Houdini 6.03 64-bit 8CPU v Stockfish 181117 64-bit 8CPU

[Nordlandia]

@Graham: are you willing to experiment with ponder on your dual cpu xeon.

Each engine get allocated one Xeon for whole game.

Is will be interesting to see whether 60-70% ponder accuracy outweights splitting total cores.

Consider this when you have time.

[Graham Banks]

GAME 31

Houdini got rid of white's e5 knight at the expense of being saddled with an IQP and queenside pawn minority. Any pressure for a long while was from Stockfish, but Houdini's position held, After most pieces came off, Stockfish went into a rook and pawns ending a pawn ahead, but it was always going to be drawn. Stockfish leads by 16.5-14.5 (four wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.11.29"]
[Round "16.1"]
[White "Stockfish 181117 64-bit 8CPU"]
[Black "Houdini 6.03 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "8:26:36 a.m."]
[ECO "D30"]
[Opening "D30"]
[TimeControl "7200+30"]
[PlyCount "151"]
[Number "31"]
[Termination "GUI adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.d4 {[%eval 0,1] [%emt 00:00:00]} d5 {[%eval 0,1] [%emt 00:00:00]}
2.c4 {[%eval 0,1] [%emt 00:00:00]} e6 {[%eval 0,1] [%emt 00:00:00]}
3.Nf3 {[%eval 0,1] [%emt 00:00:00]} a6 {[%eval 0,1] [%emt 00:00:00]}
4.cxd5 {[%eval 0,1] [%emt 00:00:00]} exd5 {[%eval 0,1] [%emt 00:00:00]}
5.Nc3 {[%eval 0,1] [%emt 00:00:00]} c6 {[%eval 0,1] [%emt 00:00:00]}
6.Qc2 {[%eval 0,1] [%emt 00:00:00]} Nf6 {[%eval 0,1] [%emt 00:00:00]}
7.Bf4 {[%eval 0,1] [%emt 00:00:00]} Bd6 {[%eval 0,1] [%emt 00:00:00]}
8.e3 {[%eval 22,34] [%emt 00:02:58]} Bxf4 {(O-O) [%eval -12,30] [%emt 00:09:58]}
9.exf4 {(exf4) [%eval 31,32] [%emt 00:01:04]} O-O {(g6) [%eval -17,28] [%emt 00:05:07]}
10.Bd3 {(Bd3) [%eval 24,34] [%emt 00:01:42]} Re8 {(g6) [%eval -23,30] [%emt 00:05:01]}
11.Ne5 {(Ne5) [%eval 44,34] [%emt 00:02:57]} Nbd7 {(Nbd7) [%eval -11,30] [%emt 00:01:24]}
12.O-O {(O-O) [%eval 25,33] [%emt 00:03:01]} c5 {(g6) [%eval -11,31] [%emt 00:00:44]}
13.dxc5 {(dxc5) [%eval 44,32] [%emt 00:01:02]} Nxe5 {(Nxe5) [%eval -11,32] [%emt 00:03:01]}
14.fxe5 {(fxe5) [%eval 58,33] [%emt 00:01:13]} Rxe5 {(Rxe5) [%eval -10,27] [%emt 00:00:27]}
15.Na4 {(Na4) [%eval 50,37] [%emt 00:03:38]} Qe7 {(Rb8) [%eval -25,33] [%emt 00:05:27]}
16.Nb6 {(Nb6) [%eval 41,37] [%emt 00:05:39]} Rb8 {(Rb8) [%eval -21,31] [%emt 00:02:34]}
17.b4 {(Rad1) [%eval 48,36] [%emt 00:02:52]} Bd7 {(Bd7) [%eval -39,33] [%emt 00:09:30]}
18.Nxd7 {(Nxd7) [%eval 49,35] [%emt 00:01:22]} Qxd7 {(Qxd7) [%eval -25,30] [%emt 00:01:46]}
19.a3 {(Rae1) [%eval 60,31] [%emt 00:01:30]} g6 {(g6) [%eval -28,29] [%emt 00:04:03]}
20.Rfd1 {(Rfe1) [%eval 62,34] [%emt 00:02:10]} Rd8 {(Rd8) [%eval -27,28] [%emt 00:03:24]}
21.Bf1 {(Bf1) [%eval 60,35] [%emt 00:02:27]} Re7 {(Ne4) [%eval -50,30] [%emt 00:09:04]}
22.Rd4 {(Rd4) [%eval 65,35] [%emt 00:05:04]} Re6 {(h5) [%eval -49,28] [%emt 00:03:13]}
23.g3 {(g3) [%eval 62,36] [%emt 00:05:43]} Rde8 {(Rde8) [%eval -47,28] [%emt 00:02:20]}
24.Rc1 {(Rc1) [%eval 61,37] [%emt 00:01:39]} h5 {(h5) [%eval -47,31] [%emt 00:03:49]}
25.Qc3 {(Rcd1) [%eval 66,39] [%emt 00:03:58]} Qe7 {(Ne4) [%eval -38,31] [%emt 00:03:51]}
26.Rf4 {(Rf4) [%eval 64,34] [%emt 00:01:28]} Re5 {(Rd8) [%eval -55,32] [%emt 00:07:27]}
27.Qd4 {(Qd4) [%eval 65,33] [%emt 00:01:34]} Rc8 {(Rc8) [%eval -46,31] [%emt 00:03:13]}
28.Kg2 {(Rd1) [%eval 65,35] [%emt 00:02:38]} Nd7 {(Nd7) [%eval -48,32] [%emt 00:03:19]}
29.Qd2 {(Rf3) [%eval 67,36] [%emt 00:05:09]} Kh7 {(Kg7) [%eval -40,27] [%emt 00:01:48]}
30.Rd1 {(Qb2) [%eval 68,34] [%emt 00:01:15]} Rd8 {(Kg7) [%eval -51,30] [%emt 00:11:59]}
31.Qc3 {(Qc3) [%eval 72,35] [%emt 00:02:23]} Qe6 {(Kg8) [%eval -52,29] [%emt 00:03:15]}
32.h4 {(h4) [%eval 72,37] [%emt 00:14:11]} Rc8 {(Re8) [%eval -40,26] [%emt 00:01:18]}
33.Qd4 {(Qd3) [%eval 70,36] [%emt 00:03:19]} Qe7 {(Qe7) [%eval -46,30] [%emt 00:03:24]}
34.Rf3 {(Kg1) [%eval 78,36] [%emt 00:04:28]} Nf6 {(Nf6) [%eval -47,29] [%emt 00:02:36]}
35.Rd2 {(Rd2) [%eval 69,39] [%emt 00:03:13]} Ng4 {(Kg7) [%eval -37,28] [%emt 00:00:46]}
36.Be2 {(Be2) [%eval 70,37] [%emt 00:08:23]} Rd8 {(Rd8) [%eval -47,29] [%emt 00:01:58]}
37.Rf4 {(Qb2) [%eval 71,35] [%emt 00:00:58]} f5 {(f5) [%eval -34,28] [%emt 00:01:46]}
38.Bf3 {(Bf3) [%eval 59,42] [%emt 00:08:55]} Nf6 {(Nf6) [%eval -50,26] [%emt 00:00:20]}
39.Rd3 {(Qb2) [%eval 72,36] [%emt 00:02:44]} Ne4 {(Ne4) [%eval -37,31] [%emt 00:04:34]}
40.Re3 {(Re3) [%eval 72,40] [%emt 00:03:11]} Re6 {(Rd7) [%eval -32,29] [%emt 00:00:50]}
41.Bd1 {(Bd1) [%eval 74,37] [%emt 00:00:51]} Rd7 {(Rd7) [%eval -45,28] [%emt 00:02:19]}
42.Ba4 {(Bb3) [%eval 55,38] [%emt 00:01:23]} Rd8 {(Rd8) [%eval -28,28] [%emt 00:00:44]}
43.Bd1 {(Bc2) [%eval 71,40] [%emt 00:03:22]} Rd7 {(Rd7) [%eval -9,44] [%emt 00:00:34]}
44.Rff3 {(Bb3) [%eval 57,35] [%emt 00:00:58]} Qg7 {(Qg7) [%eval -58,31] [%emt 00:02:34]}
45.Rd3 {(Rd3) [%eval 74,32] [%emt 00:00:18]} Nf6 {(Nf6) [%eval -30,27] [%emt 00:00:36]}
46.Qb2 {(Rd2) [%eval 50,39] [%emt 00:04:15]} Re1 {(a5) [%eval -51,29] [%emt 00:03:36]}
47.Bb3 {(Rd2) [%eval 72,32] [%emt 00:00:49]} Re4 {(Re4) [%eval -34,29] [%emt 00:00:36]}
48.Rd2 {(Rd2) [%eval 54,34] [%emt 00:00:46]} Qf7 {(Qf7) [%eval -41,30] [%emt 00:01:53]}
49.Bc2 {(Bc2) [%eval 58,33] [%emt 00:00:30]} Re1 {(Re1) [%eval -49,30] [%emt 00:01:00]}
50.Bd1 {(Bd1) [%eval 59,36] [%emt 00:01:04]} Ne4 {(Qe6) [%eval -37,30] [%emt 00:01:09]}
51.Rdd3 {(Rdd3) [%eval 70,34] [%emt 00:00:19]} d4 {(Qg7) [%eval -59,33] [%emt 00:01:15]}
52.Rxd4 {(Rxd4) [%eval 72,36] [%emt 00:01:14]} Nxc5 {(Nxc5) [%eval -59,34] [%emt 00:00:11]}
53.Qd2 {(Qd2) [%eval 76,34] [%emt 00:00:20]} Rxd4 {(Rxd4) [%eval -59,36] [%emt 00:00:43]}
54.Qxd4 {(Qxd4) [%eval 60,40] [%emt 00:00:47]} Qd7 {(Qd7) [%eval -59,34] [%emt 00:00:06]}
55.Rd3 {(Rd3) [%eval 60,42] [%emt 00:00:31]} Qxd4 {(Qxd4) [%eval -59,37] [%emt 00:00:39]}
56.Rxd4 {(Rxd4) [%eval 60,44] [%emt 00:00:55]} Ne4 {(Ne4) [%eval -58,37] [%emt 00:00:17]}
57.Bf3 {(Bf3) [%eval 60,45] [%emt 00:00:34]} Kh6 {(Kh6) [%eval -58,38] [%emt 00:00:36]}
58.a4 {(a4) [%eval 60,48] [%emt 00:00:29]} b6 {(b6) [%eval -58,35] [%emt 00:00:09]}
59.Bxe4 {(Bxe4) [%eval 60,52] [%emt 00:00:31]} fxe4 {(fxe4) [%eval -58,40] [%emt 00:00:36]}
60.Rd6 {(Rd6) [%eval 60,55] [%emt 00:00:26]} Ra1 {(Ra1) [%eval -58,40] [%emt 00:00:09]}
61.Rxb6 {(Rxb6) [%eval 60,55] [%emt 00:00:44]} Rxa4 {(Rxa4) [%eval -58,41] [%emt 00:00:50]}
62.Kf1 {(Kf1) [%eval 60,56] [%emt 00:00:28]} Ra3 {(Kg7) [%eval -58,38] [%emt 00:00:38]}
63.Ke2 {(Re6) [%eval 60,58] [%emt 00:00:59]} a5 {(Rb3) [%eval -58,40] [%emt 00:00:33]}
64.bxa5 {(bxa5) [%eval 60,63] [%emt 00:00:24]} Rxa5 {(Rxa5) [%eval -58,39] [%emt 00:00:10]}
65.Ke3 {(Re6) [%eval 60,66] [%emt 00:00:34]} Kg7 {(Ra2) [%eval -58,39] [%emt 00:00:51]}
66.Kxe4 {(Re6) [%eval 60,62] [%emt 00:00:26]} Ra4 {(Rf5) [%eval -58,37] [%emt 00:00:52]}
67.Kd3 {(Ke5) [%eval 60,71] [%emt 00:00:27]} Ra3 {(Ra2) [%eval -58,40] [%emt 00:00:41]}
68.Ke2 {(Kd2) [%eval 60,73] [%emt 00:01:43]} Ra2 {(Ra2) [%eval -58,41] [%emt 00:00:34]}
69.Kf1 {(Kf1) [%eval 60,68] [%emt 00:00:33]} Rc2 {(Kf7) [%eval -58,41] [%emt 00:00:31]}
70.Rb4 {(Re6) [%eval 60,68] [%emt 00:00:28]} Kf6 {(Kf6) [%eval -58,41] [%emt 00:00:40]}
71.Rb6 {(Rd4) [%eval 60,70] [%emt 00:01:02]} Kg7 {(Kf7) [%eval 0,99] [%emt 00:00:15]}
72.Rb4 {(Re6) [%eval 60,72] [%emt 00:00:25]} Kf6 {(Kf6) [%eval 0,75] [%emt 00:00:28]}
73.Kg1 {(Rd4) [%eval 60,70] [%emt 00:00:26]} Rc6 {(Ke6) [%eval -58,42] [%emt 00:01:01]}
74.Ra4 {(Kh2) [%eval 60,66] [%emt 00:00:24]} Ke6 {(Kf5) [%eval -58,43] [%emt 00:00:41]}
75.Rf4 {(Kh2) [%eval 60,73] [%emt 00:00:25]} Rc1 {(Rb6) [%eval -58,41] [%emt 00:00:34]}
76.Kh2 {(Kh2) [%eval 60,73] [%emt 00:00:25]}
1/2-1/2[/pgn]

