TalkChess.com

Computer Chess Club
https://talkchess.com/

Test Position: Bd3!

https://talkchess.com/viewtopic.php?t=20608

Page 1 of 2

Test Position: Bd3!

Posted: Thu Apr 10, 2008 7:56 pm
by swami
[d]2r1nrk1/2qbbpp1/p3p2p/1p1pP1N1/3B1P2/6Q1/PPP1B1PP/3R1R1K w - - 0 18

Can your engine find Bd3?

Many engines prefer Nf3 with =+ but when Bd3 is played, it is += or even +-.

Re: Test Position: Bd3!

Posted: Thu Apr 10, 2008 8:54 pm
by Guetti
Hiarcs 11.2MP likes Bd3 :)
(53 seconds)

9 -22 54 243302 Nh3 Qxc2 Bd3 Qa4 Bb1 Bc5 b3 Qb4
10 -44 64 307376 Nh3 Qxc2 Bd3 Qa4 a3 a5
10 -43 65 321785 Nf3
10 -38 71 344770 Nf3 Qxc2 Bd3 Qa4 Bb1 b4 Rc1 Rc4
10 -37 91 500134 Qh4
10 -17 111 630979 Qh4 hxg5 fxg5
10 -17 132 761999 Bd3
10 -17 134 769774 Bd3 hxg5 fxg5 g6
11 -42 151 866848 Bd3
11 -42 167 997158 Bd3 hxg5 fxg5 g6 Qh4 Ng7 Qh6 Qd8 Be3 Nf5 Bxf5 exf5
11 -42 191 1225329 Nh3
11 -42 195 1239118 Nh3 Qxc2 Bd3 Qa4 Bb1 Qc4 Bd3 Qb4 Bb1
12 -21 251 1674816 Nh3 Qxc2 Bd3 Qa4 Bb1 Qc4 Bd3 Qc7 Bb1 Bb4 Bd3 a5 a3
13 -18 391 2839173 Nh3 Qxc2 Bd3 Qa4 Bb1 Qc4 Bd3 Qc6 Qg4
14 -18 715 5693377 Nh3 Qxc2 Bd3 Qa4 Bb1 Qc4 Bd3 Qc7 Bb1 g6
14 -17 1295 10767898 Qh3
14 +6 1757 14906567 Qh3
14 +6 1788 15169835 Qh3 hxg5 Bd3 g6 Qh6 Qd8
15 +30 3683 32393764 Qh3 Qd8 Bd3 Bxg5 fxg5 Qxg5 c3
15 +31 5314 46596008 Bd3
15 +85 7911 70357068 Bd3 hxg5 Qh3 g6 Qh6 Ng7 fxg5 Nh5 Rf3 Qd8 Be3 Qa5 Ra1 Qc7 Bd4
16 +70 10994 97786637 Bd3 hxg5 Qh3 g6 Qh6 Ng7 fxg5 Nh5 Rf3 Qd8 Be3 Qa5 a3 Qc7 Bd4 Qd8
17 +95 20988 187773714 Bd3
17 +152 31675 285970916 Bd3 f5 exf6 Bxf6 Be5 Bxe5 Bh7+ Kh8 fxe5 Nf6 Bg6 Kg8 Nf7 Rxf7 Bxf7+ Kxf7 c3 Bc6 Rde1 a5 exf6 gxf6
18 +175 60328 440008054 Bd3 f5 exf6 Bxf6 Be5 Nd6 Nh7 Bxe5 Nxf8 Bxb2 Nxd7 Qxd7 Qg6 Bc3 Rf3 Nf5 Bxf5
19 +167 101178 698809529 Bd3 f5 exf6 Bxf6 Be5 Bxe5 Bh7+ Kh8 fxe5 Nf6 Bg6 b4 Rf2 Ne4 Nxe4 dxe4 Rdf1 Rxf2 Rxf2 Qc4 Qf4 Rg8 Bxe4 Qxa2

Re: Test Position: Bd3!

