any UCI pure brute-force engines?

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Karol Majewski
Posts: 106
Joined: Sat Jul 09, 2011 4:18 pm

any UCI pure brute-force engines?

Post by Karol Majewski »

[D]8/1pN4r/5pkp/8/5K1p/2P4N/P3Bn2/8 w - -[/D]

Bh5+ wins. None of top engines could solve it. I guess that search techniques like null_move_pruning or futility_pruning are responsible for that blindness. Is pure brute_force the only chance to solve it? And if so, what UCI compatibile engine could you recommend to solve this position?
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Dicaste
Posts: 142
Joined: Mon Apr 16, 2012 7:23 pm
Location: Istanbul, TURKEY

Re: any UCI pure brute-force engines?

Post by Dicaste »

Karol Majewski wrote:[D]8/1pN4r/5pkp/8/5K1p/2P4N/P3Bn2/8 w - -[/D]

Bh5+ wins. None of top engines could solve it. I guess that search techniques like null_move_pruning or futility_pruning are responsible for that blindness. Is pure brute_force the only chance to solve it? And if so, what UCI compatibile engine could you recommend to solve this position?
Sting solves this position as i remember.
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Karol Majewski
Posts: 106
Joined: Sat Jul 09, 2011 4:18 pm

Re: any UCI pure brute-force engines?

Post by Karol Majewski »

Not even Sting.


8/1pN4r/5pkp/8/5K1p/2P4N/P3Bn2/8 w - -

Engine: Sting SF 4.7 (4096 MB)
by Tord Romstad, Marco Costalba, Joona Kii

17/29 0:01 -0.92 1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 Rd7
4.Kg4 Rd4+ 5.Kf3 b6 6.a4 h5 7.Ke3 Rd7
8.Nh3 (1.527.972) 1097

18.23 0:02 -1.05-- 1.Nxf2 (2.350.162) 1109

18/30 0:02 -0.88 1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 Rd7
4.Kg4 Rd4+ 5.Kf3 b6 6.a4 h5 7.Ke3 Rd8
8.Be4 Kh6 9.Bf3 Kg6 (3.317.470) 1124

19.23 0:03 -1.01-- 1.Nxf2 (3.847.718) 1123

19.23 0:06 -1.13-- 1.Nxf2 (7.193.568) 1127

19/46 0:12 -1.17 1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 Rd7
4.Be4 b6 5.Bd5 b5 6.Ke4 bxc4 7.Bxc4 Kg6
8.a4 f5+ 9.Ke3 Rc7 10.Bd3 Ra7 11.Bb5 (14.274.615) 1130

20/46 0:13 -1.17 1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 Rd7
4.Be4 b6 5.Bd5 b5 6.Ke4 bxc4 7.Bxc4 Kg6
8.a4 f5+ 9.Ke3 Rc7 10.Bd3 Ra7 11.Bb5 (14.956.307) 1130

21/46 0:14 -1.17 1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 Rd7
4.Be4 b6 5.Bd5 b5 6.Ke4 bxc4 7.Bxc4 Kg6
8.a4 f5+ 9.Ke3 Rc7 10.Bd3 Ra7 (16.883.138) 1131

22/46 0:17 -1.17 1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 Rd7
4.Be4 b6 5.Bd5 b5 6.Ke4 bxc4 7.Bxc4 Kg6
8.a4 f5+ 9.Ke3 Rc7 10.Bd3 Ra7 (20.150.991) 1130

23/46 0:24 -1.17 1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 Rd7
4.Be4 b6 5.Bd5 b5 6.Ke4 bxc4 7.Bxc4 Kg6
8.a4 f5+ 9.Ke3 Rc7 10.Bd3 Ra7 11.Bb5 Kf6 (27.204.372) 1131

24.23 0:55 -1.25-- 1.Nxf2 (61.203.997) 1093

24.01 1:02 -1.09++ 1.Nxf2 (67.642.772) 1086

24/46 2:01 -1.29 1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 Rd7 4.a4 b6
5.Kf3 h5 (125.324.995) 1033

25.01 2:09 -1.17++ 1.Nxf2 (133.022.831) 1029

25.01 2:16 -1.05++ 1.Nxf2 (139.787.727) 1026

25/46 3:32 -1.13 1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 h5 4.a4 Rc5
5.Be2 Ra5 6.Bd1 Kg6 7.Bc2+ Kf7 (216.030.847) 1015

