test position from playchess

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jdart
Posts: 4434
Joined: Fri Mar 10, 2006 5:23 am
Location: http://www.arasanchess.org

test position from playchess

Post by jdart »

[d] 2rr2k1/ppq1bpp1/4p2p/3n3P/n2B4/2P1N1N1/PP2QPP1/1K1R3R b - - 0 1

bm Ba3.

[pgn]
[Event "120m+30s, rated"]
[Site "Engine Room"]
[Date "2015.04.04"]
[Round "?"]
[White "Sandrokan, Ratassada 5_SN 2903"]
[Black "MingLi, Stockfish 030415 64"]
[Result "0-1"]
[ECO "B19"]
[WhiteElo "2427"]
[BlackElo "2568"]
[PlyCount "44"]
[EventDate "2015.04.25"]
[TimeControl "7200+30"]

1. e4 {0.00/0 0} c6 {0.00/0 0} 2. d4 {0.00/0 0} d5 {0.00/0 0} 3. Nc3 {0.00/0 0}
dxe4 {0.00/0 0} 4. Nxe4 {0.00/0 0} Bf5 {0.00/0 0} 5. Ng3 {0.00/0 0} Bg6 {0.00/
0 0} 6. h4 {0.00/0 0} h6 {0.00/0 0} 7. Nf3 {0.00/0 0} Nd7 {0.00/0 0} 8. h5 {0.
00/0 0} Bh7 {0.00/0 0} 9. Bd3 {0.00/0 0} Bxd3 {0.00/0 0} 10. Qxd3 {0.00/0 0} e6
{0.00/0 0} 11. Bd2 {0.00/0 0} Ngf6 {0.00/37 368} 12. Qe2 {0.00/0 0 (0-0-0)} Be7
{0.00/40 214} 13. Ne5 {-0.02/33 373 (0-0-0)} O-O {0.00/41 207} 14. O-O-O {0.00/
0 0} c5 {0.00/37 22} 15. dxc5 {0.00/0 0} Nxc5 {0.00/41 141} 16. Bc3 {0.00/0 0}
Qc7 {-0.31/37 210} 17. Kb1 {0.00/0 0} Rfd8 {-0.44/38 250} 18. Ng4 {-0.18/32 0}
Nd5 {-0.44/39 198} 19. Bd4 {-0.18/33 0} Rac8 {-0.47/37 206 (b5)} 20. Ne3 {-0.
16/33 0 (Qe5)} Na4 {-1.12/39 241 (a6)} 21. c3 {-0.35/34 484} Ba3 {-1.39/44 0
(Dc6)} 22. Bxg7 {-0.88/38 372} Nxe3 {-1.48/45 95 Sandrokan, Ratassada 5_SN
29031 abbandona (Lag: Av=0.82s, max=5.8s)} 0-1
[/pgn]
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kgburcham
Posts: 2016
Joined: Sun Feb 17, 2008 4:19 pm

Re: test position from playchess

Post by kgburcham »

