Easy for humans, very hard for engines

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

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chessica
Posts: 710
Joined: Thu Aug 11, 2022 11:30 pm
Full name: Esmeralda Pinto

Re: Easy for humans, very hard for engines

Post by chessica »

[d]7k/8/pp2p1p1/bN1p2pb/1p4p1/1P6/6P1/4K2R w - - 0 1

Crystallite 1.1-base:

31/62 02:07,534 460.534k 3.611k -0,13 Ke1-d2 g4-g3 Sb5-c7 b6-b5 Sc7xe6 La5-b6 Th1-c1 Lh5-g4 Tc1-c6 Lb6-f2 Tc6xa6 Kh8-h7 Se6xg5+ Kh7-h6 Sg5-f7+ Kh6-h5 Ta6-d6 d5-d4 Td6-d5+ Kh5-h4 Sf7-e5 Lf2-e3+ Kd2-e1 Lg4-f5 Se5-f3+ Kh4-g4 Sf3xd4 Lf5-e4 Td5-d6 Le3-f4 Td6-e6 Le4xg2 Te6xg6+ Kg4-h4 Tg6-f6 Lf4-c7 Tf6-f7 Lc7-e5 Tf7-f5 Le5-d6 Tf5-f6 Ld6-c5 Tf6-f5 Lc5-e7 Tf5-e5 Le7-d8 Te5-e8 Ld8-f6 Te8-f8 Lf6-g5 Tf8-b8 Kh4-g4 Tb8xb5 Lg5-e3 Tb5xb4
31/12 02:07,534 460.534k 3.611k 0,00 Sb5-d4 e6-e5 Sd4-e6 g4-g3 Th1-f1 e5-e4 Tf1-f8+ Kh8-h7 Tf8-f7+ Kh7-h8
32/12 02:07,534 460.534k 3.611k 0,00 Sb5-c7 g4-g3 Sc7xe6 Kh8-h7 Th1-f1 Lh5-g4 Tf1-f7+ Kh7-h8 Tf7-f8+ Kh8-h7
32/46 02:07,534 460.534k 3.611k +M18 g2-g3 Kh8-g8 Th1-f1 Kg8-h8 Ke1-d2 Kh8-g7 Kd2-d3 e6-e5 Kd3-e3 a6xb5 Ke3-d3 Kg7-h7 Tf1-e1 Kh7-g7 Te1xe5 Kg7-f6 Kd3-d4 Kf6-g7 Kd4xd5 Kg7-f6 Kd5-d6 Kf6-f7 Te5-e1 Kf7-f8 Te1-e7 Kf8-g8 Kd6-e5 Kg8-f8 Ke5-f6 Kf8-g8 Te7-e8+ Kg8-h7 Te8-d8 Kh7-h6 Td8-h8+
Chessqueen
Posts: 5685
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

Re: Easy for humans, very hard for engines

Post by Chessqueen »

Dann Corbit wrote: Fri May 24, 2024 9:58 pm [d]7k/8/pp2p1p1/bN1p2pb/1p4p1/1P6/6P1/4K2R w - - bm g3; id "ACT4.051";
It is clear that by pushing the pawn to g3, both black bishops are in a bullet proof box.
Pushing the rook to f1 will keep the king in a 4 cell prison.
Anywhere on rank 7 would be as good, keeping the king on his baseline.
Meanwhile, the white king can clear the center pawns (possibly with rook help) and then execute a king/rook mate algorithm.
Of course, the optimal path will probably be much better than that simple plan.
I see that chess engines want to save the knight from the pawn, but that is instantly counter productive because it allows the bishop to escape.
I wonder why, in a case like this that is so easy for humans, chess engines don't see the prison cells.
FEN: 7k/8/pp2p1p1/bN1p2pb/1p4p1/1P6/6P1/4K2R w - - 0 1

