 13.Bc5
 30	00:03	 31 370 226	7 909 789	+2,58	1.Kf1 Kd6 2.Bd4 Ke6 3.Nf4+ Kd7 4.Nfxg2 Ke6 5.Nf4+ Kd6 6.Nf5+ Kc6 7.Be3 Kb5 8.Ba7 Kc4 9.Bb6 Kc3 10.Bc5 Kc4 11.Bd6 Kc3 12.Be7 Kb3 13.Bc5
 31	00:05	 44 775 065	8 362 918	+2,58	1.Kf1 Kd6 2.Bd4 Ke6 3.Nf4+ Kd7 4.Nfxg2 Ke6 5.Nf4+ Kd6 6.Nf5+ Kc6 7.Be3 Kb5 8.Ba7 Kc4 9.Bb6
 32-	00:08	 71 249 722	8 835 531	+2,50	1.Kf1 Kd6
 32-	00:10	 95 873 620	9 061 778	+2,42	1.Kf1 Kd6
 32-	00:13	 128 196 321	9 297 673	+2,30	1.Kf1 Kd6 2.Kxg2 f1Q+ 3.Nxf1 Kxd5 4.Kxh1 Bf2 5.Nxg3 Bxg3 6.Bc3 Kc6 7.Be5 Bxe5 8.Kg2 Kb6 9.Kh1 Kc5 10.Kg2 Kd6 11.Kh1 Ke6 12.Kg2 Kf6 13.Kh1 Kf5 14.Kg2 Kf6
 32-	00:18	 171 560 276	9 481 611	+2,12	1.Kf1 Kd6 2.Kxg2 f1Q+ 3.Nxf1 Kxd5 4.Kxh1 Bf2 5.Nxg3 Bxg3 6.Bc3 Kc6 7.Be5 Bxe5 8.Kg2 Kb6 9.Kh1 Kc5 10.Kg2 Kd6 11.Kh1 Ke6 12.Kg2 Kf6 13.Kh1 Kf5 14.Kg2 Kf6
 32	00:23	 229 378 919	9 625 636	+2,42	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kc6 4.Nf4 Kb5 5.Bg7 Kc5 6.Ne2 Kd6 7.Nd4 Kc5 8.Ndf5 Kc6 9.Bf8 Kb7 10.Nd4 Kc8 11.Nxg2 Kd7 12.Ba3 Ke8 13.Bd6 Kf7 14.Bf4 Kg6 15.Be3 Kf6 16.Bf4
 33	00:25	 247 200 643	9 552 909	+2,42	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kc6 4.Nf4 Kb5 5.Bg7 Kc5 6.Ne2 Kd6 7.Nd4 Kc5 8.Ndf5 Kc6 9.Bf8 Kb7 10.Nd4 Kc8 11.Nxg2 Kd7 12.Ba3 Ke8 13.Bd6 Kf7 14.Bf4 Kg6 15.Bd6
 34	00:29	 281 458 659	9 532 247	+2,42	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kc6 4.Nf4 Kb5 5.Bg7 Kc5 6.Ne2 Kd6 7.Nd4 Kc5 8.Ndf5 Kc6 9.Bf8 Kb7 10.Nd4 Kc8 11.Nxg2 Kd7 12.Ba3 Kc8 13.Bd6 Kb7 14.Be5 Kb6 15.Nf5 Kc5 16.Nf4 Kb5 17.Nd5 Kc4 18.Nde3+
 35	00:47	 457 797 058	9 566 137	+2,42	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kc6 4.Nf4 Kb5 5.Bg7 Kc5 6.Nfd5 Kc6
 36	00:58	 551 542 887	9 474 402	+2,42	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kc6 4.Nf4 Kb5 5.Bg7 Kc5 6.Nfd5 Kd6 7.Bd4
 37-	01:12	 692 100 893	9 507 272	+2,34	1.Kf1 Kd6
 37-	01:34	 897 837 285	9 490 178	+2,26	1.Kf1 Kd6
 37-	01:49	1 042 795 876	9 487 293	+2,14	1.Kf1 Kd6 2.Nf4 Kd7 3.Nfxg2 Kd6 4.Nf4 g2+ 5.Kxg2 f1Q+ 6.Nxf1 Nf2 7.Ng3 Ng4 8.Ne4+ Kc6 9.Kh1 Ne3 10.Bc3 Ng4 11.Bd2 Be3 12.Bxe3 Nxe3 13.Kxh2 Ng4+ 14.Kh1 Ne3 15.Nd5 Nxd5 16.Kg1 Kb5 17.Kh1 Kc6
 37-	02:31	1 434 898 616	9 450 443	+1,68	1.Kf1 Kd6 2.Nf4 Kd7 3.Nfxg2 Kd6 4.Nf4 g2+ 5.Kxg2 f1Q+ 6.Nxf1 Nf2 7.Ng3 Ng4 8.Ne4+ Kc6 9.Kh1 Ne3 10.Bc3 Ng4 11.Bd2 Be3 12.Bxe3 Nxe3 13.Kxh2 Ng4+ 14.Kh1 Ne3 15.Nd5 Nxd5 16.Kg1 Kb5 17.Kh1 Kc6
