Mate in 17 revisited

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Michael Diosi
Posts: 672
Joined: Mon Jun 22, 2009 1:37 pm

Mate in 17 revisited

Post by Michael Diosi »

Hi all,

A problem by Joseph Halumbriek (Mate in in 17).
[d]6k1/8/5Q2/8/8/8/3p1pp1/3Kbrrb w - - 0 1

is only solved by YACE and of course by ChestUCI

But going towards the end till we reach this position (Mate in 4)

[d]6Q1/8/8/7k/8/8/3p1pp1/3Kbrrb w - - 26 14

Many engines won't find the mate. Whatever they cut away in the search it must be wrong

Michael
http://www.playwitharena.com
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kgburcham
Posts: 2016
Joined: Sun Feb 17, 2008 4:19 pm

Re: Mate in 17 revisited

Post by kgburcham »

[d] 6k1/8/5Q2/8/8/8/3p1pp1/3Kbrrb w - -

Children restarted.
Deep Rybka 4 x64 (2048 MB)

33.01 0:02 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qe7 Kh8 4.Qc7 Kg8 5.Qe7 Kh8 6.Qc7 Kg8 7.Qe7 Kh8 8.Qc7 Kg8 9.Qe7 Kh8 10.Qc7 Kg8 11.Qe7 Kh8 12.Qc7 Kg8 13.Qe7 Kh8 14.Qc7 (3.613.464) 1764
34.01 0:02 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qe7 Kh8 4.Qc7 Kg8 5.Qe7 Kh8 6.Qc7 Kg8 7.Qe7 Kh8 8.Qc7 Kg8 9.Qe7 Kh8 10.Qc7 Kg8 11.Qe7 Kh8 12.Qc7 Kg8 13.Qe7 Kh8 14.Qc7 (4.977.460) 1851
35.01 0:03 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg6 5.Qe6+ Kg7 6.Qe5+ Kg6 7.Qe6+ Kg7 8.Qe5+ Kg6 9.Qe6+ Kg7 10.Qe5+ Kg6 11.Qe6+ Kg7 12.Qe5+ Kg6 13.Qe6+ Kg7 14.Qe5+ (7.560.950) 1912
36.01 0:06 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg6 5.Qe6+ Kg7 6.Qe5+ Kg6 7.Qe6+ Kg7 8.Qe5+ Kg6 9.Qe6+ Kg7 10.Qe5+ Kg6 11.Qe6+ Kg7 12.Qe5+ Kg6 13.Qe6+ Kg7 14.Qe5+ (12.655.031) 2004
37.01 0:07 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg6 5.Qe6+ Kg7 6.Qe5+ Kg6 7.Qe6+ Kg7 8.Qe5+ Kg6 9.Qe6+ Kg7 10.Qe5+ Kg6 11.Qe6+ Kg7 12.Qe5+ Kg6 13.Qe6+ Kg7 14.Qe5+ (15.919.731) 2033
38.01 0:10 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg6 5.Qd6+ Kf7 6.Qe5 Kg8 7.Qf6 Kh7 8.Qf7+ Kh8 9.Qf6+ Kh7 10.Qf7+ Kh8 11.Qf6+ Kh7 12.Qf7+ Kh8 13.Qf6+ Kh7 14.Qf7+ (21.467.896) 2014