Huntsman:
classical evaluation enabled
1/1 00:00 104 104k +0.31 Rh1-f1 a6xb5
2/2 00:00 290 290k +0.31 Rh1-f1 a6xb5
3/3 00:00 684 342k +0.20 Rh1-f1 a6xb5 Rf1-f8+ Kh8-g7
4/4 00:00 2k 1,173k +0.31 Nb5-d4 e6-e5 Rh1-f1
5/5 00:00 4k 2,154k +0.45 Rh1-f1 Kh8-g7 Nb5-d6 Kg7-g8 Nd6-f7
6/6 00:00 8k 2,573k +0.23 Rh1-f1 Kh8-g7 Nb5-d6 Kg7-h6 Rf1-f7 g4-g3
7/10 00:00 19k 3,777k +0.29 Rh1-f1 Kh8-g7 Nb5-d6 g4-g3 Rf1-f7+ Kg7-h6 Ke1-d2
8/11 00:00 36k 3,615k +0.25 Nb5-d6 b6-b5 Rh1-f1 Kh8-g8 Rf1-f7 Ba5-b6 Rf7-b7 g4-g3
9/13 00:00 76k 4,021k +0.21 Rh1-f1 a6xb5 Rf1-f7 g4-g3 Ke1-d2 Bh5-g4 Rf7-e7 e6-e5 Kd2-c1 Bg4-f5 Kc1-d1 Bf5-g4+ Kd1-d2
10/14 00:00 80k 4,024k +0.25 Rh1-f1 a6xb5 Rf1-f7 g4-g3 Ke1-d2 Bh5-g4 Rf7-e7 e6-e5 Kd2-c1 Bg4-f5 Kc1-b2 Bf5-c8 Kb2-a1 Bc8-f5 Ka1-a2
11/15 00:00 106k 3,921k +0.18 Nb5-d4 Kh8-g8 Ke1-d2 g4-g3 Nd4xe6 Bh5-g4 Ne6xg5 Kg8-g7 Ng5-h7 Bg4-f5 Rh1-e1 Bf5-e4 Re1-c1 Be4xg2
12/15 00:00 145k 4,015k +0.17 Nb5-d4 Kh8-g8 Ke1-d2 g4-g3 Rh1-c1 b6-b5 Nd4xe6 Bh5-g4 Rc1-c6 Bg4xe6 Rc6xe6 Kg8-g7
13/19 00:00 271k 4,099k +0.21 Nb5-d4 g4-g3 Rh1-f1 b6-b5 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-b7 Ba5-d8 Nd4-c6 Bd8-f6 Ke1-d2 Bf6-c3+ Kd2-c2 Bh5-g4
14/19 00:00 304k 4,112k +0.19 Nb5-d4 g4-g3 Rh1-f1 b6-b5 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-b7 Ba5-d8 Rb7-b8 Kg8-g7 Nd4xe6+ Kg7-f6 Rb8xd8 Kf6xe6 Rd8-f8
15/20 00:00 490k 4,576k +0.12 Nb5-d4 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8 Nd4xe6 g4-g3 Ke1-d2 Bh5-g4 Rf7-f6 Bg4xe6 Rf6xg6
16/21 00:00 510k 4,592k +0.14 Nb5-d4 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Nd4xe6 g4-g3 Rf8-f7+ Kh7-h8 Ke1-d2 Bh5-g4 Rf7-f6 Bg4-f5 Rf6xf5 g6xf5 Kd2-e2 Kh8-h7
17/19 00:00 584k 4,597k +0.08 Nb5-d4 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Nd4xe6 g4-g3 Rf8-f7+ Kh7-h8 Ke1-d2 Bh5-g4 Rf7-f6 Bg4-f5 Ne6xg5 Kh8-g7 Rf6xb6 Kg7-h6 Rb6xg6+ Bf5xg6
18/23 00:00 849k 4,822k +0.05 Nb5-d4 b6-b5 Rh1-f1 Ba5-b6 Nd4xe6 g4-g3 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8 Ke1-d2 Bh5-g4 Ne6xg5 Bb6-c5 Ng5-h7 Kh8-g8 Rf7-b7 Bc5-d4 Nh7-g5 Bd4-e5 Rb7-e7 Be5-f4+ Kd2-c2 Bf4xg5
19/25 00:00 1,687k 5,320k +0.13 Rh1-f1 g4-g3 Nb5-d4 Bh5-g4 Rf1-f7 b6-b5 Rf7-b7 Ba5-b6 Rb7xb6 Kh8-g7 Rb6-b8 Kg7-f6 Nd4-c6 Kf6-f5 Rb8-h8 Bg4-h5 Ke1-d2 Kf5-g4 Nc6-e5+ Kg4-f4
20/24 00:00 2,125k 5,506k +0.27 g2-g3 a6xb5 Ke1-d2 Kh8-g7 Rh1-f1 e6-e5 Kd2-e3 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 Kg7-f7 Rd6xd5 e5-e4 Ke3xe4 Kf7-g7 Rd5-d8 Kg7-h6 Ke4-e5
21/25 00:00 2,543k 5,652k +0.99 g2-g3 a6xb5 Rh1-f1 e6-e5 Ke1-d2 e5-e4 Kd2-e3 Kh8-g7 Ke3-d4 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 Kg7-h6 Kd4-e3 Kh6-g7 Rd6xd5 Kg7-f6 Ke3xe4 Kf6-g7 Rd5-d6 Kg7-h6 Rd6-d8
22/31 00:00 2,870k 5,834k +M33 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-d2 Kg8-g7 Kd2-e3 e6-e5 Ke3-d3 Kg7-g8 Rf1-f6 a6xb5 Kd3-e3 Kg8-h7 Rf6-f1 Kh7-g7 Ke3-d3 Kg7-h8 Rf1-f7 Kh8-g8 Rf7-f6 Kg8-h7 Kd3-e3
23/30 00:00 2,927k 5,855k +M28 g2-g3 Kh8-h7 Rh1-f1 e6-e5 Ke1-d2 e5-e4 Kd2-e3 Kh7-g7 Ke3-d4 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 e4-e3 Kd4xe3 Kg7-g8 Rd6xd5 Kg8-f8 Ke3-d4 Kf8-g8 Rd5-d6 Kg8-f8 Kd4-e4 Kf8-e8
24/25 00:00 2,973k 5,888k +M27 g2-g3 Kh8-g7 Rh1-f1 Kg7-g8 Ke1-d2 Kg8-g7 Kd2-e3 e6-e5 Ke3-d3 Kg7-g8 Rf1-f6 Kg8-h7 Rf6-d6 Kh7-g7 Rd6xd5 Kg7-f6 Kd3-e3 Kf6-f5 Rd5-d6 e5-e4 Rd6-d5+ Kf5-e6 Ke3xe4 Ke6-f6
25/31 00:00 3,034k 5,925k +M27 g2-g3 e6-e5 Ke1-d2 Kh8-h7 Kd2-d3 Kh7-g8 Rh1-f1 Kg8-g7 Kd3-e3 e5-e4 Ke3-d4 Kg7-g8 Rf1-f6 Kg8-h8 Kd4-e3 Kh8-g7 Rf6-d6 d5-d4+ Ke3xe4 Kg7-f8 Rd6xd4 Kf8-g7 Rd4-d5 Kg7-f6 Rd5-d6+ Kf6-f7
26/29 00:00 3,062k 5,947k +M27 g2-g3 Kh8-g7 Rh1-f1 Kg7-g8 Ke1-d2 Kg8-g7 Kd2-e3 e6-e5 Ke3-d3 Kg7-g8 Rf1-f6 e5-e4+ Kd3-e3 d5-d4+ Ke3xe4 d4-d3 Ke4xd3 Kg8-g7 Rf6-f1 Kg7-h7 Kd3-e4 Kh7-h6 Rf1-f7 a6xb5 Rf7-f6 Kh6-g7 Rf6-d6 Kg7-f8 Rd6-d8+ Kf8-e7 Rd8-d5
27/34 00:00 3,181k 6,013k +M32 g2-g3 Kh8-h7 Ke1-d2 Kh7-g8 Rh1-f1 Kg8-g7 Kd2-e3 e6-e5 Ke3-d3 e5-e4+ Kd3-e3 Kg7-g8 Rf1-d1 d5-d4+ Ke3xe4 Kg8-f7 Rd1xd4 Kf7-f6 Rd4-d6+ Kf6-f7 Rd6-d7+ Kf7-e6 Rd7-d3 Ke6-f6 Rd3-d4 Kf6-f7 Rd4-d6 Kf7-e8 Ke4-e5 Ke8-e7 Rd6-d5
28/30 00:00 3,402k 6,054k +M25 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Ke3-d3 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 d5-d4 Kd3-e4 Kg7-f8 Rd6-d7 Kf8-e8 Rd7-d5 Ke8-e7 Ke4xe5 Ke7-f7 Rd5-d7+ Kf7-e8 Rd7xd4 Ke8-e7 Rd4-d1 a6xb5
29/36 00:00 3,447k 6,090k +M25 g2-g3 Kh8-h7 Rh1-f1 Kh7-h8 Ke1-d2 Kh8-g7 Kd2-e3 e6-e5 Ke3-d3 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 e5-e4+ Kd3-e3 Kg7-f7 Rd6xd5 Kf7-e7 Ke3xe4 Ke7-f6 Rd5-d6+ Kf6-e7 Ke4-e5 Ke7-f7 Rd6-d8 Kf7-e7 Rd8-d1 a6xb5 Rd1-d6 Ke7-f7
30/31 00:00 3,453k 6,090k +M29 g2-g3 Kh8-h7 Rh1-f1 Kh7-h8 Ke1-e2 Kh8-g7 Ke2-e3 e6-e5 Ke3-d3 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 e5-e4+ Kd3-e3 Kg7-f7 Rd6xd5 Kf7-e7 Ke3xe4 Ke7-f8 Rd5-d8+ Kf8-f7 Rd8-d6 Kf7-e7 Ke4-e5 Ke7-f7 Rd6-d3 Kf7-e7 Rd3-d1 a6xb5 Rd1-d6
31/37 00:00 4,683k 6,513k +M28 g2-g3 Kh8-h7 Rh1-f1 Kh7-h8 Ke1-e2 Kh8-g7 Ke2-e3 e6-e5 Ke3-e2 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 d5-d4 Ke2-d3 e5-e4+ Kd3xe4 Kg7-f7 Rd6xd4 Kf7-e8 Rd4-d6 Ke8-e7 Ke4-e5 a6xb5 Rd6-d1 Ke7-f7 Rd1-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Rd7-d5 Kf8-g7 Ke6-e5
32/38 00:00 4,763k 6,515k +M23 g2-g3 Kh8-h7 Rh1-f1 e6-e5 Ke1-d2 Kh7-g8 Kd2-d3 a6xb5 Kd3-e3 Kg8-g7 Ke3-d2 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 Kg7-f7 Kd2-d3 Kf7-e7 Rd6xd5 Ke7-f7 Kd3-e4 Kf7-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d1 Ke7-f7 Rd1-d7+ Kf7-e8 Ke5-e6 Ke8-f8
33/40 00:00 4,791k 6,510k +M24 g2-g3 Kh8-h7 Rh1-f1 e6-e5 Ke1-d2 Kh7-g8 Kd2-d3 Kg8-g7 Kd3-e3 a6xb5 Ke3-d2 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 Kg7-f7 Kd2-d3 e5-e4+ Kd3-e3 Kf7-e7 Rd6xd5 Ke7-f7 Rd5-d4 Kf7-e7 Ke3xe4 Ke7-e6 Rd4-d1 Ke6-f6 Rd1-d6+ Kf6-f7 Ke4-d5 Kf7-e7 Kd5-e5 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6
34/35 00:00 4,810k 6,508k +M23 g2-g3 Kh8-h7 Rh1-f1 e6-e5 Ke1-d2 Kh7-g8 Kd2-d3 Kg8-g7 Kd3-e3 a6xb5 Ke3-e2 e5-e4 Ke2-e3 Kg7-g8 Rf1-d1 d5-d4+ Ke3xe4 d4-d3 Rd1-f1 d3-d2 Ke4-e5 d2-d1Q Rf1xd1 Kg8-f7 Rd1-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Rd7-d5 Kf8-g8 Ke6-f6 Kg8-h7 Rd5-d7+ Kh7-g8 Kf6-e5