[Graham Banks]

GAME 32

Houdini looked for kingside expansion, but Stockfish had enough counter-pressure in the centre to prevent any danger. When Houdini's weak d-pawn was captured, the ensuing exchanges led into a queen and minor piece ending. A perpetual check concluded the game shortly afterwards. Stockfish leads by 17.0-15.0 (four wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.11.29"]
[Round "16.2"]
[White "Houdini 6.03 64-bit 8CPU"]
[Black "Stockfish 181117 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "1:25:13 p.m."]
[ECO "D30"]
[Opening "D30"]
[TimeControl "7200+30"]
[PlyCount "100"]
[Number "32"]
[Termination "3-fold rep"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.d4 {[%eval 0,1] [%emt 00:00:00]} d5 {[%eval 0,1] [%emt 00:00:00]}
2.c4 {[%eval 0,1] [%emt 00:00:00]} e6 {[%eval 0,1] [%emt 00:00:00]}
3.Nf3 {[%eval 0,1] [%emt 00:00:00]} a6 {[%eval 0,1] [%emt 00:00:00]}
4.cxd5 {[%eval 0,1] [%emt 00:00:00]} exd5 {[%eval 0,1] [%emt 00:00:00]}
5.Nc3 {[%eval 0,1] [%emt 00:00:00]} c6 {[%eval 0,1] [%emt 00:00:00]}
6.Qc2 {[%eval 0,1] [%emt 00:00:00]} Nf6 {[%eval 0,1] [%emt 00:00:00]}
7.Bf4 {[%eval 0,1] [%emt 00:00:00]} Bd6 {[%eval 0,1] [%emt 00:00:00]}
8.Bxd6 {[%eval 29,30] [%emt 00:04:13]} Qxd6 {(Qxd6) [%eval -25,32] [%emt 00:01:48]}
9.e3 {(e3) [%eval 38,29] [%emt 00:02:58]} Bg4 {(Bg4) [%eval -16,36] [%emt 00:05:23]}
10.Ne5 {(Ne5) [%eval 46,28] [%emt 00:02:29]} Nbd7 {(Nbd7) [%eval -19,35] [%emt 00:06:22]}
11.f4 {(Nxg4) [%eval 30,28] [%emt 00:04:54]} c5 {(b5) [%eval -10,31] [%emt 00:03:11]}
12.g3 {(h3) [%eval 30,27] [%emt 00:03:50]} O-O {(Qe6) [%eval -12,35] [%emt 00:03:44]}
13.Bg2 {(Bg2) [%eval 0,28] [%emt 00:05:35]} Qe6 {(Qe6) [%eval -8,32] [%emt 00:00:57]}
14.O-O {(O-O) [%eval 23,28] [%emt 00:01:54]} Bf5 {(Bf5) [%eval -24,35] [%emt 00:02:49]}
15.Qd2 {(Qd2) [%eval 19,29] [%emt 00:03:44]} Rac8 {(c4) [%eval 0,35] [%emt 00:04:19]}
16.Nxd5 {(Nxd7) [%eval 7,29] [%emt 00:07:00]} Nxd5 {(Nxd5) [%eval 7,34] [%emt 00:01:12]}
17.e4 {(e4) [%eval -3,31] [%emt 00:04:21]} Bxe4 {(Bxe4) [%eval 0,42] [%emt 00:07:10]}
18.Bxe4 {(Bxe4) [%eval 19,29] [%emt 00:02:25]} N7f6 {(N7f6) [%eval 0,45] [%emt 00:04:19]}
19.Bf3 {(Bf3) [%eval 10,28] [%emt 00:04:55]} c4 {(c4) [%eval 0,47] [%emt 00:02:54]}
20.a4 {(a4) [%eval -7,33] [%emt 00:11:08]} Rc7 {(b5) [%eval 0,49] [%emt 00:06:16]}
21.g4 {(Rfe1) [%eval -4,29] [%emt 00:05:43]} Nd7 {(Nd7) [%eval 8,35] [%emt 00:02:53]}
22.Kh1 {(Rae1) [%eval 3,30] [%emt 00:02:10]} f6 {(f6) [%eval 0,37] [%emt 00:02:40]}
23.Rae1 {(Rae1) [%eval 0,33] [%emt 00:02:26]} Qd6 {(Qd6) [%eval 0,43] [%emt 00:05:35]}
24.f5 {(g5) [%eval 0,33] [%emt 00:00:50]} N7b6 {(Kh8) [%eval 0,44] [%emt 00:06:35]}
25.a5 {(a5) [%eval -10,33] [%emt 00:03:14]} Nc8 {(Nc8) [%eval 0,45] [%emt 00:03:20]}
26.g5 {(g5) [%eval -10,32] [%emt 00:03:25]} Qd8 {(Qd8) [%eval 0,45] [%emt 00:02:20]}
27.gxf6 {(gxf6) [%eval -10,31] [%emt 00:00:34]} Nxf6 {(Nxf6) [%eval 0,50] [%emt 00:04:31]}
28.Qe3 {(Bg2) [%eval -10,33] [%emt 00:03:17]} Re8 {(Nd6) [%eval 0,41] [%emt 00:02:41]}
29.Qf4 {(Bg2) [%eval -10,32] [%emt 00:02:54]} Rf8 {(Rf8) [%eval 0,39] [%emt 00:00:59]}
30.h3 {(Bg2) [%eval -10,28] [%emt 00:00:26]} Nd6 {(Kh8) [%eval 0,40] [%emt 00:02:29]}
31.Ng4 {(Ng4) [%eval -3,31] [%emt 00:02:28]} Nb5 {(Nb5) [%eval 0,39] [%emt 00:00:48]}
32.Nxf6 {(Nxf6) [%eval -2,31] [%emt 00:03:31]} Rxf6 {(Qxf6) [%eval 0,42] [%emt 00:02:03]}
33.Re5 {(Re5) [%eval -9,32] [%emt 00:02:41]} Rd7 {(Rd7) [%eval 0,44] [%emt 00:05:12]}
34.Qc1 {(Qe4) [%eval -9,30] [%emt 00:00:24]} Rxd4 {(Rxd4) [%eval 0,37] [%emt 00:01:06]}
35.Qe3 {(Qe3) [%eval -9,33] [%emt 00:02:55]} Nc7 {(Nc7) [%eval 0,38] [%emt 00:01:02]}
36.Re7 {(Re7) [%eval -9,31] [%emt 00:00:25]} Rd7 {(Rd7) [%eval 0,42] [%emt 00:02:49]}
37.Rxd7 {(Re5) [%eval -9,34] [%emt 00:02:08]} Qxd7 {(Qxd7) [%eval 0,41] [%emt 00:00:55]}
38.Rd1 {(Rd1) [%eval -6,28] [%emt 00:00:19]} Rd6 {(Rd6) [%eval 0,42] [%emt 00:01:11]}
39.Rxd6 {(Rxd6) [%eval -6,33] [%emt 00:01:43]} Qxd6 {(Qxd6) [%eval 0,43] [%emt 00:01:00]}
40.Bxb7 {(Bxb7) [%eval -3,28] [%emt 00:00:20]} Kf8 {(Kf8) [%eval 0,38] [%emt 00:01:09]}
41.Qb6 {(Kg2) [%eval -3,32] [%emt 00:02:49]} Qf4 {(Qd1) [%eval 0,40] [%emt 00:01:07]}
42.Qc5 {(Qc5) [%eval -3,31] [%emt 00:02:19]} Kf7 {(Kg8) [%eval 0,44] [%emt 00:01:35]}
43.Kg2 {(Bg2) [%eval -3,32] [%emt 00:02:13]} h5 {(h5) [%eval 0,43] [%emt 00:03:09]}
44.Bd5 {(f6) [%eval -3,32] [%emt 00:02:01]} Nxd5 {(Nxd5) [%eval 0,46] [%emt 00:01:43]}
45.Qxd5 {(Qxd5) [%eval -3,32] [%emt 00:00:23]} Kf6 {(Kf6) [%eval 0,48] [%emt 00:02:17]}
46.Qe6 {(Qe6) [%eval -2,35] [%emt 00:02:34]} Kg5 {(Kg5) [%eval 0,1] [%emt 00:00:00]}
47.Qe7 {(Qe7) [%eval -2,35] [%emt 00:00:16]} Kh6 {(Kxf5) [%eval 0,51] [%emt 00:02:05]}
48.Qe6 {(Qe6) [%eval -2,36] [%emt 00:01:44]} Kg5 {(Kg5) [%eval 0,50] [%emt 00:01:51]}
49.Qe7 {(Qe7) [%eval -2,36] [%emt 00:03:11]} Kh6 {(Kxf5) [%eval 0,53] [%emt 00:02:05]}
50.Qe6 {(Qe6) [%eval -2,39] [%emt 00:02:23]} Kg5 {(Kg5) [%eval 0,68] [%emt 00:01:17]}
1/2-1/2[/pgn]