39.01 0:15 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kf7 4.Qd7+ Kg8 5.Qf5 Kh8 6.Qd7 Kg8 7.Qf5 Kh8 8.Qd7 Kg8 9.Qf5 Kh8 10.Qd7 Kg8 11.Qf5 Kh8 12.Qd7 Kg8 13.Qf5 Kh8 14.Qd7 (30.309.804) 2003
40.01 0:20 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kf7 4.Qd7+ Kg6 5.Qd3+ Kf6 6.Qd6+ Kf7 7.Qe5 Kg8 8.Qf6 Kh7 9.Qf7+ Kh8 10.Qf6+ Kh7 11.Qf7+ Kh8 12.Qf6+ Kh7 13.Qf7+ Kh8 14.Qf6+ (41.767.548) 1999
41.01 0:29 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg6 5.Qe6+ Kg7 6.Qe7+ Kg6 7.Qe6+ Kg7 8.Qe7+ Kg6 9.Qe6+ Kg7 10.Qe7+ Kg6 11.Qe6+ Kg7 12.Qe7+ Kg6 13.Qe6+ Kg7 14.Qe7+ (58.220.590) 1986
42.01 0:42 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg6 5.Qe8+ Kg7 6.Qe7+ Kg6 7.Qe8+ Kg7 8.Qe7+ Kg6 9.Qe8+ Kg7 10.Qe7+ Kg6 11.Qe8+ Kg7 12.Qe7+ Kg6 13.Qe8+ Kg7 14.Qe7+ (84.381.183) 1993
43.01 1:08 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg8 5.Qe8+ Kg7 6.Qe5+ Kg6 7.Qe6+ Kh7 8.Qe7+ Kg6 9.Qd8 Kf5 10.Qf8+ Ke6 11.Qc8+ Kd6 12.Qd8+ Kc6 13.Qf6+ Kb7 14.Qd6 (134.481.190) 1965
44.01 1:51 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qd7+ Kg6 5.Qg4+ Kf6 6.Qg8 Kf5 7.Qd8 Ke6 8.Qa5 Kf7 9.Qc7+ Ke6 10.Qc8+ Kd6 11.Qd8+ Kc6 12.Qc8+ Kd6 13.Qd8+ Kc6 14.Qc8+ (219.202.735) 1973
45.01 3:40 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qc4+ Kg7 4.Qe6 Kh8 5.Qf6+ Kg8 (462.200.348) 2091
46.01 7:26 0.00 1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf5+ Kg7 4.Qg4+ Kf7 5.Qf4+ Ke6 6.Qc4+ Ke5 7.Qc7+ Kd4 8.Qd8+ Kc4 9.Qg8+ Kb5 10.Qd5+ Kb4 11.Qc6 Ka3 12.Qa8+ Kb3 13.Qc6 Kb4 14.Qd5 (947.847.236) 2122
47.01 20:33 0.00 1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf7+ Kh8 4.Qe8+ Kg7 5.Qe4 Kf7 6.Qh7+ Ke8 7.Qh8+ Ke7 8.Qh7+ Ke6 9.Qg6+ Kd5 10.Qd3+ Kc5 11.Qf5+ Kb4 12.Qg4+ Kb5 13.Qf5+ Kb6 14.Qg6+ (2.691.800.760) 2182
47.17 24:27 0.00 1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf7+ Kh8 4.Qe8+ Kg7 5.Qe4 Kf7 6.Qh7+ Ke8 7.Qh8+ Ke7 8.Qh7+ Ke6 9.Qg6+ Kd5 10.Qd3+ Kc5 11.Qf5+ Kb4 12.Qg4+ Kb5 13.Qf5+ Kb6 14.Qg6+ (3.313.775.411) 2258
best move: Qf6-e7 time: 24:27.609 min n/s: 2.258.781 nodes: 3.313.775.411
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bob
Posts: 20943
Joined: Mon Feb 27, 2006 7:30 pm
Location: Birmingham, AL