35/40 00:00 4,940k 6,552k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Ke3-e2 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 Kg7-f7 Ke2-e3 Kf7-e7 Rd6xd5 Ke7-e6 Ke3-e4 a6xb5 Rd5-d1 Ke6-f6 Rd1-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d1 Ke7-f7 Rd1-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7
36/36 00:00 4,958k 6,550k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Ke3-e2 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 Kg7-f7 Ke2-e3 Kf7-e7 Rd6xd5 Ke7-e6 Ke3-e4 a6xb5 Rd5-d1 Ke6-f6 Rd1-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d1 Ke7-f7 Rd1-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7
37/40 00:00 4,971k 6,559k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Ke3-e2 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 Kg7-f7 Ke2-e3 Kf7-e7 Rd6xd5 Ke7-e6 Ke3-e4 a6xb5 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d5 Ke7-f7 Rd5-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-c8 Kh7-h6 Rc8-h8+
38/39 00:00 5,026k 6,578k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Ke3-e2 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 Kg7-f7 Ke2-e3 Kf7-e7 Rd6xd5 Ke7-e6 Ke3-e4 a6xb5 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d5 Ke7-f7 Rd5-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-c8 Kh7-h6 Rc8-h8+
39/40 00:00 5,106k 6,580k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Ke3-e2 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 Kg7-f7 Ke2-e3 Kf7-e7 Rd6xd5 Ke7-e6 Ke3-e4 a6xb5 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d5 Ke7-f7 Rd5-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-c8 Kh7-h6 Rc8-h8+
40/44 00:00 5,228k 6,584k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Ke3-e2 Kg7-g8 Rf1-f6 Kg8-g7 Rf6-d6 Kg7-f7 Ke2-e3 Kf7-e7 Rd6xd5 Ke7-e6 Ke3-e4 a6xb5 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-c8 Kh7-h6 Rc8-h8+
41/44 00:00 5,551k 6,569k +M20 g2-g3 Kh8-h7 Ke1-e2 Kh7-g8 Rh1-f1 Kg8-g7 Ke2-e3 e6-e5 Ke3-e2 Kg7-g8 Rf1-f6 Kg8-h8 Rf6-d6 Kh8-g7 Ke2-e3 Kg7-f7 Rd6xd5 Kf7-e6 Ke3-e4 a6xb5 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-c8 Kh7-h6 Rc8-h8+
42/40 00:00 5,625k 6,563k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-d2 Kg8-g7 Kd2-e3 e6-e5 Ke3-d3 Kg7-g8 Rf1-f6 e5-e4+ Kd3-e3 Kg8-g7 Rf6-d6 Kg7-f7 Rd6xd5 Kf7-f6 Ke3xe4 Kf6-e6 Rd5-d6+ Ke6-f7 Ke4-e5 Kf7-e7 Rd6-d4 a6xb5 Rd4-d1 Ke7-f7 Rd1-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-c8 Kh7-h6 Rc8-h8+
43/40 00:00 5,827k 6,555k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-d2 Kg8-g7 Kd2-e3 e6-e5 Ke3-d3 Kg7-g8 Rf1-f6 e5-e4+ Kd3-e3 Kg8-g7 Rf6-d6 Kg7-f7 Rd6xd5 Kf7-f6 Ke3xe4 Kf6-e6 Rd5-d6+ Ke6-f7 Ke4-e5 Kf7-e7 Rd6-d4 a6xb5 Rd4-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-c8 Kh7-h6 Rc8-h8+
44/40 00:00 5,937k 6,546k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-d2 Kg8-g7 Kd2-e3 e6-e5 Ke3-d3 Kg7-g8 Rf1-f6 e5-e4+ Kd3-e3 Kg8-g7 Rf6-d6 Kg7-f7 Rd6xd5 Kf7-f6 Ke3xe4 Kf6-e6 Rd5-d6+ Ke6-f7 Ke4-e5 Kf7-e7 Rd6-d3 a6xb5 Rd3-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
45/40 00:00 6,082k 6,547k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-d2 Kg8-g7 Kd2-e3 e6-e5 Ke3-d3 Kg7-g8 Rf1-f6 e5-e4+ Kd3-e3 Kg8-g7 Rf6-d6 Kg7-f7 Rd6xd5 Kf7-f6 Ke3xe4 Kf6-e6 Rd5-d6+ Ke6-f7 Ke4-e5 Kf7-e7 Rd6-d5 a6xb5 Rd5-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
46/40 00:00 6,302k 6,564k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-d2 Kg8-g7 Kd2-e3 e6-e5 Ke3-d3 Kg7-g8 Rf1-f6 e5-e4+ Kd3-e3 Kg8-g7 Rf6-d6 Kg7-f7 Rd6xd5 Kf7-f6 Ke3xe4 Kf6-e6 Rd5-d6+ Ke6-f7 Ke4-e5 Kf7-e7 Rd6-d5 a6xb5 Rd5-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
47/40 00:01 6,593k 6,574k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-d2 Kg8-g7 Kd2-e3 e6-e5 Ke3-e2 Kg7-g8 Rf1-f6 Kg8-h8 Rf6-d6 Kh8-g7 Ke2-e3 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d4 a6xb5 Rd4-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
48/40 00:01 6,817k 6,592k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-d2 Kg8-g7 Kd2-e3 e6-e5 Ke3-e2 Kg7-g8 Rf1-f6 Kg8-h8 Ke2-e3 Kh8-g7 Rf6-d6 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d3 a6xb5 Rd3-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
49/40 00:01 7,141k 6,631k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Ke2-e3 Kh8-g7 Rf6-d6 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d3 a6xb5 Rd3-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
50/42 00:01 7,245k 6,647k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Rf6-d6 Kh8-g7 Ke2-e3 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d3 a6xb5 Rd3-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
51/40 00:01 7,357k 6,658k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Rf6-d6 Kh8-g7 Ke2-e3 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d3 a6xb5 Rd3-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
52/40 00:01 7,752k 6,631k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Rf6-d6 Kh8-g7 Ke2-e3 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d3 a6xb5 Rd3-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
53/40 00:01 7,939k 6,622k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Rf6-d6 Kh8-g7 Ke2-e3 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
54/40 00:01 8,251k 6,654k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Rf6-d6 Kh8-g7 Ke2-e3 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
55/40 00:01 8,493k 6,650k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Ke2-e3 Kh8-g7 Rf6-d6 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
56/40 00:01 8,745k 6,686k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Ke2-e3 Kh8-g7 Rf6-d6 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
57/40 00:01 9,088k 6,683k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Ke2-e3 Kh8-g7 Rf6-d6 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
58/40 00:01 9,665k 6,712k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Ke2-e3 Kh8-g7 Rf6-d6 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