[Graham Banks]

GAME 33

As black, Houdini opens up the position with 15...c5, but again ends up with an IQP in return for some queenside activity. However, as trades occur, the problem of this pawn is solved and we go into an even queen and minor piece ending. After the final minor pieces are exchanged, Stockfish is happy to take a perpetual check. Stockfish leads by 17.5-15.5 (four wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.11.29"]
[Round "17.1"]
[White "Stockfish 181117 64-bit 8CPU"]
[Black "Houdini 6.03 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "5:26:42 p.m."]
[ECO "D30"]
[Opening "D30"]
[TimeControl "7200+30"]
[PlyCount "85"]
[Number "33"]
[Termination "3-fold rep"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.d4 {[%eval 0,1] [%emt 00:00:00]} d5 {[%eval 0,1] [%emt 00:00:00]}
2.c4 {[%eval 0,1] [%emt 00:00:00]} e6 {[%eval 0,1] [%emt 00:00:00]}
3.Nf3 {[%eval 0,1] [%emt 00:00:00]} a6 {[%eval 0,1] [%emt 00:00:00]}
4.cxd5 {[%eval 0,1] [%emt 00:00:00]} exd5 {[%eval 0,1] [%emt 00:00:00]}
5.Nc3 {[%eval 0,1] [%emt 00:00:00]} c6 {[%eval 0,1] [%emt 00:00:00]}
6.Qc2 {[%eval 0,1] [%emt 00:00:00]} Nf6 {[%eval 0,1] [%emt 00:00:00]}
7.Bg5 {[%eval 0,1] [%emt 00:00:00]} Be7 {[%eval 0,1] [%emt 00:00:00]}
8.e3 {[%eval 0,1] [%emt 00:00:00]} Be6 {[%eval 0,1] [%emt 00:00:00]}
9.Bd3 {[%eval 0,1] [%emt 00:00:00]} Nbd7 {[%eval 0,1] [%emt 00:00:00]}
10.O-O {[%eval 40,36] [%emt 00:05:17]} h6 {(h6) [%eval -23,29] [%emt 00:05:20]}
11.Bf4 {(Bf4) [%eval 24,35] [%emt 00:02:32]} Nh5 {(O-O) [%eval -28,29] [%emt 00:04:08]}
12.Be5 {(Be5) [%eval 22,35] [%emt 00:01:44]} O-O {(O-O) [%eval -24,29] [%emt 00:03:24]}
13.h3 {(h3) [%eval 22,35] [%emt 00:04:36]} Rc8 {(Nhf6) [%eval -24,28] [%emt 00:06:24]}
14.Rfd1 {(Rac1) [%eval 35,32] [%emt 00:02:11]} Nhf6 {(Nxe5) [%eval -26,29] [%emt 00:04:05]}
15.Bf4 {(Bf4) [%eval 40,37] [%emt 00:05:58]} c5 {(c5) [%eval -16,28] [%emt 00:01:44]}
16.dxc5 {(dxc5) [%eval 42,35] [%emt 00:01:44]} Nxc5 {(Nxc5) [%eval -25,28] [%emt 00:06:36]}
17.Qb1 {(Be5) [%eval 36,36] [%emt 00:08:23]} Re8 {(Bd6) [%eval -20,28] [%emt 00:03:42]}
18.Bc2 {(Nd4) [%eval 41,34] [%emt 00:04:17]} Bd6 {(Bd6) [%eval -26,31] [%emt 00:05:56]}
19.Bxd6 {(Bxd6) [%eval 39,36] [%emt 00:03:22]} Qxd6 {(Qxd6) [%eval -20,26] [%emt 00:00:43]}
20.Rd2 {(Rd2) [%eval 42,36] [%emt 00:08:44]} Qb6 {(Qc7) [%eval -27,30] [%emt 00:06:27]}
21.Na4 {(Nd4) [%eval 40,35] [%emt 00:02:46]} Nxa4 {(Nxa4) [%eval -28,29] [%emt 00:03:41]}
22.Bxa4 {(Bxa4) [%eval 30,36] [%emt 00:01:38]} Re7 {(Red8) [%eval -22,29] [%emt 00:01:55]}
23.Nd4 {(Nd4) [%eval 32,31] [%emt 00:01:23]} Ne4 {(Rec7) [%eval -20,30] [%emt 00:03:37]}
24.Rc2 {(Rc2) [%eval 34,40] [%emt 00:03:11]} Rxc2 {(Nc5) [%eval -15,31] [%emt 00:03:20]}
25.Bxc2 {(Qxc2) [%eval 34,39] [%emt 00:03:19]} Bd7 {(Bd7) [%eval -22,33] [%emt 00:03:48]}
26.Bxe4 {(Bxe4) [%eval 26,41] [%emt 00:02:07]} dxe4 {(dxe4) [%eval -27,37] [%emt 00:03:11]}
27.Qc2 {(Qc2) [%eval 27,41] [%emt 00:01:19]} Re8 {(Re8) [%eval -22,35] [%emt 00:01:33]}
28.Rc1 {(Rc1) [%eval 27,43] [%emt 00:01:31]} Rc8 {(Rc8) [%eval -15,36] [%emt 00:03:39]}
29.Qb1 {(Qb1) [%eval 19,45] [%emt 00:01:52]} Rxc1 {(Rxc1) [%eval -11,35] [%emt 00:02:21]}
30.Qxc1 {(Qxc1) [%eval 27,43] [%emt 00:01:24]} Qa5 {(Qg6) [%eval -12,35] [%emt 00:00:34]}
31.a3 {(a3) [%eval 19,47] [%emt 00:01:49]} h5 {(h5) [%eval -11,38] [%emt 00:03:21]}
32.Ne2 {(b4) [%eval 12,48] [%emt 00:08:37]} h4 {(Bc6) [%eval -5,36] [%emt 00:06:03]}
33.Nc3 {(Nc3) [%eval 26,37] [%emt 00:01:23]} Bc6 {(Qe5) [%eval -3,38] [%emt 00:02:25]}
34.Qd2 {(Qd1) [%eval 0,48] [%emt 00:07:00]} Qc7 {(Qc7) [%eval -3,38] [%emt 00:02:05]}
35.b3 {(Qd4) [%eval 0,48] [%emt 00:01:57]} Kh7 {(Qe7) [%eval -3,37] [%emt 00:02:09]}
36.Ne2 {(Ne2) [%eval 0,49] [%emt 00:03:00]} Bb5 {(Bb5) [%eval -3,36] [%emt 00:00:27]}
37.Nd4 {(Nd4) [%eval 0,49] [%emt 00:01:14]} g6 {(g6) [%eval -3,38] [%emt 00:02:35]}
38.Nxb5 {(a4) [%eval 0,50] [%emt 00:01:27]} axb5 {(axb5) [%eval -3,41] [%emt 00:02:05]}
39.Qd4 {(b4) [%eval 0,48] [%emt 00:01:36]} Qc1 {(Qc1) [%eval -2,42] [%emt 00:02:08]}
40.Kh2 {(Kh2) [%eval 0,56] [%emt 00:02:04]} Qc7 {(Qc7) [%eval -2,45] [%emt 00:01:59]}
41.Kg1 {(Kg1) [%eval 0,60] [%emt 00:02:29]} Qc1 {(Qc1) [%eval -2,47] [%emt 00:02:35]}
42.Kh2 {(Kh2) [%eval 0,61] [%emt 00:02:40]} Qc7 {(Qc7) [%eval -2,48] [%emt 00:01:53]}
43.Kg1 {(Kg1) [%eval 0,72] [%emt 00:01:19]}
1/2-1/2[/pgn]

[Graham Banks]