26.23 4:17 -1.25-- 1.Nxf2 (259.518.637) 1009

26.01 5:17 -1.01++ 1.Nxf2 (319.123.292) 1004

26/47 5:52 -1.13 1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 h5 4.a4 b6
5.Nh3 Kf7 6.Ke4 Re7+ (353.310.294) 1001

27.23 6:56 -1.21-- 1.Nxf2 (416.543.174) 999

27.23 9:39 -1.29-- 1.Nxf2 (575.525.928) 993

27/48 16:34 -1.33 1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 Rd7
4.Kg4 Rd4+ 5.Kf3 b6 6.Ke3 Rd8 7.Be4 Rd7
8.a4 Ra7 (984.173.648) 989

28.01 16:53 -1.21++ 1.Nxf2 (1.003.753.822) 989

28/48 18:39 -1.25 1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 Rd7 4.a4 b6
5.Kf3 Rd8 (1.106.796.624) 988

29.01 21:20 -1.13++ 1.Nxf2 (1.264.750.731) 988
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acase
Posts: 983
Joined: Wed Mar 15, 2006 1:14 am
Location: Columbus, Ohio USA
Full name: Andrew R Case

Re: any UCI pure brute-force engines?

Post by acase »

Karol Majewski wrote:[D]8/1pN4r/5pkp/8/5K1p/2P4N/P3Bn2/8 w - -[/D]

Bh5+ wins. None of top engines could solve it. I guess that search techniques like null_move_pruning or futility_pruning are responsible for that blindness. Is pure brute_force the only chance to solve it? And if so, what UCI compatibile engine could you recommend to solve this position?


This position was solved by Houdini 3 tactical in this thread:

http://talkchess.com/forum/viewtopic.ph ... 2p4n+p3bn2


Also it was stated in that thread that Disabling Null Move pruning in all Komodos solves the position also.
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: any UCI pure brute-force engines?

Post by zullil »

Karol Majewski wrote:[D]8/1pN4r/5pkp/8/5K1p/2P4N/P3Bn2/8 w - -[/D]

Bh5+ wins. None of top engines could solve it. I guess that search techniques like null_move_pruning or futility_pruning are responsible for that blindness. Is pure brute_force the only chance to solve it? And if so, what UCI compatibile engine could you recommend to solve this position?
The latest SF modified to disable various prunings and reductions finds the move in about 2.5 minutes (with 16 threads), though it doesn't yet see that taking the bishop allows mate-in-12:

Code: Select all

info depth 17 currmove h3f2 currmovenumber 1
info depth 17 currmove h3g5 currmovenumber 14
info depth 17 currmove e2d1 currmovenumber 18
info depth 17 seldepth 25 multipv 1 score cp -69 lowerbound nodes 5578449181 nps 36859157 tbhits 0 time 151345 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 seldepth 25 multipv 1 score cp -63 lowerbound nodes 5583225555 nps 36854190 tbhits 0 time 151495 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 seldepth 25 multipv 1 score cp -54 lowerbound nodes 5590936186 nps 36852786 tbhits 0 time 151710 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 seldepth 25 multipv 1 score cp -40 lowerbound nodes 5617490435 nps 36859206 tbhits 0 time 152404 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 seldepth 25 multipv 1 score cp -19 lowerbound nodes 5632597613 nps 36849286 tbhits 0 time 152855 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 seldepth 25 multipv 1 score cp 12 lowerbound nodes 5656738816 nps 36840438 tbhits 0 time 153547 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 seldepth 25 multipv 1 score cp 58 lowerbound nodes 5675921835 nps 36830327 tbhits 0 time 154110 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 currmove c7e8 currmovenumber 4
info depth 17 seldepth 25 multipv 1 score cp 128 nodes 6137315217 nps 36670023 tbhits 0 time 167366 pv e2h5 g6h5 f4f5 f2h3 c7d5 h7f7 c3c4 f7f8 a2a4 f8f7 c4c5 f7f8 a4a5 f8f7 a5a6 b7a6 c5c6 a6a5 c6c7 a5a4 c7c8q
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 134 lowerbound nodes 6179535554 nps 36651832 tbhits 0 time 168601 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 141 lowerbound nodes 6188727912 nps 36645278 tbhits 0 time 168882 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 150 lowerbound nodes 6197883253 nps 36645893 tbhits 0 time 169129 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 164 lowerbound nodes 6211433868 nps 36641736 tbhits 0 time 169518 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 185 lowerbound nodes 6229265208 nps 36639503 tbhits 0 time 170015 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 216 lowerbound nodes 6250197527 nps 36632911 tbhits 0 time 170617 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 263 lowerbound nodes 6279165554 nps 36618975 tbhits 0 time 171473 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 currmove h3f2 currmovenumber 2
info depth 18 seldepth 25 multipv 1 score cp 300 nodes 13717096574 nps 36716488 tbhits 0 time 373595 pv e2h5 g6h5 f4f5 f2h3 c7d5 h7f7 a2a4 f7f8 a4a5 f8f7 c3c4 f7f8 c4c5 f8f7 a5a6 b7a6 c5c6 a6a5 c6c7 a5a4 c7c8q a4a3 c8d8
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kgburcham
Posts: 2016
Joined: Sun Feb 17, 2008 4:19 pm