Posted: Thu Apr 10, 2008 9:05 pm
by Ovyron
HIARCS Paderborn 2007 in 48 seconds:

10/25 0:00 -0.03 1.Nh3 Qxc2 2.Bd3 Qc7 3.Bb1 Bb4 4.Bd3 Bc6 5.Rc1 (161.773) 249
10/25 0:00 +0.02 1.Nh3 Qxc2 2.Bd3 Qc7 3.Bb1 Qc4 4.b3 Qc7 5.Qd3 (180.676) 250
11/25 0:01 +0.06 1.Nh3 Qxc2 2.Bd3 Qc7 3.Nf2 Qd8 4.Ng4 Bh4 5.Qf3 a5 6.b3 f5 (398.781) 255
12/26 0:02 +0.15 1.Nh3 Qxc2 2.Bd3 Qc7 3.Nf2 Qd8 4.Ng4 Kh8 5.f5 Bg5 6.Ne3 Kg8 7.b4 (746.033) 249
13/28 0:05 -0.04 1.Nh3 Qxc2 2.Bd3 Qa4 3.Bb1 Qb4 4.Qd3 g6 5.Nf2 Qc4 6.Ng4 Qxd3 7.Bxd3 h5 (1.442.988) 248
14/32 0:14 0.00 1.Nh3 Qxc2 2.Bd3 Qa4 3.Bb1 b4 4.Rfe1 Qb5 5.Nf2 Bc5 6.Bxc5 Rxc5 7.Ng4 f5 8.exf6 (3.368.195) 237
15/32 0:25 -0.14 1.Nh3 Qxc2 2.Bd3 Qa4 3.Bb1 b4 4.Rfe1 Rc7 5.Qd3 g6 6.Bb6 Rc6 7.Be3 Ng7 8.b3 Qa3 (5.860.546) 233
15/33 0:48 -0.13 1.Bd3 (9.542.517) 196
15/39 1:16 +0.25++ 1.Bd3 (14.529.983) 191
15/42 1:40 +0.63 1.Bd3 hxg5 2.Qh3 g6 3.Qh6 Ng7 4.fxg5 Nh5 5.Rf6 Be8 6.Rf3 Qd8 7.Be3 Qc7 (19.763.447) 196
best move: Be2-d3 time: 1:51.550 min n/s: 198.305 nodes: 22.079.496

HIARCS 12 Sharpen PV=ON on 4:23:

10/21 0:00 -0.30 1.Nf3 Qxc2 2.Bd3 Qa4 3.Ra1 b4 4.b3 Qa3 5.Rfd1 Bb5 (162.692) 255
10/23 0:00 -0.36 1.Nf3 Qxc2 2.Bd3 Qa4 3.Ra1 b4 4.f5 exf5 5.Nh4 Bxh4 6.Qxh4 Bb5 7.Bxf5 Bxf1 8.Bxc8 (206.112) 253
10/23 0:00 -0.35 1.Nh3 (224.571) 253
10/23 0:01 -0.35 1.Nh3 Qxc2 2.Bd3 Qa4 (252.993) 247
11/31 0:02 -0.15 1.Nh3 Qxc2 2.Bd3 Qc7 3.a3 (584.493) 228
12/31 0:05 -0.19 1.Nh3 Qxc2 2.Bd3 Qa4 3.Bb1 Qb4 4.a3 Qa4 5.Nf2 f5 6.Qg6 Rc4 7.Be3 Qb3 8.Bd4 (1.272.941) 228
13/41 0:15 -0.33 1.Nh3 Qxc2 2.Bd3 Qa4 3.a3 a5 4.Rfe1 f5 (3.435.476) 214
13/41 0:16 -0.32 1.Nf3 (3.538.775) 214
13/44 0:19 -0.32 1.Nf3 Qxc2 2.Bd3 Qa4 3.Nh4 b4 4.f5 Bxh4 (4.051.441) 211
14/44 0:29 -0.17 1.Nf3 Qxc2 2.Bd3 Qa4 3.Nh4 b4 4.Bb1 Qb5 5.f5 Bxh4 6.Qxh4 exf5 7.Qf2 Rc7 8.Bxf5 Bxf5 9.Qxf5 Qa5 10.e6 Re7 11.Rde1 Qxa2 (6.255.901) 209
15/44 0:45 -0.14 1.Nf3 Qxc2 2.Bd3 Qa4 3.Nh4 b4 4.b3 Qa3 5.f5 Bxh4 6.Qxh4 (9.598.315) 209
16/44 1:31 -0.11 1.Nf3 Qxc2 2.Bd3 Qa4 3.Nh4 b4 4.b3 Qa5 5.Bb1 Bxh4 6.Qxh4 Bb5 7.Rfe1 Qc7 8.Bb2 a5 9.a4 (19.161.476) 209
16/44 2:22 -0.10 1.Qh3 (29.253.039) 205
16/44 2:48 +0.10++ 1.Qh3 (34.341.150) 204
16/49 4:10 +0.46 1.Qh3 Qd8 2.Bd3 Bxg5 3.fxg5 Qxg5 4.Rf3 f5 5.Rdf1 Rc6 6.Rg3 Qd2 7.Be3 (50.931.743) 203
16/49 4:23 +0.46 1.Bd3 (53.621.053) 203
16/49 4:33 +0.53 1.Bd3 hxg5 2.Qh3 g6 3.f5 exf5 4.e6 f6 5.exd7 Qxd7 6.Rxf5 Ng7 7.Rxf6 Qxh3 8.Rxf8+ Bxf8 9.gxh3 Ne6 10.Bxg6 Nxd4 11.Rxd4 Rc5 12.c3 Bd6 13.Bf5 (55.644.878) 203
best move: Be2-d3 time: 4:47.413 min n/s: 204.296 nodes: 58.665.841

Seems like a problem of move ordering (Note that PB2007 has been faster than H12 for test moves lately.)

Re: Test Position: Bd3!

Posted: Thu Apr 10, 2008 10:00 pm
by Oscar L
2r1nrk1/2qbbpp1/p3p2p/1p1pP1N1/3B1P2/6Q1/PPP1B1PP/3R1R1K w - - 0 1

Analysis by Chess Tiger 2007.1 :