GAME 34

In the return game, Stockfish also goes for the c5 break. Houdini plays actively on the queenside and soon all of the major pieces are traded. The resulting endgame is drawish. Stockfish leads by 18.0-16.0 (four wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.11.29"]
[Round "17.2"]
[White "Houdini 6.03 64-bit 8CPU"]
[Black "Stockfish 181117 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "8:59:39 p.m."]
[ECO "D30"]
[Opening "D30"]
[TimeControl "7200+30"]
[PlyCount "122"]
[Number "34"]
[Termination "GUI adjudication"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.d4 {[%eval 0,1] [%emt 00:00:00]} d5 {[%eval 0,1] [%emt 00:00:00]}
2.c4 {[%eval 0,1] [%emt 00:00:00]} e6 {[%eval 0,1] [%emt 00:00:00]}
3.Nf3 {[%eval 0,1] [%emt 00:00:00]} a6 {[%eval 0,1] [%emt 00:00:00]}
4.cxd5 {[%eval 0,1] [%emt 00:00:00]} exd5 {[%eval 0,1] [%emt 00:00:00]}
5.Nc3 {[%eval 0,1] [%emt 00:00:00]} c6 {[%eval 0,1] [%emt 00:00:00]}
6.Qc2 {[%eval 0,1] [%emt 00:00:00]} Nf6 {[%eval 0,1] [%emt 00:00:00]}
7.Bg5 {[%eval 0,1] [%emt 00:00:00]} Be7 {[%eval 0,1] [%emt 00:00:00]}
8.e3 {[%eval 0,1] [%emt 00:00:00]} Be6 {[%eval 0,1] [%emt 00:00:00]}
9.Bd3 {[%eval 0,1] [%emt 00:00:00]} Nbd7 {[%eval 0,1] [%emt 00:00:00]}
10.O-O {[%eval 37,29] [%emt 00:07:27]} h6 {(Rc8) [%eval -24,36] [%emt 00:06:47]}
11.Bf4 {(Bf4) [%eval 36,30] [%emt 00:02:45]} O-O {(O-O) [%eval -25,37] [%emt 00:04:36]}
12.h3 {(h3) [%eval 30,28] [%emt 00:03:01]} Rc8 {(Re8) [%eval -20,34] [%emt 00:02:21]}
13.Rac1 {(Rfd1) [%eval 37,28] [%emt 00:03:46]} Re8 {(c5) [%eval -19,35] [%emt 00:05:23]}
14.Rfd1 {(Rfd1) [%eval 37,29] [%emt 00:04:13]} Bf8 {(c5) [%eval -16,31] [%emt 00:02:27]}
15.a3 {(Qd2) [%eval 29,29] [%emt 00:05:10]} c5 {(c5) [%eval -26,39] [%emt 00:05:01]}
16.dxc5 {(dxc5) [%eval 41,28] [%emt 00:02:24]} Nxc5 {(Nxc5) [%eval -19,36] [%emt 00:02:13]}
17.Nd4 {(Qb1) [%eval 33,29] [%emt 00:03:26]} Bd7 {(Bd7) [%eval -31,37] [%emt 00:05:27]}
18.Bf5 {(Qb1) [%eval 30,30] [%emt 00:17:19]} b5 {(Bxf5) [%eval -16,37] [%emt 00:07:10]}
19.Qb1 {(Bxd7) [%eval 26,29] [%emt 00:03:12]} Bxf5 {(Bxf5) [%eval -8,35] [%emt 00:01:08]}
20.Qxf5 {(Qxf5) [%eval 33,31] [%emt 00:02:14]} g6 {(g6) [%eval -15,39] [%emt 00:03:27]}
21.Qb1 {(Qb1) [%eval 34,26] [%emt 00:00:47]} Qd7 {(Qd7) [%eval -10,36] [%emt 00:01:43]}
22.Nde2 {(Nde2) [%eval 23,29] [%emt 00:06:57]} Qb7 {(Qb7) [%eval -11,34] [%emt 00:03:04]}
23.Na2 {(b3) [%eval 30,29] [%emt 00:02:50]} Bg7 {(Nb3) [%eval -8,43] [%emt 00:12:00]}
24.Nb4 {(Nb4) [%eval 21,31] [%emt 00:10:49]} a5 {(a5) [%eval -15,41] [%emt 00:01:58]}
25.Nd3 {(Nd3) [%eval 27,29] [%emt 00:00:28]} Ncd7 {(Ncd7) [%eval -10,42] [%emt 00:04:29]}
26.b4 {(b4) [%eval 22,34] [%emt 00:03:24]} a4 {(a4) [%eval -8,41] [%emt 00:01:17]}
27.Nc5 {(Nc5) [%eval 24,33] [%emt 00:03:16]} Nxc5 {(Nxc5) [%eval -8,44] [%emt 00:01:55]}
28.bxc5 {(bxc5) [%eval 19,34] [%emt 00:03:11]} Ne4 {(Ne4) [%eval -8,45] [%emt 00:01:37]}
29.Nd4 {(Nd4) [%eval 31,31] [%emt 00:00:26]} g5 {(Nxc5) [%eval -20,45] [%emt 00:06:28]}
30.Bh2 {(Bh2) [%eval 12,32] [%emt 00:03:57]} Nxc5 {(Nxc5) [%eval -8,44] [%emt 00:03:14]}
31.Qxb5 {(Qxb5) [%eval 21,29] [%emt 00:00:24]} Qxb5 {(Qxb5) [%eval 0,42] [%emt 00:01:25]}
32.Nxb5 {(Nxb5) [%eval 10,36] [%emt 00:03:20]} Nb3 {(Nb3) [%eval 0,49] [%emt 00:04:28]}
33.Rxc8 {(Rxc8) [%eval 7,34] [%emt 00:00:43]} Rxc8 {(Rxc8) [%eval 0,52] [%emt 00:03:39]}
34.Bd6 {(Bd6) [%eval 7,36] [%emt 00:02:25]} Rc1 {(Rc1) [%eval 0,53] [%emt 00:02:58]}
35.Rxc1 {(Rxc1) [%eval 12,36] [%emt 00:02:21]} Nxc1 {(Nxc1) [%eval 0,54] [%emt 00:01:52]}
36.g4 {(Nc7) [%eval 0,39] [%emt 00:02:45]} d4 {(d4) [%eval 0,60] [%emt 00:02:26]}
37.exd4 {(Nxd4) [%eval 0,39] [%emt 00:00:34]} Ne2 {(Ne2) [%eval 0,62] [%emt 00:00:57]}
38.Kf1 {(Kf1) [%eval 0,41] [%emt 00:01:48]} Nxd4 {(Nxd4) [%eval 0,70] [%emt 00:00:58]}
39.Nc3 {(Nxd4) [%eval 0,41] [%emt 00:00:39]} Bf8 {(Bf8) [%eval 0,71] [%emt 00:03:48]}
40.Bxf8 {(Bxf8) [%eval 0,42] [%emt 00:01:54]} Kxf8 {(Kxf8) [%eval 0,79] [%emt 00:00:47]}
41.Nxa4 {(Nxa4) [%eval 0,42] [%emt 00:00:47]} Nb5 {(Nb5) [%eval 0,84] [%emt 00:01:03]}
42.Nc5 {(Ke2) [%eval 0,41] [%emt 00:01:46]} Nxa3 {(Nxa3) [%eval 0,73] [%emt 00:00:45]}
43.Ke2 {(Ke2) [%eval 0,42] [%emt 00:01:56]} Ke7 {(Ke7) [%eval 0,88] [%emt 00:01:43]}
44.Ne4 {(Kd3) [%eval 0,41] [%emt 00:00:31]} Ke6 {(Nc4) [%eval 0,90] [%emt 00:02:01]}
45.Ng3 {(Nc5) [%eval 0,43] [%emt 00:01:31]} Kf6 {(Ke5) [%eval 0,69] [%emt 00:00:43]}
46.Nf5 {(Nf5) [%eval 0,44] [%emt 00:01:23]} h5 {(h5) [%eval 0,84] [%emt 00:01:15]}
47.Nd6 {(Ne3) [%eval 0,43] [%emt 00:00:20]} hxg4 {(hxg4) [%eval 0,91] [%emt 00:01:24]}
48.hxg4 {(hxg4) [%eval 0,47] [%emt 00:01:27]} Ke7 {(Ke6) [%eval 0,99] [%emt 00:00:40]}
49.Ne4 {(Ne4) [%eval 0,48] [%emt 00:01:41]} f6 {(f6) [%eval 0,107] [%emt 00:01:10]}
50.Ke3 {(Kd3) [%eval 0,46] [%emt 00:00:21]} Ke6 {(Nb5) [%eval 0,103] [%emt 00:01:36]}
51.f3 {(Kd3) [%eval 0,50] [%emt 00:01:32]} Nc4 {(Nc2) [%eval 0,92] [%emt 00:00:38]}
52.Kd4 {(Kd4) [%eval 0,55] [%emt 00:01:30]} Na3 {(Ne5) [%eval 0,102] [%emt 00:04:32]}
53.Nc5 {(Nc5) [%eval 0,52] [%emt 00:01:30]} Ke7 {(Kd6) [%eval 0,120] [%emt 00:00:35]}
54.Ke3 {(Ne4) [%eval 0,53] [%emt 00:01:28]} Nc4 {(Nc4) [%eval 0,93] [%emt 00:00:30]}
55.Kd4 {(Kf2) [%eval 0,55] [%emt 00:00:26]} Na3 {(Nd2) [%eval 0,121] [%emt 00:00:34]}
56.Ne4 {(Ne4) [%eval 0,54] [%emt 00:01:21]} Ke6 {(Nc2) [%eval 0,121] [%emt 00:00:42]}
57.Kd3 {(Nc5) [%eval 0,57] [%emt 00:03:42]} Ke7 {(Ke5) [%eval 0,121] [%emt 00:00:48]}
58.Kc3 {(Kd4) [%eval 0,56] [%emt 00:00:57]} Kf7 {(Nb5) [%eval 0,111] [%emt 00:02:38]}
59.Kb3 {(Kb3) [%eval 0,57] [%emt 00:01:09]} Nb5 {(Nb5) [%eval 0,127] [%emt 00:01:20]}
60.Kc4 {(Kc4) [%eval 0,57] [%emt 00:00:19]} Nc7 {(Nc7) [%eval 0,127] [%emt 00:00:20]}
61.Kd3 {(Kd3) [%eval 0,56] [%emt 00:01:01]} Ke6 {(Ke7) [%eval 0,123] [%emt 00:01:22]}
1/2-1/2[/pgn]

[Graham Banks]