59/40 00:01 9,701k 6,704k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Ke2-e3 Kh8-g7 Rf6-d6 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
60/40 00:01 9,937k 6,696k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Ke2-e3 Kh8-g7 Rf6-d6 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
61/40 00:01 10,312k 6,718k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Ke2-e3 Kh8-g7 Rf6-d6 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
62/40 00:01 10,686k 6,742k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Ke2-e3 Kh8-g7 Rf6-d6 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
63/40 00:01 11,626k 6,839k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Ke2-e3 Kh8-g7 Rf6-d6 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
64/40 00:01 13,339k 6,901k +M20 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-d2 e6-e5 Kd2-e2 Kg7-g8 Rf1-f6 Kg8-h8 Ke2-e3 Kh8-g7 Rf6-d6 Kg7-h8 Rd6xd5 Kh8-g7 Ke3-e4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
65/40 00:02 15,230k 6,954k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Rf1-f2 a6xb5 Rf2-f1 e6-e5 Ke2-e3 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f7 Ke3-e4 Kf7-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
66/40 00:02 15,665k 6,944k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Rf1-f2 a6xb5 Rf2-f1 e6-e5 Ke2-e3 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f7 Ke3-e4 Kf7-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
67/38 00:02 16,122k 6,952k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Rf1-f2 a6xb5 Rf2-f1 e6-e5 Ke2-e3 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f7 Ke3-e4 Kf7-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
68/38 00:02 16,854k 6,939k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Rf1-f2 a6xb5 Rf2-f1 e6-e5 Ke2-e3 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f7 Ke3-e4 Kf7-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
69/38 00:02 17,891k 6,980k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Rf1-f2 a6xb5 Rf2-f1 e6-e5 Ke2-e3 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f7 Ke3-e4 Kf7-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
70/38 00:02 18,510k 7,004k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Rf1-f2 a6xb5 Rf2-f1 e6-e5 Ke2-e3 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f7 Ke3-e4 Kf7-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
71/38 00:02 19,463k 7,057k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Rf1-f2 a6xb5 Rf2-f1 e6-e5 Ke2-e3 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f7 Ke3-e4 Kf7-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
72/38 00:03 21,737k 6,996k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Rf1-f2 a6xb5 Rf2-f1 e6-e5 Ke2-e3 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f7 Ke3-e4 Kf7-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d4 Ke7-f7 Rd4-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
73/38 00:03 21,866k 7,008k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Rf1-f2 a6xb5 Rf2-f1 e6-e5 Ke2-e3 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f7 Ke3-e4 Kf7-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d1 Ke7-f7 Rd1-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
74/38 00:03 25,023k 6,997k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Rf1-f2 a6xb5 Rf2-f1 e6-e5 Ke2-e3 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f7 Ke3-e4 Kf7-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d1 Ke7-f7 Rd1-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
75/38 00:03 27,466k 7,064k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Rf1-f2 a6xb5 Rf2-f1 e6-e5 Ke2-e3 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f7 Rd5xe5 Kf7-g8 Ke3-e4 Kg8-g7 Ke4-d5 Kg7-f6 Kd5-d6 Kf6-f7 Re5-e7+ Kf7-f8 Re7-d7 Kf8-e8 Kd6-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-c8 Kh7-h6 Rc8-h8+
76/38 00:04 28,834k 7,093k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Rf1-f2 a6xb5 Rf2-f1 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f7 Rd5xe5 Kf7-g8 Ke3-e4 Kg8-g7 Ke4-d5 Kg7-f6 Kd5-d6 Kf6-f7 Re5-e7+ Kf7-f8 Re7-d7 Kf8-e8 Kd6-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-c8 Kh7-h6 Rc8-h8+
77/38 00:04 30,782k 7,047k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Rf1-f2 a6xb5 Rf2-f1 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f6 Ke3-e4 Kf6-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d1 Ke7-f7 Rd1-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
78/38 00:04 34,074k 7,020k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Rf1-f2 a6xb5 Rf2-f1 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f6 Ke3-e4 Kf6-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d1 Ke7-f7 Rd1-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
79/38 00:05 37,197k 6,946k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Rf1-f2 a6xb5 Rf2-f1 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f6 Ke3-e4 Kf6-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d1 Ke7-f7 Rd1-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
80/38 00:05 39,626k 6,918k +M19 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Rf1-f2 a6xb5 Rf2-f1 Kg7-h7 Rf1-d1 Kh7-g7 Rd1xd5 Kg7-f6 Ke3-e4 Kf6-e6 Rd5-d3 Ke6-f6 Rd3-d6+ Kf6-f7 Ke4xe5 Kf7-e7 Rd6-d1 Ke7-f7 Rd1-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
81/38 00:08 59,395k 6,908k +M18 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Rf1-f2 Kg7-g8 Rf2-d2 e5-e4 Rd2xd5 Kg8-g7 Ke3xe4 Kg7-f6 Rd5-d6+ Kf6-f7 Ke4-e5 Kf7-e7 Rd6-d2 a6xb5 Rd2-d6 Ke7-f7 Rd6-d7+ Kf7-e8 Ke5-e6 Ke8-f8 Ke6-f6 Kf8-g8 Rd7-d8+ Kg8-h7 Rd8-f8 Kh7-h6 Rf8-h8+
82/36 00:11 77,452k 6,948k +M17 g2-g3 Kh8-h7 Rh1-f1 Kh7-g8 Ke1-e2 Kg8-g7 Ke2-e3 e6-e5 Ke3-d3 Kg7-g8 Rf1-e1 e5-e4+ Kd3-d4 Kg8-g7 Kd4xd5 Kg7-f6 Re1xe4 Kf6-f7 Kd5-d6 Kf7-f8 Kd6-e6 Kf8-g7 Re4-e2 Kg7-g8 Ke6-f6 Kg8-h8 Re2-e8+ Kh8-h7 Re8-c8 a6xb5 Rc8-d8 Kh7-h6 Rd8-h8+
Russian believe that they are special, that they can Kill thousands of Ukranian civilians, but cry like babies when a few Russian...
Chessqueen
Posts: 5685
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