1.Nf3 Qxc2 2.Bd3
=/+ (-0.50) Depth: 1 00:00:00
1.Nf3 Qxc2 2.Bd3 Qc7 3.Rf2 Qa5 4.Ra1 Qd8 5.Kg1
= (-0.04) Depth: 3 00:00:00
1.Nf3 Qxc2 2.Bd3 Qc7 3.Rf2 Qa5 4.Ra1 Qd8 5.Kg1
= (-0.04) Depth: 9 00:00:00
1.Nf3 Qxc2 2.Bd3 Qc7 3.Rf2 Qa5 4.Ra1 Qd8 5.Kg1
= (-0.04) Depth: 9 00:00:00
1.Nf3 Qxc2 2.Bd3 Qc7 3.Rf2 Qa5 4.Ra1 Qd8 5.Kg1
= (-0.04) Depth: 9 00:00:00
1.Nf3 Qxc2 2.Bd3 Qc7 3.Rf2 Qa5 4.Ra1 Qd8 5.Kg1
= (-0.04) Depth: 9 00:00:00 15kN
1.Nf3 Qxc2 2.Bd3 Qc7 3.Rf2 Qa5 4.Ra1 Qd8 5.Kg1
= (-0.04) Depth: 9 00:00:00 15kN
1.Nf3 Qxc2 2.Bd3 Qc7 3.Rf2 Qa5 4.Ra1 Qd8 5.Kg1
= (-0.04) Depth: 9 00:00:00 15kN
1.Nf3 Qxc2 2.Bd3 Qc7 3.Rf2 Qa5 4.Ra1 Qd8 5.Kg1
= (-0.04) Depth: 9 00:00:00 27kN
1.Nf3 Qxc2 2.Bd3 Qc7 3.Rf2 Qa5 4.Ra1 Qd8 5.Kg1 Bc5 6.Rc2
= (-0.02) Depth: 10 00:00:00 50kN
1.Nf3 Qxc2 2.Bd3 Qc7 3.Rf2 Qa5 4.Ra1 Bc6 5.Rc2 Qc7 6.Rac1
= (-0.04) Depth: 11 00:00:00 106kN
1.Nf3 Qxc2 2.Bd3 Qc7 3.Rf2 Qa5 4.Ra1 Qd8 5.Kg1 Bb4 6.a3 Be7 7.Rc2 Rxc2 8.Bxc2
= (-0.04) Depth: 12 00:00:01 223kN
1.Nf3 Qxc2 2.Bd3 Qc7 3.Qg4 Qa5 4.Ra1 Bc5 5.Rfd1 Bxd4 6.Nxd4 Qb4 7.f5
= (-0.02) Depth: 13 00:00:01 475kN
1.Nf3 Qxc2 2.Bd3 Qa4 3.Ra1 Qb4 4.Rfc1 Rxc1+ 5.Rxc1 Qa5 6.a3 Qd8 7.Rc2 Nc7 8.Kg1
= (0.12) Depth: 14 00:00:02 1404kN
1.Nf3 Qxc2 2.Bd3 Qa4 3.Ra1 Qb4 4.Rfc1 Rxc1+ 5.Rxc1 Qa5 6.a3 Qd8 7.Kg1 Nc7 8.Bb6
= (0.12) Depth: 15 00:00:03 2082kN
1.Nf3 Qxc2 2.Bd3 Qa4 3.Ra1 Qb4 4.Rfc1 Rxc1+ 5.Rxc1 Qa4 6.a3 b4 7.f5 bxa3 8.fxe6 Bxe6 9.bxa3 Bxa3
= (0.16) Depth: 16 00:00:04 3828kN
1.Nf3 Qxc2 2.Bd3 Qa4 3.Ra1 Bc5 4.Bxc5 Rxc5 5.Qh4 Rc7 6.Qe7 Bc6 7.Bh7+ Kxh7 8.Qxf8 Qxf4 9.Rac1
= (0.00) Depth: 17 00:00:08 7391kN
1.Nf3 Qxc2 2.Bd3 Qa4 3.Ra1 Bc5 4.Bxc5 Rxc5 5.Qh4 Rc7 6.Qe7 Bc6 7.Bh7+ Kxh7 8.Qxf8 Qxf4 9.Rac1 Bb7 10.Rcd1
= (0.02) Depth: 18 00:00:14 13812kN
1.Bd3 hxg5 2.Qh3 g6 3.f5
+/- (0.90) Depth: 18 00:00:45 47563kN
1.Bd3 f5 2.exf6 Bxf6 3.Be5 Bxe5 4.fxe5 Nf6 5.Nf3 Ne4 6.Qg6 Rf5 7.Nd4 Nf2+ 8.Kg1 Nxd1 9.Nxf5
+- (1.56) Depth: 18 00:01:10 74337kN
1.Bd3 f5 2.exf6 Bxf6 3.Be5 Bxe5 4.fxe5 Nf6 5.Nf3 Ne4 6.Qg6 Rf5 7.Nd4 Nf2+ 8.Kg1 Nxd1 9.Nxf5
+- (1.56) Depth: 19 00:01:11 75207kN
1.Bd3 f5 2.exf6 Bxf6 3.Be5 Bxe5 4.Bh7+ Kh8 5.fxe5 Nf6 6.Bg6 Kg8 7.Rf3 hxg5 8.exf6 Qxg3 9.f7+ Kh8 10.Rxg3 Rc4
+- (1.47) Depth: 20 00:01:35 102mN
1.Bd3 f5 2.exf6 Bxf6 3.Be5 Bxe5 4.Bh7+ Kh8 5.fxe5 Nf6 6.Bg6 Kg8 7.Rf3 hxg5 8.exf6 Qxg3 9.f7+ Kh8 10.Rxg3 g4 11.Rxg4 Rc4
+- (1.41) Depth: 21 00:02:52 191mN
1.Bd3 f5 2.exf6 Bxf6 3.Be5 Bxe5 4.Bh7+ Kh8 5.fxe5 Nf6 6.Bg6 Kg8 7.Rf3 hxg5 8.exf6 Qxg3 9.f7+ Kh8 10.Rxg3 g4 11.Rd4 e5
+- (1.98) Depth: 22 00:06:37 451mN

