Test Position: Exchange or not (Javanbakht-Girish, 2012)

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Albert Silver
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Test Position: Exchange or not (Javanbakht-Girish, 2012)

Post by Albert Silver »

[d]r4rk1/p1q1p1bp/1p4p1/n2P1b2/2p1BP2/2P1B3/P3N1PP/2RQ1RK1 w - - 0 17

This is from one of the World Youth games currently underway. In this position White's obvious choice is d6 winning the exchange, but he has stronger with Bxf5! Rxf5 g4!
"Tactics are the bricks and sticks that make up a game, but positional play is the architectural blueprint."
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Eelco de Groot
Posts: 4702
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Full name:   Eelco de Groot

Re: Test Position: Exchange or not (Javanbakht-Girish, 2012)

Post by Eelco de Groot »

It seems to be a good test Albert!

r4rk1/p1q1p1bp/1p4p1/n2P1b2/2p1BP2/2P1B3/P3N1PP/2RQ1RK1 w - -

Engine: Rainbow Serpent 2.3.1 Build 53 (Q6700, 4 threads, 512 MB)
Still running with nullmove in quiescence search, eval is changed a bit to handle passed pawns on the edge of the board in opposite bishop endings a bit different, but still does not play 42...a5 like HIARCS and Houdini do.
by Tord Romstad, Marco Costalba and Joona Kiiski

26/48 0:26 +0.84 1.d6 Qxd6 2.Qxd6 exd6 3.Bd5+ Kh8
4.Bxa8 Rxa8 5.Bd4 Bd3 6.Bxg7+ Kxg7
7.Rfe1 Nc6 8.Ng3 Rf8 9.Ne4 Bxe4
10.Rxe4 d5 11.Re6 Rf6 12.Rxf6 Kxf6
13.Kf2 Ke6 14.a4 (59.493.024) 2250

27/48 0:26 +0.92++ 1.d6 Qxd6 2.Qxd6 exd6 3.Bd5+ Kh8
4.Bxa8 Rxa8 5.Bd4 Bd3 6.Bxg7+ Kxg7
7.Rfe1 Nc6 8.Ng3 Rf8 9.Ne4 Bxe4
10.Rxe4 d5 11.Re6 Rf6 12.Rxf6 Kxf6
13.Kf2 Ke6 14.a4 (60.500.727) 2250

27/48 0:29 +0.88 1.d6 Qxd6 2.Qxd6 exd6 3.Bd5+ Kh8
4.Bxa8 Rxa8 5.Bd4 Bd3 6.Bxg7+ Kxg7
7.Rfe1 Nc6 8.Ng3 Rf8 9.Ne4 Bxe4
10.Rxe4 d5 11.Re6 Rf6 12.Rxf6 Kxf6
13.Kf2 Ke6 14.a4 (66.821.050) 2248

28/48 0:36 +0.88 1.d6 Qxd6 2.Qxd6 exd6 3.Bd5+ Kh8
4.Bxa8 Rxa8 5.Bd4 Bd3 6.Bxg7+ Kxg7
7.Rfe1 Nc6 8.Ng3 Rf8 9.Ne4 Bxe4
10.Rxe4 d5 11.Re6 Rf6 12.Rxf6 Kxf6
13.Kf2 Ke6 14.a4 (80.841.992) 2241

29/55 0:38 +0.96++ 1.d6 Qxd6 2.Qxd6 exd6 3.Bd5+ Kh8
4.Bxa8 Rxa8 5.Bd4 Bd3 6.Bxg7+ Kxg7
7.Rfe1 Nc6 8.Ng3 Rf8 9.Ne4 Bxe4
10.Rxe4 d5 11.Re6 Rf6 12.Re8 Rxf4
13.Rd1 d4 14.Rc8 (87.677.986) 2251

29/55 0:48 +0.80 1.d6 Qxd6 2.Qxd6 exd6 3.Bd5+ Kh8
4.Bxa8 Rxa8 5.Bd4 Bd3 6.Bxg7+ Kxg7
7.Rfe1 Nc6 8.Ng3 Rf8 9.Ne4 d5 10.Nf2 Bf5
11.Rcd1 Rd8 12.g4 Bc8 13.h3 h5
14.gxh5 (109.129.496) 2249

30/55 0:49 +0.88++ 1.d6 Qxd6 2.Qxd6 exd6 3.Bd5+ Kh8
4.Bxa8 Rxa8 5.Bd4 Bd3 6.Bxg7+ Kxg7
7.Rfe1 Nc6 8.Ng3 Rf8 9.Ne4 d5 10.Nf2 Rxf4
11.Rcd1 Bc2 12.Rxd5 Rf7 13.Re6 Na5
14.Rd2 (112.236.408) 2252

30/55 0:50 +0.96++ 1.d6 Qxd6 2.Qxd6 exd6 3.Bd5+ Kh8
4.Bxa8 Rxa8 5.Bd4 Bd3 6.Bxg7+ Kxg7
7.Rfe1 Nc6 8.Ng3 Rf8 9.Ne4 d5 10.Nf2 Rxf4
11.Rcd1 Bc2 12.Rxd5 Rf7 13.Re6 Na5
14.Rd2 (113.306.602) 2252

30/55 1:01 +0.96 1.d6 Qxd6 2.Qxd6 exd6 3.Bd5+ Kh8
4.Bxa8 Rxa8 5.Nd4 Bxd4 6.Bxd4+ Kg8
7.Bf6 Kf7 8.Bg5 Nc6 9.Rfd1 Bd3
10.Re1 Rh8 11.Re3 h6 12.Bh4 d5 (138.784.792) 2245

31/55 2:18 +1.05++ 1.Bxf5 Rxf5 2.g4 Rf7 3.Nd4 Qd6 4.Ne6 Nb7
5.Qf3 Re8 6.Nxg7 Rxg7 7.Bd4 (314.181.227) 2268

31/55 2:27 +1.13++ 1.Bxf5 Rxf5 2.g4 Rf7 3.Nd4 Qd6 4.Ne6 Nb7
5.Qf3 Re8 6.Nxg7 Rxg7 7.Bd4 Rf7
8.Rce1 Nc5 9.f5 gxf5 10.gxf5 Nd3
11.Re6 (333.718.249) 2260

31/55 2:46 +1.25++ 1.Bxf5 Rxf5 2.g4 Rf7 3.Nd4 Qd6 4.Ne6 Nb7
5.Qf3 Re8 6.Nxg7 Rxg7 7.Bd4 Rf7
8.Rce1 Nc5 9.f5 gxf5 10.gxf5 Nd3
11.Re6 (375.854.600) 2255

31/55 3:11 +1.21 1.Bxf5 Rxf5 2.g4 Rf7 3.Nd4 Bxd4
4.Qxd4 Qd6 5.f5 gxf5 6.Rxf5 Rxf5
7.gxf5 Kf7 8.Qe4 Rg8+ 9.Kh1 Nb7
10.Re1 Nc5 11.Qxc4 Nd7 12.Bf4 Qc5
13.Qe4 Nf6 14.Qe6+ (427.035.202) 2235

32/55 3:26 +1.21 1.Bxf5 Rxf5 2.g4 Rf7 3.Nd4 Bxd4
4.Qxd4 Qd6 5.f5 gxf5 6.Rxf5 Rxf5
7.gxf5 Kf7 8.Qe4 Rg8+ 9.Kh1 Nb7
10.Re1 Nc5 11.Qxc4 Nd7 12.Bf4 Qc5
13.Qe4 Nf6 14.Qe6+ (460.735.852) 2235

33/55 4:19 +1.29++ 1.Bxf5 Rxf5 2.g4 Rf7 3.Nd4 Bxd4
4.Qxd4 Re8 5.f5 Rf6 6.Bg5 Rff8
7.Rce1 (576.397.836) 2222

33/57 5:01 +1.37++ 1.Bxf5 Rxf5 2.g4 Rf7 3.Nd4 Bxd4
4.Qxd4 Re8 5.f5 Qd6 6.fxg6 Rxf1+
7.Rxf1 hxg6 8.Bh6 e5 9.Qe4 Rd8 (666.178.087) 2213

33/65 6:27 +1.25 1.Bxf5 Rxf5 2.g4 Rf7 3.Nd4 Bxd4
4.Qxd4 Rd8 5.f5 Qc5 6.fxg6 hxg6
7.Qxc5 bxc5 8.Rcd1 Rxf1+ 9.Kxf1 e6
10.Bxc5 Nc6 11.d6 Ne5 12.Bxa7 Nd7
13.Be3 e5 14.Ke2 (859.998.974) 2218

34/65 9:35 +1.25 1.Bxf5 Rxf5 2.g4 Rf7 3.Nd4 Bxd4
4.Qxd4 Rd8 5.f5 Qc5 6.fxg6 hxg6
7.Qxc5 bxc5 8.Rcd1 Rxf1+ 9.Kxf1 e6
10.Bxc5 Nc6 11.d6 Ne5 12.Bxa7 Nd7
13.Be3 e5 14.Ke2 (1.272.108.251) 2210

best move: Be4xf5 time: 9:47.983 min n/s: 2.210.359 nodes: 1.272.108.251

Eelco
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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Dicaste
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Joined: Mon Apr 16, 2012 7:23 pm
Location: Istanbul, TURKEY

Re: Test Position: Exchange or not (Javanbakht-Girish, 2012)

Post by Dicaste »

Houdini find Bxf5 too. d6 is good but Bxf5 better.