Re: Mate in 17 revisited

Post by bob »

kgburcham wrote:[d] 6k1/8/5Q2/8/8/8/3p1pp1/3Kbrrb w - -

Children restarted.
Deep Rybka 4 x64 (2048 MB)

33.01 0:02 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qe7 Kh8 4.Qc7 Kg8 5.Qe7 Kh8 6.Qc7 Kg8 7.Qe7 Kh8 8.Qc7 Kg8 9.Qe7 Kh8 10.Qc7 Kg8 11.Qe7 Kh8 12.Qc7 Kg8 13.Qe7 Kh8 14.Qc7 (3.613.464) 1764
34.01 0:02 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qe7 Kh8 4.Qc7 Kg8 5.Qe7 Kh8 6.Qc7 Kg8 7.Qe7 Kh8 8.Qc7 Kg8 9.Qe7 Kh8 10.Qc7 Kg8 11.Qe7 Kh8 12.Qc7 Kg8 13.Qe7 Kh8 14.Qc7 (4.977.460) 1851
35.01 0:03 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg6 5.Qe6+ Kg7 6.Qe5+ Kg6 7.Qe6+ Kg7 8.Qe5+ Kg6 9.Qe6+ Kg7 10.Qe5+ Kg6 11.Qe6+ Kg7 12.Qe5+ Kg6 13.Qe6+ Kg7 14.Qe5+ (7.560.950) 1912
36.01 0:06 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg6 5.Qe6+ Kg7 6.Qe5+ Kg6 7.Qe6+ Kg7 8.Qe5+ Kg6 9.Qe6+ Kg7 10.Qe5+ Kg6 11.Qe6+ Kg7 12.Qe5+ Kg6 13.Qe6+ Kg7 14.Qe5+ (12.655.031) 2004
37.01 0:07 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg6 5.Qe6+ Kg7 6.Qe5+ Kg6 7.Qe6+ Kg7 8.Qe5+ Kg6 9.Qe6+ Kg7 10.Qe5+ Kg6 11.Qe6+ Kg7 12.Qe5+ Kg6 13.Qe6+ Kg7 14.Qe5+ (15.919.731) 2033
38.01 0:10 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg6 5.Qd6+ Kf7 6.Qe5 Kg8 7.Qf6 Kh7 8.Qf7+ Kh8 9.Qf6+ Kh7 10.Qf7+ Kh8 11.Qf6+ Kh7 12.Qf7+ Kh8 13.Qf6+ Kh7 14.Qf7+ (21.467.896) 2014
39.01 0:15 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kf7 4.Qd7+ Kg8 5.Qf5 Kh8 6.Qd7 Kg8 7.Qf5 Kh8 8.Qd7 Kg8 9.Qf5 Kh8 10.Qd7 Kg8 11.Qf5 Kh8 12.Qd7 Kg8 13.Qf5 Kh8 14.Qd7 (30.309.804) 2003
40.01 0:20 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kf7 4.Qd7+ Kg6 5.Qd3+ Kf6 6.Qd6+ Kf7 7.Qe5 Kg8 8.Qf6 Kh7 9.Qf7+ Kh8 10.Qf6+ Kh7 11.Qf7+ Kh8 12.Qf6+ Kh7 13.Qf7+ Kh8 14.Qf6+ (41.767.548) 1999
41.01 0:29 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg6 5.Qe6+ Kg7 6.Qe7+ Kg6 7.Qe6+ Kg7 8.Qe7+ Kg6 9.Qe6+ Kg7 10.Qe7+ Kg6 11.Qe6+ Kg7 12.Qe7+ Kg6 13.Qe6+ Kg7 14.Qe7+ (58.220.590) 1986
42.01 0:42 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg6 5.Qe8+ Kg7 6.Qe7+ Kg6 7.Qe8+ Kg7 8.Qe7+ Kg6 9.Qe8+ Kg7 10.Qe7+ Kg6 11.Qe8+ Kg7 12.Qe7+ Kg6 13.Qe8+ Kg7 14.Qe7+ (84.381.183) 1993
43.01 1:08 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qe7+ Kg8 5.Qe8+ Kg7 6.Qe5+ Kg6 7.Qe6+ Kh7 8.Qe7+ Kg6 9.Qd8 Kf5 10.Qf8+ Ke6 11.Qc8+ Kd6 12.Qd8+ Kc6 13.Qf6+ Kb7 14.Qd6 (134.481.190) 1965
44.01 1:51 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qd8+ Kg7 4.Qd7+ Kg6 5.Qg4+ Kf6 6.Qg8 Kf5 7.Qd8 Ke6 8.Qa5 Kf7 9.Qc7+ Ke6 10.Qc8+ Kd6 11.Qd8+ Kc6 12.Qc8+ Kd6 13.Qd8+ Kc6 14.Qc8+ (219.202.735) 1973
45.01 3:40 0.00 1.Qe7 Kh8 2.Qc7 Kg8 3.Qc4+ Kg7 4.Qe6 Kh8 5.Qf6+ Kg8 (462.200.348) 2091
46.01 7:26 0.00 1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf5+ Kg7 4.Qg4+ Kf7 5.Qf4+ Ke6 6.Qc4+ Ke5 7.Qc7+ Kd4 8.Qd8+ Kc4 9.Qg8+ Kb5 10.Qd5+ Kb4 11.Qc6 Ka3 12.Qa8+ Kb3 13.Qc6 Kb4 14.Qd5 (947.847.236) 2122
47.01 20:33 0.00 1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf7+ Kh8 4.Qe8+ Kg7 5.Qe4 Kf7 6.Qh7+ Ke8 7.Qh8+ Ke7 8.Qh7+ Ke6 9.Qg6+ Kd5 10.Qd3+ Kc5 11.Qf5+ Kb4 12.Qg4+ Kb5 13.Qf5+ Kb6 14.Qg6+ (2.691.800.760) 2182
47.17 24:27 0.00 1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf7+ Kh8 4.Qe8+ Kg7 5.Qe4 Kf7 6.Qh7+ Ke8 7.Qh8+ Ke7 8.Qh7+ Ke6 9.Qg6+ Kd5 10.Qd3+ Kc5 11.Qf5+ Kb4 12.Qg4+ Kb5 13.Qf5+ Kb6 14.Qg6+ (3.313.775.411) 2258
best move: Qf6-e7 time: 24:27.609 min n/s: 2.258.781 nodes: 3.313.775.411
Too many pieces causes null-move failure since the mate is based on zugzwang.
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Uri Blass
Posts: 11207
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Mate in 17 revisited