Re: Test Position: Bd3!

Posted: Fri Apr 11, 2008 12:30 am
by meschle
This is a great test position :D Which game is it from? - looks like a kasparov move to me

Out of all the free chess engines i tested again Spike 1.2 Turin performed the best.
In 5min 43 sec

I note with some of the engines the line Qg3h3 h6xg5 Be2d3 g7g6....... is chosen which in many ways is similar

FEN: 2r1nrk1/2qbbpp1/p3p2p/1p1pP1N1/3B1P2/6Q1/PPP1B1PP/3R1R1K w - - 0 18

Spike1.2:
0 00:00 0 0 +1.49
1 00:00 348 0 -0.90 Ng5h3 Qc7xc2
1 00:00 491 0 -0.90 Ng5h3 Qc7xc2
2 00:00 529 0 -0.90 Ng5h3 Qc7xc2
2 00:00 728 0 -0.90 Ng5h3 Qc7xc2
3 00:00 902 0 -0.38 Ng5h3 Qc7xc2 Be2d3
3 00:00 1.094 0 -0.16 Ng5f3 Qc7xc2 Be2d3
3 00:00 3.335 0 -0.16 Ng5f3 Qc7xc2 Be2d3
4 00:00 4.398 0 -0.06 Ng5f3 Qc7xc2 Be2d3 Qc2a4
4 00:00 8.095 261.129 -0.06 Ng5f3 Qc7xc2 Be2d3 Qc2a4
5 00:00 9.793 315.903 -0.19 Ng5f3 Qc7xc2 Be2d3 Qc2c6 a2a3
5 00:00 17.194 373.782 -0.19 Ng5f3 Qc7xc2 Be2d3 Qc2c6 a2a3
6 00:00 20.819 335.790 -0.12 Ng5f3 Qc7xc2 Be2d3 Qc2c6 a2a3 g7g6
6 00:00 32.830 420.897 -0.12 Ng5f3 Qc7xc2 Be2d3 Qc2c6 a2a3 g7g6
7 00:00 43.377 466.419 -0.08 Ng5f3 Qc7xc2 Be2d3 Qc2c7 Bd4c3 g7g6 Rd1c1
7 00:00 57.341 526.064 -0.08 Ng5f3 Qc7xc2 Be2d3 Qc2c7 Bd4c3 g7g6 Rd1c1
8 00:00 74.602 478.217 -0.09 Ng5f3 Qc7xc2 Be2d3 Qc2c7 Bd4e3 Qc7a5 a2a3 Be7c5 Be3xc5 Rc8xc5
8 00:00 114.415 563.620 -0.09 Ng5f3 Qc7xc2 Be2d3 Qc2c7 Bd4e3 Qc7a5 a2a3 Be7c5 Be3xc5 Rc8xc5
9 00:00 154.262 582.120 -0.33 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Rd1a1 g7g6 Qg3h3 h6h5 Qh3g3
9 00:00 252.379 673.010 -0.33 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Rd1a1 g7g6 Qg3h3 h6h5 Qh3g3
10 00:00 309.944 662.273 -0.17 Ng5f3 Qc7xc2 Be2d3 Qc2a4 a2a3 b5b4 a3xb4 Bd7b5 Bd3xb5 Qa4xb5 Rd1c1 Be7xb4
10 00:00 461.914 704.137 -0.17 Ng5f3 Qc7xc2 Be2d3 Qc2a4 a2a3 b5b4 a3xb4 Bd7b5 Bd3xb5 Qa4xb5 Rd1c1 Be7xb4
11 00:01 657.135 701.318 -0.21 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Rd1a1 Be7c5 Bd4xc5 Rc8xc5 Qg3h4 f7f5 Qh4e7 Rc5c7
11 00:01 905.090 733.460 -0.21 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Rd1a1 Be7c5 Bd4xc5 Rc8xc5 Qg3h4 f7f5 Qh4e7 Rc5c7
12 00:01 1.242.869 716.764 -0.22 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Bd3b1 Qa4c4 b2b3 Qc4c7 Bd4e3 Qc7c3 Be3d4 Qc3a5