GAME 35

As white, Stockfish castles queenside while Houdini's king looks destined to be stuck in the centre. Houdini attempts to create pressure on the queenside, and succeeds in swapping off queens and winning a pawn. At this stage, both sides see the game as equal. However, Stockfish is able to eventually win the exchange through taking advantage of black's underdeveloped kingside. Despite this, Houdini still feels that it has excellent drawing chances. Going a rook for four pawns down with 43... Nxc5 proved to be disastrous for Houdini though, as the four kingside pawns were held at bay and would eventually be picked off. A fifth win for Stockfish to move close to match victory at 19.0-16.0 (five wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.11.30"]
[Round "18.1"]
[White "Stockfish 181117 64-bit 8CPU"]
[Black "Houdini 6.03 64-bit 8CPU"]
[Result "1-0"]
[Time "1:29:12 a.m."]
[ECO "A01"]
[Opening "Symmetrical Variation, Larsen"]
[TimeControl "7200+30"]
[PlyCount "142"]
[Number "35"]
[Termination "GUI adjudication"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.b3 {[%eval 0,1] [%emt 00:00:00]} b6 {[%eval 0,1] [%emt 00:00:00]}
2.e4 {[%eval 0,1] [%emt 00:00:00]} e6 {[%eval 0,1] [%emt 00:00:00]}
3.Bb2 {[%eval 0,1] [%emt 00:00:00]} Bb7 {[%eval 0,1] [%emt 00:00:00]}
4.Qe2 {[%eval 0,1] [%emt 00:00:00]} c5 {[%eval 0,1] [%emt 00:00:00]}
5.Nc3 {[%eval 0,1] [%emt 00:00:00]} Nc6 {[%eval 0,1] [%emt 00:00:00]}
6.O-O-O {[%eval 0,1] [%emt 00:00:00]} a6 {[%eval 0,1] [%emt 00:00:00]}
7.f4 {[%eval 0,1] [%emt 00:00:00]} b5 {[%eval 0,1] [%emt 00:00:00]}
8.Nf3 {[%eval 0,31] [%emt 00:04:44]} Rc8 {(Qc7) [%eval 19,28] [%emt 00:06:42]}
9.Kb1 {(Kb1) [%eval 0,30] [%emt 00:01:29]} Qc7 {(Qc7) [%eval 23,28] [%emt 00:02:19]}
10.f5 {(e5) [%eval 7,32] [%emt 00:01:54]} Nd4 {(Nd4) [%eval -12,28] [%emt 00:05:12]}
11.Qd3 {(Qd3) [%eval 0,38] [%emt 00:06:49]} b4 {(Nf6) [%eval 4,29] [%emt 00:06:45]}
12.Na4 {(Na4) [%eval -8,32] [%emt 00:02:09]} Nb5 {(Nb5) [%eval -6,28] [%emt 00:04:26]}
13.c4 {(Qe3) [%eval 0,38] [%emt 00:05:58]} bxc3 {(bxc3) [%eval 15,24] [%emt 00:01:44]}
14.dxc3 {(dxc3) [%eval 0,41] [%emt 00:06:38]} Nf6 {(Nf6) [%eval 0,25] [%emt 00:00:27]}
15.Nd2 {(Nd2) [%eval 0,41] [%emt 00:02:06]} c4 {(c4) [%eval -12,30] [%emt 00:03:47]}
16.Qxc4 {(Qxc4) [%eval 0,41] [%emt 00:02:49]} Qxc4 {(Bc6) [%eval 5,27] [%emt 00:01:52]}
17.Bxc4 {(Nxc4) [%eval 8,33] [%emt 00:01:22]} Nxe4 {(Nxe4) [%eval 6,31] [%emt 00:04:04]}
18.Nxe4 {(Nxe4) [%eval 0,37] [%emt 00:01:48]} Bxe4 {(Bxe4) [%eval -6,32] [%emt 00:04:48]}
19.Bd3 {(Bd3) [%eval 0,42] [%emt 00:12:40]} Bxg2 {(Bxg2) [%eval 8,30] [%emt 00:00:47]}
20.Rhe1 {(Rhe1) [%eval 0,41] [%emt 00:03:29]} Bf3 {(Bf3) [%eval 1,33] [%emt 00:03:50]}
21.Rd2 {(Rd2) [%eval 0,40] [%emt 00:09:33]} Nc7 {(Bb7) [%eval -5,31] [%emt 00:09:02]}
22.Bc2 {(c4) [%eval 0,41] [%emt 00:01:22]} Bc6 {(Bc6) [%eval -5,33] [%emt 00:02:41]}
23.fxe6 {(fxe6) [%eval 0,43] [%emt 00:01:30]} dxe6 {(dxe6) [%eval -5,33] [%emt 00:00:57]}
24.Nb6 {(Nb6) [%eval 0,44] [%emt 00:01:49]} Rd8 {(Rd8) [%eval -5,36] [%emt 00:03:13]}
25.Rxd8 {(Rxd8) [%eval 0,45] [%emt 00:02:36]} Kxd8 {(Kxd8) [%eval -4,33] [%emt 00:00:37]}
26.Rd1 {(Rd1) [%eval 0,43] [%emt 00:01:09]} Ke8 {(Ke8) [%eval -2,38] [%emt 00:03:04]}
27.Nc4 {(Nc4) [%eval 0,45] [%emt 00:08:21]} Nd5 {(Bf3) [%eval -2,36] [%emt 00:00:39]}
28.Ne5 {(Ne5) [%eval 0,41] [%emt 00:00:54]} Ba8 {(Ba8) [%eval -2,38] [%emt 00:03:44]}
29.b4 {(b4) [%eval 0,44] [%emt 00:01:32]} f6 {(f6) [%eval -2,37] [%emt 00:01:01]}
30.Ba4 {(Ba4) [%eval 0,45] [%emt 00:01:48]} Ke7 {(Ke7) [%eval -2,40] [%emt 00:02:52]}
31.Nc6 {(c4) [%eval 0,43] [%emt 00:01:12]} Kf7 {(Kd7) [%eval -2,38] [%emt 00:03:22]}
32.c4 {(Nd8) [%eval 25,36] [%emt 00:01:34]} Nxb4 {(Nxb4) [%eval -12,33] [%emt 00:04:37]}
33.Nd8 {(Nd8) [%eval 24,37] [%emt 00:01:28]} Kg6 {(Kg6) [%eval -15,33] [%emt 00:03:01]}
34.Rg1 {(Rg1) [%eval 19,38] [%emt 00:02:08]} Kf5 {(Kf5) [%eval -7,31] [%emt 00:02:20]}
35.Nf7 {(Nf7) [%eval 42,38] [%emt 00:03:31]} Be4 {(Be4) [%eval -7,31] [%emt 00:02:02]}
36.Ka1 {(Ka1) [%eval 55,32] [%emt 00:00:35]} Rg8 {(Rg8) [%eval -2,33] [%emt 00:01:41]}
37.Nh6 {(Nh6) [%eval 47,37] [%emt 00:02:08]} gxh6 {(gxh6) [%eval -21,32] [%emt 00:02:01]}
38.Rxg8 {(Rxg8) [%eval 57,34] [%emt 00:01:07]} Bd6 {(Bd6) [%eval -19,33] [%emt 00:01:51]}
39.h3 {(Bd1) [%eval 70,33] [%emt 00:02:10]} h5 {(h5) [%eval -30,30] [%emt 00:05:01]}
40.Rc8 {(Rc8) [%eval 49,33] [%emt 00:01:31]} Kg5 {(Kg5) [%eval -16,29] [%emt 00:01:25]}
41.a3 {(c5) [%eval 62,39] [%emt 00:09:08]} Nd3 {(Nd3) [%eval -17,29] [%emt 00:02:33]}
42.Bd4 {(Bd4) [%eval 79,37] [%emt 00:03:39]} Kh4 {(Bf4) [%eval -11,29] [%emt 00:01:25]}
43.c5 {(Bc2) [%eval 49,32] [%emt 00:01:00]} Nxc5 {(Nxc5) [%eval -21,30] [%emt 00:02:17]}
44.Bxc5 {(Bxc5) [%eval 0,42] [%emt 00:01:21]} Bb7 {(Be5) [%eval -6,31] [%emt 00:02:09]}
45.Bf2 {(Bf2) [%eval 105,32] [%emt 00:00:59]} Kxh3 {(Kxh3) [%eval -4,26] [%emt 00:00:17]}
46.Rc3 {(Rc4) [%eval 140,36] [%emt 00:03:54]} Kg2 {(Kg2) [%eval -60,36] [%emt 00:12:24]}
47.Rc2 {(Rc2) [%eval 135,36] [%emt 00:00:47]} Kf3 {(Kf3) [%eval -90,34] [%emt 00:03:46]}
48.Be1 {(Be8) [%eval 173,32] [%emt 00:00:21]} f5 {(Bd5) [%eval -86,27] [%emt 00:01:02]}
49.Rf2 {(Rf2) [%eval 197,32] [%emt 00:00:22]} Kg4 {(Kg4) [%eval -99,28] [%emt 00:01:57]}
50.Bd1 {(Bd1) [%eval 212,35] [%emt 00:00:54]} Kg5 {(Kg5) [%eval -115,29] [%emt 00:03:47]}
51.Re2 {(Re2) [%eval 223,34] [%emt 00:00:30]} Be4 {(h4) [%eval -120,28] [%emt 00:02:30]}
52.Re3 {(Re3) [%eval 263,33] [%emt 00:01:45]} Be5 {(Be5) [%eval -134,29] [%emt 00:01:11]}
53.Ka2 {(Ka2) [%eval 276,35] [%emt 00:01:00]} Bd5 {(Bd5) [%eval -134,28] [%emt 00:00:07]}
54.Kb1 {(Kb1) [%eval 300,35] [%emt 00:04:27]} Be4 {(Bd4) [%eval -134,31] [%emt 00:00:43]}
55.Ka2 {(Bc2) [%eval 304,35] [%emt 00:01:13]} Bd5 {(Bd5) [%eval 0,48] [%emt 00:00:25]}
56.Bb3 {(Kb1) [%eval 308,31] [%emt 00:00:17]} Bxb3 {(Bf4) [%eval -145,28] [%emt 00:03:23]}
57.Kxb3 {(Kxb3) [%eval 332,32] [%emt 00:00:35]} Bf4 {(Bf4) [%eval -164,30] [%emt 00:01:49]}
58.Rh3 {(Rh3) [%eval 347,32] [%emt 00:00:17]} Kg4 {(e5) [%eval -167,27] [%emt 00:00:37]}
59.Rh4 {(Rh4) [%eval 377,30] [%emt 00:00:22]} Kg5 {(Kg5) [%eval -195,28] [%emt 00:00:48]}
60.Rh1 {(Rh1) [%eval 381,35] [%emt 00:00:19]} Kg4 {(Kg4) [%eval -199,28] [%emt 00:00:30]}
61.Kc4 {(Kc4) [%eval 427,32] [%emt 00:00:35]} e5 {(Bc1) [%eval -217,29] [%emt 00:00:30]}
62.Kd5 {(Kd5) [%eval 458,32] [%emt 00:00:10]} e4 {(e4) [%eval -257,27] [%emt 00:00:29]}
63.Ke6 {(Ke6) [%eval 504,32] [%emt 00:00:16]} Be3 {(Be3) [%eval -264,25] [%emt 00:00:07]}
64.Rh4 {(Rh4) [%eval 542,32] [%emt 00:00:19]} Kg5 {(Kg5) [%eval -307,29] [%emt 00:00:50]}
65.Rh2 {(Rh3) [%eval 585,33] [%emt 00:00:24]} Bd4 {(Kg4) [%eval -278,26] [%emt 00:00:18]}
66.Rd2 {(Rd2) [%eval 622,33] [%emt 00:00:16]} Be3 {(Be3) [%eval -272,30] [%emt 00:00:43]}
67.Rg2 {(Rg2) [%eval 683,34] [%emt 00:00:48]} Kf4 {(Kf4) [%eval -355,29] [%emt 00:00:29]}
68.Rg7 {(a4) [%eval 722,33] [%emt 00:00:27]} h6 {(Bc1) [%eval -516,28] [%emt 00:00:30]}
69.a4 {(a4) [%eval 749,30] [%emt 00:00:16]} Bc1 {(Kf3) [%eval -1051,28] [%emt 00:00:30]}
70.Rg1 {(Rg1) [%eval 800,37] [%emt 00:00:25]} e3 {(Ba3) [%eval -1970,30] [%emt 00:00:30]}
71.Bg3 {(Bg3) [%eval 1263,31] [%emt 00:00:17]} Kf3 {(Kf3) [%eval -8152,37] [%emt 00:00:29]}
1-0[/pgn]

