Re: Kornrade Test
Posted: Fri Sep 14, 2018 2:44 pm
Constrictor with refined construction:
[d]3k4/p1pq3p/1p5R/1N2P3/7P/8/PPP1N1K1/8 w - - 0 1
[d]3k4/p1pq3p/1p5R/1N2P3/7P/8/PPP1N1K1/8 w - - 0 1
Well, I wouldn't really call it a refinement, as a matter of fact it's about the same, just N on b5 instead of c2 and take-back of three pawn- moves, but yes, it works too
With McCain (nullmove switched off too) Backward works some faster and better again:peter wrote: ↑Fri Sep 14, 2018 9:56 pm Komodo with switched off nullmove after some Forward- Backward:
3k4/p1pq3p/1p5R/1N2P3/7P/8/PPP1N1K1/8 w - - 0 1
Analysis by Komodo 12.1.1 64-bit:
1.Nbd4 Qg7+ 2.Kh3 Qxh6 3.Nf4 c6 4.Nde6+ Kd7 5.Kg3 c5 6.Kg4 Kc6 7.h5 Kb5 8.Kf3 a5 9.Ke4 a4 10.a3 Kc4 11.Nc7 Qg5 12.e6 Qg1 13.Nfd5 Qh1+ 14.Ke5 Qh2+ 15.Kf6 Qh4+ 16.Kf7 Qxh5+ 17.Ke7 Qe5 18.Nxb6+ Kd4 19.Kd8 Qf6+ 20.e7 Qxb6 21.e8Q Qb8+ 22.Kd7 Qxe8+ 23.Nxe8 c4 24.Nd6 h5 25.Nf5+ Kc5 26.c3 Kd5 27.Nh4 Ke5 28.Ke7 Kf4 29.Kf6 Ke4 30.Ke6 Kf4 31.Kd5 Kg4
+- (2.07) Depth: 27 00:03:35 4761MN
Kornrade wrote: ↑Wed Sep 12, 2018 12:27 pm Hello all,
I have finally succeeded in making an up-to-date list of my studies on the personal site Chichitza
For all my compositions, I tried to add an element of difficulty for the engines (be it fortress, zugzwang, long-term strategy that goes beyond the horizon, etc., or a combination of those).
So, here is my Kornrade Test (for humans and machines):Further information (e.g. co-authors, links) and solutions to the studies are available on Chichitza.Code: Select all
01 Constrictor +- [FEN "3k4/2pq3p/pp5R/4P3/P6P/2PN4/1PN3K1/8 w - - 0 1"] 02 Mirror +- [FEN "6Nk/pp2Np1p/2p2Pp1/2R2bP1/7K/P7/1q1n1Q2/5n2 w - - 0 1"] 03 Walk +- [FEN "5B1q/3N3p/p3p2p/7k/B7/5PP1/K6P/8 w - - 0 1"] 04 Detour +- [FEN "7q/b1p5/1p1Npkb1/pPP2ppP/P1P5/3B2P1/5P1R/K3R3 w - - 0 1"] 05 Stubbornness == [FEN "8/b4kp1/2p1p3/5pB1/p1PP4/1p6/3K1P2/3N4 w - - 0 1"] 06 Guard Change +- [FEN "2k4N/Q1np4/2p2Bpp/1p1P4/pPP1p2P/P7/7q/1K6 w - - 0 1"] 08 Slowness +- [FEN "q7/b1p5/kp1p4/p2PN3/PPP5/1K6/8/5B2 w - - 0 1"] 09 