[d] 2rr2k1/ppq1bpp1/4p2p/3n3P/n2B4/2P1N1N1/PP2QPP1/1K1R3R b - -

8 cores at 4.3 HT off
Engine: Komodo 9 64-bit (8192 MB)
by Don Dailey, Larry Kaufman, Mark Lefler
Threads now set to 8
<snip>
26.01 0:56 -0.68 21...Qc6 22.Qc2 Ba3 23.Nxd5 Rxd5 24.bxa3 e5 25.Nf5 Kf8 26.Ne3 Rb5+ 27.Ka1 exd4 28.Rxd4 Nxc3 29.Rc4 Rc5 30.Qxc3 Rxc4 31.Nxc4 Qxc4 32.Qxc4 Rxc4 33.Kb2 Rg4 34.g3 Re4 (972.748.785) 17366
26.23 1:03 -0.76++ 21...Ba3 (1.122.292.415) 17618
26.01 1:08 -0.83++ 21...Ba3 (1.224.592.051) 17804
26.01 1:11 -0.93++ 21...Ba3 (1.285.200.338) 17889
26.01 1:17 -1.08++ 21...Ba3 (1.401.726.540) 18032
26.01 1:24 -1.13 21...Ba3 22.Bxg7 Nxe3 23.Rxd8+ Qxd8 24.Bxh6 Bxb2 25.Qxe3 Kh7 26.Ne4 Bxc3 27.Ng5+ Kg8 28.Ne4 Kh8 29.Nxc3 Rxc3 30.Bg5 f6 31.Qxe6 Rc6 32.Bxf6+ Qxf6 33.Qxf6+ Rxf6 34.f3 Rb6+ (1.535.182.241) 18192
27.01 1:34 -1.20++ 21...Ba3 (1.730.244.492) 18388
27.01 1:35 -1.13-- 21...Ba3 22.Bxg7 (1.761.092.491) 18430
27.01 1:40 -1.19 21...Ba3 22.Bxg7 Nxe3 23.Rxd8+ Qxd8 24.Bxh6 Bxb2 25.Qxe3 Kh7 26.Ne4 Bxc3 27.Ng5+ Kg8 28.Ne4 Kh8 29.Nxc3 Rxc3 30.Bg5 f6 31.Qxe6 Rc6 32.Bxf6+ Qxf6 33.Qxf6+ Rxf6 34.f3 Rb6+ (1.849.230.812) 18491
28.01 1:50 -1.16 21...Ba3 22.Bxg7 Nxe3 23.Rxd8+ Qxd8 24.Bxh6 Bxb2 25.Qxe3 Kh7 26.Ne4 Bxc3 27.Ng5+ Kg8 28.Ne4 Kh8 29.Nxc3 Rxc3 30.Bg5 f6 31.Qxe6 Rc6 32.Bxf6+ Qxf6 33.Qxf6+ Rxf6 34.f3 Rb6+ (2.048.685.852) 18620
29.01 2:01 -1.09-- 21...Ba3 22.Bxg7 (2.279.408.278) 18777
29.01 2:11 -1.16++ 21...Ba3 (2.471.474.811) 18855
29.01 2:29 -1.09-- 21...Ba3 22.Bxg7 (2.863.590.764) 19119
29.01 2:42 -1.17++ 21...Ba3 (3.133.404.910) 19225
29.01 2:54 -1.26 21...Ba3 22.Bxg7 Nxe3 23.Rxd8+ Qxd8 24.Bxh6 Bxb2 25.Qxe3 Kh7 26.Ne4 Bxc3 27.Ng5+ Kg8 28.Ne4 Kh8 29.Nxc3 Rxc3 30.Bg5 f6 31.Qxe6 Rc6 32.Bxf6+ Qxf6 33.Qxf6+ Rxf6 34.f3 Rb6+ (3.366.702.310) 19326
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: test position from playchess

Post by zullil »

jdart wrote:[d] 2rr2k1/ppq1bpp1/4p2p/3n3P/n2B4/2P1N1N1/PP2QPP1/1K1R3R b - - 0 1

bm Ba3.
Latest Stockfish finds this at depth 29, in perhaps a lucky run:

Code: Select all

info depth 29 seldepth 44 multipv 1 score cp 60 lowerbound nodes 559851486 nps 20177736 hashfull 819 tbhits 0 time 27746 pv e7a3
info depth 29 currmove e7a3 currmovenumber 1
info depth 29 seldepth 44 multipv 1 score cp 67 lowerbound nodes 572091833 nps 20238143 hashfull 827 tbhits 0 time 28268 pv e7a3
info depth 29 currmove e7a3 currmovenumber 1
info depth 29 seldepth 44 multipv 1 score cp 76 lowerbound nodes 585272058 nps 20267758 hashfull 834 tbhits 0 time 28877 pv e7a3
info depth 29 currmove e7a3 currmovenumber 1
info depth 29 seldepth 44 multipv 1 score cp 90 lowerbound nodes 596231461 nps 20296550 hashfull 839 tbhits 0 time 29376 pv e7a3
info depth 29 currmove e7a3 currmovenumber 1
info depth 29 seldepth 44 multipv 1 score cp 111 lowerbound nodes 612425925 nps 20356520 hashfull 849 tbhits 0 time 30085 pv e7a3
info depth 29 currmove e7a3 currmovenumber 1
info depth 29 currmove d5f4 currmovenumber 3
info depth 29 currmove c7e5 currmovenumber 14
info depth 29 currmove d5f6 currmovenumber 15
info depth 29 currmove c7c4 currmovenumber 16
info depth 29 currmove c7f4 currmovenumber 17
info depth 29 seldepth 49 multipv 1 score cp 131 nodes 675159803 nps 20525317 hashfull 878 tbhits 0 time 32894 pv e7a3 d4g7 d5e3 d1d8 c7d8 g7h6 a3b2 e2e3 g8h7 e3e4 h7h6 e4a4 b2c3 g3e4 c3e5 h1d1 d8b6 a4b3 b6b3 a2b3 h6h5 d1d7 c8c7 d7c7 e5c7 b1c2 h5g4 c2c3 c7e5 c3d3 b7b6 b3b4 a7a5 b4a5 b6a5 d3c4 g4f5 e4d2 a5a4 c4b4
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User avatar
Eelco de Groot
Posts: 4723
Joined: Sun Mar 12, 2006 2:40 am
Full name:   Eelco de Groot

Re: test position from playchess

Post by Eelco de Groot »

Thanks for the testposition Jon! The score after 20...Na4 is already much in Black's favour, so maybe there is an avoid move testposition in there somewhere or Na4 could be a testposition. Ba3 was played instantly and c3 was the expected move, if I see that right so I think Stockfish saw it already a move earlier.