Post by Uri Blass »

I stopped working on Movei but
Movei can also see mate score(not with the correct number of moves but movei is not good in counting the number of moves because of wrong use of hash)

I believe that there are more programs that can see the mate and you simply did not test most programs(the position should be easy for chess programs because these type of positions when the opponent has not many legal moves is exactly the positions that I do not use null move pruning and I do not believe that there are no more programmers who use the same idea).

New game
[d]6k1/8/5Q2/8/8/8/3p1pp1/3Kbrrb w - - 0 1

Analysis by Movei00_8_438:

1.Qf6-e7
-+ (-13.67) Depth: 1 00:00:00
1.Qf6-e7
-+ (-13.37) Depth: 2 00:00:00
1.Qf6-e7
-+ (-12.67) Depth: 2 00:00:00
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 2 00:00:00
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 2 00:00:00
1.Qf6-e7
³ (-0.30) Depth: 3 00:00:00
1.Qf6-e7
µ (-1.00) Depth: 3 00:00:00
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 3 00:00:00
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 3 00:00:00
1.Qf6-e7
³ (-0.30) Depth: 4 00:00:01
1.Qf6-e7
µ (-1.00) Depth: 4 00:00:01
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 4 00:00:01
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 4 00:00:01
1.Qf6-e7
³ (-0.30) Depth: 5 00:00:01
1.Qf6-e7
µ (-1.00) Depth: 5 00:00:01
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 5 00:00:01
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 5 00:00:01
1.Qf6-e7
³ (-0.30) Depth: 6 00:00:01 3kN
1.Qf6-e7
µ (-1.00) Depth: 6 00:00:01 3kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 6 00:00:01 3kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 6 00:00:01 4kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 7 00:00:02 5kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 7 00:00:02 8kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 8 00:00:02 11kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 8 00:00:02 15kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 9 00:00:02 19kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 9 00:00:02 26kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 10 00:00:03 33kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 10 00:00:03 44kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 11 00:00:03 55kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 11 00:00:03 69kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 12 00:00:03 81kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 12 00:00:03 102kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 13 00:00:04 118kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 13 00:00:04 153kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 14 00:00:04 180kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 14 00:00:06 237kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 15 00:00:06 280kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 15 00:00:08 381kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 16 00:00:08 454kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 16 00:00:09 641kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 17 00:00:10 737kN
1.Qf6-e7 Kg8-h8 2.Qe7-f7
= (0.00) Depth: 17 00:00:12 1139kN
1.Qf6-e7
² (0.30) Depth: 18 00:00:12 1154kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6
² (0.30) Depth: 18 00:00:12 1287kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6
² (0.30) Depth: 18 00:00:14 1833kN
1.Qf6-e7
= (0.00) Depth: 19 00:00:14 3452kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8
² (0.30) Depth: 19 00:00:14 3787kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8
² (0.30) Depth: 19 00:00:16 4843kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8
² (0.30) Depth: 20 00:00:16 5061kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8
² (0.30) Depth: 20 00:00:18 6342kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8 Kh7-g6 7.Qf8-e7 Kg6-h6 8.Qe7-f7
² (0.30) Depth: 21 00:00:19 6670kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8 Kh7-g6 7.Qf8-e7 Kg6-h6 8.Qe7-f7
² (0.30) Depth: 21 00:00:25 8680kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8 Kh7-g6 7.Qf8-e7 Kg6-h6 8.Qe7-f7
² (0.30) Depth: 22 00:00:25 9119kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8 Kh7-g6 7.Qf8-e7 Kg6-h6 8.Qe7-f7
² (0.30) Depth: 22 00:00:32 12129kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8 Kh7-g6 7.Qf8-e7 Kg6-h6 8.Qe7-f7
² (0.31) Depth: 23 00:00:33 12920kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8 Kh7-g6 7.Qf8-e7 Kg6-h6 8.Qe7-f7
² (0.31) Depth: 23 00:00:38 16814kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8 Kh7-g6 7.Qf8-e7 Kg6-h6 8.Qe7-f7 Kh6-g5 9.Qf7-e6 Kg5-f4 10.Qe6-d5 Kf4-g4 11.Qd5-e5 Kg4-h4 12.Qe5-f4+ Kh4-h5 13.Qf4-g3 Kh5-h6
² (0.60) Depth: 24 00:00:39 17610kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8 Kh7-g6 7.Qf8-e7 Kg6-h6 8.Qe7-f7 Kh6-g5 9.Qf7-e6 Kg5-f4 10.Qe6-d5 Kf4-g4 11.Qd5-e5 Kg4-h4 12.Qe5-f4+ Kh4-h5 13.Qf4-g3 Kh5-h6
² (0.60) Depth: 24 00:00:50 22820kN
1.Qf6-e7
± (0.90) Depth: 25 00:00:50 22840kN
1.Qf6-e7
+- (1.60) Depth: 25 00:00:50 22840kN
1.Qf6-e7 Kg8-h8 2.Qe7-f8+ Kh8-h7 3.Qf8-f7+ Kh7-h8 4.Qf7-e7 Kh8-g8 5.Qe7-f6 Kg8-h7 6.Qf6-f8 Kh7-g6 7.Qf8-e7 Kg6-h6 8.Qe7-f7 Kh6-g5 9.Qf7-e6 Kg5-f4 10.Qe6-d5 Kf4-g4 11.Qd5-e5 Kg4-h4 12.Qe5-f4+ Kh4-h3 13.Qf4-g5 Kh3-h2 14.Qg5-h4#
+- (#14) Depth: 25 00:00:58 26200kN