Re: any UCI pure brute-force engines?

Post by kgburcham »

[D] 8/1pN4r/5pkp/8/5K1p/2P4N/P3Bn2/8 w - -


8 processor(s) found, POPCNT available
NUMA configuration with 1 node(s), offset 0
8192 MB Hash
Nalimov 6 men EGTB available - 999 MB cache
Engine: Houdini 4 Pro x64 (8192 MB)
by Robert Houdart
25/52 0:17 -0.73-- 1.Nxf2 Rxc7 (412.944.878) 24131 TB:441
25/71 0:39 -0.58++ 1.Bh5+ (972.470.854) 24845 TB:115.836
25/71 0:39 -0.44++ 1.Bh5+ (982.494.753) 24841 TB:116.907
other best move - reduce depth to 22
22/71 0:39 -0.18++ 1.Bh5+ (983.792.125) 24833 TB:116.948
22/71 0:39 +0.50++ 1.Bh5+ (985.145.169) 24824 TB:117.055
22/71 0:48 +3.23 1.Bh5+ Kg7 2.Nxf2 Kh8 3.Nd5 Rg7 4.Bf3 Rg1 5.Nxf6 Kg7 6.Ne8+ Kf8 7.Nd6 Rf1 8.Ng4 Rc1 9.c4 h3 10.Kg3 Rc3 11.Ne5 Ke7 12.Nxb7 h2 13.Kxh2 Kf6 14.Ng4+ (1.195.172.426) 24586 TB:120.312
23/71 0:54 +3.36++ 1.Bh5+ (1.340.714.825) 24559 TB:120.804
23/71 1:00 +3.48 1.Bh5+ Kg7 2.Nxf2 Kh8 3.Nd5 Rg7 4.Bf3 Rg1 5.Nxf6 Kg7 6.Ne8+ Kf8 7.Nd6 Rf1 8.Ng4 Rc1 9.c4 h3 10.Kg3 Rc3 11.Ne5 Ke7 12.Nxb7 h2 13.Kxh2 Kf6 14.Ng4+ (1.474.902.042) 24510 TB:121.067
24/71 1:14 +3.62++ 1.Bh5+ (1.814.133.054) 24463 TB:121.968
24/71 1:58 +3.74 1.Bh5+ Kg7 2.Nxf2 Rh8 3.Ne8+ Kf8 4.Nxf6 Ke7 5.N2e4 Ra8 6.Nd5+ Kf8 7.Kg4 Rxa2 8.Kxh4 Ra5 9.Nef6 Ra1 10.Bf3 Rf1 11.Be4 Re1 12.Kh5 Kg7 13.c4 Kf7 14.Kxh6 (2.916.945.806) 24629 TB:126.890
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: any UCI pure brute-force engines?

Post by zullil »

zullil wrote:
Karol Majewski wrote:[D]8/1pN4r/5pkp/8/5K1p/2P4N/P3Bn2/8 w - -[/D]

Bh5+ wins. None of top engines could solve it. I guess that search techniques like null_move_pruning or futility_pruning are responsible for that blindness. Is pure brute_force the only chance to solve it? And if so, what UCI compatibile engine could you recommend to solve this position?
The latest SF modified to disable various prunings and reductions finds the move in about 2.5 minutes (with 16 threads), though it doesn't yet see that taking the bishop allows mate-in-12:

Code: Select all

info depth 17 currmove h3f2 currmovenumber 1
info depth 17 currmove h3g5 currmovenumber 14
info depth 17 currmove e2d1 currmovenumber 18
info depth 17 seldepth 25 multipv 1 score cp -69 lowerbound nodes 5578449181 nps 36859157 tbhits 0 time 151345 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 seldepth 25 multipv 1 score cp -63 lowerbound nodes 5583225555 nps 36854190 tbhits 0 time 151495 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 seldepth 25 multipv 1 score cp -54 lowerbound nodes 5590936186 nps 36852786 tbhits 0 time 151710 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 seldepth 25 multipv 1 score cp -40 lowerbound nodes 5617490435 nps 36859206 tbhits 0 time 152404 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 seldepth 25 multipv 1 score cp -19 lowerbound nodes 5632597613 nps 36849286 tbhits 0 time 152855 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 seldepth 25 multipv 1 score cp 12 lowerbound nodes 5656738816 nps 36840438 tbhits 0 time 153547 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 seldepth 25 multipv 1 score cp 58 lowerbound nodes 5675921835 nps 36830327 tbhits 0 time 154110 pv e2h5
info depth 17 currmove e2h5 currmovenumber 1
info depth 17 currmove c7e8 currmovenumber 4
info depth 17 seldepth 25 multipv 1 score cp 128 nodes 6137315217 nps 36670023 tbhits 0 time 167366 pv e2h5 g6h5 f4f5 f2h3 c7d5 h7f7 c3c4 f7f8 a2a4 f8f7 c4c5 f7f8 a4a5 f8f7 a5a6 b7a6 c5c6 a6a5 c6c7 a5a4 c7c8q
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 134 lowerbound nodes 6179535554 nps 36651832 tbhits 0 time 168601 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 141 lowerbound nodes 6188727912 nps 36645278 tbhits 0 time 168882 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 150 lowerbound nodes 6197883253 nps 36645893 tbhits 0 time 169129 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 164 lowerbound nodes 6211433868 nps 36641736 tbhits 0 time 169518 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 185 lowerbound nodes 6229265208 nps 36639503 tbhits 0 time 170015 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 216 lowerbound nodes 6250197527 nps 36632911 tbhits 0 time 170617 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 seldepth 25 multipv 1 score cp 263 lowerbound nodes 6279165554 nps 36618975 tbhits 0 time 171473 pv e2h5
info depth 18 currmove e2h5 currmovenumber 1
info depth 18 currmove h3f2 currmovenumber 2
info depth 18 seldepth 25 multipv 1 score cp 300 nodes 13717096574 nps 36716488 tbhits 0 time 373595 pv e2h5 g6h5 f4f5 f2h3 c7d5 h7f7 a2a4 f7f8 a4a5 f8f7 c3c4 f7f8 c4c5 f8f7 a5a6 b7a6 c5c6 a6a5 c6c7 a5a4 c7c8q a4a3 c8d8

Code: Select all

info depth 19 seldepth 28 multipv 1 score cp 372 nodes 60744090937 nps 36464453 tbhits 0 time 1665844 pv e2h5 g6g7 h3f2 g7h8 c7d5 h7d7 h5f3 h8g7 f2d3 d7d8 f4g4 d8a8 d3b4 g7f7 g4h4 a8a3 h4h5 f7g7 h5g4 g7g6 f3e4 g6f7
Now seeing that the bishop can't be taken.
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Hurnavich
Posts: 732
Joined: Wed Jun 19, 2013 8:14 pm

Re: any UCI pure brute-force engines?

Post by Hurnavich »

[D]8/1pN4r/5pkp/8/5K1p/2P4N/P3Bn2/8 w - -[/D]

Analysis by Komodo 8 64-bit NMPD:

1.Bh5+ Kg7 2.Nxf2 Kh8 3.Nd5 b5 4.Be8 Ra7 5.Nb4 Rc7 6.Bc6 h5 7.Ke3 Re7+ 8.Kd2 Rg7 9.Bxb5 Rg2 10.Ke3 h3 11.a4 h2 12.Bc6 Rg1 13.a5 Rc1 14.Kd4 Ra1 15.a6 Kg7 16.c4 Kf7 17.Bd5+ Ke8 18.c5 Ra5 19.Bb7 Kd7
+- (2.83) Depth: 26 00:08:29 4811MN, tb=38482430
(Hurnavich, 08.01.2015)

As mentioned by Andrew R. Case

Null move Pruning Disabled in Komodo solves the position.
"May your next game be your best"
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lech
Posts: 1136
Joined: Sun Feb 14, 2010 10:02 pm

Re: any UCI pure brute-force engines?