12 00:02 1.776.560 743.330 -0.22 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Bd3b1 Qa4c4 b2b3 Qc4c7 Bd4e3 Qc7c3 Be3d4 Qc3a5
13 00:03 2.252.693 735.693 -0.20 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Bd3b1 Qa4c4 a2a3 b5b4 Bb1d3 Qc4c6 a3xb4 Be7xb4 b2b3 f7f5
13 00:04 3.176.140 752.996 -0.20 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Bd3b1 Qa4c4 a2a3 b5b4 Bb1d3 Qc4c6 a3xb4 Be7xb4 b2b3 f7f5
14 00:06 4.539.785 737.456 -0.19 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Bd3b1 Ne8c7 Rd1c1 Nc7a8 f4f5 Rc8xc1 Rf1xc1 Be7g5 f5f6 g7g6 Nf3xg5 Qa4xd4
14 00:09 7.269.536 770.322 -0.19 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Bd3b1 Ne8c7 Rd1c1 Nc7a8 f4f5 Rc8xc1 Rf1xc1 Be7g5 f5f6 g7g6 Nf3xg5 Qa4xd4
15 00:13 10.011.100 752.940 -0.20 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Bd3b1 b5b4 Rd1c1 Ne8c7 Nf3d2 Nc7b5 Bd4b6 Rc8xc1 Rf1xc1 Rf8b8 Bb6f2 Rb8c8 Rc1xc8+ Bd7xc8
15 00:21 16.392.706 764.692 -0.20 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Bd3b1 b5b4 Rd1c1 Ne8c7 Nf3d2 Nc7b5 Bd4b6 Rc8xc1 Rf1xc1 Rf8b8 Bb6f2 Rb8c8 Rc1xc8+ Bd7xc8
16 00:26 20.309.911 758.823 -0.24 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Bd3b1 b5b4 Rd1c1 Ne8c7 Nf3d2 Nc7b5 Bd4b6 Rc8xc1 Rf1xc1 Rf8b8 Bb6f2 Kg8f8 Kh1g1
16 00:48 37.545.778 782.464 -0.24 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Bd3b1 b5b4 Rd1c1 Ne8c7 Nf3d2 Nc7b5 Bd4b6 Rc8xc1 Rf1xc1 Rf8b8 Bb6f2 Kg8f8 Kh1g1
17 01:03 49.027.162 774.949 -0.32 Ng5f3 Qc7xc2 Be2d3 Qc2a4 Bd3b1 b5b4 Rd1c1 Ne8c7 Nf3d2 Bd7b5 Rf1e1 Nc7a8 Nd2f3 Rf8d8 Re1d1 Rc8xc1 Rd1xc1 Bb5c4
17+ 02:04 95.684.264 767.008 +0.06 Qg3h3 h6xg5 Be2d3 g7g6 f4f5 g5g4 Qh3h6 g6xf5 Bd3xf5 e6xf5 e5e6 f7f6 Rf1xf5
17+ 02:04 95.684.264 767.008 +0.06 Qg3h3 h6xg5 Be2d3 g7g6 f4f5 g5g4 Qh3h6 g6xf5 Bd3xf5 e6xf5 e5e6 f7f6 Rf1xf5
17 04:47 218.183.759 758.570 +0.69 Qg3h3 Qc7d8 Be2d3 Be7xg5 f4xg5 Qd8xg5 c2c3 f7f5 Bd4e3 f5f4 Be3d4 Rf8f7 Rd1e1 g7g6 Re1e2 Ne8g7 Re2f2 Bd7c6
17 05:46 261.671.855 755.255 +0.93 Be2d3 h6xg5 Qg3h3 g7g6 f4f5 e6xf5 e5e6 f7f6 Bd4b6 Qc7xb6 e6xd7 Rc8d8 d7xe8Q Rf8xe8 Qh3h6 Kg8f7 Qh6h7+ Kf7e6 Qh7xg6 Ke6d7 Bd3xf5+ Kd7c7
17 05:58 271.029.365 756.670 +0.93 Be2d3 h6xg5 Qg3h3 g7g6 f4f5 e6xf5 e5e6 f7f6 Bd4b6 Qc7xb6 e6xd7 Rc8d8 d7xe8Q Rf8xe8 Qh3h6 Kg8f7 Qh6h7+ Kf7e6 Qh7xg6 Ke6d7 Bd3xf5+ Kd7c7