[Graham Banks]

GAME 36

As black, Stockfish was better able to deal with an uncastled king and quickly gained an edge. After queens were exchanged, Houdini's solution was to give up the exchange for an extra pawn and this was good enough to draw the resulting endgame. Stockfish leads by 19.5-16.5 (five wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.11.30"]
[Round "18.2"]
[White "Houdini 6.03 64-bit 8CPU"]
[Black "Stockfish 181117 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "6:21:19 a.m."]
[ECO "A01"]
[Opening "Symmetrical Variation, Larsen"]
[TimeControl "7200+30"]
[PlyCount "147"]
[Number "36"]
[Termination "GUI adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.b3 {[%eval 0,1] [%emt 00:00:00]} b6 {[%eval 0,1] [%emt 00:00:00]}
2.e4 {[%eval 0,1] [%emt 00:00:00]} e6 {[%eval 0,1] [%emt 00:00:00]}
3.Bb2 {[%eval 0,1] [%emt 00:00:00]} Bb7 {[%eval 0,1] [%emt 00:00:00]}
4.Qe2 {[%eval 0,1] [%emt 00:00:00]} c5 {[%eval 0,1] [%emt 00:00:00]}
5.Nc3 {[%eval 0,1] [%emt 00:00:00]} Nc6 {[%eval 0,1] [%emt 00:00:00]}
6.O-O-O {[%eval 0,1] [%emt 00:00:00]} a6 {[%eval 0,1] [%emt 00:00:00]}
7.f4 {[%eval 0,1] [%emt 00:00:00]} b5 {[%eval 0,1] [%emt 00:00:00]}
8.Kb1 {[%eval -12,27] [%emt 00:03:50]} Qc7 {(Rc8) [%eval 38,32] [%emt 00:04:52]}
9.Qe3 {(Qf2) [%eval -19,28] [%emt 00:03:21]} Nf6 {(Rc8) [%eval 25,32] [%emt 00:04:46]}
10.e5 {(e5) [%eval -22,26] [%emt 00:03:39]} Ng4 {(Ng4) [%eval 57,29] [%emt 00:00:56]}
11.Qg3 {(Qg3) [%eval -12,26] [%emt 00:03:14]} h5 {(Nh6) [%eval 55,31] [%emt 00:02:28]}
12.Bd3 {(Bd3) [%eval -10,26] [%emt 00:04:23]} c4 {(d5) [%eval 36,35] [%emt 00:06:40]}
13.Be4 {(Be4) [%eval -5,27] [%emt 00:02:27]} d5 {(Qb6) [%eval 29,35] [%emt 00:06:58]}
14.exd6 {(exd6) [%eval -5,28] [%emt 00:03:50]} Bxd6 {(Qxd6) [%eval 45,34] [%emt 00:02:56]}
15.Nge2 {(Nge2) [%eval -12,31] [%emt 00:03:37]} Kf8 {(f5) [%eval 22,33] [%emt 00:03:43]}
16.Bf3 {(Bf3) [%eval -19,29] [%emt 00:04:02]} Ne7 {(Ne7) [%eval 51,33] [%emt 00:03:05]}
17.Ne4 {(Ne4) [%eval -5,28] [%emt 00:02:06]} Nf5 {(Nf5) [%eval 34,34] [%emt 00:02:26]}
18.Qe1 {(Qe1) [%eval -8,27] [%emt 00:02:48]} Be7 {(Be7) [%eval 27,35] [%emt 00:06:14]}
19.h3 {(N4g3) [%eval -5,29] [%emt 00:02:59]} Nf6 {(cxb3) [%eval 38,33] [%emt 00:10:02]}
20.d3 {(d3) [%eval -12,29] [%emt 00:03:28]} Rd8 {(Rd8) [%eval 26,35] [%emt 00:06:58]}
21.Qf2 {(Qf2) [%eval -12,31] [%emt 00:02:34]} h4 {(h4) [%eval 28,32] [%emt 00:02:51]}
22.Qa7 {(Rhe1) [%eval -12,31] [%emt 00:06:12]} Qb8 {(Ra8) [%eval 38,34] [%emt 00:02:00]}
23.Qxb8 {(Qxb8) [%eval -12,32] [%emt 00:02:44]} Rxb8 {(Rxb8) [%eval 47,34] [%emt 00:00:39]}
24.Nxf6 {(Nxf6) [%eval -7,30] [%emt 00:02:45]} gxf6 {(gxf6) [%eval 65,35] [%emt 00:01:53]}
25.dxc4 {(dxc4) [%eval -24,31] [%emt 00:04:19]} bxc4 {(bxc4) [%eval 57,36] [%emt 00:01:44]}
26.Nd4 {(Nd4) [%eval -47,32] [%emt 00:05:00]} Ne3 {(Ne3) [%eval 46,37] [%emt 00:02:53]}
27.Rd2 {(Rde1) [%eval -28,31] [%emt 00:11:02]} Bxf3 {(Bxf3) [%eval 70,35] [%emt 00:01:02]}
28.Nxf3 {(Nxf3) [%eval -42,31] [%emt 00:04:29]} Rc8 {(Nf5) [%eval 72,36] [%emt 00:03:36]}
29.Bd4 {(Bd4) [%eval -30,28] [%emt 00:02:40]} Nd5 {(Nd5) [%eval 63,37] [%emt 00:01:28]}
30.f5 {(f5) [%eval -40,31] [%emt 00:04:20]} Bb4 {(Bb4) [%eval 70,37] [%emt 00:02:50]}
31.Rdd1 {(Rdd1) [%eval -25,29] [%emt 00:01:36]} Ke7 {(Ke7) [%eval 70,36] [%emt 00:02:17]}
32.Kb2 {(Kb2) [%eval -37,30] [%emt 00:05:44]} cxb3 {(cxb3) [%eval 72,38] [%emt 00:02:08]}
33.axb3 {(cxb3) [%eval -49,32] [%emt 00:02:54]} e5 {(e5) [%eval 68,35] [%emt 00:01:28]}
34.Bxe5 {(Bxe5) [%eval -37,28] [%emt 00:00:22]} Ne3 {(Ne3) [%eval 72,37] [%emt 00:01:28]}
35.Bd4 {(Bd4) [%eval -38,30] [%emt 00:01:49]} Nxd1 {(Nxd1) [%eval 74,36] [%emt 00:00:58]}
36.Rxd1 {(Rxd1) [%eval -31,32] [%emt 00:02:12]} Rcg8 {(Rcg8) [%eval 65,40] [%emt 00:01:41]}
37.Rg1 {(Rg1) [%eval -43,32] [%emt 00:02:37]} Rh5 {(Rh5) [%eval 61,40] [%emt 00:04:09]}
38.c3 {(c3) [%eval -30,25] [%emt 00:00:18]} Bd6 {(Bd6) [%eval 76,37] [%emt 00:01:05]}
39.b4 {(b4) [%eval -37,30] [%emt 00:03:51]} Rxf5 {(Be5) [%eval 51,39] [%emt 00:07:03]}
40.Nxh4 {(Nxh4) [%eval -36,30] [%emt 00:01:35]} Rh5 {(Rh5) [%eval 60,35] [%emt 00:00:21]}
41.Nf3 {(Nf3) [%eval -29,27] [%emt 00:00:22]} a5 {(a5) [%eval 60,39] [%emt 00:00:50]}
42.bxa5 {(bxa5) [%eval -36,29] [%emt 00:03:19]} Rxa5 {(Rxa5) [%eval 60,41] [%emt 00:01:19]}
43.g4 {(g4) [%eval -33,26] [%emt 00:01:34]} Rga8 {(Rga8) [%eval 60,41] [%emt 00:02:09]}
44.Re1 {(Re1) [%eval -31,30] [%emt 00:02:21]} Kf8 {(Kf8) [%eval 51,33] [%emt 00:00:57]}
45.Kc2 {(Kb3) [%eval -39,30] [%emt 00:03:03]} Ra1 {(f5) [%eval 74,36] [%emt 00:01:50]}
46.Re3 {(Re3) [%eval -36,31] [%emt 00:01:29]} Rh1 {(Rh1) [%eval 48,42] [%emt 00:01:29]}
47.Nh4 {(Nh4) [%eval -25,31] [%emt 00:02:13]} Be5 {(Be5) [%eval 60,43] [%emt 00:02:39]}
48.Bc5 {(Bc5) [%eval -26,25] [%emt 00:00:18]} Kg7 {(Kg8) [%eval 60,45] [%emt 00:00:27]}
49.Nf5 {(Nf5) [%eval -23,32] [%emt 00:00:56]} Kg6 {(Kg6) [%eval 60,44] [%emt 00:00:46]}
50.Rf3 {(Ne7) [%eval -38,26] [%emt 00:00:42]} Ra2 {(Ra5) [%eval 64,37] [%emt 00:01:06]}
51.Kb3 {(Kb3) [%eval -26,28] [%emt 00:01:18]} Rah2 {(Rah2) [%eval 57,38] [%emt 00:01:45]}
52.h4 {(h4) [%eval -40,24] [%emt 00:00:10]} Re2 {(Re1) [%eval 39,40] [%emt 00:03:30]}
53.Re3 {(Re3) [%eval -24,29] [%emt 00:00:40]} Rhh2 {(Rhh2) [%eval 48,40] [%emt 00:00:39]}
54.Kc4 {(Kc4) [%eval -20,31] [%emt 00:01:11]} Rxe3 {(Rxe3) [%eval 42,40] [%emt 00:00:26]}
55.Bxe3 {(Bxe3) [%eval -18,33] [%emt 00:00:50]} Rg2 {(Rg2) [%eval 31,43] [%emt 00:01:17]}
56.h5 {(h5) [%eval -20,33] [%emt 00:00:16]} Kh7 {(Kh7) [%eval 25,1] [%emt 00:00:00]}
57.Kd3 {(Kd3) [%eval -19,36] [%emt 00:00:55]} Rxg4 {(Rxg4) [%eval 25,42] [%emt 00:00:28]}
58.c4 {(c4) [%eval -18,34] [%emt 00:00:11]} Rg2 {(Rg2) [%eval 17,43] [%emt 00:01:51]}
59.c5 {(c5) [%eval -18,35] [%emt 00:01:26]} Rh2 {(Rh2) [%eval 8,47] [%emt 00:01:37]}
60.h6 {(h6) [%eval -18,33] [%emt 00:00:14]} Bc7 {(Rh1) [%eval 8,48] [%emt 00:00:47]}
61.Nd6 {(Ke4) [%eval -18,33] [%emt 00:01:25]} Rh3 {(Bb8) [%eval 8,41] [%emt 00:00:46]}
62.Ke4 {(Ke4) [%eval -18,35] [%emt 00:01:05]} Bb8 {(Rh5) [%eval 8,43] [%emt 00:00:47]}
63.Nf5 {(Nf5) [%eval -13,35] [%emt 00:00:56]} Rh1 {(Rh1) [%eval 8,46] [%emt 00:00:28]}
64.c6 {(c6) [%eval -13,34] [%emt 00:00:25]} Rd1 {(Ra1) [%eval 8,47] [%emt 00:00:31]}
65.Bd4 {(Bb6) [%eval -6,34] [%emt 00:02:35]} Rc1 {(Bc7) [%eval 8,46] [%emt 00:01:14]}
66.Ne7 {(Kd5) [%eval -9,35] [%emt 00:00:44]} Bd6 {(Bd6) [%eval 8,46] [%emt 00:00:31]}
67.Be3 {(Be3) [%eval -9,37] [%emt 00:00:47]} Rd1 {(Rc3) [%eval 8,48] [%emt 00:00:28]}
68.Kf5 {(Nf5) [%eval -9,34] [%emt 00:00:44]} Rd3 {(Rd3) [%eval 8,51] [%emt 00:00:35]}
69.Ke4 {(Ke4) [%eval -9,35] [%emt 00:00:08]} Rc3 {(Rc3) [%eval 8,50] [%emt 00:00:31]}
70.Nf5 {(Bd4) [%eval -9,34] [%emt 00:02:43]} Bc7 {(Bc7) [%eval 8,47] [%emt 00:00:31]}
71.Kd5 {(Kd5) [%eval -9,33] [%emt 00:00:20]} Ra3 {(Ra3) [%eval 8,50] [%emt 00:01:55]}
72.Bc5 {(Bc5) [%eval -9,34] [%emt 00:00:36]} Ra1 {(Ra1) [%eval 8,47] [%emt 00:00:24]}
73.Bd6 {(Kc4) [%eval -8,32] [%emt 00:00:13]} Bb6 {(Bb6) [%eval 0,43] [%emt 00:01:09]}
74.Kc4 {(Kc4) [%eval -3,32] [%emt 00:00:27]}
1/2-1/2[/pgn]