(, 08.07.2010)
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User avatar
Graham Banks
Posts: 45798
Joined: Sun Feb 26, 2006 10:52 am
Location: Auckland, NZ

Re: Mate in 17 revisited

Post by Graham Banks »

Uri Blass wrote:I stopped working on Movei........
Hopefully you'll regain the motivation to develop it further at some stage. :P
gbanksnz at gmail.com
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mhalstern
Posts: 484
Joined: Wed Nov 18, 2009 1:09 am

Re: Mate in 17 revisited

Post by mhalstern »

Zappa Mexico II gets the mate in 4 instantly:

New game
6Q1/8/8/7k/8/8/3p1pp1/3Kbrrb w - - 0 1

Analysis by Zappa Mexico II 64:

1.Qg7 Kh4 2.Qg6 Kh3 3.Qg5 Kh2 4.Qh4#
+- (#4) Depth: 13/23 00:00:00 883kN
1.Qg7 Kh4 2.Qg6 Kh3 3.Qg5 Kh2 4.Qh4#
+- (#4) Depth: 13/23 00:00:00 886kN
1.Qg7 Kh4 2.Qg6 Kh3 3.Qg5 Kh2 4.Qh4#
+- (#4) Depth: 14/25 00:00:00 3150kN
1.Qg7 Kh4 2.Qg6 Kh3 3.Qg5 Kh2 4.Qh4#
+- (#4) Depth: 14/25 00:00:00 3155kN
1.Qg7 Kh4 2.Qg6 Kh3 3.Qg5 Kh2 4.Qh4#
+- (#4) Depth: 15/30 00:00:02 13373kN
1.Qg7 Kh4 2.Qg6 Kh3 3.Qg5 Kh2 4.Qh4#
+- (#4) Depth: 15/30 00:00:02 13378kN
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mhalstern
Posts: 484
Joined: Wed Nov 18, 2009 1:09 am

Re: Mate in 17 revisited

Post by mhalstern »

After I change some settings, Zappa shows a mate in 18, from the starting position:

Settings:

Disable Null move
Disable Futility Prining
Disable Aggressive Futility Pruning
Enable Mate Extensions

New game
6k1/8/5Q2/8/8/8/3p1pp1/3Kbrrb w - - 0 1

Analysis by Zappa Mexico II 64:

1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 13/39 00:00:00 1973kN
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 13/39 00:00:00 4019kN
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 14/39 00:00:01 4747kN
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 14/39 00:00:01 6693kN, tb=2
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 15/39 00:00:01 8358kN, tb=4
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 15/43 00:00:10 57672kN, tb=11
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 16/43 00:00:14 80636kN, tb=24
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 16/43 00:00:19 105mN, tb=64
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 17/43 00:00:21 113mN, tb=86
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 17/53 00:00:29 157mN, tb=149
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 18/55 00:00:31 167mN, tb=197
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 18/55 00:00:44 231mN, tb=337
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 19/57 00:00:50 262mN, tb=444
1.Qe7 Kh8 2.Qf7
= (0.00) Depth: 19/57 00:01:11 373mN, tb=714
1.Qe7 Kh8 2.Qg5 Kh7 3.Qe5 Kg8 4.Ke2 d1Q+ 5.Ke3 Qc1+ 6.Ke4 Qb1+ 7.Kf3 Qb7+ 8.Kg4 Qc8+ 9.Kh4 Qd8+ 10.Kh3 Qc8+ 11.Kh2 Bd2 12.Qg3+ Kf7 13.Qf3+ Ke6 14.Qe2+ Kf5 15.Qh5+ Bg5 16.Qf7+ Ke4 17.Qg6+ Ke3 18.Qb6+ Ke2
+- (#18) Depth: 20/59 00:01:24 453mN, tb=1069
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mhalstern
Posts: 484
Joined: Wed Nov 18, 2009 1:09 am

Re: Mate in 17 revisited

Post by mhalstern »

Fritz 5.32 anounces a mate in 9, but does not show the line!! Then, althought the clock keeps ticking, it stops thinking, as evidenced by tadk manager.

New game
6k1/8/5Q2/8/8/8/3p1pp1/3Kbrrb w - - 0 1

Analysis by Fritz 5.32:

1.Qe7
= (0.00) Depth: 4/6 00:00:00 3kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 5/10 00:00:00 9kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 5/10 00:00:00 9kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 5/10 00:00:00 9kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 5/10 00:00:00 9kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 5/10 00:00:00 9kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 6/10 00:00:00 25kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 6/10 00:00:00 25kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 6/10 00:00:00 25kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 7/13 00:00:00 61kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 8/15 00:00:00 139kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 9/16 00:00:00 304kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 10/18 00:00:00 651kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 11/19 00:00:00 1373kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 12/19 00:00:00 2845kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 13/24 00:00:00 5859kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 14/25 00:00:01 11868kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 15/30 00:00:03 23350kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 16/27 00:00:05 45292kN
1.Qe7 Kh8 2.Qf8+ Kh7 3.Qf6
= (0.00) Depth: 17/28 00:00:10 85047kN
1.Qe7
+- (#9) Depth: 18/33 00:00:22 170mN
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User avatar
David Dahlem
Posts: 900
Joined: Wed Mar 08, 2006 9:06 pm

Re: Mate in 17 revisited

Post by David Dahlem »

[quote="Michael Diosi"]Hi all,

A problem by Joseph Halumbriek (Mate in in 17).
[d]6k1/8/5Q2/8/8/8/3p1pp1/3Kbrrb w - - 0 1

For what it's worth, here is the output of Tinapa 1.01 (Stockfish 1.8 mod by Chris Formula)
http://www.open-chess.org/viewtopic.php?f=7&t=406

Tinapa 1.01:

49 00:57 105.491.915 1.832.665 0.00 Qf6e7 Kg8h8 Qe7f7
50+ 01:08 125.700.273 1.830.044 +M18 Qf6e7 Kg8h8
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Mate in 17 revisited

Post by zullil »

Michael Diosi wrote:Hi all,

A problem by Joseph Halumbriek (Mate in in 17).
[d]6k1/8/5Q2/8/8/8/3p1pp1/3Kbrrb w - - 0 1
Stockfish-1.8.0 (8 threads) sees mate in 7. :shock:

About to run it again to see if this bug is reproducible.