It seemed very hard for Rainbow Serpent at least for my last testversion 016, did not see nothing after more than 47 minutes. So I tried the previous again, and it found it! This one is more selective, so that can be a highly counterintuitive thing.


2rr2k1/ppq1bpp1/4p2p/3n3P/n2B4/2P1N1N1/PP2QPP1/1K1R3R b - -

Engine: Rainbow Serpent Sf20150607_015 MOD MP (Q6700, 32 bit, 512 MB)
by Tord Romstad, Marco Costalba and Joona Kiiski

15/23 0:01 +0.69 21...Nf4 22.Qb5 Nc5 23.Qc4 a6
24.Bxc5 Rxd1+ 25.Rxd1 Bxc5 26.Qe4 a5
27.Qf3 Bxe3 28.fxe3 Nd5 29.Rf1 b5
30.e4 Nf6 31.Ne2 b4 (1.486.466) 1309
.
.
.
25/47 1:02 +0.43 21...Nf4 22.Qc2 b5 23.Ng4 Nd5 24.Ne3 Nxe3
25.Bxe3 Nb6 26.Bxb6 Qxb6 27.Qe2 a5
28.Rxd8+ Bxd8 29.Ne4 b4 30.cxb4 axb4
31.Rc1 Rxc1+ 32.Kxc1 b3 33.axb3 Qxb3
34.Nc3 Qb6 (154.496.849) 2474

26/47 1:14 +0.49++ 21...Nf4 (186.160.145) 2499

26/47 1:26 +0.55++ 21...Qc6 (216.167.590) 2512
.
.
.
27/52 2:11 +0.60 21...Ba3 22.Bxg7 Nxe3 23.Rxd8+ Qxd8
24.Bxh6 Bxb2 25.Qxe3 Bxc3 26.Qg5+ Qxg5
27.Bxg5 Bd4 28.Bd2 Bxf2 29.Ne4 Bd4
30.g4 Be5 31.g5 Rc4 32.Nf6+ Bxf6
33.gxf6 Rg4 34.Rc1 Nb6 (344.131.137) 2612

28/52 2:21 +0.53-- 21...Ba3 22.Bxg7 (372.467.052) 2626

28/52 2:22 +0.60++ 21...Ba3 (375.648.143) 2628

28/52 2:27 +0.59 21...Ba3 22.Bxg7 Nxe3 23.Rxd8+ Qxd8
24.Bxh6 Bxb2 25.Qxe3 Bxc3 26.Qg5+ Qxg5
27.Bxg5 Bd4 28.Bd2 Bxf2 29.Ne4 Bd4
30.Rc1 Rxc1+ 31.Bxc1 Nc5 32.Nxc5 Bxc5
33.g4 f5 34.gxf5 exf5 (390.001.195) 2636
.
.
.
34/65 9:39 +1.39 21...Ba3 22.Bxg7 Nxe3 23.Rxd8+ Qxd8
24.Bxh6 Bxb2 25.Qxe3 Kh7 26.Ne4 Bxc3
27.Ng5+ Kg8 28.Ne4 Rc4 29.a3 Qa5
30.Qg5+ Qxg5 31.Nxg5 Bd2 32.f3 Bf4
33.g3 Bxg3 34.Rg1 Nc3+ (1.709.336.905) 2948

35/74 11:14 +1.45++ 21...Ba3 (2.007.935.617) 2977

35/74 11:59 +1.50 21...Ba3 22.Bxg7 Nxe3 23.Rxd8+ Qxd8
24.Bxh6 Bxb2 25.Qxe3 Kh7 26.Ne4 Bxc3
27.Ng5+ Kg8 28.Ne4 Rc4 29.a3 Qa5
30.Qg5+ Qxg5 31.Nxg5 Bd2 32.f3 Bf4
33.g3 Bxg3 34.Rg1 Nc3+ (2.144.949.573) 2982