 37	03:03	1 758 257 993	9 585 862	+1,73	1.Kf1 Kd6 2.Nf4 Kd7 3.Be5 Kc6 4.Bb2 Kd7 5.Nf5 Kc6 6.Ba1 Kc7 7.Bg7 Kc6 8.Bc3 Kb6 9.Ne3 Kc5 10.Bf6 Kd6 11.Bd4
 38+	03:11	1 835 719 901	9 593 168	+1,85	1.Kf1
 38+	03:14	1 862 786 770	9 593 784	+1,97	1.Kf1 Kd6 2.Nf4 Kd7 3.Be5 Kc8 4.Ng4 Kd7 5.Bb2 Kc6 6.Ba3 Kb6 7.Ne5 Kb5 8.Be7 Ka4 9.Nc4 Kb5 10.Ne3 Kc6 11.Bb4 Kb6 12.Bf8 Kc6 13.Nfxg2 Kd7 14.Bb4 Ke8 15.Bc3 Kf7 16.Ba1 Ke6 17.Bg7 Kd6 18.Bb2
 38+	03:15	1 879 433 309	9 602 761	+2,16	1.Kf1 Kd6 2.Nf4 Kd7 3.Be5 Kc8 4.Ng4 Kd7 5.Bb2 Kc6 6.Ba3 Kb6 7.Ne5 Kb5 8.Be7 Ka4 9.Nc4 Kb5 10.Ne3 Kc6 11.Bb4 Kb6 12.Bf8 Kc6 13.Nfxg2 Kd7 14.Bb4 Ke8 15.Bc3 Kf7 16.Ba1 Ke6 17.Bg7 Kd6 18.Bb2 Kd7 19.Bf6 Kd6 20.Bd4
 38	03:41	2 152 813 217	9 710 917	+2,14	1.Kf1 Kd6 2.Nf4 Kd7 3.Be5 Kc8 4.Ng4 Kd7 5.Bb2 Kc6 6.Ba3 Kb6 7.Ne5 Kb5 8.Be7 Ka4 9.Nc4 Kb5 10.Ne3 Kc6 11.Bb4 Kb5 12.Bf8 Kb6 13.Nexg2 Kc6 14.Bg7 Kc5 15.Bf6 Kb4 16.Be5 Kb3 17.Ne6 Kc2 18.Bh8 Kd3 19.Nc5+ Kc4
 39-	04:52	2 867 284 758	9 787 257	+2,02	1.Kf1 Kd6
 39-	05:59	3 570 617 651	9 928 918	+1,89	1.Kf1 Kd6 2.Kxg2 f1N 3.Nxf1 Kxd5 4.Kxh1 Bf2 5.Nxg3 Bxg3 6.Bc3 Ke4 7.Bb2 Bd6 8.Kg2 Kd3 9.Kh1 Ke4
 39+	07:10	4 315 291 579	10 017 204	+2,26	1.Kf1 Kd6 2.Nf4 Kd7 3.Nf5 Kc6 4.Be5 Kd7 5.Nd4 Kd8 6.Nd5 Kd7 7.Nb6+ Ke7 8.Nc4 Kd7 9.Bd6 Kc8 10.Ne5 Kb7 11.Bc5 Ka6 12.Nf5 Kb5 13.Bd4 Ka4 14.Nd6 Kb3 15.Nd3 Ka4 16.Nf4 Kb4 17.Nd5+ Kb3 18.Ba1 Kc2 19.Nf4 Kb3 20.Be5 Kc2 21.Bd4 Kc1 22.Nc4 Kb1 23.Ne3 Kc1 24.Ne2+
 39	09:39	5 794 923 709	9 998 729	+1,97	1.Kf1 Kd6 2.Nf4 Kd7 3.Nf5 Kc6 4.Be5 Kd7 5.Nd4 Kd8 6.Nd5 Kd7 7.Nb6+ Ke7 8.Nc4 Kd7 9.Bd6 Kc8 10.Ne5 Kb7 11.Bc5 Ka6 12.Nf5 Kb5 13.Bd4 Ka4 14.Nd6 Kb3 15.Nd3 Ka4 16.Nf4 Kb4 17.Nd5+ Kb3 18.Ne3 Ka3 19.Nxg2 Kb4 20.Bb6 Kc3 21.Nf5
 40+	09:44	5 838 582 500	9 995 364	+2,10	1.Kf1
 40+	10:52	6 504 130 036	9 966 869	+2,22	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kd6 4.Bb2 Kd7 5.Bc3 Ke7 6.Bh8 Kf7 7.Nf4 Ke7 8.Bb2 Kd6 9.Bf6 Kc5 10.Be5 Kc6 11.Ne6 Kb5 12.Bd6 Kc6 13.Ba3 Kd7 14.Nf4 Kc6 15.Bf8 Kd7 16.Nf5 Kc6 17.Be7 Kb5 18.Ne3 Ka4 19.Ne2 Kb3 20.Bd6 Kb2 21.Nf4
 40	13:12	7 825 322 937	9 873 676	+2,10	1.Kf1 Kd6 2.Nb4 Kc5 3.Nd3+ Kd6 4.Bb2 Kd7 5.Bc3 Ke7 6.Bh8 Kf7 7.Nf4 Ke7 8.Bb2 Kd6 9.Bf6 Kc7 10.Be7 Kd7 11.Bc5 Ke8