Re: Easy for humans, very hard for engines

Post by Chessqueen »

FEN: 7k/8/pp2p1p1/bN1p2pb/1p4p1/1P6/6P1/4K2R w - - 0 1

Crystal_x86-64-bmi2:
NNUE evaluation using nn-ae6a388e4a1a.nnue
NNUE evaluation using nn-baff1ede1f90.nnue
1/3 00:00 259 130k +0.04 Nb5-c7
2/5 00:00 2k 768k -0.80 Nb5-d4 Kh8-g7 Nd4xe6+ Kg7-f6
3/5 00:00 2k 1,001k -0.71 Nb5-d4 Kh8-g7 Nd4-c6
4/7 00:00 9k 2,851k -0.95 Nb5-d4 Kh8-g7 Nd4xe6+ Kg7-f6
5/6 00:00 10k 3,403k -0.48 Nb5-d4 Kh8-g7 Nd4xe6+ Kg7-f6 Ne6-c7
6/10 00:00 22k 3,601k -0.52 Nb5-c7 Kh8-g7 Nc7xe6+ Kg7-f6 Ne6-c7 g4-g3
7/13 00:00 26k 3,260k -0.39 Nb5-c7 Kh8-g8 Nc7xe6 Kg8-f7 Ne6-d8+ Kf7-f6 Rh1-f1+ Kf6-e5
8/15 00:00 50k 3,321k 0.00 Nb5-c7 Kh8-g8 Rh1-f1 g4-g3 Nc7xe6 Bh5-g4 Rf1-f8+ Kg8-h7 Rf8-f7+ Kh7-h8 Rf7-f8+
9/17 00:00 57k 3,339k 0.00 Nb5-c7 Kh8-g8 Rh1-f1 g4-g3 Nc7xe6 Bh5-g4 Rf1-f8+ Kg8-h7 Rf8-f7+ Kh7-h8 Rf7-f8+
10/20 00:00 76k 3,284k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
11/12 00:00 83k 3,335k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
12/12 00:00 99k 3,316k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
13/12 00:00 130k 3,335k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
14/12 00:00 172k 3,372k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
15/12 00:00 224k 3,340k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
16/27 00:00 344k 3,304k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
17/12 00:00 450k 3,459k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
18/12 00:00 604k 3,337k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
19/12 00:00 843k 3,481k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
20/12 00:00 1,009k 3,566k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
21/12 00:00 1,247k 3,616k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
22/12 00:00 1,611k 3,738k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
23/12 00:00 2,159k 3,896k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
24/12 00:00 2,616k 3,982k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
25/12 00:00 3,474k 4,002k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
26/12 00:01 4,726k 3,962k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
27/12 00:01 5,961k 3,858k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
28/12 00:02 8,452k 3,710k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Bh5-g4 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-h8
29/13 00:03 11,054k 3,653k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
30/13 00:04 15,509k 3,515k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
31/13 00:05 19,269k 3,526k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
32/13 00:06 24,248k 3,504k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
33/13 00:08 28,785k 3,506k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
34/13 00:09 33,449k 3,457k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
35/13 00:12 43,764k 3,397k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
36/13 00:16 55,127k 3,358k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
37/13 00:20 68,239k 3,315k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
38/13 00:25 83,650k 3,287k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
39/13 00:30 100,242k 3,275k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
40/13 00:38 123,853k 3,241k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
41/13 00:45 147,141k 3,218k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
42/13 00:56 181,369k 3,198k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
43/13 01:11 226,976k 3,170k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
44/13 01:23 262,650k 3,157k 0.00 Nb5-c7 g4-g3 Nc7xe6 b6-b5 Rh1-f1 Ba5-b6 Rf1-f8+ Kh8-h7 Rf8-f7+ Kh7-g8 Rf7-f8+
45/49+ 01:37 305,720k 3,131k +0.03 g2-g3
45/49+ 01:39 310,568k 3,136k +0.05 g2-g3
45/59+ 02:41 551,904k 3,408k +9.54 g2-g3
45/103 03:17 824,951k 4,168k +M17 g2-g3 Kh8-g8 Rh1-f1 e6-e5 Ke1-d2 Kg8-h7 Kd2-e3 Kh7-g7 Ke3-d3 Kg7-g8 Rf1-e1 d5-d4 Re1-f1 Kg8-h8 Kd3-e4 d4-d3 Ke4xe5 Kh8-g7 Ke5-e6 Kg7-h6 Ke6-f6 d3-d2 Rf1-d1 Kh6-h7 Rd1xd2 Kh7-g8 Rd2-d8+ Kg8-h7 Kf6-f7 a6xb5 Rd8-e8 Kh7-h6 Re8-h8+
46/77 03:30 889,388k 4,233k +M17 g2-g3 e6-e5 Rh1-f1 Kh8-g7 Ke1-e2 Kg7-h7 Ke2-e3 Kh7-g7 Ke3-d3 Kg7-g8 Rf1-e1 d5-d4 Re1-f1 Kg8-h8 Kd3-e4 d4-d3 Ke4xe5 Kh8-g7 Ke5-e6 Kg7-g8 Rf1-d1 d3-d2 Rd1xd2 Kg8-g7 Rd2-d8 a6xb5 Ke6-e7 Kg7-h6 Ke7-f7 Kh6-h7 Kf7-f6 Kh7-h6 Rd8-h8+
Russian believe that they are special, that they can Kill thousands of Ukranian civilians, but cry like babies when a few Russian...
chessica
Posts: 710
Joined: Thu Aug 11, 2022 11:30 pm
Full name: Esmeralda Pinto