36/74 15:55 +1.56++ 21...Ba3 (2.894.990.998) 3029

36/74 17:00 +1.50-- 21...Ba3 22.Bxg7 (3.091.625.233) 3028

36/74 17:11 +1.56++ 21...Ba3 (3.119.871.071) 3025

36/74 17:30 +1.48-- 21...Ba3 22.Bxg7 (3.180.713.100) 3026

36/74 18:16 +1.43 21...Ba3 22.Bxg7 Nxe3 23.Rxd8+ Qxd8
24.Bxh6 Bxb2 25.Qxe3 Kh7 26.Ne4 Bxc3
27.Ng5+ Kg8 28.Ne4 Rc4 29.a3 Qa5
30.Nxc3 Nxc3+ 31.Kb2 Ne4 32.Rc1 Qe5+
33.Kb3 Qb5+ 34.Ka2 Rxc1 (3.313.048.581) 3022

best move: Be7-a3 time: 19:04.860 min n/s: 3.022.327 nodes: 3.460.398.719
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
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: test position from playchess

Post by zullil »

zullil wrote:
jdart wrote:[d] 2rr2k1/ppq1bpp1/4p2p/3n3P/n2B4/2P1N1N1/PP2QPP1/1K1R3R b - - 0 1

bm Ba3.
Latest Stockfish finds this at depth 29, in perhaps a lucky run:

Code: Select all

info depth 29 seldepth 44 multipv 1 score cp 60 lowerbound nodes 559851486 nps 20177736 hashfull 819 tbhits 0 time 27746 pv e7a3
info depth 29 currmove e7a3 currmovenumber 1
info depth 29 seldepth 44 multipv 1 score cp 67 lowerbound nodes 572091833 nps 20238143 hashfull 827 tbhits 0 time 28268 pv e7a3
info depth 29 currmove e7a3 currmovenumber 1
info depth 29 seldepth 44 multipv 1 score cp 76 lowerbound nodes 585272058 nps 20267758 hashfull 834 tbhits 0 time 28877 pv e7a3
info depth 29 currmove e7a3 currmovenumber 1
info depth 29 seldepth 44 multipv 1 score cp 90 lowerbound nodes 596231461 nps 20296550 hashfull 839 tbhits 0 time 29376 pv e7a3
info depth 29 currmove e7a3 currmovenumber 1
info depth 29 seldepth 44 multipv 1 score cp 111 lowerbound nodes 612425925 nps 20356520 hashfull 849 tbhits 0 time 30085 pv e7a3
info depth 29 currmove e7a3 currmovenumber 1
info depth 29 currmove d5f4 currmovenumber 3
info depth 29 currmove c7e5 currmovenumber 14
info depth 29 currmove d5f6 currmovenumber 15
info depth 29 currmove c7c4 currmovenumber 16
info depth 29 currmove c7f4 currmovenumber 17
info depth 29 seldepth 49 multipv 1 score cp 131 nodes 675159803 nps 20525317 hashfull 878 tbhits 0 time 32894 pv e7a3 d4g7 d5e3 d1d8 c7d8 g7h6 a3b2 e2e3 g8h7 e3e4 h7h6 e4a4 b2c3 g3e4 c3e5 h1d1 d8b6 a4b3 b6b3 a2b3 h6h5 d1d7 c8c7 d7c7 e5c7 b1c2 h5g4 c2c3 c7e5 c3d3 b7b6 b3b4 a7a5 b4a5 b6a5 d3c4 g4f5 e4d2 a5a4 c4b4

Code: Select all

info depth 47 seldepth 109 multipv 1 score cp 159 nodes 115762512813 nps 28606065 hashfull 999 tbhits 0 time 4046782 pv e7a3 d4g7 d5e3 d1d8 c7d8 g7h6 a3b2 e2e3 g8h7 g3e4 b2c3 e4g5 h7g8 g5e4 c8c4 a2a3 d8a5 e4c3 a4c3 b1b2 c3e4 h1c1 a5e5 b2b3 e5b5 b3a2 c4c1 e3c1 b5d5 a2b2 d5d4 b2b1 e4f2 h6e3 d4e4 b1a1 e4e5 a1b1 f2d3 c1d2 e5b5 b1c2 d3e5 d2d8 g8h7 d8d4 b5e2 c2c3 e5g4 e3c1 e2g2 d4d3 h7g7 h5h6 g4h6 d3d4 g7g6 c1h6 g2c6 c3b2 g6h6 d4f6 h6h5 f6f7 h5g5 f7g7 g5f5 g7h7 f5g4 h7g6 g4f4 g6h6 f4e4 h6h1 e4d4 h1g1 d4d5 g1a7 c6b5 b2c3 e6e5 a7e3 b5c4 c3d2 c4d4 d2e2 b7b6 e3b3 d4c4 b3c4 d5c4
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