 41+	14:17	8 433 932 594	9 839 092	+2,22	1.Kf1
 41+	14:20	8 468 806 011	9 836 091	+2,34	1.Kf1 Kd6 2.Nb4 Kc5 3.Bc3 Kd6 4.Nd3 Ke7 5.Bb4+ Kd7 6.Bc5 Ke6 7.Bf8 Kf7 8.Bd6 Ke6 9.Be5 Kd7 10.Nc5+ Kc6 11.Ne6 Kd7 12.Nd4 Ke7 13.Ng4 Kd7 14.Bf4 Ke7 15.Bb8 Kd8 16.Bd6 Kc8 17.Ne5 Kd8 18.Nc2 Kc8 19.Bb4 Kb7 20.Ne3 Kc7 21.Nxg2 Kb6 22.Be7 Kb5 23.Bd6
 41+	14:37	8 621 073 732	9 827 867	+2,52	1.Kf1 Kd6 2.Nb4 Kc5 3.Bc3 Kd6 4.Nd3 Ke7 5.Ne5 Kd6 6.Nf3 Kc5 7.Bd4+ Kd6 8.Bb2 Kc5 9.Ba3+ Kb5 10.Nd4+ Ka4 11.Bf8 Ka5 12.Nd5 Ka6 13.Nb4+ Kb6 14.Nbc6 Kc7 15.Be7 Kd7 16.Bb4 Kc7 17.Ne5 Kb6 18.Nc4+ Kb7 19.Bd6 Ka6 20.Bf4 Kb7 21.Be5
 41+	17:10	10 109 957 884	9 814 911	+2,79	1.Kf1 Kd6 2.Bd4 Kc6 3.Nb4+ Kc7 4.Nc4 Kd7 5.Bc3 Ke6 6.Be5 Kd7 7.Bd6 Ke6 8.Bb8 Kf6 9.Nd2 Kf5 10.Bc7 Kg4 11.Nb3 Kf5 12.Nc5 Kg6 13.Be5 Kf5 14.Bd6 Kf6 15.Nc2 Kg6 16.Nd4 Kf7 17.Nce6 Kg6 18.Nf4+
 41	20:49	12 429 482 953	9 945 933	+2,38	1.Kf1 Kd6 2.Bd4 Kc6 3.Nb4+ Kc7 4.Nc4 Kd7 5.Bc3 Ke6 6.Be5 Kd7 7.Bd6 Ke6 8.Bb8 Kf6 9.Nd2 Kf5 10.Bc7 Kg4 11.Nb3 Kf5 12.Nc5 Kg6 13.Be5 Kf5 14.Nc6 Kg6 15.Bc7 Kf5 16.Nd4+ Kg4 17.Be5 Kg5 18.Nd3 Kg6 19.Bd6 Kf7 20.Ba3
 42+	21:41	12 976 676 565	9 972 661	+2,50	1.Kf1
 42+	22:06	13 244 910 170	9 984 049	+2,62	1.Kf1 Kd6 2.Bd4 Kc6 3.Be5 Kb7 4.Nf6 Kc8 5.Nc2 Kd8 6.Nd4 Kc8 7.Bd6 Kb7 8.Nd5 Ka7 9.Bf4 Ka6 10.Nc7+ Ka5 11.Bd2+ Kb6 12.Nce6 Ka6 13.Nc5+ Kb6 14.Na4+ Kc7 15.Bf4+ Kd8 16.Nc5 Ke7 17.Be5 Kf8 18.Bf6
 42+	22:47	13 670 423 910	9 994 789	+2,80	1.Kf1 Kd6 2.Bd4 Kc6 3.Be5 Kb7 4.Nf6 Kc8 5.Nc2 Kd8 6.Nd4 Kc8 7.Bd6 Kb7 8.Nd7 Ka6 9.Bc7
 42+	23:01	13 811 578 830	10 000 484	+3,08	1.Kf1 Kd6 2.Bd4 Kc6 3.Be5 Kb7 4.Nf6 Kc8 5.Nc2 Kd8 6.Nd4 Kc8 7.Bd6 Kb7 8.Nd7 Ka6 9.Bc7 Kb7 10.Ba5 Ka6 11.Bd8 Ka7 12.Nc5 Kb8 13.Ba5 Ka8 14.Nc2 Kb8 15.Ne3 Kc8 16.Nc4 Kb8 17.Ne5 Kc8 18.Ncd3
 42+	24:45	14 898 737 203	10 030 016	+3,48	1.Kf1 Kd6 2.Bf6 Kc5 3.Nf4 Kb5 4.Nd3 Ka4 5.Be5 Kb3 6.Nc1+ Ka3 7.Bf6 Kb4 8.Bg7 Ka3 9.Nd5 Ka4 10.Bf8 Kb5 11.Ne3 Kc6 12.Ne2 Kd7 13.Nd4 Ke8 14.Bc5 Kd7 15.Nd5 Kd8 16.Bb4 Kd7 17.Nf6+ Kc7 18.Be7 Kc8 19.Bd6 Kd8 20.Nc6+ Kc8 21.Bf4
 42	28:12	17 069 266 473	10 085 947	+3,47	1.Kf1 Kd6 2.Bf6 Kc5 3.Bc3 Kd6 4.Nb4 Kc5 5.Nbc2 Kb5 6.Bd2 Kb6 7.Bb4 Ka7 8.Nd5 Kb7 9.Nd4 Ka6 10.Nf6 Kb6 11.Bd6 Ka5 12.Ne4 Ka4 13.Be7 Ka5 14.Nd2 Kb6 15.Bd6 Ka5 16.Nc4+ Ka4 17.Ne3 Ka5 18.Be7