Code: Select all

New game
r4rk1/p1q1p1bp/1p4p1/n2P1b2/2p1BP2/2P1B3/P3N1PP/2RQ1RK1 w - - 0 1

Analysis by Houdini 3 Pro x64 (Tactical Mode w/ Tablebases):

17.Bxf5 Rxf5 18.Ng3 Rff8 19.Ne4 Nb7 20.Qg4 Nd6 21.Qe6+ Rf7 
  +/=  (0.50)   Depth: 7/20   00:00:00  13kN
17.d6 
  +/=  (0.58 ++)   Depth: 8/21   00:00:00  27kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Be4 22.f5 Re8 23.fxg6 Bxg6 
  +/=  (0.56)   Depth: 8/21   00:00:00  29kN
17.d6 
  +/=  (0.64 ++)   Depth: 9/21   00:00:00  35kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Be4 22.f5 gxf5 23.Nxf5 Be5 
  +/=  (0.59)   Depth: 9/22   00:00:00  38kN
17.d6 Qxd6 
  +/=  (0.51 --)   Depth: 10/26   00:00:00  70kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Bf2 Rf8 23.Rce1 Nc6 24.Ne6 Bxe6 25.Rxe6 Bxc3 26.Rxd6 
  +/=  (0.57)   Depth: 10/26   00:00:00  125kN
17.d6 
  +/=  (0.65 ++)   Depth: 11/33   00:00:00  168kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Rfe1 Rf8 22.Nd4 Bd7 23.Bf2 Nb7 24.Ne6 Bxe6 25.Rxe6 Rxf4 26.Re8+ Bf8 27.Rce1 Kg8 28.R1e7 
  +/=  (0.61)   Depth: 11/33   00:00:00  195kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Bf2 Nb7 23.Rce1 Nc5 24.Re7 Rf8 25.Bh4 Kg8 26.Bg5 Bxd4+ 27.cxd4 
  +/=  (0.57)   Depth: 12/33   00:00:00  290kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Bf2 Nb7 23.Rce1 Nc5 24.Re7 Rf8 25.Bh4 Kg8 26.Bg5 Bxd4+ 27.cxd4 
  +/=  (0.57)   Depth: 13/33   00:00:00  437kN
17.d6 
  +/=  (0.65 ++)   Depth: 14/33   00:00:01  711kN
17.d6 Qxd6 
  +/=  (0.49 --)   Depth: 14/34   00:00:01  896kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Rfe1 d5 22.Nd4 Be4 23.Ne6 Nc6 24.Ng5 Bf5 25.Nf7+ Kg8 26.Nd6 Bd3 27.Bf2 Bh6 28.g3 Bf8 
  +/=  (0.50)   Depth: 14/34   00:00:01  1384kN
17.d6 
  +/=  (0.58 ++)   Depth: 15/34   00:00:01  1707kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Rfe1 Bf6 23.Bf2 Nb7 24.Ne6 Re8 25.Ng5 Rxe1+ 26.Bxe1 Kg7 27.Ne4 Bd8 28.Rd1 
  +/-  (0.71)   Depth: 15/38   00:00:01  1951kN
17.d6 Qxd6 
  +/=  (0.62 --)   Depth: 16/38   00:00:02  3161kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bxd4 22.Bxd4+ Kg8 23.Rfe1 Nc6 24.Rcd1 d5 25.Kf2 Be4 26.g3 Nxd4 27.Rxd4 Kg7 28.Rexe4 dxe4 29.Rxc4 Kf6 30.Rxe4 Rd8 
  +/=  (0.54)   Depth: 16/38   00:00:02  4398kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bxd4 22.Bxd4+ Kg8 23.Rfe1 Nc6 24.Rcd1 d5 25.Be5 Be4 26.Bd6 Kf7 27.Kf2 Re8 28.a4 Re6 29.Ba3 Re8 30.Rd2 
  +/=  (0.57)   Depth: 17/39   00:00:02  5746kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bxd4 22.Bxd4+ Kg8 23.Rfe1 Nc6 24.Rcd1 d5 25.Be5 Be4 26.Bd6 Kf7 27.Kf2 Re8 28.a4 Re6 29.Ba3 Rf6 30.Kg3 Kg7 
  +/=  (0.62)   Depth: 18/39   00:00:03  8216kN
17.Bxf5 
  +/=  (0.65 ++)   Depth: 18/39   00:00:04  13399kN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Qd6 21.Qe4 Nb7 22.Qxc4 Raf8 23.Rcd1 Qd7 24.Qe2 Nd6 25.h3 Nb5 26.Qd3 Rc8 27.Rc1 Nd6 28.Bd4 Nc4 29.f5 gxf5 30.Rxf5 Rxf5 31.Qxf5 Qxf5 32.gxf5 
  +/-  (0.78)   Depth: 18/59   00:00:06  23623kN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Qd6 21.Qe4 Nb7 22.Qxc4 Raf8 23.Rcd1 Qd7 24.Qe2 Nd6 25.h3 Nb5 26.Qd3 Rc8 27.Rc1 Nd6 28.Bd4 Nc4 29.f5 gxf5 30.Rxf5 Rxf5 31.Qxf5 Qxf5 32.gxf5 
  +/-  (0.78)   Depth: 19/59   00:00:08  30947kN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Qd6 21.Qe4 Nb7 22.Qxc4 Raf8 23.Rcd1 Qd7 24.Qe2 Nd6 25.h3 Ne4 26.Qd3 Qa4 27.Rde1 Nd6 28.f5 gxf5 29.Bh6 Rc8 30.gxf5 Qxa2 31.Qg3+ Kh8 32.f6 
  +/-  (0.82)   Depth: 20/59   00:00:11  50043kN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Qd6 21.Qe4 Nb7 22.Qxc4 Raf8 23.Rcd1 Qd7 24.Qe2 Nd6 25.h3 Ne4 26.Qd3 Qa4 27.Rde1 Nd6 28.f5 gxf5 29.Bh6 Rc8 30.gxf5 Qxa2 31.Qg3+ Kh8 32.f6 
  +/-  (0.82)   Depth: 21/59   00:00:19  90639kN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Qd6 21.Qe4 Raf8 22.Kh1 Nb7 23.Qxc4 Nc5 24.Rcd1 Rc8 25.f5 Qe5 26.Rf3 Qe4 27.Qxe4 Nxe4 28.Bd4 gxf5 29.gxf5 Kf8 30.Kg2 Nf6 31.Bxf6 Rxf6 32.Re1 Kf7 33.Re5 b5 34.Rg3 
  +/-  (0.80)   Depth: 22/59   00:00:32  165mN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Qd6 21.Qe4 Raf8 22.Kh1 Nb7 23.Qxc4 Nc5 24.Rcd1 Rc8 25.f5 Qe5 26.Rf3 Qe4 27.Qxe4 Nxe4 28.Bd4 Kf8 29.Re1 gxf5 30.gxf5 Nf6 31.Bxf6 Rxf6 32.Re5 Rf7 33.Rfe3 Rc7 34.Rg3 Rg7 35.Ree3 Rxg3 36.hxg3 
  +/-  (0.80)   Depth: 23/59   00:00:53  285mN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Qd6 21.Qe4 Raf8 22.Kh1 Nb7 23.Qxc4 Nc5 24.Rcd1 Rc8 25.f5 Qe5 26.Rf3 Qe4 27.Qxe4 Nxe4 28.Bd4 Kf8 29.Re1 gxf5 30.gxf5 Nf6 31.Bxf6 Rxf6 32.Re5 Rf7 33.Rfe3 Rc7 34.Rg3 Rg7 35.Ree3 Rxg3 36.hxg3 
  +/-  (0.80)   Depth: 24/59   00:01:18  437mN
17.Bxf5 
  +/-  (0.90 ++)   Depth: 25/61   00:02:12  743mN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Rd8 21.Rcd1 Nb7 22.f5 Nd6 23.fxg6 hxg6 24.Rxf7 Nxf7 25.Qe4 Rd6 26.Rd4 Qb7 27.Bf4 Rf6 28.Rxc4 Qd7 29.h3 Nd6 30.Bxd6 exd6 31.Rc6 Qf7 32.Qc4 Qe7 33.Rc8+ Rf8 34.Rxf8+ Kxf8 35.Qd4 Kg8 36.Qd3 Qf6 37.Kg2 Kg7 38.Qd4 g5 39.Qxf6+ Kxf6 40.Kf3 Ke5 
  +/-  (0.89)   Depth: 25/72   00:03:15  1094mN
17.Bxf5 
  +/-  (0.99 ++)   Depth: 26/72   00:05:05  1730mN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Rd8 21.Rcd1 Nb7 22.f5 Nd6 23.fxg6 hxg6 24.Rxf7 Nxf7 25.Qe4 Rd6 26.Rd4 Qb7 27.Bf4 Rf6 28.Rxc4 Qd7 29.h3 Nd6 30.Bxd6 Rxd6 31.Rc6 Rxc6 32.dxc6 Qd1+ 33.Kg2 Qd2+ 34.Kf1 Qd1+ 35.Kf2 Qd2+ 36.Kf3 Qxc3+ 37.Kf2 Qd2+ 38.Kg3 Qc3+ 39.Kf2 Qd2+ 
  +/-  (1.04)   Depth: 26/72   00:06:45  2293mN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Rd8 21.Rcd1 Nb7 22.f5 Nd6 23.fxg6 hxg6 24.Rxf7 Nxf7 25.Qe4 Rd6 26.Rd4 Qb7 27.Bf4 Rf6 28.Rxc4 Qd7 29.h3 Nd6 30.Bxd6 Rxd6 31.Rc6 Rxc6 32.dxc6 Qd1+ 33.Kg2 Qd2+ 34.Kf1 Qd1+ 35.Kf2 Qd2+ 36.Kf3 Qxc3+ 37.Kf2 Qd2+ 38.Kg3 Qc3+ 39.Kf2 Qd2+ 
  +/-  (1.04)   Depth: 27/72   00:09:32  3266mN
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AdminX
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Location: Acworth, GA

Re: Test Position: Exchange or not (Javanbakht-Girish, 2012)

Post by AdminX »

Nice!
"Good decisions come from experience, and experience comes from bad decisions."
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yanquis1972
Posts: 1766
Joined: Wed Jun 03, 2009 12:14 am

Re: Test Position: Exchange or not (Javanbakht-Girish, 2012)

Post by yanquis1972 »

was this actually played otb or did you discover it?

hiarcs doesn't prefer it after 10+ mins..
1

Analysis by Deep HIARCS 14 WCSC:

17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Ne4 d5 26.Ng5 Rd7
+/- (1.12) Depth: 18/41 00:00:01 1002kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 h6 25.Rcd1 Rf8 26.Re6 Rxf4 27.Rxd6
+/- (1.25) Depth: 18/41 00:00:01 1416kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Ne4 d5 26.Nf2 Bf5 27.g4 Bc8 28.Rcd1
+/- (1.25) Depth: 19/41 00:00:01 2143kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Re3 h6 26.Rce1 Kf7 27.Kh1 Rf8 28.Ne4 Kg7 29.Nxd6 Rxf4 30.Re6 Kh7
+/- (1.20) Depth: 20/43 00:00:01 3649kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Re3 h6 26.Rce1 Rd7 27.Ne4 d5 28.Ng3 Rf7 29.Re6 Rc7 30.Kh1 Kf7
+/- (1.26) Depth: 21/43 00:00:02 5969kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Re3 b5 26.Ne4 a5 27.a3 b4 28.cxb4 axb4 29.Nf2
+/- (1.25) Depth: 22/45 00:00:03 8955kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Ne4 d5 26.Ng5 Rd7 27.Re6 Nd8 28.Re8 Bf5 29.Rce1 h6 30.Nf3 Nc6
+/- (1.23) Depth: 23/45 00:00:05 14836kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Ne4 d5 26.Ng5 Rd7 27.Re6 Nd8 28.Re8 Bf5 29.Rce1 h6 30.Nf3 Nc6 31.Rc8 Ne7 32.Ra8 Nc6 33.Rae8 Be4 34.Nd2 Bd3 35.Nf3 Be4
+/- (1.21) Depth: 24/45 00:00:08 23159kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Re3 Rd7
+/- (1.14) Depth: 25/49 00:00:19 50552kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Ne4 h6 26.Nf2 Bf5 27.g4 Bc8 28.h3 d5 29.Rcd1 h5 30.Kg2 Bb7
+/- (1.06) Depth: 26/54 00:00:38 104mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.a3 Kf6 26.Ne4+ Bxe4 27.Rxe4 d5 28.Re3 d4 29.cxd4 Rxd4 30.Rce1 Rd6 31.a4 a6
+/- (0.96) Depth: 27/56 00:02:01 311mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.a3 Kf6 26.Ne4+ Kf5 27.Ng5 Rd7 28.g3
+/- (1.21) Depth: 28/58 00:03:20 508mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Ne4 Kf7 26.Ng5+ Kg8 27.g4 Rf8 28.Nh3 h5 29.gxh5 gxh5 30.Rcd1 Rf6 31.Nf2 Bg6 32.Ne4 Rxf4 33.Nxd6 Kg7 34.Rf1
+/- (1.16) Depth: 29/61 00:04:15 676mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Nb7 22.Ng3 Bxd4+
+/- (1.12) Depth: 30/62 00:07:40 1310mN, tb=16
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Nb7 22.Ng3 Bxd4+ 23.cxd4 Bd3 24.Rfe1 Na5 25.Re6 Rd8 26.d5 Nb7 27.Ne4 Bxe4 28.Rxe4 b5 29.Re7 Nc5 30.Rxa7 Rc8 31.Rc3
+/- (1.24) Depth: 31/62 00:10:39 1797mN, tb=16

i can confirm w/ mpv-2 it does 'see' the idea, but thinks d6 slightly better.
Top
Dschmitt
Posts: 33
Joined: Thu Jul 26, 2012 8:18 am

Re: Test Position: Exchange or not (Javanbakht-Girish, 2012)

Post by Dschmitt »

Ivanhoe and Komodo 5 find it eventually. All analysis was done with 1 thread on a AMD laptop with llano based chip.

Ivanhoe:
FEN: r4rk1/p1q1p1bp/1p4p1/n2P1b2/2p1BP2/2P1B3/P3N1PP/2RQ1RK1 w - - 0 17

IvanHoe999946f Analysis:
23 01:03 75,568,472 1,203,000 +0.59 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Be3-d4 Na5-c6 Bd4xg7+ Kh8xg7 Ne2-g3 Bf5-d3 Rf1-e1 Ra8-d8 Ng3-e4 h7-h6 g2-g4 Rd8-d7 g4-g5 h6xg5 Ne4xg5 Nc6-e7 Kg1-g2 Ne7-d5 Kg2-g3 Bd3-f5 h2-h4 b6-b5 Re1-e8
23 01:15 89,854,460 1,197,000 +0.59 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Be3-d4 Na5-c6 Bd4xg7+ Kh8xg7 Ne2-g3 Bf5-d3 Rf1-e1 Ra8-d8 Ng3-e4 h7-h6 g2-g4 Rd8-d7 g4-g5 h6xg5 Ne4xg5 Nc6-e7 Kg1-g2 Ne7-d5 Kg2-g3 Bd3-f5 h2-h4 b6-b5 Re1-e8
24 01:25 102,217,286 1,206,000 +0.65 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Be3-d4 Na5-c6 Bd4xg7+ Kh8xg7 Ne2-g3 Bf5-d3 Rf1-e1 Ra8-d8 Re1-e3 Rd8-d7 Ng3-e4 Nc6-e7 Re3-e1 Ne7-d5 g2-g3 b6-b5 a2-a3 h7-h6 Kg1-f2 Rd7-d8 Kf2-g2 a7-a6 h2-h3 Bd3xe4+ Re1xe4
24 01:41 121,945,170 1,212,000 +0.65 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Be3-d4 Na5-c6 Bd4xg7+ Kh8xg7 Ne2-g3 Bf5-d3 Rf1-e1 Ra8-d8 Re1-e3 Rd8-d7 Ng3-e4 Nc6-e7 Re3-e1 Ne7-d5 g2-g3 b6-b5 a2-a3 h7-h6 Kg1-f2 Rd7-d8 Kf2-g2 a7-a6 h2-h3 Bd3xe4+ Re1xe4
25 01:58 145,992,883 1,234,000 +0.65 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Be3-d4 Na5-c6 Bd4xg7+ Kh8xg7 Ne2-g3 Bf5-d3 Rf1-e1 Ra8-d8 Re1-e3 Rd8-d7 Ng3-e4 Nc6-e7 Re3-e1 Ne7-d5 g2-g3 b6-b5 a2-a3 h7-h6 Kg1-f2 Rd7-d8 Kf2-g2 a7-a6 h2-h3 Bd3xe4+ Re1xe4
25 02:41 200,489,936 1,248,000 +0.65 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Be3-d4 Na5-c6 Bd4xg7+ Kh8xg7 Ne2-g3 Bf5-d3 Rf1-e1 Ra8-d8 Re1-e3 Rd8-d7 Ng3-e4 Nc6-e7 Re3-e1 Ne7-d5 g2-g3 b6-b5 a2-a3 h7-h6 Kg1-f2 Rd7-d8 Kf2-g2 a7-a6 h2-h3 Bd3xe4+ Re1xe4
26 03:14 243,496,627 1,255,000 +0.65 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Be3-d4 Na5-c6 Bd4xg7+ Kh8xg7 Ne2-g3 Bf5-d3 Rf1-e1 Ra8-d8 Ng3-e4 h7-h6 g2-g4 Rd8-d7 g4-g5 h6xg5 Ne4xg5 Nc6-e7 Kg1-g2 Ne7-d5 Kg2-g3 Bd3-f5 h2-h4 b6-b5 Re1-e8 Nd5-f6 Re8-e2 Nf6-h5+ Kg3-f3
26 04:32 336,071,950 1,233,000 +0.65 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Be3-d4 Na5-c6 Bd4xg7+ Kh8xg7 Ne2-g3 Bf5-d3 Rf1-e1 Ra8-d8 Ng3-e4 h7-h6 g2-g4 Rd8-d7 g4-g5 h6xg5 Ne4xg5 Nc6-e7 Kg1-g2 Ne7-d5 Kg2-g3 Bd3-f5 h2-h4 b6-b5 Re1-e8 Nd5-f6 Re8-e2 Nf6-h5+ Kg3-f3
27 05:35 414,808,148 1,236,000 +0.65 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Be3-d4 Na5-c6 Bd4xg7+ Kh8xg7 Ne2-g3 Bf5-d3 Rf1-e1 Ra8-d8 Ng3-e4 h7-h6 g2-g4 Rd8-d7 g4-g5 h6xg5 Ne4xg5 Nc6-e7 Kg1-g2 Ne7-d5 Kg2-g3 Bd3-f5 h2-h4 b6-b5 Re1-e8 Nd5-f6 Re8-e2 Nf6-h5+ Kg3-f3
27 07:55 584,082,695 1,230,000 +0.65 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Be3-d4 Na5-c6 Bd4xg7+ Kh8xg7 Ne2-g3 Bf5-d3 Rf1-e1 Ra8-d8 Ng3-e4 h7-h6 g2-g4 Rd8-d7 g4-g5 h6xg5 Ne4xg5 Nc6-e7 Kg1-g2 Ne7-d5 Kg2-g3 Bd3-f5 h2-h4 b6-b5 Re1-e8 Nd5-f6 Re8-e2 Nf6-h5+ Kg3-f3
28+ 28:31 2,059,023,969 1,203,000 +0.73 Be4xf5 Rf8xf5 g2-g4 Rf5-f7 Ne2-d4 Bg7xd4 Qd1xd4 Qc7-d6 f4-f5 g6xf5 Rf1xf5 Rf7xf5 g4xf5 Kg8-f7 Be3-f4 Qd6-c5 Qd4xc5 b6xc5 Rc1-e1 Ra8-g8+ Bf4-g3 Rg8-g5 Re1-f1
Komodo 5
FEN: r4rk1/p1q1p1bp/1p4p1/n2P1b2/2p1BP2/2P1B3/P3N1PP/2RQ1RK1 w - - 0 17