Post by lech »

I tried it with my new idea (Sting-sf-48, hash 1024M, dual core) without some dirty "Monte Carlo" or "rule50" or "nullMove search disabled" or "tablebases". (time 5 second!)
[d]8/1pN4r/5pkp/8/5K1p/2P4N/P3Bn2/8 w - - bm Bh5+;

Code: Select all

info depth 18 seldepth 27 multipv 1 score cp -113 nodes 2105001 nps 443158 time
4750 pv h3f2 h7c7 e2d3 g6g7 c3c4 c7d7 f4g4 d7d4 g4f3 b7b6 f3e3 d4d7 f2h3 d7a7 h3f4 a7a3 f4d5 h4h3 d5b6 h3h2
info depth 19
info currmove h3f2 currmovenumber 1
info nodes 2673824 nps 490339 time 5453
info currmove e2d3 currmovenumber 2
info currmove c3c4 currmovenumber 3
info currmove c7b5 currmovenumber 4
info currmove c7d5 currmovenumber 5
info currmove c7e6 currmovenumber 6
info currmove f4e3 currmovenumber 7
info currmove c7e8 currmovenumber 8
info currmove e2f3 currmovenumber 9
info currmove e2b5 currmovenumber 10
info currmove e2c4 currmovenumber 11
info currmove e2h5 currmovenumber 12
info currmove h3g1 currmovenumber 13
info currmove e2g4 currmovenumber 14
info currmove f4f3 currmovenumber 15
info currmove c7a6 currmovenumber 16
info currmove c7a8 currmovenumber 17
info currmove h3g5 currmovenumber 18
info currmove e2f1 currmovenumber 19
info currmove e2d1 currmovenumber 20
info currmove a2a4 currmovenumber 21
info currmove a2a3 currmovenumber 22
info currmove e2a6 currmovenumber 23
info depth 19 seldepth 27 multipv 1 score cp -113 nodes 2736492 nps 490586 time 5578 pv e2h5 g6h5 f4f5 f2h3 c7d5 h7f7 c3c4 f7f8 a2a3 f8f7 a3a4 f7f8 c4c5 f8f7 a4a5 f7f8 a5a6 b7a6 c5c6 a6a5 c6c7
info depth 20
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp -105 lowerbound nodes 2751101 nps 490479 time 5609 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp -96 lowerbound nodes 2756463 nps 490037 time 5625 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp -84 lowerbound nodes 2758521 nps 489099 time 5640 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp -66 lowerbound nodes 2760902 nps 489521 time 5640 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp -39 lowerbound nodes 2763390 nps 488576 time 5656 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp 1 lowerbound nodes 2768900 nps 488169 time 5672 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp 63 lowerbound nodes 2775833 nps 488101 time 5687 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp 154 lowerbound nodes 2785414 nps 488412 time 5703 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp 290 lowerbound nodes 2797892 nps 489313 time 5718 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp 495 lowerbound nodes 8589710 nps 655252 time 13109 pv e2h5
info nodes 8589710 nps 655252 time 13109
info currmove e2h5 currmovenumber 1
info nodes 9246947 nps 665726 time 13890
info currmove h3f2 currmovenumber 2
info currmove c7d5 currmovenumber 3
info currmove e2f3 currmovenumber 4
info currmove c7e6 currmovenumber 5
info currmove c3c4 currmovenumber 6
info currmove e2g4 currmovenumber 7
info currmove c7e8 currmovenumber 8
info currmove f4e3 currmovenumber 9
info currmove f4f3 currmovenumber 10
info currmove c7b5 currmovenumber 11
info currmove e2b5 currmovenumber 12
info currmove h3g5 currmovenumber 13
info currmove a2a4 currmovenumber 14
info currmove e2a6 currmovenumber 15
info currmove e2c4 currmovenumber 16
info currmove c7a6 currmovenumber 17
info currmove e2d3 currmovenumber 18
info currmove h3g1 currmovenumber 19
info currmove e2f1 currmovenumber 20
info currmove e2d1 currmovenumber 21
info currmove c7a8 currmovenumber 22
info currmove a2a3 currmovenumber 23
info depth 20 seldepth 29 multipv 1 score cp 492 nodes 9261566 nps 664530 time 13937 pv e2h5 g6g7 c7e6 g7h8 h3f2 h7e7 h5g4 h6h5 g4f5 h8g8 f2e4 g8f7 e4d6 f7g8 e6
Maybe, I can't be friendly, but let me be useful.
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Dicaste
Posts: 142
Joined: Mon Apr 16, 2012 7:23 pm
Location: Istanbul, TURKEY

Re: any UCI pure brute-force engines?