 43	33:33	20 416 010 073	10 141 225	+3,47	1.Kf1 Kd6 2.Bf6 Kc5 3.Bc3 Kd6 4.Nb4 Ke6 5.Ned5 Kd6 6.Nf4 Kc5 7.Nbd5 Kc4 8.Bf6 Kc5 9.Be5 Kc6 10.Ne3 Kd7 11.Ne2 Ke7 12.Bb2 Kd7 13.Nf4 Kc6 14.Ba3 Kd7 15.Bc5 Kd8 16.Nfd5 Ke8 17.Bd4 Kd7 18.Nc3 Kd6 19.Ne4+
 44+	36:12	22 046 611 241	10 146 393	+3,59	1.Kf1
 44+	36:48	22 409 400 208	10 145 881	+3,71	1.Kf1 Kd6 2.Bf6 Ke6 3.Bg5 Kf7 4.Nf4
 44+	38:06	23 192 394 209	10 145 315	+3,89	1.Kf1 Kd6 2.Bf6 Ke6 3.Bg5 Kf7 4.Nc7 Kg6 5.Be7 Kf7 6.Nf5 Kg8 7.Bh4 Kh7 8.Nd6 Kg8 9.Nd5 Kh7 10.Be7 Kg7 11.Bf6+ Kg6 12.Be5 Kg5 13.Ne7 Kg4 14.Bf6 Kf4 15.Bg7 Kg5 16.Bc3 Kf4 17.Ng6+ Ke3 18.Ne5 Kf4 19.Nd7 Kg5 20.Nb6
 44+	38:21	23 346 478 332	10 143 026	+4,17	1.Kf1 Kd6 2.Bf6 Ke6 3.Bg5 Kf7 4.Nc7 Kg6 5.Be7 Kf7 6.Nf5 Kg8 7.Bh4 Kh7 8.Nd6 Kg8 9.Nd5 Kh7 10.Be7 Kg7 11.Bf6+ Kg6 12.Be5 Kg5 13.Ne7 Kg4 14.Bf6 Kf4 15.Bg7 Kg5 16.Bc3 Kf4 17.Ng6+ Ke3 18.Ne5 Kf4 19.Nec4
 44+	40:44	24 807 453 606	10 148 866	+4,58	1.Kf1 Kd6 2.Bf6 Ke6 3.Bd4 Kd6 4.Nc3 Ke6 5.Ne2 Ke7 6.Ba1 Kd6 7.Nf4 Kc6 8.Bd4 Kb5 9.Ne6 Ka6 10.Bc5 Kb5 11.Be7 Kb6 12.Nd4 Kc7 13.Ba3 Kd7 14.Nc4 Kc7 15.Ne5 Kb6 16.Be7 Kc7 17.Bc5 Kd8 18.Nf5 Kc7 19.Nd6 Kd8 20.Ndc4 Ke8 21.Bd6 Kd8 22.Bb4 Ke8 23.Ne3 Kd8 24.Nf5 Ke8 25.Ba3
 44+	41:26	25 239 223 170	10 150 183	+5,19	1.Kf1 Kd6 2.Bf6 Ke6 3.Bd4 Kd6 4.Nf4 Kc6 5.Nf5 Kb5 6.Ne7 Kb4 7.Nc6+ Kc4 8.Be3 Kb5 9.Ne5 Ka6 10.Ne6 Kb7 11.Bc5 Kc8 12.Be7 Kb7 13.Bd8 Ka6 14.Nd4 Kb7 15.Nb5 Kb8 16.Nd6 Ka7 17.Ba5 Ka6 18.Nec4 Ka7 19.Bb6+ Ka6 20.Bc7 Ka7 21.Ba5 Ka6 22.Bc3
 44	46:42	28 459 507 770	10 155 271	+4,84	1.Kf1 Kd6 2.Bf6 Ke6 3.Bd4 Kd6 4.Nf4 Kc6 5.Nf5 Kb5 6.Ne7 Kb4 7.Nc6+ Kc4 8.Be3 Kb5 9.Ne5 Ka6 10.Ne6 Kb7 11.Bc5 Kc8 12.Bb6 Kb7 13.Bd8 Ka6 14.Nd4 Kb7 15.Nb5 Kc8 16.Ba5 Kb7 17.Nd6+ Ka6 18.Bd8 Ka7 19.Ne4
 45+	47:13	28 771 397 083	10 154 454	+4,96	1.Kf1
 45+	47:13	28 771 779 781	10 154 431	+5,09	1.Kf1 Kd6 2.Bf6 Ke6 3.Bd4 Kd7 4.Nb4 Kc8 5.Bc5 Kd7 6.Ba7 Kd6 7.Nc4+ Kc7 8.Bc5 Kb7 9.Bf8 Kb8 10.Na5 Kc7 11.Bc5 Kb8 12.Bd6+ Ka7 13.Bc7 Ka8 14.Nd3 Ka7 15.Nc5 Ka8 16.Bb6 Kb8 17.Na6+ Ka8 18.Nb4 Kb8 19.Bc5
 45+	50:11	30 617 229 898	10 167 874	+5,27	1.Kf1 Kd6 2.Nb4 Kc5 3.Bc3 Kb5 4.Ned5 Kc5 5.Bd2 Kd6 6.Bh6 Kd7 7.Nb6+ Kc7 8.Nc4 Kb7 9.Bf4 Ka7 10.Be3+ Kb8 11.Nd5 Kb7 12.Nc3 Kc7 13.Na5 Kb8 14.Nd5 Ka8 15.Bc5 Kb8 16.Bd4 Ka8 17.Nc7+ Kb8 18.Bb6 Kc8 19.Na6 Kd7 20.Bc5 Kd8 21.Bd6 Kd7 22.Bf4 Ke6 23.Nb4 Kf5 24.Be3 Kg4 25.Nc4 Kf3 26.Bc5 Ke4 27.Be3
