Hi,
[D]8/3p1p1p/3K1P2/4P3/1p6/1Pp5/PbP2ppp/1R1N1bqk w - -
Mate in 29
by Herbert Grasemann
Die Schwalbe 1964
Breuer Memorial
3rd prize
Michael
http://www.playwitharena.com
Any engine can solve this mate in 29 by now ?
Moderators: hgm, Rebel, chrisw
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The mate in 29 by Herbert Grasemann
Hi,
[D]8/3p1p1p/3K1P2/4P3/1p6/1Pp5/PbP2ppp/1R1N1bqk w - -
Mate in 29
by Herbert Grasemann
Die Schwalbe 1964
Breuer Memorial
3rd prize
so any change here, can Stockfish do it by now?
Michael Diosi
http://www.playwitharena.com
[D]8/3p1p1p/3K1P2/4P3/1p6/1Pp5/PbP2ppp/1R1N1bqk w - -
Mate in 29
by Herbert Grasemann
Die Schwalbe 1964
Breuer Memorial
3rd prize
so any change here, can Stockfish do it by now?
Michael Diosi
http://www.playwitharena.com
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- Joined: Fri Nov 26, 2010 2:00 pm
- Location: Czech Republic
- Full name: Martin Sedlak
Re: The mate in 29 by Herbert Grasemann
Black queen is particularly well placed.
Can you get this position in a real game?
Can you get this position in a real game?
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Re: The mate in 29 by Herbert Grasemann
Can dedicated mate solvers solve this position? Chest maybe?
What's the mainline?
What's the mainline?
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Re: The mate in 29 by Herbert Grasemann
Hi,
Chest:No
Alybadix:No
Gustav:No
Popeye:No
WinChloe: No
VKSach:No
Stockfish Matefinder maybe? But my PC is too slow *wink*
Michael Diosi
http://www.pleywitharena.com
Chest:No
Alybadix:No
Gustav:No
Popeye:No
WinChloe: No
VKSach:No
Stockfish Matefinder maybe? But my PC is too slow *wink*
Michael Diosi
http://www.pleywitharena.com
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- Full name: Martin Sedlak
Re: The mate in 29 by Herbert Grasemann
Hmm, the only moves that don't outright lose are e6, Kc5, Kc7, Ke7
So it has to be one of them.
So it has to be one of them.
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Re: The mate in 29 by Herbert Grasemann
Hi,
1.Kc7 Ba3 2.Kb8 Bb2 3.Ka8 Ba3 4.Ka7 Bb2 5.Kb6 Ba3 6.Kc5 h6 7.Kd6 Bb2 8.Ke7 Ba3 9.Kf8 Bb2 10.Kg7 h5 11.Kf8 Ba3 12.Ke7 Bb2 13.Kd6 Ba3 14.Kc5 h4 15.Kd4 Bb2 16.Ke3 Ba3 17.Kf4 Bb2 18.Kg5 Ba3 19.K×h4 Bb2 20.Kh3 Ba3 21.Kg3 Bb2 22.Kf4 Ba3 23.Ke3 Bb2 24.Kd4 Ba3 25.Kc5 d6+ 26.e×d6 Bb2 27.K×b4 Ba3+ 28.K×a3 B~ 29.N×f2‡
~=wherever
Michael Diosi
http://www.playwitharena.com
1.Kc7 Ba3 2.Kb8 Bb2 3.Ka8 Ba3 4.Ka7 Bb2 5.Kb6 Ba3 6.Kc5 h6 7.Kd6 Bb2 8.Ke7 Ba3 9.Kf8 Bb2 10.Kg7 h5 11.Kf8 Ba3 12.Ke7 Bb2 13.Kd6 Ba3 14.Kc5 h4 15.Kd4 Bb2 16.Ke3 Ba3 17.Kf4 Bb2 18.Kg5 Ba3 19.K×h4 Bb2 20.Kh3 Ba3 21.Kg3 Bb2 22.Kf4 Ba3 23.Ke3 Bb2 24.Kd4 Ba3 25.Kc5 d6+ 26.e×d6 Bb2 27.K×b4 Ba3+ 28.K×a3 B~ 29.N×f2‡
~=wherever
Michael Diosi
http://www.playwitharena.com
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Re: The mate in 29 by Herbert Grasemann
Your PC is too slow? No PC is too slow for Stockfish. It even runs on a Raspberry Pi I think, assuming it can handle the C++11 code, or anything that can compile C++11. Okay, I suppose that is not yet as widespread as C itself. Here is almost latest pre Stockfish 7 beta, slightly modified, but 32 bit, and on a slow Q6700, from 2008
8/3p1p1p/3K1P2/4P3/1p6/1Pp5/PbP2ppp/1R1N1bqk w - -
Engine: Rainbow Serpent SF20151218_001 based on Sf20150919_004 MOD MP (Q6700, 4X2672 MHz, 512 MB, 32 bit)
Most recent changes; Stockfish sourcecode (latest, except the last mobility change), but added code per 29-10:
Nullmove also in simple endgames,
Oldstyle verification of nullmove, so no longer with Jörg's changes.