Re: Easy for humans, very hard for engines

Post by chessica »

[d]7k/8/pp2p1p1/bN1p2pb/1p4p1/1P6/6P1/4K2R w K - 0 1

Sun-15-sse3-popcnt:
Found 270 tablebases
NNUE evaluation using nn-ea6ac98d29d4.nnue (132MiB, (22528, 3072, 15, 32, 1))
NNUE evaluation using nn-321bbccb5bcf.nnue (6MiB, (22528, 128, 15, 32, 1))

50/40 12:37,952 134.668k 178k +M17 g2-g3 Kh8-h7 Th1-f1 Kh7-g7 Ke1-d2 a6xb5 Kd2-d3 e6-e5 Tf1-f2 Kg7-h8 Tf2-e2 Kh8-g8 Te2xe5 Kg8-f8 Kd3-d4 Kf8-g7 Kd4xd5 Kg7-f6 Te5-e6+ Kf6-f7 Kd5-e5 Kf7-g7 Te6-e7+ Kg7-h6 Te7-e8 Kh6-g7 Ke5-e6 Kg7-h6 Ke6-f6 Kh6-h7 Te8-d8 Kh7-h6 Td8-h8+
...
79/34 1:31:39,458 1.482.533k 270k +M17 g2-g3 Kh8-h7 Th1-f1 e6-e5 Ke1-d2 Kh7-g8 Kd2-e3 Kg8-g7 Sb5-c7 b6-b5 Sc7xd5 La5-b6+ Sd5xb6 a6-a5 Sb6-d5 a5-a4 Ke3-e4 a4xb3 Ke4xe5 b3-b2 Ke5-e6 Kg7-h6 Sd5-f6 b4-b3 Tf1-b1 b5-b4 Tb1xb2 Kh6-g7 Tb2-d2 Kg7-h6 Td2-d7 b3-b2 Sf6-g8+


Sun-15-MPV-sse3-popcnt:

Found 270 tablebases
NNUE evaluation using nn-ea6ac98d29d4.nnue (132MiB, (22528, 3072, 15, 32, 1))
NNUE evaluation using nn-321bbccb5bcf.nnue (6MiB, (22528, 128, 15, 32, 1))
...
45/38 34:57,113 430.990k 206k +M18 g2-g3 Kh8-g8 Th1-f1 Kg8-h7 Ke1-e2 Kh7-g7 Ke2-d3 e6-e5 Kd3-e3 a6xb5 Ke3-d3 Kg7-g8 Tf1-e1 e5-e4+ Kd3-d4 e4-e3 Te1xe3 Kg8-f7 Kd4xd5 Kf7-f6 Te3-e4 Kf6-f7 Kd5-d6 Kf7-g7 Kd6-e6 Kg7-g8 Te4-d4 Kg8-h7 Ke6-f6 Kh7-h6 Td4-d2 Kh6-h7 Td2-d8 Kh7-h6 Td8-h8+
45/38 35:37,334 436.407k 204k +M18 g2-g3 Kh8-g8 Th1-f1 Kg8-h7 Ke1-e2 Kh7-g7 Ke2-d3 e6-e5 Kd3-e3 a6xb5 Ke3-d3 Kg7-g8 Tf1-e1 e5-e4+ Kd3-d4 e4-e3 Te1xe3 Kg8-f7 Kd4xd5 Kf7-f6 Te3-e4 Kf6-f7 Kd5-d6 Kf7-g7 Kd6-e6 Kg7-g8 Te4-d4 Kg8-h7 Ke6-f6 Kh7-h6 Td4-d2 Kh6-h7 Td2-d8 Kh7-h6 Td8-h8+
45/38 35:51,734 439.134k 204k +M18 g2-g3 Kh8-g8 Th1-f1 Kg8-h7 Ke1-e2 Kh7-g7 Ke2-d3 e6-e5 Kd3-e3 a6xb5 Ke3-d3 Kg7-g8 Tf1-e1 e5-e4+ Kd3-d4 e4-e3 Te1xe3 Kg8-f7 Kd4xd5 Kf7-f6 Te3-e4 Kf6-f7 Kd5-d6 Kf7-g7 Kd6-e6 Kg7-g8 Te4-d4 Kg8-h7 Ke6-f6 Kh7-h6 Td4-d2 Kh6-h7 Td2-d8 Kh7-h6 Td8-h8+
46/36 36:01,570 442.799k 205k +M18 g2-g3 Kh8-g8 Th1-f1 Kg8-h7 Ke1-e2 Kh7-g7 Ke2-d3 e6-e5 Kd3-e3 a6xb5 Ke3-d3 Kg7-g8 Tf1-e1 e5-e4+ Kd3-d4 e4-e3 Te1xe3 Kg8-f7 Kd4xd5 Kf7-f6 Te3-e6+ Kf6-g7 Te6-e7+ Kg7-h6 Te7-e8 Kh6-h7 Kd5-e6 Kh7-g7 Te8-d8 Kg7-h6 Ke6-f6 Kh6-h7 Td8-f8 Kh7-h6 Tf8-h8+
chessica
Posts: 710
Joined: Thu Aug 11, 2022 11:30 pm
Full name: Esmeralda Pinto

Re: Easy for humans, very hard for engines

Post by chessica »

FEN: 7k/8/pp2p1p1/bN1p2pb/1p4p1/1P6/6P1/4K2R w K - 0 1

Stockfish-16.1:

...