 45+	50:11	30 621 080 820	10 167 590	+5,54	1.Kf1 Kd6 2.Nb4 Kc5 3.Bc3 Kb5 4.Ned5 Kc5 5.Bd2 Kd6 6.Bh6 Kd7 7.Nb6+ Kc7 8.Nc4 Kb7 9.Bf4 Ka7 10.Be3+ Kb8 11.Na5 Kc7 12.Na6+ Kd6 13.Bc5+ Kd7 14.Ba3 Kc8 15.Bd6 Kd7 16.Bf4 Ke6 17.Nb4 Kf5 18.Be3 Ke6 19.Bc5 Kd7 20.Nd5 Ke6 21.Nb6 Kf6 22.Ba3 Ke6 23.Nc6 Kf5 24.Ne7+ Ke5 25.Bc5 Ke6 26.Bb4
 45+	50:11	30 621 419 295	10 167 540	+5,95	1.Kf1 Kd6 2.Nb4 Kc5 3.Bc3 Kb5 4.Ned5 Kc5 5.Bd2 Kd6 6.Bh6 Kd7 7.Nb6+ Kc7 8.Nc4 Kb7 9.Bf4 Ka7 10.Be3+ Kb8 11.Na5 Kc7 12.Na6+ Kd6 13.Bc5+ Kd7 14.Ba3 Kc8 15.Bd6 Kd7 16.Bf4 Ke6 17.Nb4 Kf5 18.Be3 Ke6 19.Nc4 Kf5 20.Bc5 Ke4 21.Nb6
 45+	53:34	32 755 927 319	10 189 308	+6,56	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd6 7.Bc5+ Kd7 8.Bb4 Kc8 9.Bd6 Kd7 10.Bf4 Ke6 11.Nc5+ Kd5 12.Na4 Ke4 13.Bd6 Kd5 14.Bb4 Ke4 15.Nb6 Kf5 16.Nc6 Ke6 17.Ne7 Kf7 18.Bc5 Kf6 19.Ned5+ Kf7 20.Ba3 Kg6 21.Nc7 Kh7 22.Nbd5 Kg6 23.Bb2 Kf5 24.Nb6
 45+	53:40	32 812 263 663	10 188 210	+7,47	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Ba7 Kd6 7.Be3 Ke6 8.Nc4 Kf5 9.Bc5 Ke4 10.Nb6 Ke5 11.N4d5 Ke4 12.Ba3 Ke5 13.Nc7 Kd4 14.Be7 Ke4 15.Bf6 Kd3 16.Ne8 Kc2 17.Nd6 Kb3 18.Bd4 Ka2 19.Nbc4 Kb1 20.Ne4 Kc1 21.Be5
 45+	53:45	32 854 970 997	10 187 114	+8,84	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Bf6 Ke6 8.Bc3 Kd6 9.Bb4+ Ke6 10.Nc7+ Kd7 11.Nd5 Kd8 12.Bd6 Kd7 13.Bf4 Ke6 14.Nb4 Kf5 15.Be3 Kg4 16.Nc4 Kf3 17.Ba7 Ke4 18.Bc5 Kf5 19.Bd4 Ke6 20.Be3 Kf5 21.Nd6+ Ke6 22.Bf4 Kd7 23.Ne4 Ke7 24.Nc5
 45+	53:46	32 866 559 996	10 186 768	+10,89	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7
 45+	53:46	32 867 528 398	10 186 693	+13,97	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Be5 Kg5 23.Nb4
 45+	53:46	32 869 305 976	10 186 565	+18,58	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Be5 Kg5 23.Bf6+
 45+	53:47	32 875 712 035	10 186 347	+25,50	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Nf5+
 45+	53:47	32 876 455 652	10 186 290	+35,86	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Nb4
 45+	53:48	32 885 787 787	10 186 230	+51,41	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Nb4 Kg6 23.Bd4
 45+	53:48	32 889 492 210	10 186 106	+74,74	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Nb4 Kg6 23.Nd3