Re: Test Position: Bd3!

Posted: Fri Apr 11, 2008 5:33 am
by swami
meschle wrote:This is a great test position :D Which game is it from? - looks like a kasparov move to me
Glad you liked it :-), I think the position is taken from the game Efim Geller vs Andronico Yap, Moscow 1986.

Re: Test Position: Bd3!

Posted: Fri Apr 11, 2008 10:51 am
by Ross Boyd
Ah yes, TRACE 2 solves this, no problem...
It just takes 19 minutes, that's all..

Old TRACE 1.37a doesn't see it even after 90 minutes....

Code: Select all

FEN: 2r1nrk1/2qbbpp1/p3p2p/1p1pP1N1/3B1P2/6Q1/PPP1B1PP/3R1R1K w - - 0 18 

TRACE 2.00:
   1	00:00.156	         462	0	-1.19	Nf3
   2	00:00.156	         660	0	-1.19	Nf3 Qxc2
   3	00:00.156	       1.102	0	-1.22	Nf3 Qxc2 Bd3
   4	00:00.156	       4.963	0	-0.72	Nf3 Qxc2 Bd3 Qa4
   5	00:00.156	      16.508	15.000	-1.01	Nf3 Qxc2 Bd3 Qa4 a3
  6/6	00:00.172	      42.854	2.500.000	-0.74	Nf3 Qxc2 Bd3 Qa4 a3 Qb3
  7/6	00:00.203	      76.748	1.595.744	-0.87	Nf3 Qxc2 Rd2 Qa4 b3 Qa5
  8/7	00:00.250	     147.506	1.542.553	-0.88	Nf3 Qxc2 Rd2 Qc7 Bd3 Qa5 b3
  9/9	00:00.344	     315.520	1.675.531	-0.85	Nf3 Qxc2 Bd3 Qa4 a3 Bc5 Qf2 Bxd4
 10/20	00:00.563	     647.755	1.588.669	-0.72	Nf3 Qxc2 Bd3 Qa4 a3 Qa5 Rc1 Bc6 Rfd1
 11/27	00:01.203	   1.608.165	1.532.951	-0.69	Nf3 Qxc2 Bd3 Qc7 Qe1 Kh8 Rc1 Bc6 b4
 12/34	00:02.531	   3.637.565	1.530.526	-0.65	Nf3 Qxc2 Bd3 Qa4 a3 Rc6 Rc1 Nc7 Rfd1 Rc8
 13/35	00:04.969	   7.352.035	1.527.114	-0.83	Nf3 Qxc2 Bd3 Qa4 a3 b4 Rc1 bxa3 Rxc8 Bxc8 bxa3 Qxa3
 13/23	00:08.781	  13.198.033	1.529.855	-0.80	Nxf7 Rxf7 Qg6 Bc5 Bxc5 Qxc5 Bd3 Qd4 f5 Qxe5 fxe6 Rxf1+ Rxf1
 14/31	00:23.594	  35.521.456	1.515.487	-0.55	Nxf7 Kxf7 Bd3 Bc5 Bxc5 Qxc5 Qg6+ Ke7 f5 exf5 Qxa6 Rf7 a4 Kf8 axb5