Code: Select all

Searching: 6k1/8/5Q2/8/8/8/3p1pp1/3Kbrrb w - -
infinite: 1 ponder: 0 time: 0 increment: 0 moves to go: 0
 2    -12.53   00:01      106 Qd4 Kf7 
 2    -11.11   00:01      152 Qe7 Kh8 
 3    -11.07   00:01      434 Qe7 Kh8 Qd7 
 4     +0.00   00:01      848 Qe7 Kh8 Qf7 
 5     +0.00   00:01      939 Qe7 Kh8 Qf7 
 6     +0.00   00:01     1119 Qe7 Kh8 Qf7 
 7     +0.00   00:01     1544 Qe7 Kh8 Qf7 
 8     +0.00   00:01     2630 Qe7 Kh8 Qf7 
 9     +0.00   00:01     5234 Qe7 Kh8 Qf7 
10     +0.00   00:01     9245 Qe7 Kh8 Qf7 
11     +0.00   00:01    16832 Qe7 Kh8 Qf7 
12     +0.00   00:01    28849 Qe7 Kh8 Qf7 
13     +0.00   00:01    44185 Qe7 Kh8 Qf7 
14     +0.00   00:01    62143 Qe7 Kh8 Qf7 
15     +0.00   00:01    91732 Qe7 Kh8 Qf7 
16     +0.00   00:01   124855 Qe7 Kh8 Qf7 
17     +0.00   00:01   181671 Qe7 Kh8 Qf7 
18     +0.00   00:01   239275 Qe7 Kh8 Qf7 
19     +0.00   00:01   309926 Qe7 Kh8 Qf7 
20     +0.00   00:01   384908 Qe7 Kh8 Qf7 
21     +0.00   00:01   451385 Qe7 Kh8 Qf7 
22     +0.00   00:01   553040 Qe7 Kh8 Qf7 
23     +0.00   00:01   667345 Qe7 Kh8 Qf7 
24     +0.00   00:01   829014 Qe7 Kh8 Qf7 
25     +0.00   00:01    1046K Qe7 Kh8 Qf7 
26     +0.00   00:01    1258K Qe7 Kh8 Qf7 
27     +0.00   00:01    1496K Qe7 Kh8 Qf7 
28     +0.00   00:01    2033K Qe7 Kh8 Qf7 
29     +0.00   00:01    2481K Qe7 Kh8 Qf7 
30     +0.00   00:01    3191K Qe7 Kh8 Qf7 
31     +0.00   00:02    3979K Qe7 Kh8 Qf7 
32     +0.00   00:02    4523K Qe7 Kh8 Qf7 
33     +0.00   00:02    5562K Qe7 Kh8 Qf7 
34     +0.00   00:02    6161K Qe7 Kh8 Qf7 
35     +0.00   00:02    7360K Qe7 Kh8 Qf7 
36     +0.00   00:02    9067K Qe7 Kh8 Qf7 
37     +0.00   00:03   10988K Qe7 Kh8 Qf7 
38  >    #21   00:03   13074K Qe7 Kh8 
38  >    #21   00:03   13075K Qe7 Kh8 
38  >    #21   00:03   13075K Qe7 Kh8 
38  >    #21   00:03   13075K Qe7 Kh8 
38  >    #21   00:03   13075K Qe7 Kh8 
38  >    #21   00:03   13075K Qe7 Kh8 
38  >    #21   00:03   13075K Qe7 Kh8 
38  >    #21   00:03   13075K Qe7 Kh8 
38  >    #21   00:03   13075K Qe7 Kh8 
38  >    #21   00:03   13075K Qe7 Kh8 
38  >    #21   00:03   13075K Qe7 Kh8 
38        #8   30:40   12646M Qe7 Kh8 Qf8+ Kh7 Qf7+ Kh6 Qg8 
39        #8   30:43   12663M Qe7 Kh8 Qf8+ Kh7 Qf7+ Kh6 Qg8 Kh5 Qg7 Kh4 Qg6 Kh3 
                              Qg5 Kh2 
39        #7   30:46   12677M Qe5 Kh7 Qg3 Kh6 Qg8 Kh5 Qg7 Kh4 Qg6 Kh3 Qg5 Kh2 
40        #7   30:46   12678M Qe5 Kh7 Qg3 Kh6 Qg8 Kh5 Qg7 Kh4 Qg6 Kh3 Qg5 Kh2 
41        #7   30:47   12681M Qe5 Kh7 Qg3 Kh6 Qg8 Kh5 Qg7 Kh4 Qg6 
42        #7   30:48   12684M Qe5 Kh7 Qg3 Kh6 Qg8 Kh5 Qg7 Kh4 Qg6 Kh3 Qg5 Kh2 
43        #7   30:48   12687M Qe5 Kh7 Qg3 Kh6 Qg8 Kh5 Qg7 Kh4 Qg6 Kh3 Qg5 Kh2 
44        #7   30:49   12691M Qe5 Kh7 Qg3 Kh6 

Nodes: 13784139887
Nodes/second: 6939553
Best move: Qe5
Ponder move: Kh7
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