Retains probcutlike treshold and this increased to 200 per pawn.
Simple endgames always verified (nullmove).
Keeping Jörg's 3 fold repetition when in analysis mode.
Singular extensions combined here again with reductions for nonsingular moves, so not replaced with only the reductions.
by Tord Romstad, Marco Costalba, Joona Kiiski, Gary Linscott
35/25 0:01 0.00 1.Kc5 Ba3 2.Kd4 h6 3.Kc5 h5 4.Kd4 Bb2
5.Kc5 Ba3 (3.978.435) 3771
36/25 0:01 0.00 1.Kc5 Ba3 2.Kd4 h6 3.Kc5 h5 4.Kd4 Bb2
5.Kc5 Ba3 (4.995.753) 3770
37/25 0:01 0.00 1.Kc5 Ba3 2.Kd4 h6 3.Kc5 h5 4.Kd4 Bb2
5.Kc5 Ba3 (5.372.745) 3767
38/25 0:01 0.00 1.Kc5 Ba3 2.Kd4 h6 3.Kc5 h5 4.Kd4 Bb2
5.Kc5 Ba3 (6.774.057) 3752
39/25 0:02 0.00 1.Kc5 Ba3 2.Kd4 h6 3.Kc5 h5 4.Kd4 Bb2
5.Kc5 Ba3 (8.767.142) 3730
40/25 0:04 0.00 1.Kc5 Ba3 2.Kd4 h6 3.Kc5 h5 4.Kd4 Bb2
5.Kc5 Ba3 (15.185.703) 3725
.
.
.
56/25 10:54 0.00 1.Kc5 Ba3 2.Kd4 Bb2 3.Kc5 (2.634.209.225) 4025
57/25 12:26 0.00 1.Kc5 Ba3 2.Kd4 Bb2 3.Kc5 (3.006.997.034) 4029
58/25 12:57 0.00 1.Kc5 Ba3 2.Kd4 Bb2 3.Kc5 (3.128.965.224) 4024
59/25 17:58 +0.03++ 1.Kc7 (4.355.049.841) 4039
59/57 19:02 +0.06++ 1.Kc7 (4.630.278.671) 4053
59/57 27:26 +0.20++ 1.Kc7 (6.799.519.655) 4128
59/57 27:37 +0.29++ 1.Kc7 (6.847.170.036) 4129
59/57 29:31 +0.42++ 1.Kc7 (7.350.504.559) 4150
59/57 30:59 +0.60++ 1.Kc7 (7.751.094.892) 4168
59/57 33:23 +0.84++ 1.Kc7 (8.398.284.638) 4192
59/57 35:33 +1.15++ 1.Kc7 (9.019.655.295) 4227
59/57 36:44 +1.58++ 1.Kc7 (9.329.642.380) 4232
59/57 38:39 +2.38++ 1.Kc7 (9.806.367.420) 4228
59/57 40:59 +1.61-- 1.Kc7 Ba3 (10.403.547.180) 4229
59/57 41:11 +2.37++ 1.Kc7 (10.451.585.528) 4229
8/3p1p1p/3K1P2/4P3/1p6/1Pp5/PbP2ppp/1R1N1bqk w - -
Engine: Rainbow Serpent SF20151218_001 based on Sf20150919_004 MOD MP (Q6700, 4X2672 MHz, 512 MB, 32 bit)
Most recent changes; Stockfish sourcecode (latest, except the last mobility change), but added code per 29-10:
Nullmove also in simple endgames,
Oldstyle verification of nullmove, so no longer with Jörg's changes.