Standstill == [FEN "1N4K1/1pp1p3/7k/2r3pP/p2pp1P1/P6N/8/2B5 w - - 0 1"] 10 Shelter == [FEN "4B3/k1K1pp2/p3bq2/2p1p3/1p2P1P1/4P2Q/nR6/8 w - - 0 1"] 11 Chase +- [FEN "4N2k/4PB1p/7P/B1p5/2P5/3q2Pp/1P3P1K/2r5 w - - 0 1"] 12 Desperation == [FEN "2b5/1pr4p/3bp1pk/1p6/1PpN2PP/K1P1n3/P3N1R1/3R4 w - - 0 1"] 13 Shield +- [FEN "8/4Pr1N/8/6PN/8/3K1ppp/4prkb/4Bbnn w - - 0 1"] 14 Fork-field +- [FEN "3B2r1/n3Pp2/P7/5k1p/q3NP2/7K/5P2/4NB2 w - - 0 1"] 15 Harassment +- [FEN "8/q1p1N1p1/3p1p1p/pk5P/1p2BB2/8/PK3P2/8 w - - 0 1"] 16 Smothering +- [FEN "6kq/2p4p/6P1/5nN1/K7/2P5/7B/3B4 w - - 0 1"] * Smothering II +- [FEN "5k2/2p4p/6P1/1p3n2/3q4/PB4BN/KP5P/8 w - - 0 1"] 17 Fishing Rod == [FEN "8/1B3b1p/7P/p2p4/P2pp1kp/Q7/1N1Pq2P/7K w - - 0 1"] 18 Stronghold == [FEN "6k1/1qr1p2p/ppN5/3p1N2/6p1/1P1P2Pp/PP2PP1P/2RK4 w - - 0 1"] 19 Evil Eye == [FEN "8/pr1Pq3/br1kP3/1R2RQ2/5p2/1nPK4/5P2/8 w - - 0 1"] 20 Roundabout +- [FEN "4b3/5p2/2p4p/P1p1PN2/2pn2P1/P2k4/Pr1npKN1/B7 w - - 0 1"]
Study 07 is intentionally missing, it has been shown to be cooked and is currently (still) under repair...
Study 16(II) is the submitted (and not accepted) version of study 16, which I consider more challenging for the engines than the published version.
I know that some of the positions have been the subject of discussions in this forum and I am grateful for your opinions and insights on those threads. Therefore, my questions here are a little more general:
How would you rate the difficulty of the studies for engines, considering your favourite engine and available hardware?
0 Engines solve it immediately
1 Engines are slightly confused
2 Engines are very confused
3 Engines are utterly confused
If you don't mind, would like to update the difficulty iconograms on the site according to these evaluations.
Also, from a human perspective, how entertaining would you consider the studies?
Thank you and have fun !
Here are the results for Stockfish_180910 on an i7-6*4GHz.Kornrade wrote: ↑Wed Sep 12, 2018 12:27 pm
So, here is my Kornrade Test (for humans and machines):Code: Select all