Komodo-5-64bit:
25 03:50 184,912,628 804,659 +0.86 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Ne2-d4 Bg7xd4 Be3xd4+ Kh8-g8 Rf1-e1 Na5-c6 Bd4-f2 Kg8-f7 Bf2-h4 h7-h6 h2-h3 d6-d5 Kg1-h2 Bf5-d3 Re1-e3 Ra8-f8 Rc1-e1 Bd3-e4 g2-g4 Kf7-e6 Kh2-g3 Rf8-g8 g4-g5 h6xg5 Bh4xg5 Rg8-h8 Re1-d1 Ke6-f5 Re3-e2
26 05:48 286,272,464 823,057 +0.83 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Ne2-d4 Bg7xd4 Be3xd4+ Kh8-g8 Rf1-e1 Na5-c6 Bd4-f2 Kg8-f7 Bf2-h4 h7-h6 h2-h3 d6-d5 g2-g4 Bf5-d3 Kg1-f2 Bd3-e4 Rc1-d1 Ra8-f8 Kf2-g3 Be4-d3 Re1-e3 d5-d4 c3xd4 Nc6xd4 Rd1-e1 Kf7-g8 Bh4-e7 Rf8-e8
26 07:04 347,978,842 820,262 +0.83 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Ne2-d4 Bg7xd4 Be3xd4+ Kh8-g8 Rf1-e1 Na5-c6 Bd4-f2 Kg8-f7 Bf2-h4 h7-h6 h2-h3 d6-d5 g2-g4 Bf5-d3 Kg1-f2 Bd3-e4 Rc1-d1 Ra8-f8 Kf2-g3 Be4-d3 Re1-e3 d5-d4 c3xd4 Nc6xd4 Rd1-e1 Kf7-g8 Bh4-e7 Rf8-e8
27 10:06 506,834,795 835,774 +0.81 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Ne2-d4 Bg7xd4 Be3xd4+ Kh8-g8 Rf1-e1 Na5-c6 Bd4-f2 Kg8-f7 Bf2-h4 h7-h6 h2-h3 d6-d5 g2-g4 Bf5-e4 Kg1-h2 Ra8-f8 Bh4-f2 Be4-d3 Kh2-g3 Rf8-d8 Bf2-g1 d5-d4 c3xd4 Nc6xd4 Bg1xd4 Rd8xd4 Re1-e5 Rd4-d7 a2-a4 Kf7-f6 Re5-e8
27 12:14 603,686,620 822,585 +0.81 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Ne2-d4 Bg7xd4 Be3xd4+ Kh8-g8 Rf1-e1 Na5-c6 Bd4-f2 Kg8-f7 Bf2-h4 h7-h6 h2-h3 d6-d5 g2-g4 Bf5-e4 Kg1-h2 Ra8-f8 Bh4-f2 Be4-d3 Kh2-g3 Rf8-d8 Bf2-g1 d5-d4 c3xd4 Nc6xd4 Bg1xd4 Rd8xd4 Re1-e5 Rd4-d7 a2-a4 Kf7-f6 Re5-e8
28 15:50 788,385,917 829,612 +0.81 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Ne2-d4 Bg7xd4 Be3xd4+ Kh8-g8 Rf1-e1 Na5-c6 Kg1-f2 Kg8-f7 Bd4-e3 Bf5-d3 h2-h3 Ra8-d8 g2-g4 d6-d5 Be3-d2 d5-d4 c3xd4 Nc6xd4 Bd2-c3 Rd8-d7 Re1-e3 Nd4-b5 Re3-e5 Nb5xc3 Rc1xc3 h7-h6 h3-h4 Kf7-f6 a2-a4 h6-h5 g4xh5 g6xh5 Re5xh5
28 17:49 882,184,033 825,308 +0.81 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Ne2-d4 Bg7xd4 Be3xd4+ Kh8-g8 Rf1-e1 Na5-c6 Kg1-f2 Kg8-f7 Bd4-e3 Bf5-d3 h2-h3 Ra8-d8 g2-g4 d6-d5 Be3-d2 d5-d4 c3xd4 Nc6xd4 Bd2-c3 Rd8-d7 Re1-e3 Nd4-b5 Re3-e5 Nb5xc3 Rc1xc3 h7-h6 h3-h4 Kf7-f6 a2-a4 h6-h5 g4xh5 g6xh5 Re5xh5
29 26:12 1,303,993,080 829,440 +0.78 d5-d6 Qc7xd6 Qd1xd6 e7xd6 Be4-d5+ Kg8-h8 Bd5xa8 Rf8xa8 Ne2-d4 Bg7xd4 Be3xd4+ Kh8-g8 Rf1-e1 Na5-c6 Kg1-f2 Kg8-f7 Bd4-e3 Bf5-d3 h2-h3 Ra8-d8 g2-g4 d6-d5 Be3-d2 d5-d4 c3xd4 Nc6xd4 Bd2-c3 Rd8-d7 Re1-e3 Nd4-b5 Re3-e5 Nb5xc3 Rc1xc3 h7-h6 Kf2-g3 Rd7-d8 Re5-e1 Rd8-d4 h3-h4 h6-h5
29 49:52 2,454,463,919 820,183 +0.97 Be4xf5
29 50:37 2,491,010,564 820,123 +0.96 Be4xf5 Rf8xf5
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yanquis1972
Posts: 1766
Joined: Wed Jun 03, 2009 12:14 am

Re: Test Position: Exchange or not (Javanbakht-Girish, 2012)

Post by yanquis1972 »

Analysis by Deep Rybka 4.1 SSE42 x64 LP:

17.Bxf5 Rxf5 18.Ng3 Rf7 19.Ne4 Rd8 20.Ng5 Rf6 21.Qf3 Qb7 22.Rfd1 Rf5 23.Qh3
+/= (0.54) Depth: 7 00:00:01 23kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bxa8 Rxa8
+/= (0.65 ++) Depth: 7 00:00:01 26kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bxd4 22.Bxd4+ Kg8 23.Rfe1 Nc6 24.Bf2 Kf7 25.Rcd1 Bd3
+/- (0.79) Depth: 7 00:00:01 30kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bxd4 22.Bxd4+ Kg8 23.Rfe1 Nc6 24.Bf2 Kf7 25.Rcd1 Bd3 26.Rd2 Rf8
+/- (0.73) Depth: 8 00:00:01 36kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd3 22.Rfe1 d5 23.Bf2 Be4 24.Nb5 Nc6 25.Nd6 Bd3 26.Re8+
+/= (0.67) Depth: 9 00:00:01 53kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd3 22.Rfe1 d5 23.Bf2 Be4 24.Nb5 Nc6 25.Nd6 Bd3 26.Re8+
+/= (0.67) Depth: 10 00:00:01 67kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd3 22.Rfe1 d5 23.Kf2 Kg8 24.Kg3 Be4 25.Re2 Re8 26.Kg4
+/= (0.69) Depth: 11 00:00:01 97kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd3 22.Rfe1 d5 23.Kf2 Kg8 24.Kg3 Be4 25.Bf2 Kf7 26.Nf3 Kg8
+/- (0.74) Depth: 12 00:00:02 129kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8[] 20.Bxa8[] Rxa8 21.Nd4 Bd3 22.Rfe1 d5 23.Kf2 Kg8 24.g4 Re8 25.Kg3 Be4 26.Nb5 Nc6 27.Nd6 Rd8 28.Nxe4
+/- (0.71) Depth: 13 00:00:02 236kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8[] 20.Bxa8[] Rxa8 21.Nd4 Bd7 22.Rfe1 Kg8 23.Bf2 Kf7 24.Rcd1 Bf6 25.Re3 Rd8 26.Nf3 Bg4 27.h3 Bf5 28.Ng5+
+/= (0.67) Depth: 14 00:00:02 461kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8[] 20.Bxa8[] Rxa8 21.Nd4 Bd7 22.Rfe1 Kg8 23.Bf2 Kf7 24.Nf3 h6 25.Bd4 Bf8 26.Rcd1 Bf5 27.Nh4 Bd7 28.Kf2 Be7 29.Nxg6
+/= (0.68) Depth: 15 00:00:03 623kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8[] 20.Bxa8[] Rxa8 21.Nd4 Bd7 22.Rfe1 Kg8 23.Bf2 Kf7 24.Nf3 h6 25.Bd4 Bf8 26.Rcd1 Bf5 27.Nh4 Bd7 28.Kf2 Be7 29.Nxg6
+/= (0.68) Depth: 16 00:00:04 931kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8[] 20.Bxa8[] Rxa8 21.Bd4 Nc6 22.Rfe1 Bd3 23.Kf2 Rf8 24.Bxg7+ Kxg7 25.Rcd1 Ne7
+/- (0.80 ++) Depth: 17 00:00:08 2650kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8[] 20.Bxa8[] Rxa8 21.Bd4 Nc6 22.Bxg7+ Kxg7 23.Ng3 Bd3 24.Rfe1 Rd8 25.Ne4 d5 26.Ng5 Rd6 27.Kf2 h6 28.Re6 Rxe6 29.Nxe6+ Kf6 30.Re1 Be4 31.Nc7 Kf5 32.Rd1
+/- (0.76) Depth: 17 00:00:08 2799kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8[] 20.Bxa8[] Rxa8 21.Bd4 Nc6 22.Bxg7+ Kxg7 23.Ng3 Bd3 24.Rfe1 Rd8 25.Ne4 b5 26.Nf2 Bf5 27.g4 Bc8 28.Rb1 a6 29.a4 bxa4 30.Rb6 Bd7 31.Rxa6 Rf8 32.Rxa4
+/- (0.75) Depth: 18 00:00:12 4185kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8[] 20.Bxa8[] Rxa8 21.Bd4 Nc6 22.Bxg7+ Kxg7 23.Ng3 Bd3 24.Rfe1 Rf8 25.Re6 Kf7 26.Rce1 Rd8 27.R6e3 h6 28.Kf2 Rd7 29.Ne2 Ne7 30.Rh3 Nf5 31.Nc1
+/- (0.80) Depth: 19 00:00:16 6136kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8[] 20.Bxa8[] Rxa8 21.Bd4 Nc6 22.Bxg7+ Kxg7 23.Ng3 Bd3 24.Rfe1 Rf8 25.Re6 Kf7 26.Rce1 Rd8 27.R6e3 Rd7 28.Ne4 Bxe4 29.Rxe4 d5 30.Re8 Ne7 31.Rh8 Kg7 32.Ra8
+/- (0.74) Depth: 20 00:00:25 9751kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8[] 20.Bxa8[] Rxa8 21.Bd4 Nc6 22.Bxg7+ Kxg7 23.Ng3 Bd3 24.Rfe1 Rf8 25.Re6 Kf7 26.Rce1 Rd8 27.R6e3 Rd7 28.Ne4 Bxe4 29.Rxe4 d5 30.Re8 Ne7 31.Rh8 Kg7 32.Ra8
+/- (0.74) Depth: 21 00:00:40 16612kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8[] 20.Bxa8[] Rxa8 21.Bd4 Nc6 22.Bxg7+ Kxg7 23.Ng3 Bd3 24.Rfe1 Rf8 25.Re6 Kf7 26.Rce1 Rd8 27.R6e3 Rd7 28.Ne4 Bxe4 29.Rxe4 d5 30.Re8 Ne7 31.Rh8 Kg7 32.Ra8
+/- (0.75) Depth: 22 00:01:06 27688kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8[] 20.Bxa8[] Rxa8 21.Bd4 Nc6 22.Bxg7+ Kxg7 23.Ng3 Bd3 24.Rfe1 Rf8 25.Re6 Kf7 26.Rce1 Rd8 27.R6e3 Rd7 28.Ne4 Bxe4 29.Rxe4 d5 30.Re8 Ne7 31.Rh8 Kg7 32.Ra8
+/- (0.75) Depth: 23 00:01:31 38462kN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Rd8 21.f5 Qc5 22.Qxc5 bxc5 23.fxg6 hxg6 24.Rcd1 Nb7 25.Rfe1 Rd6 26.Bg5 Rd7 27.Re6 Kg7 28.a4 Nd6 29.Be3 Rc7 30.Re1 Rf6 31.Bg5 Rxe6
+/- (0.87 ++) Depth: 23 00:03:56 93154kN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Rd8 21.f5 Qc5 22.Qxc5 bxc5 23.fxg6 hxg6 24.Rcd1 Nb7 25.Rfe1 Rd6 26.Bg5 Rd7 27.Re6 Kg7 28.a4 Nd6 29.Be3 Rc7 30.Rf1 a5 31.Rxf7+ Kxf7 32.Kg2
+/- (1.02 ++) Depth: 23 00:05:38 134mN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Rd8 21.f5 Qd6 22.Rcd1 Nb7 23.Qxc4 gxf5 24.Rxf5[] Rxf5 25.gxf5[] Qf6 26.Qe2 Qxf5 27.Rf1 Qg6+ 28.Kh1[] Qe4+ 29.Rf3[] Rxd5 30.Bh6 Qb1+ 31.Rf1
+/- (1.09) Depth: 23 00:12:07 301mN, tb=7


critter does very well --

Analysis by Critter 1.6a 64-bit GTB:

17.Bxf5 Rxf5 18.Ng3 Rff8 19.Ne4 Nb7 20.Qg4 Nd6 21.Qe6+ Rf7
+/= (0.66) Depth: 7/10 00:00:00 9kN
17.Bxf5 Rxf5 18.Ng3 Rff8 19.Ne4 Nb7 20.Qg4 Nd6 21.Qe6+ Rf7
+/= (0.57 --) Depth: 8/12 00:00:00 17kN
17.Bxf5 Rxf5 18.Ng3 Rff8 19.Ne4 Rad8 20.Qg4 Qd7 21.Qxd7 Rxd7
+/= (0.50) Depth: 8/12 00:00:00 21kN
17.Bxf5 Rxf5 18.Ng3 Rff8 19.Qg4 Qd6 20.Rfd1 h5 21.Qe2 h4
+/= (0.51) Depth: 9/13 00:00:00 33kN
17.Bxf5 Rxf5 18.Ng3 Rff8 19.Qg4 Rad8 20.Qe6+ Kh8 21.Qe4 Qd7 22.Rfd1 Kg8 23.Rd2 Qd6
+/= (0.48) Depth: 10/18 00:00:00 79kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd3 22.Rfe1 Re8 23.Nb5
+/= (0.60 ++) Depth: 10/18 00:00:00 113kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd3 22.Rfe1 Re8 23.Bf2
+/- (0.73 ++) Depth: 10/19 00:00:00 131kN
17.d6 Qxd6 18.Bd5+ Be6 19.Bxa8 Rxa8 20.Bd4 Nc6 21.Bxg7 Kxg7 22.Qxd6 exd6 23.Rfe1 Bf5 24.Rcd1 Rd8
+/= (0.62) Depth: 10/19 00:00:00 145kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Rfe1 Nb7 23.Bd2 Nc5 24.Re7 Bf8 25.Rf7 Re8
+/= (0.60) Depth: 11/22 00:00:00 226kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Rfe1 Nb7 23.Bd2 Nc5 24.Re7 Bf8 25.Rf7 Re8 26.Re1 Kg8 27.Rxe8 Kxf7
+/= (0.69 ++) Depth: 12/25 00:00:00 274kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.f5 Re8 23.Bf4 Bxd4+ 24.cxd4 Bxf5 25.Bxd6 Kg8 26.Bb4 Bd3 27.Rf6 Kg7 28.Rd6 Rf8 29.Bxa5 bxa5 30.Rd7+ Rf7
+/= (0.61) Depth: 12/28 00:00:00 341kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.f5 Re8 23.Bf4 Bxd4+ 24.cxd4 Bxf5 25.Bxd6 Kg8 26.Bb4 Bd3 27.Rf6 Kg7 28.Rd6 Rf8 29.Bxa5 bxa5 30.Rd7+ Rf7
+/= (0.61) Depth: 13/28 00:00:00 476kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.f5 Re8 23.f6 Rxe3 24.fxg7+ Kxg7 25.Rfe1 Rxe1+ 26.Rxe1 Kf6 27.Rf1+ Kg7
+/= (0.69) Depth: 14/32 00:00:00 712kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.f5 Re8 23.f6 Rxe3 24.fxg7+ Kxg7 25.Rfe1 Rxe1+ 26.Rxe1 Kf6 27.Rf1+ Kg7 28.Kf2 Nc6 29.Nb5 Nb4 30.Nxd6 Nxa2 31.Ke3
+/- (0.78 ++) Depth: 15/32 00:00:00 1086kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Rfe1 Kg8 23.Bf2 Nc6 24.Nxc6 Bxc6 25.Re7 Bh6 26.Bg3 Bg7 27.Rc7 Bd5
+/= (0.70) Depth: 15/32 00:00:00 1335kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Rfe1 Kg8 23.Bf2 Nc6 24.Nxc6 Bxc6 25.Re7 Bh6 26.Bg3 Bg7 27.Rc7 Bd5 28.Bf2
+/- (0.78 ++) Depth: 16/32 00:00:00 1845kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bxd4 22.Bxd4+ Kg8 23.Rfe1 Nc6 24.Rcd1 Bd3 25.Bf6 Kf7 26.Bg5 d5 27.Kf2 Be4 28.Rd2 Re8 29.a4 d4
+/= (0.67) Depth: 16/32 00:00:00 2640kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Nc6 22.Bxg7+ Kxg7 23.Ng3 Bd3 24.Rfe1 Kf7 25.Ne4 Bxe4 26.Rxe4 d5 27.Re3 Rd8 28.Rce1 Rd6 29.Re8 d4 30.cxd4 Rxd4 31.Rc8 Nb4 32.Rc7+ Kf6 33.Rxh7 Rxf4 34.g3
+/= (0.59) Depth: 17/39 00:00:01 5790kN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Qd6 21.Qe4 Raf8 22.f5 Nb7 23.Rce1 Nc5 24.Qxc4 gxf5 25.Rxf5 Rxf5 26.gxf5 Rxf5 27.Qg4+ Qg6 28.Qxg6+ hxg6 29.Bxc5 bxc5 30.Rxe7 Rxd5 31.Rxa7
+/= (0.64) Depth: 17/40 00:00:01 8231kN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Qd6 21.Qe4 Raf8 22.f5 Nb7 23.Rce1 Nc5 24.Qxc4 gxf5 25.Rxf5 Rxf5 26.gxf5 Rxf5 27.Qg4+ Qg6 28.Qxg6+ hxg6 29.Bxc5 bxc5 30.Rxe7 Rxd5 31.Rxa7 Rd2
+/- (0.73 ++) Depth: 18/40 00:00:01 11686kN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Rd8 21.Rcd1 Rg7 22.Qe4 Nb7 23.Qe6+ Rf7 24.f5 Nc5 25.Bxc5 Qxc5+ 26.Kg2 g5 27.Qc6 Rc8 28.Qxc5 Rxc5 29.Rfe1 Ra5 30.Re2 Kg7
+/= (0.69) Depth: 18/41 00:00:02 14804kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Nc6 22.Bxg7+ Kxg7 23.Ng3 Bd3 24.Rfe1 Rf8 25.Re6 Rxf4 26.Rxd6 Nb8 27.Rd8 Na6 28.Rd7+ Rf7 29.Rxf7+ Kxf7 30.Kf2 Nc5 31.Ne2 Ne4+ 32.Ke3 Kg7
+/= (0.67) Depth: 19/41 00:00:03 24138kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Nc6 22.Bxg7+ Kxg7 23.Ng3 Bd3 24.Rfe1 Rf8 25.Re6 Rxf4 26.Rxd6 Nb8 27.Rd8 Na6 28.Rd7+ Rf7 29.Rxf7+ Kxf7 30.Kf2 Nc5 31.Ne2 Ne4+ 32.Ke3 Kg7
+/= (0.67) Depth: 20/41 00:00:03 30830kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 d5 22.Bxg7+ Kxg7 23.Nd4 Be4 24.f5 Re8 25.Rce1 g5 26.Re3 h5 27.f6+ Kf7 28.Nb5 Nb7 29.Nxa7 Re6 30.Nb5 Rxf6 31.Rxf6+ Kxf6 32.Re1
+/- (0.74) Depth: 21/43 00:00:05 51663kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 d5 22.Bxg7+ Kxg7 23.Nd4 Be4 24.f5 Re8 25.Rce1 g5 26.Re3 h5 27.Nb5 Kf6 28.Nd6 Re5 29.Rfe1 Nc6 30.Nxe4+ dxe4 31.Rxe4 Kxf5 32.Rxe5+ Nxe5 33.Rf1+ Ke4
+/- (0.73) Depth: 22/43 00:00:07 71055kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 d5 22.Bxg7+ Kxg7 23.Nd4 Be4 24.Ne6+ Kf6 25.Ng5 h6 26.Nxe4+ dxe4 27.Rfe1 Kf5 28.Rcd1 Kxf4 29.Rd6 Nb7 30.Rxg6
+/= (0.66) Depth: 23/49 00:00:12 125mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 d5 22.Bxg7+ Kxg7 23.Nd4 Be4 24.f5 Re8 25.Rf2 Bd3 26.f6+ Kf7 27.Nb5 Nb7 28.Nxa7 Nc5 29.Rb2 Kxf6 30.Rxb6+ Kf5 31.Rb2
+/= (0.70) Depth: 24/50 00:00:23 257mN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Rd8 21.Rcd1 Rg7 22.Qe4 Nb7 23.Qe6+ Rf7 24.f5 Nc5 25.Bxc5 Qxc5+ 26.Kg2 g5 27.Qc6 Rc8 28.Qxc5 Rxc5 29.Rfe1 Ra5 30.Re2 Kg7
+/- (0.74 ++) Depth: 24/51 00:00:45 482mN
17.Bxf5 Rxf5 18.g4 Rf7 19.Nd4 Bxd4 20.Qxd4 Rd8 21.Rcd1 Nb7 22.f5 Nd6 23.fxg6 hxg6 24.Rxf7 Nxf7 25.Qe4 Qd6 26.a4 Kh7 27.Qxc4 Qe5 28.Bf4 Nd6 29.Qd4 Qxd4+ 30.Rxd4 Rc8 31.Bg5 Rc7 32.Kg2 Kg7 33.Bd2 Rc5 34.Kf3 g5
+/- (0.81) Depth: 24/58 00:01:04 677mN
Top
Albert Silver
Posts: 3026
Joined: Wed Mar 08, 2006 9:57 pm
Location: Rio de Janeiro, Brazil

Re: Test Position: Exchange or not (Javanbakht-Girish, 2012)

Post by Albert Silver »

yanquis1972 wrote:was this actually played otb or did you discover it?
I found it, and it was not played.