 45+	53:48	32 890 503 630	10 186 038	+109,72	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Nb4 Kg6 23.Nd3 Kg5 24.Nb4
 45	53:48	32 890 503 630	10 186 035	+109,72	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Na6+ Kd7 7.Be3 Ke7 8.Bf4 Ke6 9.Nc5+ Kd5 10.Nd7 Ke4 11.Bd2 Kf5 12.Bb4 Ke4 13.Ba3 Kf3 14.Nc5 Kf4 15.Nc4 Kf5 16.Bb2 Kg6 17.Nd6 Kg5 18.Bc3 Kg4 19.Nd7 Kh5 20.Nf6+ Kg6 21.Nd5 Kh6 22.Nb4 Kg6 23.Nd3 Kg5 24.Nb4
 46	1:09:35	42 737 726 587	10 235 524	+5,41	1.Kf1 Kd6 2.Bd4 Kd7 3.Nb4 Kc7 4.Nc4 Kb8 5.Na5 Kc7 6.Bc5 Kd7 7.Nd5 Ke6 8.Nb6 Kf6 9.Nac4 Kf5 10.Nd6+ Ke5 11.Ne8 Ke4 12.Nc7 Kd3 13.Ba3 Ke4 14.Bd6 Ke3 15.Ne6 Ke4 16.Bc5 Kf5 17.Nc7 Kf6 18.Bd6 Kg6 19.Be7 Kf7 20.Bc5
 47+	1:14:46	45 897 255 229	10 230 383	+5,53	1.Kf1
 47+	1:15:29	46 336 753 113	10 229 934	+5,65	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Be5 Kf5 6.Bb8 Kf6 7.Nd5+ Kf5 8.Bc7 Ke6 9.Ncb6 Kf5 10.Bb8 Kg6 11.Nd7 Kf7 12.Ne5+ Ke6 13.Nb6 Kf5 14.Ned7 Kg6 15.Nc5 Kf7 16.Be5 Ke7 17.Nc4 Kf7 18.Bd4 Ke7 19.Bc3 Kf8 20.Bf6 Kf7 21.Bd8 Kg6 22.Nd6 Kg7 23.Nf5+ Kf8 24.Nd6
 47+	1:16:09	46 742 967 614	10 228 540	+5,83	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Be5 Kf5 6.Bb8 Kf6 7.Bc7 Kf7 8.Nb6 Ke6 9.Bb8 Kf5 10.Bd6 Ke4 11.N4d5 Kf5 12.Bc5 Ke4 13.Nc7 Kd3 14.Nbd5 Kc4 15.Ba7 Kd3 16.Nf6 Kc4 17.Ne4 Kb4 18.Bd4 Kc4 19.Bb6 Kb3 20.Nd6 Kc3 21.Ba7 Kb3 22.Bc5
 47+	1:16:33	46 982 836 422	10 227 186	+6,11	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Nd5 Kf7 8.Nc7 Ke7 9.Bf4 Kd8 10.Na6 Ke8 11.Nc5 Ke7 12.Be5 Ke8 13.Nc4 Kf7 14.Bb2 Ke7 15.Bd4 Kf7 16.Be5 Ke7 17.Nd6 Kd8 18.Nf5 Ke8 19.Bd6 Kf7 20.Be7 Kg6 21.Nd6 Kg7 22.Bd8 Kg8 23.Ne6 Kh7 24.Nc4
 47+	1:16:38	47 025 229 466	10 226 779	+6,52	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Nd5 Kf7 8.Nc7 Ke7 9.Bf4 Kd8 10.Na6 Ke8 11.Bb8 Kf7 12.Nc5 Kf6 13.Nc4 Kg5 14.Be5 Kf5 15.Bb2 Kg5 16.Ne6+ Kg6 17.Nd6 Kh7 18.Nf4 Kh6 19.Bf6 Kh7 20.Nd5 Kg6 21.Bb2 Kg5 22.Be5 Kh5 23.Nf4+ Kg5 24.Nd3
 47+	1:16:47	47 112 646 629	10 225 574	+7,13	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd6+ Kf3 15.Be5 Ke4 16.Bh8 Ke3 17.Na5 Kd2 18.Be5 Kd3 19.Bf6 Ke4 20.Bb2 Ke3 21.Nc4+ Kd3 22.Nd6 Kc2 23.Be5 Kb3 24.Nd5
 47+	1:16:55	47 198 207 521	10 225 012	+8,04	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6