Retains probcutlike treshold and this increased to 200 per pawn.
Simple endgames always verified (nullmove).
Keeping Jörg's 3 fold repetition when in analysis mode.
Singular extensions combined here again with reductions for nonsingular moves, so not replaced with only the reductions.
by Tord Romstad, Marco Costalba, Joona Kiiski, Gary Linscott
35/25 0:01 0.00 1.Kc5 Ba3 2.Kd4 h6 3.Kc5 h5 4.Kd4 Bb2
5.Kc5 Ba3 (3.978.435) 3771
36/25 0:01 0.00 1.Kc5 Ba3 2.Kd4 h6 3.Kc5 h5 4.Kd4 Bb2
5.Kc5 Ba3 (4.995.753) 3770
37/25 0:01 0.00 1.Kc5 Ba3 2.Kd4 h6 3.Kc5 h5 4.Kd4 Bb2
5.Kc5 Ba3 (5.372.745) 3767
38/25 0:01 0.00 1.Kc5 Ba3 2.Kd4 h6 3.Kc5 h5 4.Kd4 Bb2
5.Kc5 Ba3 (6.774.057) 3752
39/25 0:02 0.00 1.Kc5 Ba3 2.Kd4 h6 3.Kc5 h5 4.Kd4 Bb2
5.Kc5 Ba3 (8.767.142) 3730
40/25 0:04 0.00 1.Kc5 Ba3 2.Kd4 h6 3.Kc5 h5 4.Kd4 Bb2
5.Kc5 Ba3 (15.185.703) 3725
.
.
.
56/25 10:54 0.00 1.Kc5 Ba3 2.Kd4 Bb2 3.Kc5 (2.634.209.225) 4025
57/25 12:26 0.00 1.Kc5 Ba3 2.Kd4 Bb2 3.Kc5 (3.006.997.034) 4029
58/25 12:57 0.00 1.Kc5 Ba3 2.Kd4 Bb2 3.Kc5 (3.128.965.224) 4024
59/25 17:58 +0.03++ 1.Kc7 (4.355.049.841) 4039
59/57 19:02 +0.06++ 1.Kc7 (4.630.278.671) 4053
59/57 27:26 +0.20++ 1.Kc7 (6.799.519.655) 4128
59/57 27:37 +0.29++ 1.Kc7 (6.847.170.036) 4129
59/57 29:31 +0.42++ 1.Kc7 (7.350.504.559) 4150
59/57 30:59 +0.60++ 1.Kc7 (7.751.094.892) 4168
59/57 33:23 +0.84++ 1.Kc7 (8.398.284.638) 4192
59/57 35:33 +1.15++ 1.Kc7 (9.019.655.295) 4227
59/57 36:44 +1.58++ 1.Kc7 (9.329.642.380) 4232
59/57 38:39 +2.38++ 1.Kc7 (9.806.367.420) 4228
59/57 40:59 +1.61-- 1.Kc7 Ba3 (10.403.547.180) 4229
59/57 41:11 +2.37++ 1.Kc7 (10.451.585.528) 4229
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
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Re: The mate in 29 by Herbert Grasemann
hI;
I was waitining for the mate score as the problem is that in the middle of the solution the trees explodes and programs don't really have a clue what is going on.
So yes my PC is too slow...
Michael Diosi
http://www.pleywitharena.com
I was waitining for the mate score as the problem is that in the middle of the solution the trees explodes and programs don't really have a clue what is going on.
So yes my PC is too slow...
Michael Diosi
http://www.pleywitharena.com