hiarcs doesn't prefer it after 10+ mins..
1

Analysis by Deep HIARCS 14 WCSC:

17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Ne4 d5 26.Ng5 Rd7
+/- (1.12) Depth: 18/41 00:00:01 1002kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 h6 25.Rcd1 Rf8 26.Re6 Rxf4 27.Rxd6
+/- (1.25) Depth: 18/41 00:00:01 1416kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Ne4 d5 26.Nf2 Bf5 27.g4 Bc8 28.Rcd1
+/- (1.25) Depth: 19/41 00:00:01 2143kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Re3 h6 26.Rce1 Kf7 27.Kh1 Rf8 28.Ne4 Kg7 29.Nxd6 Rxf4 30.Re6 Kh7
+/- (1.20) Depth: 20/43 00:00:01 3649kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Re3 h6 26.Rce1 Rd7 27.Ne4 d5 28.Ng3 Rf7 29.Re6 Rc7 30.Kh1 Kf7
+/- (1.26) Depth: 21/43 00:00:02 5969kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Re3 b5 26.Ne4 a5 27.a3 b4 28.cxb4 axb4 29.Nf2
+/- (1.25) Depth: 22/45 00:00:03 8955kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Ne4 d5 26.Ng5 Rd7 27.Re6 Nd8 28.Re8 Bf5 29.Rce1 h6 30.Nf3 Nc6
+/- (1.23) Depth: 23/45 00:00:05 14836kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Ne4 d5 26.Ng5 Rd7 27.Re6 Nd8 28.Re8 Bf5 29.Rce1 h6 30.Nf3 Nc6 31.Rc8 Ne7 32.Ra8 Nc6 33.Rae8 Be4 34.Nd2 Bd3 35.Nf3 Be4
+/- (1.21) Depth: 24/45 00:00:08 23159kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Re3 Rd7
+/- (1.14) Depth: 25/49 00:00:19 50552kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Ne4 h6 26.Nf2 Bf5 27.g4 Bc8 28.h3 d5 29.Rcd1 h5 30.Kg2 Bb7
+/- (1.06) Depth: 26/54 00:00:38 104mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.a3 Kf6 26.Ne4+ Bxe4 27.Rxe4 d5 28.Re3 d4 29.cxd4 Rxd4 30.Rce1 Rd6 31.a4 a6
+/- (0.96) Depth: 27/56 00:02:01 311mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.a3 Kf6 26.Ne4+ Kf5 27.Ng5 Rd7 28.g3
+/- (1.21) Depth: 28/58 00:03:20 508mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Bd3 22.Bxg7+ Kxg7 23.Rfe1 Nc6 24.Ng3 Rd8 25.Ne4 Kf7 26.Ng5+ Kg8 27.g4 Rf8 28.Nh3 h5 29.gxh5 gxh5 30.Rcd1 Rf6 31.Nf2 Bg6 32.Ne4 Rxf4 33.Nxd6 Kg7 34.Rf1
+/- (1.16) Depth: 29/61 00:04:15 676mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Nb7 22.Ng3 Bxd4+
+/- (1.12) Depth: 30/62 00:07:40 1310mN, tb=16
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Nb7 22.Ng3 Bxd4+ 23.cxd4 Bd3 24.Rfe1 Na5 25.Re6 Rd8 26.d5 Nb7 27.Ne4 Bxe4 28.Rxe4 b5 29.Re7 Nc5 30.Rxa7 Rc8 31.Rc3
+/- (1.24) Depth: 31/62 00:10:39 1797mN, tb=16

i can confirm w/ mpv-2 it does 'see' the idea, but thinks d6 slightly better.
"Tactics are the bricks and sticks that make up a game, but positional play is the architectural blueprint."
Top
Yoav Dothan
Posts: 2
Joined: Wed Apr 29, 2015 7:08 am
Location: Israel

Re: Test Position: Exchange or not (Javanbakht-Girish, 2012)

Post by Yoav Dothan »

Komodo 9 finds it much faster:

New game
r4rk1/p1q1p1bp/1p4p1/n2P1b2/2p1BP2/2P1B3/P3N1PP/2RQ1RK1 w - - 0 1

Analysis by Komodo 9 64-bit1:

17.Bxf5
+/- (0.71) Depth: 6 00:00:00 18kN
17.Bxf5 Rxf5 18.Ng3 Rff8 19.f5 Qe5 20.Bf4
+/- (0.74) Depth: 6 00:00:00 20kN
17.Bxf5
+/- (0.81) Depth: 7 00:00:00 24kN
17.Bxf5
+/- (1.00) Depth: 7 00:00:00 25kN
17.Bxf5
+/- (1.12) Depth: 7 00:00:00 27kN
17.Bxf5 Rxf5
+/- (0.92) Depth: 7 00:00:00 29kN
17.d6 Qxd6
+/- (0.94) Depth: 7 00:00:00 29kN
17.d6 Qxd6
+/- (0.72) Depth: 7 00:00:00 34kN
17.Bxf5 Rxf5 18.Ng3 Rf7 19.Ne4 Rf5 20.d6 exd6
+/- (0.84) Depth: 7 00:00:00 36kN
17.Bxf5 Rxf5
+/- (0.77) Depth: 8 00:00:00 40kN
17.d6
+/- (0.91) Depth: 8 00:00:00 43kN
17.d6
+/- (0.98) Depth: 8 00:00:00 45kN
17.d6 Qxd6 18.Bd5+ Kh8 19.Bxa8 Rxa8 20.Qxd6 exd6 21.Nd4 Bd3
+/- (1.01) Depth: 8 00:00:00 47kN
17.d6 Qxd6
+/- (0.94) Depth: 9 00:00:00 52kN
17.d6 Qxd6 18.Bd5+ Kh8 19.Bxa8 Rxa8 20.Qxd6 exd6 21.Nd4 Bd3 22.Rfd1 Kg8
+/- (0.94) Depth: 9 00:00:00 55kN
17.d6
+/- (1.01) Depth: 10 00:00:00 66kN
17.d6
+/- (1.08) Depth: 10 00:00:00 66kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd3 22.Rfe1 Re8 23.Nb5 Nb7
+/- (1.08) Depth: 10 00:00:00 69kN
17.d6 Qxd6
+/- (1.01) Depth: 11 00:00:00 81kN
17.d6 Qxd6
+/- (0.94) Depth: 11 00:00:00 86kN
17.d6
+/- (1.01) Depth: 11 00:00:00 98kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd3 22.Rfd1 Re8 23.Re1 Nb7 24.Rcd1
+/- (1.01) Depth: 11 00:00:00 101kN
17.d6 Qxd6 18.Bd5+ Be6 19.Bxa8 Rxa8 20.Nd4 Bd7 21.Qf3 Rf8 22.Qe4 Rd8 23.f5 Bxd4 24.Qxd4 Bxf5
+/- (1.00) Depth: 12 00:00:00 166kN
17.d6
+/- (1.07) Depth: 13 00:00:00 301kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Rfe1 Rf8 22.Nd4 Bd7 23.Bf2 Nb7 24.Ne6 Bxe6 25.Rxe6 Nc5 26.Bxc5
+/- (1.07) Depth: 13 00:00:00 338kN
17.d6 Qxd6
+/- (1.00) Depth: 14 00:00:00 416kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.f5 Re8 23.Bf4 Bxd4+ 24.cxd4 Bxf5 25.Bxd6 Kg8 26.Bb4 Bd3 27.Rfe1 Rd8 28.Re7
+/- (1.01) Depth: 14 00:00:00 490kN
17.d6
+/- (1.08) Depth: 15 00:00:00 538kN
17.d6 Qxd6
+/- (1.01) Depth: 15 00:00:00 699kN
17.d6 Qxd6 18.Bd5+ Kh8 19.Bxa8 Rxa8 20.Qxd6 exd6 21.Bd4 Bd3 22.Rfe1 Nc6 23.Bxg7+ Kxg7 24.Ng3 Rf8 25.Ne4 Rxf4 26.Nxd6 Rf8 27.Re6
+/- (1.05) Depth: 15 00:00:00 1167kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Nb7 22.Bxg7+ Kxg7 23.Nd4 Nc5 24.Rce1 Kf6 25.Nb5 Nd3 26.Re3 d5 27.g3 h6 28.Nc7 Rd8 29.Rd1
+/- (0.99) Depth: 16 00:00:00 1593kN
17.d6
+/- (1.06) Depth: 17 00:00:00 1934kN
17.d6 Qxd6
+/- (0.99) Depth: 17 00:00:00 2138kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Nf3 Rf8 23.Rfe1 Kg8 24.g3 Nc6 25.Bd4 Nxd4 26.Nxd4 Bxd4+ 27.cxd4 d5 28.Re5 Rf5 29.Kg2
+/- (1.05) Depth: 17 00:00:00 2643kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Rfe1 Kg8 23.g3 Bf6 24.Kg2 Kf7 25.Nf3 Bc6 26.Kf2 Nb7 27.Bd4 Nc5 28.Bxc5
+/- (1.02) Depth: 18 00:00:00 4124kN
17.d6
+/- (1.09) Depth: 19 00:00:00 4323kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Nf3 Rf8 23.Rfe1 Kg8 24.g3 Nc6 25.Bd4 Nxd4 26.Nxd4 Bxd4+ 27.cxd4 d5 28.Re5 Rf5 29.Kf2
+/- (1.13) Depth: 19 00:00:01 4946kN
17.d6 Qxd6
+/- (1.06) Depth: 20 00:00:01 6263kN
17.d6 Qxd6
+/- (0.99) Depth: 20 00:00:01 8932kN
17.d6
+/- (1.06) Depth: 20 00:00:02 9685kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Nf3 Nc6 23.Rfd1 Bf8 24.Rd2 Re8 25.Kf2 Kg8 26.Re1 h6 27.h3 Bf5 28.g4 Be4 29.Kg3 Bg7
+/- (1.12) Depth: 20 00:00:02 11382kN
17.d6 Qxd6
+/- (1.05) Depth: 21 00:00:03 15903kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Nf3 Rf8 23.Rfe1 Kg8 24.g3 Nc6 25.Bd4 Nxd4 26.Nxd4 Bf6 27.Rcd1 Bg4 28.Rd2 g5 29.fxg5 Bxg5 30.Rf2
+/- (1.06) Depth: 21 00:00:03 17484kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Nf3 Rf8 23.Rfe1 Kg8 24.g3 Nc6 25.Bd4 Nxd4 26.Nxd4 Bf6 27.Rcd1 Bg4 28.Rd2 g5 29.fxg5 Bxg5 30.Rf2 Bf6
+/- (1.07) Depth: 22 00:00:04 18899kN
17.d6 Qxd6
+/- (1.00) Depth: 23 00:00:06 36480kN
17.Bxf5
+/- (1.14) Depth: 23 00:00:08 46221kN
17.Bxf5
+/- (1.21) Depth: 23 00:00:16 80822kN
17.Bxf5 Rxf5 18.g4 Rf6 19.Nd4 Rd8 20.g5 Rfd6 21.Nb5 Qb7 22.Nxd6 Rxd6 23.Qe2 Qxd5 24.Bf2 Qf7 25.Rfd1 Nb7 26.Qe4 Rxd1+ 27.Rxd1 Nd6 28.Qa8+ Qf8 29.Qxf8+ Kxf8 30.Bd4 Ne4 31.Kg2 Nxc3 32.Bxc3 Bxc3 33.Rc1 Bd2 34.Rxc4 Kf7
+/- (1.24) Depth: 23 00:00:19 97855kN
17.Bxf5 Rxf5
+/- (1.17) Depth: 24 00:00:21 107mN
17.Bxf5 Rxf5
+/- (1.10) Depth: 24 00:00:24 120mN
17.Bxf5 Rxf5
+/- (1.00) Depth: 24 00:00:28 144mN
17.d6
+/- (1.17) Depth: 24 00:00:31 156mN
17.d6 Qxd6
+/- (1.08) Depth: 24 00:00:31 158mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Bf2 Kg8 23.Rfe1 Bf6 24.Nf3 Rf8 25.g3 Nc6 26.Red1 Be7 27.Rd2 Bf5 28.Re1 Bd3 29.Nd4 Bf6 30.Nxc6 Bxc3 31.Be3 Bxd2 32.Bxd2 Bf5 33.Nxa7
+/- (1.07) Depth: 24 00:00:32 164mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Rfe1 Kg8 23.Bf2 Bf6 24.Nf3 Rf8 25.g3 Nc6 26.Red1 Be7 27.Rd2 Rf7 28.Kg2 h6 29.Re1 Bf5 30.Nd4 Nxd4 31.Rxd4 Bf6 32.Rxc4 d5 33.Rc6
+/- (1.13) Depth: 25 00:00:37 183mN
17.d6 Qxd6
+/- (1.06) Depth: 26 00:00:43 215mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Rfe1 Nc6 22.Nd4 Nxd4 23.Bxd4 Bxd4+ 24.cxd4 d5 25.Re5 Be4 26.Re7 b5 27.Kf2 Kg8 28.Rb7 a6 29.g3 h6 30.a3 g5 31.Rc7 Rf8 32.Ke3 Re8 33.fxg5 Bg6+ 34.Kd2 hxg5
+/- (1.02) Depth: 26 00:00:48 240mN
17.d6 Qxd6
+/- (0.95) Depth: 27 00:01:01 301mN