Post by Dicaste »

lech wrote:I tried it with my new idea (Sting-sf-48, hash 1024M, dual core) without some dirty "Monte Carlo" or "rule50" or "nullMove search disabled" or "tablebases". (time 5 second!)
[d]8/1pN4r/5pkp/8/5K1p/2P4N/P3Bn2/8 w - - bm Bh5+;

Code: Select all

info depth 18 seldepth 27 multipv 1 score cp -113 nodes 2105001 nps 443158 time
4750 pv h3f2 h7c7 e2d3 g6g7 c3c4 c7d7 f4g4 d7d4 g4f3 b7b6 f3e3 d4d7 f2h3 d7a7 h3f4 a7a3 f4d5 h4h3 d5b6 h3h2
info depth 19
info currmove h3f2 currmovenumber 1
info nodes 2673824 nps 490339 time 5453
info currmove e2d3 currmovenumber 2
info currmove c3c4 currmovenumber 3
info currmove c7b5 currmovenumber 4
info currmove c7d5 currmovenumber 5
info currmove c7e6 currmovenumber 6
info currmove f4e3 currmovenumber 7
info currmove c7e8 currmovenumber 8
info currmove e2f3 currmovenumber 9
info currmove e2b5 currmovenumber 10
info currmove e2c4 currmovenumber 11
info currmove e2h5 currmovenumber 12
info currmove h3g1 currmovenumber 13
info currmove e2g4 currmovenumber 14
info currmove f4f3 currmovenumber 15
info currmove c7a6 currmovenumber 16
info currmove c7a8 currmovenumber 17
info currmove h3g5 currmovenumber 18
info currmove e2f1 currmovenumber 19
info currmove e2d1 currmovenumber 20
info currmove a2a4 currmovenumber 21
info currmove a2a3 currmovenumber 22
info currmove e2a6 currmovenumber 23
info depth 19 seldepth 27 multipv 1 score cp -113 nodes 2736492 nps 490586 time 5578 pv e2h5 g6h5 f4f5 f2h3 c7d5 h7f7 c3c4 f7f8 a2a3 f8f7 a3a4 f7f8 c4c5 f8f7 a4a5 f7f8 a5a6 b7a6 c5c6 a6a5 c6c7
info depth 20
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp -105 lowerbound nodes 2751101 nps 490479 time 5609 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp -96 lowerbound nodes 2756463 nps 490037 time 5625 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp -84 lowerbound nodes 2758521 nps 489099 time 5640 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp -66 lowerbound nodes 2760902 nps 489521 time 5640 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp -39 lowerbound nodes 2763390 nps 488576 time 5656 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp 1 lowerbound nodes 2768900 nps 488169 time 5672 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp 63 lowerbound nodes 2775833 nps 488101 time 5687 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp 154 lowerbound nodes 2785414 nps 488412 time 5703 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp 290 lowerbound nodes 2797892 nps 489313 time 5718 pv e2h5
info currmove e2h5 currmovenumber 1
info depth 20 seldepth 0 multipv 1 score cp 495 lowerbound nodes 8589710 nps 655252 time 13109 pv e2h5
info nodes 8589710 nps 655252 time 13109
info currmove e2h5 currmovenumber 1
info nodes 9246947 nps 665726 time 13890
info currmove h3f2 currmovenumber 2
info currmove c7d5 currmovenumber 3
info currmove e2f3 currmovenumber 4
info currmove c7e6 currmovenumber 5
info currmove c3c4 currmovenumber 6
info currmove e2g4 currmovenumber 7
info currmove c7e8 currmovenumber 8
info currmove f4e3 currmovenumber 9
info currmove f4f3 currmovenumber 10
info currmove c7b5 currmovenumber 11
info currmove e2b5 currmovenumber 12
info currmove h3g5 currmovenumber 13
info currmove a2a4 currmovenumber 14
info currmove e2a6 currmovenumber 15
info currmove e2c4 currmovenumber 16
info currmove c7a6 currmovenumber 17
info currmove e2d3 currmovenumber 18
info currmove h3g1 currmovenumber 19
info currmove e2f1 currmovenumber 20
info currmove e2d1 currmovenumber 21
info currmove c7a8 currmovenumber 22
info currmove a2a3 currmovenumber 23
info depth 20 seldepth 29 multipv 1 score cp 492 nodes 9261566 nps 664530 time 13937 pv e2h5 g6g7 c7e6 g7h8 h3f2 h7e7 h5g4 h6h5 g4f5 h8g8 f2e4 g8f7 e4d6 f7g8 e6
Thank you Marek for support and your engine.
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