54/34 1:29:27,820 1.045.252k 195k +M17 g2-g3 Kh8-g8 Th1-f1 Kg8-g7 Ke1-d2 e6-e5 Kd2-e3 Kg7-g8 Tf1-d1 a6xb5 Td1xd5 Kg8-f7 Td5xe5 Kf7-f6 Ke3-d4 Kf6-g7 Kd4-d5 Kg7-f6 Te5-e6+ Kf6-f7 Kd5-e5 Kf7-g7 Te6-e7+ Kg7-h6 Te7-e8 Kh6-g7 Ke5-e6 Kg7-h6 Ke6-f6 Kh6-h7 Te8-b8 Kh7-h6 Tb8-h8+

Lc0-v0.31.0-rc1-windows-cpu-openblas:


...
13/35 1:31:27,008 579k 105 -0,07 Sb5-c7 g4-g3 Sc7xe6 b6-b5 Th1-f1 La5-b6 Tf1-f8+ Kh8-h7 Tf8-f7+ Kh7-h8 Tf7-f8+
Dann Corbit
Posts: 12615
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Easy for humans, very hard for engines

Post by Dann Corbit »

Huntsman seems the most impressive of these, solving instantly.
Stockfish takes a long time even on a fast machine.
LC0 does surprisingly well, considering that tactics is not usually a big strength.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
chessica
Posts: 710
Joined: Thu Aug 11, 2022 11:30 pm
Full name: Esmeralda Pinto

Re: Easy for humans, very hard for engines

Post by chessica »

Dann Corbit wrote: Sun May 26, 2024 7:56 pm Huntsman seems the most impressive of these, solving instantly.
Stockfish takes a long time even on a fast machine.
LC0 does surprisingly well, considering that tactics is not usually a big strength.
Stockfish 14.1 is much faster than 16.1.
MMarco
Posts: 200
Joined: Sun Apr 12, 2020 1:09 am
Full name: Marc-O Moisan-Plante

Re: Easy for humans, very hard for engines

Post by MMarco »

Old Stockfish with 'MagicTacticSolver' get a mate in 17 on my phone:

Code: Select all

[84] m17 g3 e5 Re2 Rg8 Tf1 Rh8 Rd3 Rg7 Tf2 axb5 Tf1 Rg8 Te1 e4+ Rd4 Rf7 Rxd5 Re7 Txe4+ Rf6 Rd6 Rf7 Te7+ Rf8 Rd7 Rg8 Re8 Rh8 Rf7 Rh7 Te8 Rh6 Th8#
d:85/34 7:Ca7 t:105.2 n:357M nps:3400k tb:58060 h:94
fishpov
Posts: 107
Joined: Sat Mar 07, 2015 6:05 pm

Re: Easy for humans, very hard for engines

Post by fishpov »

Dann Corbit wrote: Fri May 24, 2024 9:58 pm [d]7k/8/pp2p1p1/bN1p2pb/1p4p1/1P6/6P1/4K2R w - - bm g3; id "ACT4.051";
It is clear that by pushing the pawn to g3, both black bishops are in a bullet proof box.
Pushing the rook to f1 will keep the king in a 4 cell prison.
Anywhere on rank 7 would be as good, keeping the king on his baseline.
Meanwhile, the white king can clear the center pawns (possibly with rook help) and then execute a king/rook mate algorithm.
Of course, the optimal path will probably be much better than that simple plan.
I see that chess engines want to save the knight from the pawn, but that is instantly counter productive because it allows the bishop to escape.
I wonder why, in a case like this that is so easy for humans, chess engines don't see the prison cells.
I think last ShashChess in High Tal option is good for these kind of positions
7k/8/pp2p1p1/bN1p2pb/1p4p1/1P6/6P1/4K2R w K - 0 1

Analysis by ShashChess 35.3 High Tal:

.................
1.g3
White is better: +/- (1.25 ++) Depth: 56/17 00:00:43 175MN
1.g3
White is clearly better: +- (1.67 ++) Depth: 56/17 00:00:48 192MN
1.g3
White is clearly better: +- (2.24 ++) Depth: 56/17 00:00:54 215MN
1.g3
White has a decisive advantage: +- (3.00 ++) Depth: 56/17 00:01:00 240MN
1.g3
White is winning: +- (4.00 ++) Depth: 56/17 00:01:06 273MN
1.g3
White is clearly winning: +- (5.34 ++) Depth: 56/51 00:01:12 300MN
1.g3 Kg8 2.Rf1 Kh7 3.Nd4 b5 4.Rf7+ Kh8 5.Rb7 Bd8 6.Rb8 Kg7 7.Rxd8 Kf6 8.Kd2 a5 9.Nxb5 Ke5 10.Kd3 a4 11.bxa4 Kf5 12.Nd4+ Kf6 13.Rb8 e5 14.Rxb4 Kf7 15.a5 Kg7 16.a6 Kf6 17.Rb6+ Ke7 18.Ne6 Kd7 19.a7 d4

...................

White is clearly winning: +- (74.33 ++) Depth: 57/66 00:06:38 2896MN
1.g3 Kg8 2.Rf1 e5 3.Kd2 axb5 4.Ke2 Kh8 5.Rd1 Kg7 6.Rxd5 Kf6 7.Ke3 Kf5 8.Kd3 Kf6 9.Ke4 Ke6 10.Rd2 Kf6 11.Rd6+ Kf7 12.Kxe5 Ke7 13.Rd1 Kf7 14.Rd7+ Ke8 15.Ke6 Kf8 16.Kf6 Kg8 17.Rd8+ Kh7 18.Rc8 Kh6 19.Rh8#
White mates: +- (#19) Depth: 57/71 00:08:38 3841MN
1.g3 Kg8 2.Rf1 e5 3.Kd2 axb5 4.Ke2 Kh8 5.Rf7 Kg8 6.Re7 e4 7.Ke3 Kf8 8.Re5 d4+ 9.Kxd4 Kg7 10.Kxe4 Kf7 11.Kd5 Kf6 12.Kd6 Kf7 13.Re7+ Kf8 14.Kd7 Kg8 15.Ke8 Kh8 16.Kf7 Kh7 17.Re8 Kh6 18.Rh8#
White mates: +- (#18) Depth: 58/38 00:08:50 3921MN
1.g3 Kg8 2.Rf1 e5 3.Kd2 axb5 4.Ke3 Kh8 5.Rf7 Kg8 6.Re7 d4+ 7.Kd3 e4+ 8.Kxd4 Kf8 9.Rxe4 Kg7 10.Ke5 Kf7 11.Kd6 Kg8 12.Ke6 Kg7 13.Rd4 Kg8 14.Kf6 Kh8 15.Rd8+ Kh7 16.Rc8 Kh6 17.Rh8#
White mates: +- (#17) Depth: 59/36 00:09:03 4017MN
1.g3 Kg8 2.Rf1 e5 3.Kd2 Kg7 4.Ke3 Kg8 5.Rd1 Kf7 6.Rxd5 e4 7.Kxe4 Ke6 8.Rd6+ Kf7 9.Ke5 Ke7 10.Rd1 Kf7 11.Rd7+ Ke8 12.Ke6 axb5 13.Rd4 Kf8 14.Kf6 Kg8 15.Rd8+ Kh7 16.Rc8 Kh6 17.Rh8#
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Harvey Williamson
Posts: 2015
Joined: Sun May 25, 2008 11:12 pm
Location: Whitchurch. Shropshire, UK.
Full name: Harvey Williamson

Re: Easy for humans, very hard for engines

Post by Harvey Williamson »