[Graham Banks]

GAME 37

A Stockfish exchange sac on f6 is met with an immediate Houdini exchange sac on c3. No advantage is gained by either side, the rooks come off, and the resulting queen and minor pieces endgame is drawn. Stockfish leads by 20.0-17.0 (five wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.11.30"]
[Round "19.1"]
[White "Stockfish 181117 64-bit 8CPU"]
[Black "Houdini 6.03 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "11:14:08 a.m."]
[ECO "D30"]
[Opening "Vienna Variation, QGD"]
[TimeControl "7200+30"]
[PlyCount "100"]
[Number "37"]
[Termination "GUI TB adjudication"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.d4 {[%eval 0,1] [%emt 00:00:00]} d5 {[%eval 0,1] [%emt 00:00:00]}
2.c4 {[%eval 0,1] [%emt 00:00:00]} e6 {[%eval 0,1] [%emt 00:00:00]}
3.Nf3 {[%eval 0,1] [%emt 00:00:00]} Nf6 {[%eval 0,1] [%emt 00:00:00]}
4.Bg5 {[%eval 0,1] [%emt 00:00:00]} Bb4 {[%eval 0,1] [%emt 00:00:00]}
5.Nc3 {[%eval 0,1] [%emt 00:00:00]} dxc4 {[%eval 0,1] [%emt 00:00:00]}
6.e4 {[%eval 0,1] [%emt 00:00:00]} c5 {[%eval 0,1] [%emt 00:00:00]}
7.Bxc4 {[%eval 0,1] [%emt 00:00:00]} cxd4 {[%eval 0,1] [%emt 00:00:00]}
8.Nxd4 {[%eval 0,1] [%emt 00:00:00]} Qa5 {[%eval 0,1] [%emt 00:00:00]}
9.Bd2 {[%eval 0,1] [%emt 00:00:00]} Qc5 {[%eval 0,1] [%emt 00:00:00]}
10.Bb5 {[%eval 0,1] [%emt 00:00:00]} Bd7 {[%eval 0,1] [%emt 00:00:00]}
11.Nb3 {[%eval 0,1] [%emt 00:00:00]} Qe7 {[%eval -26,30] [%emt 00:07:19]}
12.Bd3 {(Bd3) [%eval 25,36] [%emt 00:06:13]} Bxc3 {(Nc6) [%eval -11,29] [%emt 00:02:18]}
13.Bxc3 {(Bxc3) [%eval 46,31] [%emt 00:00:55]} O-O {(O-O) [%eval -21,29] [%emt 00:03:39]}
14.O-O {(O-O) [%eval 30,37] [%emt 00:03:59]} e5 {(e5) [%eval -27,31] [%emt 00:04:38]}
15.Qe1 {(Na5) [%eval 32,38] [%emt 00:05:27]} Rd8 {(Nc6) [%eval -37,29] [%emt 00:07:21]}
16.f4 {(Na5) [%eval 45,30] [%emt 00:00:46]} Nc6 {(Nc6) [%eval -16,26] [%emt 00:01:38]}
17.fxe5 {(fxe5) [%eval 64,32] [%emt 00:02:40]} Nxe5 {(Nxe5) [%eval -18,29] [%emt 00:05:10]}
18.Bc2 {(Qg3) [%eval 36,37] [%emt 00:09:32]} Ba4 {(Rac8) [%eval -23,29] [%emt 00:03:50]}
19.Qg3 {(Qg3) [%eval 41,34] [%emt 00:06:32]} Rac8 {(Rac8) [%eval -20,29] [%emt 00:06:44]}
20.Rxf6 {(Rae1) [%eval 25,37] [%emt 00:04:12]} Rxc3 {(Rxc3) [%eval -16,30] [%emt 00:03:20]}
21.Rxf7 {(Rxf7) [%eval 36,39] [%emt 00:02:32]} Qxf7 {(Qxf7) [%eval -14,31] [%emt 00:02:52]}
22.Qxc3 {(Qxc3) [%eval 27,39] [%emt 00:02:09]} Qc4 {(Qc4) [%eval -7,32] [%emt 00:02:00]}
23.Rd1 {(Qxe5) [%eval 27,40] [%emt 00:01:56]} Rxd1 {(Rxd1) [%eval -7,33] [%emt 00:03:40]}
24.Bxd1 {(Bxd1) [%eval 45,40] [%emt 00:01:27]} Qxe4 {(Qxe4) [%eval -34,29] [%emt 00:00:34]}
25.Bc2 {(Bc2) [%eval 31,42] [%emt 00:02:53]} Qd5 {(Qd5) [%eval -37,34] [%emt 00:03:54]}
26.Qc8 {(Qc8) [%eval 8,42] [%emt 00:02:40]} Kf7 {(Kf7) [%eval -38,32] [%emt 00:00:33]}
27.Qf5 {(Qf5) [%eval 8,42] [%emt 00:01:28]} Ke8 {(Ke8) [%eval -38,35] [%emt 00:04:21]}
28.Qxh7 {(Qxh7) [%eval 32,41] [%emt 00:02:46]} Bxb3 {(Bxb3) [%eval -38,33] [%emt 00:00:33]}
29.Bxb3 {(Bxb3) [%eval 0,46] [%emt 00:10:30]} Qc5 {(Qc5) [%eval -38,35] [%emt 00:03:05]}
30.Kf1 {(Kf1) [%eval 0,49] [%emt 00:01:35]} Qc1 {(Qc1) [%eval -38,34] [%emt 00:01:09]}
31.Ke2 {(Ke2) [%eval 0,49] [%emt 00:01:39]} Qxb2 {(Qxb2) [%eval -3,31] [%emt 00:01:47]}
32.Qc2 {(Qc2) [%eval 0,47] [%emt 00:01:15]} Qxc2 {(Qxc2) [%eval -10,32] [%emt 00:00:31]}
33.Bxc2 {(Bxc2) [%eval 0,52] [%emt 00:01:23]} Ke7 {(b5) [%eval 0,38] [%emt 00:01:40]}
34.Kf2 {(Ke3) [%eval 0,53] [%emt 00:01:12]} Kd6 {(Kd6) [%eval 0,40] [%emt 00:02:28]}
35.h4 {(Kg3) [%eval 0,55] [%emt 00:01:17]} Nc4 {(b5) [%eval 0,42] [%emt 00:02:46]}
36.Bd3 {(Bd3) [%eval 0,55] [%emt 00:01:47]} Ne5 {(Nb2) [%eval 0,42] [%emt 00:01:00]}
37.Be2 {(Bc2) [%eval 0,53] [%emt 00:01:03]} Nc6 {(Nc6) [%eval 0,42] [%emt 00:03:02]}
38.Bd3 {(Bf3) [%eval 0,58] [%emt 00:02:29]} Nb4 {(Ne5) [%eval 0,41] [%emt 00:03:15]}
39.Bb1 {(Be4) [%eval 0,57] [%emt 00:01:16]} b5 {(b5) [%eval 0,42] [%emt 00:03:01]}
40.Ke3 {(g4) [%eval 0,52] [%emt 00:01:14]} Ke5 {(Nd5) [%eval 0,44] [%emt 00:02:05]}
41.Kf3 {(a3) [%eval 0,58] [%emt 00:01:40]} Nc6 {(Nd5) [%eval 0,43] [%emt 00:03:14]}
42.Kg4 {(g4) [%eval 0,58] [%emt 00:01:13]} a5 {(a5) [%eval 0,45] [%emt 00:02:02]}
43.Kg5 {(Kg5) [%eval 0,58] [%emt 00:01:11]} a4 {(a4) [%eval 0,45] [%emt 00:00:38]}
44.g4 {(Kg6) [%eval 0,57] [%emt 00:01:28]} Ne7 {(Ne7) [%eval 0,46] [%emt 00:01:59]}
45.Bd3 {(h5) [%eval 0,56] [%emt 00:01:09]} b4 {(b4) [%eval 0,55] [%emt 00:01:50]}
46.Bc2 {(Bc2) [%eval 0,75] [%emt 00:01:06]} b3 {(b3) [%eval 0,56] [%emt 00:03:52]}
47.Bxb3 {(Bxb3) [%eval 0,78] [%emt 00:01:02]} axb3 {(axb3) [%eval 0,69] [%emt 00:00:24]}
48.axb3 {(axb3) [%eval 0,88] [%emt 00:01:05]} Nd5 {(Nd5) [%eval 0,65] [%emt 00:03:59]}
49.Kg6 {(Kg6) [%eval 0,103] [%emt 00:01:02]} Kf4 {(Kf4) [%eval 0,82] [%emt 00:02:10]}
50.Kxg7 {(h5) [%eval 0,109] [%emt 00:01:15]} Kxg4 {(Kxg4) [%eval 0,99] [%emt 00:00:13]}
1/2-1/2[/pgn]