 47+	1:17:01	47 255 707 574	10 224 608	+9,41	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bb2 Kg5 22.Nd5 Kg6 23.Ba1
 47+	1:17:08	47 324 300 942	10 223 797	+11,46	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bb2 Kg5 22.Nd5 Kg6 23.Nb4
 47+	1:17:11	47 350 617 854	10 223 168	+14,54	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bb2 Kg5 22.Ne6+
 47+	1:17:18	47 414 449 832	10 222 266	+19,15	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bb2 Kg5 22.Ne6+ Kh5 23.Nc4
 47+	1:17:20	47 438 184 117	10 222 019	+26,06	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bb2 Kg5 22.Nf7+
 47+	1:17:21	47 441 925 243	10 221 860	+36,43	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bc3
 47+	1:17:22	47 452 414 016	10 221 739	+51,98	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Bc3 Kg5 22.Nf7+
 47+	1:17:23	47 456 869 020	10 220 057	+75,30	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Nd5
 47+	1:17:24	47 466 161 872	10 219 926	+110,29	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Nd5 Kh7 22.Bd4
 47	1:17:24	47 466 161 872	10 219 924	+110,29	1.Kf1 Kd6 2.Bd4 Ke6 3.Nb4 Kf7 4.Nc4 Ke6 5.Na5 Kf7 6.Be5 Kg6 7.Bh8 Kf5 8.Bd4 Kg4 9.Nd5 Kf5 10.Nc7 Kg5 11.Be3+ Kf5 12.Nc6 Ke4 13.Bc5 Kf4 14.Bd4 Ke4 15.Be5 Kf3 16.Na5 Kg4 17.Nc4 Kf5 18.Bd4 Kg6 19.Nd6 Kh7 20.Be5 Kg6 21.Nd5 Kh7 22.Bd4
Good job of Sting's without doubt too.
Mating score isn't really necessary, if engine obviously "sees" it should work within 50 moves, otherwise 0.00- near eval would arise, and of course the line should show progress, which Sting one's clearly does too. Probably Sting would make the mate <50 in play out too, (question remains, if without black blunders) didn't try it neither, and still, if it's to be seen as a study, the 50 moves don't count at all anyhow.

Yet I think it's the engines' problem as for eval still mainly, "thinking" 50 moves draw to arise before mate.
Peter.
Top
User avatar
hgm
Posts: 27787
Joined: Fri Mar 10, 2006 10:06 am
Location: Amsterdam
Full name: H G Muller

Re: Anti-Engine Puzzle

Post by hgm »

MikeGL wrote: ↑Mon Mar 08, 2021 10:28 pmIn my opinion, if there's an escape route at h1 corner then black whould've done it at a8 corner too.
Since a8 corner is just a mirror of h1 corner of the board.
Sure, but who cares about h1 or a8?