 15/37	00:47.828	  72.559.533	1.521.962	-0.60	Nxf7 Kxf7 Bd3 Bc5 Bc3 b4 Be1 Bb5 Qg6+ Ke7 Bh4+ Kd7 Bxb5+ axb5 Rf3 Ra8
 16/40	01:46.266	 162.271.161	1.529.262	-0.42	Nxf7 Kxf7 Bd3 Bc5 Bc3 Qb6 Qg6+ Ke7 f5 Kd8 f6 gxf6 exf6 Bd4 f7 Ng7 Qxh6
 17/43	03:59.500	 367.836.253	1.536.846	-0.47	Nxf7 Kxf7 Bd3 Bc5 Bc3 Qb6 Qg6+ Ke7 f5 exf5 e6 Bxe6 Rfe1 Kd7 Be5 Bf2 Re2 Kd8
 17/54	06:48.109	 626.752.538	1.536.328	-0.09	Qh3 Qxc2 Bd3 Qa4 Bh7+ Kh8 Bb1 Nc7 Nh7 Rfd8 Qh5 Kg8 b3 Qb4 f5 exf5 Bxf5
 18/42	09:06.578	 839.804.685	1.536.907	-0.05	Qh3 Qxc2 Bd3 Qa4 b3 Qb4 Bh7+ Kh8 Bb1 Nc7 Qd3 g6 Nxf7+ Rxf7 Qxg6 Rcf8 Qxh6+ Kg8 Rf3 Rg7 Bg6
 18/54	19:22.547	1.779.639.098	1.531.012	+0.65	Bd3 f5 exf6 Bxf6 Be5 Nd6 Bxf6 Rxf6 Nh7 Rf7 Qg6 Nc4 Bxc4 Qxc4
 19/56	26:41.141	2.454.916,196	1.533.374	+1.06	Bd3 g6 Nxe6 Bxe6 f5 Bxf5 Bxf5 Rb8 Bh3 Bc5 Bxc5 Qxc5 Bf5 Nc7
 20/59	41:27.250	3.834.372,192	1.541.706	+1.13	Bd3 f5 exf6 Bxf6 Be5 Bxe5 fxe5 Nf6 Rxf6 Rxf6 exf6 Qxg3 f7+ Kf8 Nh7+ Kxf7 hxg3 e5 Be4 Be6 Rf1+ Ke7

Re: Test Position: Bd3!

Posted: Fri Apr 11, 2008 11:56 am
by Martin Thoresen
Ross,

Any new Trace with learning and own book soon? :D

Re: Test Position: Bd3!

Posted: Fri Apr 11, 2008 1:47 pm
by swami
Ross Boyd wrote:Ah yes, TRACE 2 solves this, no problem...
It just takes 19 minutes, that's all..

Old TRACE 1.37a doesn't see it even after 90 minutes....
I see.Great to know newer version is doing better. Thanks for letting the engine spend time on this ,atleast :wink:

Re: Test Position: Bd3!

Posted: Fri Apr 11, 2008 1:49 pm
by swami
Martin T wrote:Ross,

Any new Trace with learning and own book soon? :D
http://www.talkchess.com/forum/viewtopic.php?t=20590
All times are UTC+02:00
Page 1 of 2

Powered by phpBB® Forum Software © phpBB Limited