[Graham Banks]

GAME 38

As black, Stockfish opts for a line that sees the queens come off in return for an uncastled king. Several other exchanges occur as a result, leaving an early endgame, which is eventually drawn. Stockfish leads 20.5-17.5 (five wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.11.30"]
[Round "19.2"]
[White "Houdini 6.03 64-bit 8CPU"]
[Black "Stockfish 181117 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "2:43:04 p.m."]
[ECO "D30"]
[Opening "Vienna Variation, QGD"]
[TimeControl "7200+30"]
[PlyCount "105"]
[Number "38"]
[Termination "GUI TB adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.d4 {[%eval 0,1] [%emt 00:00:00]} d5 {[%eval 0,1] [%emt 00:00:00]}
2.c4 {[%eval 0,1] [%emt 00:00:00]} e6 {[%eval 0,1] [%emt 00:00:00]}
3.Nf3 {[%eval 0,1] [%emt 00:00:00]} Nf6 {[%eval 0,1] [%emt 00:00:00]}
4.Bg5 {[%eval 0,1] [%emt 00:00:00]} Bb4 {[%eval 0,1] [%emt 00:00:00]}
5.Nc3 {[%eval 0,1] [%emt 00:00:00]} dxc4 {[%eval 0,1] [%emt 00:00:00]}
6.e4 {[%eval 0,1] [%emt 00:00:00]} c5 {[%eval 0,1] [%emt 00:00:00]}
7.Bxc4 {[%eval 0,1] [%emt 00:00:00]} cxd4 {[%eval 0,1] [%emt 00:00:00]}
8.Nxd4 {[%eval 0,1] [%emt 00:00:00]} Qa5 {[%eval 0,1] [%emt 00:00:00]}
9.Bd2 {[%eval 0,1] [%emt 00:00:00]} Qc5 {[%eval 0,1] [%emt 00:00:00]}
10.Bb5 {[%eval 0,1] [%emt 00:00:00]} Bd7 {[%eval 0,1] [%emt 00:00:00]}
11.Nb3 {[%eval 0,1] [%emt 00:00:00]} Qe7 {[%eval -8,37] [%emt 00:06:10]}
12.O-O {(Bd3) [%eval 35,30] [%emt 00:07:28]} Bxc3 {(Bxb5) [%eval -8,39] [%emt 00:04:33]}
13.Bxd7 {(Bxd7) [%eval 35,31] [%emt 00:03:09]} Qxd7 {(Nfxd7) [%eval -8,40] [%emt 00:01:48]}
14.Bxc3 {(Bxc3) [%eval 33,32] [%emt 00:02:56]} Nxe4 {(Qxd1) [%eval -13,41] [%emt 00:03:11]}
15.Bxg7 {(Bxg7) [%eval 30,31] [%emt 00:03:30]} Qxd1 {(Rg8) [%eval -12,41] [%emt 00:02:13]}
16.Raxd1 {(Raxd1) [%eval 23,32] [%emt 00:04:16]} Rg8 {(Rg8) [%eval -8,41] [%emt 00:01:25]}
17.Be5 {(Be5) [%eval 26,32] [%emt 00:03:22]} Nc6 {(Nc6) [%eval -8,41] [%emt 00:02:16]}
18.Rfe1 {(Rfe1) [%eval 32,33] [%emt 00:03:44]} Nxe5 {(Nxe5) [%eval -10,41] [%emt 00:03:52]}
19.Rxe4 {(Rxe4) [%eval 23,29] [%emt 00:00:32]} Nc6 {(Nc6) [%eval -10,38] [%emt 00:02:10]}
20.Rh4 {(Rh4) [%eval 24,33] [%emt 00:04:17]} Rg7 {(Rg7) [%eval -8,39] [%emt 00:04:32]}
21.Nc5 {(g3) [%eval 22,32] [%emt 00:11:45]} b6 {(b6) [%eval -8,39] [%emt 00:01:45]}
22.Nb7 {(Ne4) [%eval 33,31] [%emt 00:01:52]} Kf8 {(f5) [%eval -7,39] [%emt 00:02:42]}
23.Rc4 {(Rc4) [%eval 12,31] [%emt 00:07:42]} Ne7 {(Ne7) [%eval 0,44] [%emt 00:05:45]}
24.g3 {(g3) [%eval 19,33] [%emt 00:02:51]} h5 {(h5) [%eval 0,43] [%emt 00:02:24]}
25.Rdd4 {(h3) [%eval 17,32] [%emt 00:06:08]} Rg5 {(Rg5) [%eval 0,46] [%emt 00:07:40]}
26.Nd6 {(Nd6) [%eval 21,33] [%emt 00:02:34]} Rd8 {(Rd5) [%eval 0,51] [%emt 00:04:41]}
27.Rc7 {(Rc7) [%eval 6,35] [%emt 00:08:11]} Ra5 {(Ra5) [%eval 0,52] [%emt 00:04:29]}
28.a3 {(a3) [%eval 0,36] [%emt 00:04:47]} Rc5 {(Rc5) [%eval 0,54] [%emt 00:04:58]}
29.Rxc5 {(Rxc5) [%eval -3,38] [%emt 00:02:41]} bxc5 {(bxc5) [%eval 0,56] [%emt 00:04:59]}
30.Rd2 {(Rd2) [%eval 0,37] [%emt 00:00:25]} Nc6 {(Nc6) [%eval 0,58] [%emt 00:05:51]}
31.Kg2 {(Ne4) [%eval 0,39] [%emt 00:06:43]} Ke7 {(Ke7) [%eval 0,53] [%emt 00:03:29]}
32.Nc4 {(Nc4) [%eval 0,38] [%emt 00:00:42]} Nd4 {(Nd4) [%eval 0,52] [%emt 00:03:18]}
33.f4 {(b4) [%eval 0,38] [%emt 00:08:22]} f6 {(f6) [%eval 0,52] [%emt 00:04:09]}
34.Kh3 {(b4) [%eval 0,34] [%emt 00:00:21]} Kf7 {(Kf7) [%eval 0,49] [%emt 00:03:02]}
35.b4 {(b4) [%eval 0,37] [%emt 00:02:03]} cxb4 {(cxb4) [%eval 0,57] [%emt 00:03:55]}
36.axb4 {(axb4) [%eval 0,38] [%emt 00:00:38]} Kg6 {(Kg6) [%eval 0,59] [%emt 00:03:18]}
37.Ne3 {(Rd3) [%eval 0,39] [%emt 00:02:47]} e5 {(e5) [%eval 0,45] [%emt 00:00:36]}
38.fxe5 {(fxe5) [%eval 0,38] [%emt 00:00:49]} fxe5 {(fxe5) [%eval 0,50] [%emt 00:01:11]}
39.Ra2 {(Ra2) [%eval 0,38] [%emt 00:02:26]} Rb8 {(Rb8) [%eval 0,51] [%emt 00:01:18]}
40.Ra6 {(Rxa7) [%eval 0,38] [%emt 00:00:49]} Rb6 {(Kg5) [%eval 0,53] [%emt 00:00:53]}
41.Rxb6 {(Rxa7) [%eval 0,40] [%emt 00:01:31]} axb6 {(axb6) [%eval 0,62] [%emt 00:00:50]}
42.Nc4 {(g4) [%eval 0,43] [%emt 00:00:25]} e4 {(e4) [%eval 0,70] [%emt 00:04:31]}
43.Nxb6 {(g4) [%eval 0,50] [%emt 00:01:36]} e3 {(e3) [%eval 0,68] [%emt 00:00:39]}
44.Nd5 {(Kg2) [%eval 0,51] [%emt 00:02:05]} e2 {(e2) [%eval 0,61] [%emt 00:00:46]}
45.Nf4 {(Nf4) [%eval 0,53] [%emt 00:00:28]} Kg5 {(Kg5) [%eval 0,65] [%emt 00:03:25]}
46.Nxe2 {(Nxe2) [%eval 0,63] [%emt 00:01:23]} Nxe2 {(Nxe2) [%eval 0,82] [%emt 00:00:47]}
47.b5 {(b5) [%eval 0,67] [%emt 00:00:21]} Kf6 {(Nd4) [%eval 0,82] [%emt 00:00:39]}
48.b6 {(b6) [%eval 0,86] [%emt 00:01:26]} Nd4 {(Nd4) [%eval 0,83] [%emt 00:00:44]}
49.Kh4 {(b7) [%eval 0,86] [%emt 00:00:30]} Kg6 {(Kg6) [%eval 0,94] [%emt 00:00:42]}
50.b7 {(b7) [%eval 0,91] [%emt 00:01:26]} Nc6 {(Nc6) [%eval 0,108] [%emt 00:00:39]}
51.h3 {(h3) [%eval 0,94] [%emt 00:00:48]} Nb8 {(Nb8) [%eval 0,115] [%emt 00:00:42]}
52.g4 {(g4) [%eval 0,95] [%emt 00:00:00]} hxg4 {(hxg4) [%eval 0,126] [%emt 00:00:38]}
53.Kxg4 {(hxg4) [%eval 0,99] [%emt 00:00:00]}
1/2-1/2[/pgn]

[Jouni]

54% for Stockfish. Pohl has 55% after 1000 games. So definitely SF is stronger as my own test shows. Additionally there is now 10+ pull request to get more ELO .