(, Microsoft 07.05.2015)
Yoav
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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: Exchange or not (Javanbakht-Girish, 2012)

Post by zullil »

Yoav Dothan wrote:Komodo 9 finds it much faster:

New game
r4rk1/p1q1p1bp/1p4p1/n2P1b2/2p1BP2/2P1B3/P3N1PP/2RQ1RK1 w - - 0 1

Analysis by Komodo 9 64-bit1:

17.Bxf5
+/- (0.71) Depth: 6 00:00:00 18kN
17.Bxf5 Rxf5 18.Ng3 Rff8 19.f5 Qe5 20.Bf4
+/- (0.74) Depth: 6 00:00:00 20kN
17.Bxf5
+/- (0.81) Depth: 7 00:00:00 24kN
17.Bxf5
+/- (1.00) Depth: 7 00:00:00 25kN
17.Bxf5
+/- (1.12) Depth: 7 00:00:00 27kN
17.Bxf5 Rxf5
+/- (0.92) Depth: 7 00:00:00 29kN
17.d6 Qxd6
+/- (0.94) Depth: 7 00:00:00 29kN
17.d6 Qxd6
+/- (0.72) Depth: 7 00:00:00 34kN
17.Bxf5 Rxf5 18.Ng3 Rf7 19.Ne4 Rf5 20.d6 exd6
+/- (0.84) Depth: 7 00:00:00 36kN
17.Bxf5 Rxf5
+/- (0.77) Depth: 8 00:00:00 40kN
17.d6
+/- (0.91) Depth: 8 00:00:00 43kN
17.d6
+/- (0.98) Depth: 8 00:00:00 45kN
17.d6 Qxd6 18.Bd5+ Kh8 19.Bxa8 Rxa8 20.Qxd6 exd6 21.Nd4 Bd3
+/- (1.01) Depth: 8 00:00:00 47kN
17.d6 Qxd6
+/- (0.94) Depth: 9 00:00:00 52kN
17.d6 Qxd6 18.Bd5+ Kh8 19.Bxa8 Rxa8 20.Qxd6 exd6 21.Nd4 Bd3 22.Rfd1 Kg8
+/- (0.94) Depth: 9 00:00:00 55kN
17.d6
+/- (1.01) Depth: 10 00:00:00 66kN
17.d6
+/- (1.08) Depth: 10 00:00:00 66kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd3 22.Rfe1 Re8 23.Nb5 Nb7
+/- (1.08) Depth: 10 00:00:00 69kN
17.d6 Qxd6
+/- (1.01) Depth: 11 00:00:00 81kN
17.d6 Qxd6
+/- (0.94) Depth: 11 00:00:00 86kN
17.d6
+/- (1.01) Depth: 11 00:00:00 98kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd3 22.Rfd1 Re8 23.Re1 Nb7 24.Rcd1
+/- (1.01) Depth: 11 00:00:00 101kN
17.d6 Qxd6 18.Bd5+ Be6 19.Bxa8 Rxa8 20.Nd4 Bd7 21.Qf3 Rf8 22.Qe4 Rd8 23.f5 Bxd4 24.Qxd4 Bxf5
+/- (1.00) Depth: 12 00:00:00 166kN
17.d6
+/- (1.07) Depth: 13 00:00:00 301kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Rfe1 Rf8 22.Nd4 Bd7 23.Bf2 Nb7 24.Ne6 Bxe6 25.Rxe6 Nc5 26.Bxc5
+/- (1.07) Depth: 13 00:00:00 338kN
17.d6 Qxd6
+/- (1.00) Depth: 14 00:00:00 416kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.f5 Re8 23.Bf4 Bxd4+ 24.cxd4 Bxf5 25.Bxd6 Kg8 26.Bb4 Bd3 27.Rfe1 Rd8 28.Re7
+/- (1.01) Depth: 14 00:00:00 490kN
17.d6
+/- (1.08) Depth: 15 00:00:00 538kN
17.d6 Qxd6
+/- (1.01) Depth: 15 00:00:00 699kN
17.d6 Qxd6 18.Bd5+ Kh8 19.Bxa8 Rxa8 20.Qxd6 exd6 21.Bd4 Bd3 22.Rfe1 Nc6 23.Bxg7+ Kxg7 24.Ng3 Rf8 25.Ne4 Rxf4 26.Nxd6 Rf8 27.Re6
+/- (1.05) Depth: 15 00:00:00 1167kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Bd4 Nb7 22.Bxg7+ Kxg7 23.Nd4 Nc5 24.Rce1 Kf6 25.Nb5 Nd3 26.Re3 d5 27.g3 h6 28.Nc7 Rd8 29.Rd1
+/- (0.99) Depth: 16 00:00:00 1593kN
17.d6
+/- (1.06) Depth: 17 00:00:00 1934kN
17.d6 Qxd6
+/- (0.99) Depth: 17 00:00:00 2138kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Nf3 Rf8 23.Rfe1 Kg8 24.g3 Nc6 25.Bd4 Nxd4 26.Nxd4 Bxd4+ 27.cxd4 d5 28.Re5 Rf5 29.Kg2
+/- (1.05) Depth: 17 00:00:00 2643kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Rfe1 Kg8 23.g3 Bf6 24.Kg2 Kf7 25.Nf3 Bc6 26.Kf2 Nb7 27.Bd4 Nc5 28.Bxc5
+/- (1.02) Depth: 18 00:00:00 4124kN
17.d6
+/- (1.09) Depth: 19 00:00:00 4323kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Nf3 Rf8 23.Rfe1 Kg8 24.g3 Nc6 25.Bd4 Nxd4 26.Nxd4 Bxd4+ 27.cxd4 d5 28.Re5 Rf5 29.Kf2
+/- (1.13) Depth: 19 00:00:01 4946kN
17.d6 Qxd6
+/- (1.06) Depth: 20 00:00:01 6263kN
17.d6 Qxd6
+/- (0.99) Depth: 20 00:00:01 8932kN
17.d6
+/- (1.06) Depth: 20 00:00:02 9685kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Nf3 Nc6 23.Rfd1 Bf8 24.Rd2 Re8 25.Kf2 Kg8 26.Re1 h6 27.h3 Bf5 28.g4 Be4 29.Kg3 Bg7
+/- (1.12) Depth: 20 00:00:02 11382kN
17.d6 Qxd6
+/- (1.05) Depth: 21 00:00:03 15903kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Nf3 Rf8 23.Rfe1 Kg8 24.g3 Nc6 25.Bd4 Nxd4 26.Nxd4 Bf6 27.Rcd1 Bg4 28.Rd2 g5 29.fxg5 Bxg5 30.Rf2
+/- (1.06) Depth: 21 00:00:03 17484kN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Nf3 Rf8 23.Rfe1 Kg8 24.g3 Nc6 25.Bd4 Nxd4 26.Nxd4 Bf6 27.Rcd1 Bg4 28.Rd2 g5 29.fxg5 Bxg5 30.Rf2 Bf6
+/- (1.07) Depth: 22 00:00:04 18899kN
17.d6 Qxd6
+/- (1.00) Depth: 23 00:00:06 36480kN
17.Bxf5
+/- (1.14) Depth: 23 00:00:08 46221kN
17.Bxf5
+/- (1.21) Depth: 23 00:00:16 80822kN
17.Bxf5 Rxf5 18.g4 Rf6 19.Nd4 Rd8 20.g5 Rfd6 21.Nb5 Qb7 22.Nxd6 Rxd6 23.Qe2 Qxd5 24.Bf2 Qf7 25.Rfd1 Nb7 26.Qe4 Rxd1+ 27.Rxd1 Nd6 28.Qa8+ Qf8 29.Qxf8+ Kxf8 30.Bd4 Ne4 31.Kg2 Nxc3 32.Bxc3 Bxc3 33.Rc1 Bd2 34.Rxc4 Kf7
+/- (1.24) Depth: 23 00:00:19 97855kN
17.Bxf5 Rxf5
+/- (1.17) Depth: 24 00:00:21 107mN
17.Bxf5 Rxf5
+/- (1.10) Depth: 24 00:00:24 120mN
17.Bxf5 Rxf5
+/- (1.00) Depth: 24 00:00:28 144mN
17.d6
+/- (1.17) Depth: 24 00:00:31 156mN
17.d6 Qxd6
+/- (1.08) Depth: 24 00:00:31 158mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Bf2 Kg8 23.Rfe1 Bf6 24.Nf3 Rf8 25.g3 Nc6 26.Red1 Be7 27.Rd2 Bf5 28.Re1 Bd3 29.Nd4 Bf6 30.Nxc6 Bxc3 31.Be3 Bxd2 32.Bxd2 Bf5 33.Nxa7
+/- (1.07) Depth: 24 00:00:32 164mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Nd4 Bd7 22.Rfe1 Kg8 23.Bf2 Bf6 24.Nf3 Rf8 25.g3 Nc6 26.Red1 Be7 27.Rd2 Rf7 28.Kg2 h6 29.Re1 Bf5 30.Nd4 Nxd4 31.Rxd4 Bf6 32.Rxc4 d5 33.Rc6
+/- (1.13) Depth: 25 00:00:37 183mN
17.d6 Qxd6
+/- (1.06) Depth: 26 00:00:43 215mN
17.d6 Qxd6 18.Qxd6 exd6 19.Bd5+ Kh8 20.Bxa8 Rxa8 21.Rfe1 Nc6 22.Nd4 Nxd4 23.Bxd4 Bxd4+ 24.cxd4 d5 25.Re5 Be4 26.Re7 b5 27.Kf2 Kg8 28.Rb7 a6 29.g3 h6 30.a3 g5 31.Rc7 Rf8 32.Ke3 Re8 33.fxg5 Bg6+ 34.Kd2 hxg5
+/- (1.02) Depth: 26 00:00:48 240mN
17.d6 Qxd6
+/- (0.95) Depth: 27 00:01:01 301mN