I made a small modification to my 4-men EGT generator, by putting 'boundary guards' also on a1, b1, c1, a2, b2, c2 and b3, to make those squares inaccessible. Then I let it generate NBN-K, and it prints:

Code: Select all

        mated    mate
King captures 2690350
mates    1436         ( 0.11 sec)
in-1      498    5850 ( 0.15 sec)
in-2      753    2382 ( 0.17 sec)
in-3     1368    6476 ( 0.20 sec)
in-4     5914   12269 ( 0.23 sec)
in-5     2099   29766 ( 0.27 sec)
in-6     5703   16288 ( 0.29 sec)
in-7     1507   31040 ( 0.33 sec)
in-8     5054   11067 ( 0.35 sec)
in-9     3410   24702 ( 0.39 sec)
in-10    6267   17525 ( 0.42 sec)
in-11    5496   32688 ( 0.46 sec)
in-12    7109   23243 ( 0.48 sec)
in-13    3734   28214 ( 0.52 sec)
in-14    5157   16239 ( 0.54 sec)
in-15    2196   15515 ( 0.58 sec)
in-16    3381   11224 ( 0.60 sec)
in-17    3247   14776 ( 0.65 sec)
in-18    4094   18432 ( 0.67 sec)
in-19    9947   26468 ( 0.71 sec)
in-20   15468   58001 ( 0.74 sec)
in-21   25427   79046 ( 0.80 sec)
in-22   19408   91528 ( 0.82 sec)
in-23   16481   65082 ( 0.88 sec)
in-24   15555   51117 ( 0.90 sec)
in-25   12316   47956 ( 0.95 sec)
in-26    9117   31298 ( 0.97 sec)
in-27   11528   27121 ( 1.02 sec)
in-28   14196   33009 ( 1.04 sec)
in-29   18162   43793 ( 1.09 sec)
in-30   22676   49044 ( 1.12 sec)
in-31   28786   56957 ( 1.18 sec)
in-32   47559   77644 ( 1.21 sec)
in-33   87011  124246 ( 1.31 sec)
in-34  132568  176896 ( 1.36 sec)
in-35  159431  190171 ( 1.47 sec)
in-36   98658  142370 ( 1.52 sec)
in-37   70082   84805 ( 1.60 sec)
in-38   56785   61164 ( 1.64 sec)
in-39   63391   52686 ( 1.71 sec)
in-40   63254   52113 ( 1.74 sec)
in-41   75529   56197 ( 1.82 sec)
in-42   86747   63240 ( 1.86 sec)
in-43   77346   62383 ( 1.93 sec)
in-44   64504   53321 ( 1.97 sec)
in-45   54376   46426 ( 2.04 sec)
in-46   49815   39911 ( 2.07 sec)
in-47   55758   45839 ( 2.14 sec)
in-48   67866   55157 ( 2.17 sec)
in-49   87530   83365 ( 2.26 sec)
in-50  120785  114329 ( 2.31 sec)
in-51  164183  169684 ( 2.44 sec)
in-52  241537  216175 ( 2.52 sec)
in-53  329044  248544 ( 2.70 sec)
in-54  340730  209229 ( 2.79 sec)
in-55  232325  116168 ( 2.92 sec)
in-56   96186   41033 ( 2.97 sec)
in-57   32730   12603 ( 3.03 sec)
in-58   10713    3810 ( 3.05 sec)
in-59    2895    1068 ( 3.09 sec)
in-60     883     332 ( 3.11 sec)
in-61     292      96 ( 3.14 sec)
in-62     183      74 ( 3.16 sec)
in-63     312     145 ( 3.20 sec)
in-64      57      27 ( 3.22 sec)
in-65      20       7 ( 3.26 sec)
in-66      14       3 ( 3.28 sec)
in-67       3       1 ( 3.31 sec)
in-68       5       1 ( 3.33 sec)
in-69       0       0 ( 3.37 sec)
won:    6269729 ( 41.1%)
lost:   3258597 ( 21.4%)
avg:       44.7 moves
The total statistics suggests this is a generally won when the Bishop is on one shade, and a generally drawn otherwise. Without the extra guards the number of lost positions is only 1.2%, indicative of a general draw.
Top
User avatar
hgm
Posts: 27787
Joined: Fri Mar 10, 2006 10:06 am
Location: Amsterdam
Full name: H G Muller

Re: Anti-Engine Puzzle

Post by hgm »

peter wrote: ↑Mon Mar 08, 2021 10:32 pmGood job of Sting's without doubt too.
Mating score isn't really necessary, if engine obviously "sees" it should work within 50 moves, otherwise 0.00- near eval would arise, and of course the line should show progress, which Sting one's clearly does too. Probably Sting would make the mate <50 in play out too, (question remains, if without black blunders) didn't try it neither, and still, if it's to be seen as a study, the 50 moves don't count at all anyhow.

Yet I think it's the engines' problem as for eval still mainly, "thinking" 50 moves draw to arise before mate.
That is nonsense. If an engine sees +3, it just means it is a minor ahead, but the position is still to complex to recognize it as a draw (which a minor ahead typically is). So it is probably not KBK. There is zero evidence that it could force a checkmate from that position.
Top

Return to “Computer Chess Club: General Topics”