01 Constrictor +- [FEN "3k4/2pq3p/pp5R/4P3/P6P/2PN4/1PN3K1/8 w - - 0 1"] 02 Mirror +- [FEN "6Nk/pp2Np1p/2p2Pp1/2R2bP1/7K/P7/1q1n1Q2/5n2 w - - 0 1"] 03 Walk +- [FEN "5B1q/3N3p/p3p2p/7k/B7/5PP1/K6P/8 w - - 0 1"] 04 Detour +- [FEN "7q/b1p5/1p1Npkb1/pPP2ppP/P1P5/3B2P1/5P1R/K3R3 w - - 0 1"] 05 Stubbornness == [FEN "8/b4kp1/2p1p3/5pB1/p1PP4/1p6/3K1P2/3N4 w - - 0 1"] 06 Guard Change +- [FEN "2k4N/Q1np4/2p2Bpp/1p1P4/pPP1p2P/P7/7q/1K6 w - - 0 1"] 08 Slowness +- [FEN "q7/b1p5/kp1p4/p2PN3/PPP5/1K6/8/5B2 w - - 0 1"] 09 Standstill == [FEN "1N4K1/1pp1p3/7k/2r3pP/p2pp1P1/P6N/8/2B5 w - - 0 1"] 10 Shelter == [FEN "4B3/k1K1pp2/p3bq2/2p1p3/1p2P1P1/4P2Q/nR6/8 w - - 0 1"] 11 Chase +- [FEN "4N2k/4PB1p/7P/B1p5/2P5/3q2Pp/1P3P1K/2r5 w - - 0 1"] 12 Desperation == [FEN "2b5/1pr4p/3bp1pk/1p6/1PpN2PP/K1P1n3/P3N1R1/3R4 w - - 0 1"] 13 Shield +- [FEN "8/4Pr1N/8/6PN/8/3K1ppp/4prkb/4Bbnn w - - 0 1"] 14 Fork-field +- [FEN "3B2r1/n3Pp2/P7/5k1p/q3NP2/7K/5P2/4NB2 w - - 0 1"] 15 Harassment +- [FEN "8/q1p1N1p1/3p1p1p/pk5P/1p2BB2/8/PK3P2/8 w - - 0 1"] 16 Smothering +- [FEN "6kq/2p4p/6P1/5nN1/K7/2P5/7B/3B4 w - - 0 1"] * Smothering II +- [FEN "5k2/2p4p/6P1/1p3n2/3q4/PB4BN/KP5P/8 w - - 0 1"] 17 Fishing Rod == [FEN "8/1B3b1p/7P/p2p4/P2pp1kp/Q7/1N1Pq2P/7K w - - 0 1"] 18 Stronghold == [FEN "6k1/1qr1p2p/ppN5/3p1N2/6p1/1P1P2Pp/PP2PP1P/2RK4 w - - 0 1"] 19 Evil Eye == [FEN "8/pr1Pq3/br1kP3/1R2RQ2/5p2/1nPK4/5P2/8 w - - 0 1"] 20 Roundabout +- [FEN "4b3/5p2/2p4p/P1p1PN2/2pn2P1/P2k4/Pr1npKN1/B7 w - - 0 1"]
Code: Select all
Positions Solution 1st run 2nd run 3rd run
3k4/2pq3p/pp5R/4P3/P6P/2PN4/1PN3K1/8 w - - 0 1 1. Nd4! 1) Kg2-f3 Kg2-f3 Kg2-f3
6Nk/pp2Np1p/2p2Pp1/2R2bP1/7K/P7/1q1n1Q2/5n2 w - - 0 1 1. Rxf5 2) Rc5xf5 Rc5xf5 Rc5xf5 FOUND 1
5B1q/3N3p/p3p2p/7k/B7/5PP1/K6P/8 w - - 0 1 1. Ne5 3) Nd7-e5 Nd7-e5 Nd7-e5 FOUND 2
7q/b1p5/1p1Npkb1/pPP2ppP/P1P5/3B2P1/5P1R/K3R3 w - - 0 1 1. hxg6! 4) Nd6-b7 Nd6-b7 Nd6-b7
8/b4kp1/2p1p3/5pB1/p1PP4/1p6/3K1P2/3N4 w - - 0 1 1. Kc3! 5) Kd2-c3 Kd2-c3 Kd2-c3 FOUND 3
2k4N/Q1np4/2p2Bpp/1p1P4/pPP1p2P/P7/7q/1K6 w - - 0 1 1. Nf7 6) d5xc6 Nh8-f7 d5xc6 (ok)