(, Microsoft 07.05.2015)
Latest Stockfish also finds it very quickly:

Code: Select all

info depth 15 seldepth 26 multipv 1 score cp 66 nodes 877815 nps 489852 hashfull 0 tbhits 0 time 1792 pv e4f5 f8f5 g2g4 f5f7 e2d4 g7d4 d1d4 c7d6 d4e4 a8d8 c1d1 a5b7 f4f5 g6f5 f1f5 f7f5 g4f5 g8f7 e4c4
info depth 16 seldepth 28 multipv 1 score cp 82 nodes 1169275 nps 637902 hashfull 1 tbhits 0 time 1833 pv e4f5 f8f5 g2g4 f5f7 e2d4 g7d4 d1d4 a8d8 f4f5 c7d6 c1d1 g6f5 f1f5 f7f5 g4f5 d6f6 d4e4 f6g7 g1h1 a5b7 e3d4
info depth 17 seldepth 30 multipv 1 score cp 91 nodes 1499912 nps 803380 hashfull 1 tbhits 0 time 1867 pv e4f5 f8f5 g2g4 f5f7 e2d4 g7d4 d1d4 c7d6 d4e4 a5b7 e4c4 a8d8 c1d1 d6d7 c4e2 d7c8 g1h1 c8c3 e3d4
info depth 18 seldepth 30 multipv 1 score cp 98 nodes 2028417 nps 1058672 hashfull 1 tbhits 0 time 1916 pv e4f5 f8f5 g2g4 f5f7 e2d4 g7d4 d1d4 c7d6 d4e4 a8f8 g1h1 f8c8 f4f5 a5b7 e3f4 b7c5 e4d4 d6d7 f5g6 h7g6 f4h6
info depth 19 seldepth 30 multipv 1 score cp 83 nodes 3112746 nps 1554818 hashfull 2 tbhits 0 time 2002 pv e4f5 f8f5 g2g4 f5f7 e2d4 g7d4 d1d4 c7d6 d4e4 a8f8 g1h1 d6f6 e3d4 f6d6 f4f5 a5b7 e4e6 b7c5 d4c5 b6c5 h1g2 g6f5
info depth 20 seldepth 30 multipv 1 score cp 90 nodes 4776299 nps 2227751 hashfull 2 tbhits 0 time 2144 pv e4f5 f8f5 g2g4 f5f7 e2d4 g7d4 d1d4 c7d6 d4e4 a5b7 e4c4 d6d7 h2h3 a8d8 c1d1 d8c8 c4d3 d7a4 d1d2 b7d6 e3d4 d6c4 d2g2
info depth 21 seldepth 31 multipv 1 score cp 84 nodes 7831400 nps 3283605 hashfull 4 tbhits 0 time 2385 pv e4f5 f8f5 g2g4 f5f7 e2d4 g7d4 d1d4 a8d8 f4f5 c7d6 c1d1 g6f5 g4f5 a5b7 g1h1 d6f6 d4c4 b7d6 c4e2 d6f5 d5d6 e7d6
info depth 22 seldepth 34 multipv 1 score cp 82 nodes 11832136 nps 4414976 hashfull 6 tbhits 0 time 2680 pv e4f5 f8f5 g2g4 f5f6 e2d4 a8d8 g4g5 f6d6 d4b5 c7b7 b5d6 d8d6 d1g4 b7d5 f4f5 a5c6 f5g6 h7g6 f1d1 d5e6 g4e6 d6e6 e3d4 e6d6 d4g7 g8g7 d1d6
info depth 23 seldepth 35 multipv 1 score cp 89 nodes 15860346 nps 5394675 hashfull 11 tbhits 0 time 2940 pv e4f5 f8f5 g2g4 f5f6 e2d4 a8d8 g4g5 f6d6 d4b5 c7b7 b5d6 d8d6 d1g4 b7d5 f1d1 d5e4 e3f2 d6d1 c1d1 g7c3 d1d8 g8f7 g4h3 e4b1 g1g2 b1e4 g2g3 h7h5 g5h6 a5c6 d8d1 f7g8
info depth 24 seldepth 40 multipv 1 score cp 95 lowerbound nodes 18504502 nps 5917653 hashfull 11 tbhits 0 time 3127 pv e4f5
info depth 24 currmove e4f5 currmovenumber 1
info depth 24 seldepth 40 multipv 1 score cp 101 lowerbound nodes 19345631 nps 6077797 hashfull 11 tbhits 0 time 3183 pv e4f5
info depth 24 currmove e4f5 currmovenumber 1
info depth 24 currmove g2g4 currmovenumber 5
info depth 24 currmove d1d4 currmovenumber 8
info depth 24 currmove g1h1 currmovenumber 10
info depth 24 currmove d1d2 currmovenumber 11
info depth 24 currmove e4c2 currmovenumber 13
info depth 24 currmove e3d2 currmovenumber 32
info depth 24 currmove a2a4 currmovenumber 33
info depth 24 seldepth 40 multipv 1 score cp 95 upperbound nodes 20957319 nps 6373880 hashfull 11 tbhits 0 time 3288 pv e4f5 f8f5
info depth 24 currmove e4f5 currmovenumber 1
info depth 24 currmove e2d4 currmovenumber 4
info depth 24 currmove d1c2 currmovenumber 13
info depth 24 seldepth 41 multipv 1 score cp 87 nodes 22769106 nps 6710611 hashfull 11 tbhits 0 time 3393 pv e4f5 f8f5 g2g4 f5f6 e2d4 a8d8 g4g5 f6d6 d4b5 c7b7 b5d6 d8d6 d1g4 b7d5 e3f2 d5c6 f1e1 c6d7 g4d7 d6d7 e1e3 a5c6 c1e1 g8f7 g1g2 d7d3 e3e6 g7c3 e6c6
info depth 25 currmove e4f5 currmovenumber 1
info depth 25 currmove e2d4 currmovenumber 6
info depth 25 currmove g1h1 currmovenumber 8
info depth 25 currmove f1e1 currmovenumber 9
info depth 25 currmove g2g3 currmovenumber 14
info depth 25 currmove f1f2 currmovenumber 15
info depth 25 seldepth 41 multipv 1 score cp 88 nodes 29150590 nps 7742520 hashfull 12 tbhits 0 time 3765 pv e4f5 f8f5 g2g4 f5f6 e2d4 a8d8 g4g5 f6d6 d4b5 c7b7 b5d6 d8d6 d1g4 b7d5 e3f2 d5c6 f1e1 c6d7 g4d7 d6d7 e1e3 a5c6 c1e1 g8f7 e1e2 d7d3 e3d3 c4d3 e2d2 f7e6 f2e3 g7c3 d2d3
info depth 26 currmove e4f5 currmovenumber 1
info depth 26 seldepth 41 multipv 1 score cp 94 lowerbound nodes 58088510 nps 11106789 hashfull 26 tbhits 0 time 5230 pv e4f5
info depth 26 currmove e4f5 currmovenumber 1
info depth 26 seldepth 41 multipv 1 score cp 100 lowerbound nodes 60044752 nps 11254873 hashfull 27 tbhits 0 time 5335 pv e4f5
info depth 26 currmove e4f5 currmovenumber 1
info depth 26 seldepth 41 multipv 1 score cp 110 lowerbound nodes 77518822 nps 12645811 hashfull 35 tbhits 0 time 6130 pv e4f5
info depth 26 currmove e4f5 currmovenumber 1
info depth 26 currmove d1d4 currmovenumber 4
info depth 26 currmove e2g3 currmovenumber 8
info depth 26 currmove f1f2 currmovenumber 9
info depth 26 currmove d1c2 currmovenumber 12
info depth 26 seldepth 41 multipv 1 score cp 102 upperbound nodes 79387699 nps 12720349 hashfull 37 tbhits 0 time 6241 pv e4f5 f8f5
info depth 26 currmove e4f5 currmovenumber 1
info depth 26 currmove g2g3 currmovenumber 3
info depth 26 seldepth 41 multipv 1 score cp 102 nodes 80293557 nps 12698648 hashfull 37 tbhits 0 time 6323 pv e4f5 f8f5 g2g4 f5f6 e3d4 f6f7 f4f5 c7d6 d4g7 f7g7 e2d4 d6d5 d1e2 e7e5 d4e6 g7e7 c1d1 d5c6 e2e5 a5b7 f5g6 c6e6 g6h7 g8h7 e5e6 e7e6 d1d7 h7g8 d7b7 e6e3
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