Latest Hiarcs finds it very quickly:
0:23/54-51, 1/18: 1.g3, 44.4M nodes (1.8M nps), 1K tbhits, 128MB hash, 2 threads
0:00: +1.46/24 1.g3
0:00: +2.00/24 1.g3 axb5 2.Rf1 Kh7 3.Ke2 e5 4.Ke3 Kg8 5.Rf6 e4 6.Kd4 Kg7 7.Re6 Kf7 8.Kxd5 e3 9.Rxe3 Kf8 10.Re6 Kf7 11.Ke5 Kg7 12.Rf6 Kh7 13.Re6
0:00: +2.00/25 1.g3 axb5 2.Rf1 e5 3.Kd2 Kh7 4.Ke3 e4 5.Kd4 Kg7 6.Kxd5 e3 7.Kd4 e2 8.Re1 Kh6 9.Rxe2 Kg7 10.Re6 Kf8 11.Re4 Kf7 12.Re5 Kf6 13.Kd5 Kf7
0:00: +2.00/26 1.g3 axb5 2.Rf1 e5 3.Kd2 Kh7 4.Ke3 e4 5.Kd4 Kg7 6.Kxd5 e3 7.Re1 Kf6 8.Rxe3 Kf7 9.Re5 Kf6 10.Re1 Kf7 11.Re6 Kg7 12.Ke5 Kf7 13.Rd6 Ke7 14.Rd5 Kf7 15.Rd3 Kg7 16.Rd6 Kf7 17.Re6 Kg7 18.Rf6
0:01: +2.00/27 1.g3 axb5 2.Rf1 e5 3.Kd2 Kh7 4.Ke3 e4 5.Kd4 Kg7 6.Kxd5 e3 7.Re1 e2 8.Rxe2 Kf7 9.Re6 Kf8 10.Kd4 Kg7 11.Re3 Kf6 12.Kd5 Kf7 13.Re4 Kg7 14.Re7+ Kg8 15.Kd4
0:03: +5.55/28 1.g3 Kh7 2.Rf1 Kg8 3.Ke2 Kg7 4.Nc7 e5 5.Nxd5 Kh7 6.Rf7+ Kg8 7.Rf6 Kh7 8.Nxb6 Bxb6 9.Rxb6 a5 10.Rb5 Kg8 11.Rxe5 Kf7 12.Rxa5 Kf6 13.Ke3 Ke7 14.Re5+ Kd7 15.Rb5 Kd6 16.Ke4 Ke6
0:03: +9.04/29 1.g3 Kh7 2.Rf1 Kg8 3.Kd2 Kg7 4.Nc7 e5 5.Nb5 Kg8 6.Rf6 Kg7 7.Re6 Kf7 8.Rxe5 Kf6 9.Re1 axb5 10.Kd3 Kg7 11.Re6 Kh6 12.Ke3 d4+ 13.Kxd4 Kh7 14.Ke5 Kg7 15.Rf6 Kh7 16.Rf2
0:04: +37.20/30 1.g3 Kh7 2.Rf1 Kg8 3.Kd2 Kg7 4.Ke2 e5 5.Kd3 axb5 6.Ke3 Kh8 7.Rf7 Kg8 8.Rf6 Kg7 9.Re6 d4+ 10.Kd3 e4+ 11.Rxe4 Kf6 12.Rxd4 Ke7 13.Ke4 Ke6 14.Rd1 Kf6 15.Rd6+ Kg7 16.Ke5
0:05: #22/31 1.g3 Kh7 2.Rf1 Kg8 3.Rf6 Kg7 4.Rxe6 Kf7 5.Rd6 Ke7 6.Ke2 axb5 7.Rxd5 Ke6 8.Rd4 Kf5 9.Kd3 Ke5 10.Ke3 Kf5 11.Rd5+ Kf6 12.Ke4 Ke6 13.Rd3 Kf6 14.Rd6+ Kf7 15.Ke5 Ke7 16.Rd4 Kf7 17.Rd7+ Ke8 18.Ke6 Kf8 19.Kf6 Kg8 20.Rd8+ Kh7 21.Ra8 Kh6
0:05: #20/32 1.g3 Kh7 2.Rf1 Kg8 3.Ke2 Kg7 4.Ke3 e5 5.Kd3 Kg8 6.Rf6 Kg7 7.Re6 e4+ 8.Kd4 e3 9.Kxd5 e2 10.Rxe2 Kf7 11.Re6 Kf8 12.Rd6 Ke7 13.Ke5 Kf7 14.Rd7+ Ke8 15.Ke6 Kf8 16.Kf6 Kg8 17.Rd8+ Kh7 18.Re8 axb5 19.Rb8 Kh6 20.Rh8#
0:05: #20/33 1.g3 Kh7 2.Rf1 Kg8 3.Ke2 Kg7 4.Ke3 e5 5.Kd3 Kg8 6.Rf6 Kg7 7.Rd6 e4+ 8.Ke3 axb5 9.Rxd5 Kf6 10.Kxe4 Ke6 11.Rd4 Kf6 12.Rd6+ Kf7 13.Ke5 Ke7 14.Rd1 Kf7 15.Rd7+ Ke8 16.Ke6 Kf8 17.Kf6 Kg8 18.Rd8+ Kh7 19.Ra8 Kh6 20.Rh8#
0:05: #20/34 1.g3 Kh7 2.Rf1 Kg8 3.Ke2 Kg7 4.Ke3 e5 5.Kd3 Kg8 6.Rf6 Kg7 7.Rd6 e4+ 8.Ke3 axb5 9.Rxd5 Kf6 10.Kxe4 Ke6 11.Rd4 Kf6 12.Rd6+ Kf7 13.Kd5 Ke7 14.Ke5 Kf7 15.Rd7+ Ke8 16.Ke6 Kf8 17.Kf6 Kg8 18.Rd8+ Kh7 19.Ra8 Kh6 20.Rh8#
0:06: #20/35 1.g3 Kh7 2.Rf1 Kg8 3.Ke2 Kg7 4.Ke3 e5 5.Kd3 Kg8 6.Rf6 e4+ 7.Ke3 Kg7 8.Rd6 axb5 9.Rxd5 Kf6 10.Kxe4 Ke6 11.Rd4 Kf6 12.Rd6+ Kf7 13.Ke5 Ke7 14.Rd4 Kf7 15.Rd7+ Ke8 16.Ke6 Kf8 17.Kf6 Kg8 18.Rd8+ Kh7 19.Ra8 Kh6 20.Rh8#
0:06: #19/36 1.g3 Kh7 2.Rf1 Kg8 3.Ke2 Kg7 4.Ke3 e5 5.Kd3 Kg8 6.Re1 e4+ 7.Kd4 Kf7 8.Kxd5 Ke7 9.Rxe4+ Kf6 10.Re6+ Kf7 11.Rd6 Ke7 12.Ke5 axb5 13.Rd2 Kf7 14.Rd7+ Ke8 15.Ke6 Kf8 16.Kf6 Kg8 17.Rd8+ Kh7 18.Ra8 Kh6 19.Rh8#