q7/b1p5/kp1p4/p2PN3/PPP5/1K6/8/5B2 w - - 0 1 1. c5+ 7) c4-c5 c4-c5 c4-c5 FOUND 4
1N4K1/1pp1p3/7k/2r3pP/p2pp1P1/P6N/8/2B5 w - - 0 1 1. Nc6 8) Nb8-c6 Bc1-d2 Bc1-d2
4B3/k1K1pp2/p3bq2/2p1p3/1p2P1P1/4P2Q/nR6/8 w - - 0 1 1. g5 9) g4-g5 Rb2-d2 Rb2-d2 (ok)
4N2k/4PB1p/7P/B1p5/2P5/3q2Pp/1P3P1K/2r5 w - - 0 1 1. Bc3+ 10) Ba5-c3 Ba5-c3 Ba5-c3 FOUND 5
2b5/1pr4p/3bp1pk/1p6/1PpN2PP/K1P1n3/P3N1R1/3R4 w - - 0 1 1. Nxb5 11) Rg2-g1 Nd4xb5 Nd4xb5 FOUND 6
8/4Pr1N/8/6PN/8/3K1ppp/4prkb/4Bbnn w - - 0 1 1. Nf8 12) e7-e8Q e7-e8Q e7-e8Q
3B2r1/n3Pp2/P7/5k1p/q3NP2/7K/5P2/4NB2 w - - 0 1 1. Nf6 13) Ne4-f6 Ne4-f6 Ne4-f6 FOUND 7
8/q1p1N1p1/3p1p1p/pk5P/1p2BB2/8/PK3P2/8 w - - 0 1 1. Be3 14) Be4-d3 Be4-d3 Be4-d3
6kq/2p4p/6P1/5nN1/K7/2P5/7B/3B4 w - - 0 1 1. Bb3+ 15) g6xh7 g6xh7 g6xh7
5k2/2p4p/6P1/1p3n2/3q4/PB4BN/KP5P/8 w - - 0 1 1. Ng5 16) Nh3-g5 Nh3-g5 g6xh7 (ok)
8/1B3b1p/7P/p2p4/P2pp1kp/Q7/1N1Pq2P/7K w - - 0 1 1. Qh3 17) Bb7-c8 Bb7-c8 Qa3-h3 (ok)
6k1/1qr1p2p/ppN5/3p1N2/6p1/1P1P2Pp/PP2PP1P/2RK4 w - - 0 1 1. Ncxe7+ 18) Nf5-d4 Kd1-d2 Rc1-c3
8/pr1Pq3/br1kP3/1R2RQ2/5p2/1nPK4/5P2/8 w - - 0 1 1. Qxf4 19) Qf5xf4 Qf5xf4 Qf5xf4 FOUND 8
4b3/5p2/2p4p/P1p1PN2/2pn2P1/P2k4/Pr1npKN1/B7 w - - 0 1 1. Ne1+ 20) Ng2-e1 Ng2-e1 Ng2-e1 FOUND 9
Code: Select all
1) Nc2-d4 Kg2-f3 Kg2-f3 Kg2-f3
2) Rc5xf5 Rc5xf5 * 0 Sec Rc5xf5 * 0 Sec Rc5xf5 * 0 Sec
3) Nd7-e5 Nd7-e5 * 0 Sec Nd7-e5 * 6 Sec Nd7-e5 * 1 Sec
4) h5xg6 Nd6-b7 Nd6-b7 Nd6-b7
5) Kd2-c3 c4-c5 c4-c5 c4-c5
6) Nh8-f7 d5xc6 d5xc6 d5xc6
7) c4-c5 b4-b5 b4-b5 Ne5-d3
8) Nb8-c6 Nb8-d7 Nb8-d7 Nb8-d7
9) g4-g5 g4-g5 * 0 Sec g4-g5 * 0 Sec g4-g5 * 0 Sec
10) Ba5-c3 Ba5-c3 * 0 Sec Ba5-c3 * 0 Sec Ba5-c3 * 0 Sec
11) Nd4xb5 Rg2-g1 Rg2-g1 Rg2-g1
12) Nh7-f8 e7-e8Q e7-e8Q e7-e8Q
13) Ne4-f6 Ne4-f6 * 1 Sec Ne4-f6 * 15 Sec Ne4-f6 * 2 Sec
14) Bf4-e3 Be4-d3 Be4-d3 Be4-d3
15) Bd1-b3 g6xh7 g6xh7 g6xh7
16) Nh3-g5 Nh3-g5 * 0 Sec Nh3-g5 * 0 Sec Nh3-g5 * 0 Sec
17) Qa3-h3 Bb7-c8 Bb7-c8 Bb7-c8
18) Nc6xe7 Rc1-c3 Rc1-c3 Nf5-d4
19) Qf5xf4 Qf5xf4 * 0 Sec Qf5xf4 * 0 Sec Qf5xf4 * 0 Sec
20) Ng2-e1 Ng2-e1 * 0 Sec Ng2-e1 * 0 Sec Ng2-e1 * 0 Sec