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

[Graham Banks]

GAME 45

Stockfish plays actively on the queenside and things start to look critical, although to be fair, Houdini never seemed too bothered. When Stockfish thought it had a winning plan with 29. Qa8, Houdini responded by allowing its rook to be taken, so that it could blow open the pawn shelter in front of the enemy king and force a draw. Stockfish leads by 24.0-21.0 (five wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.12.01"]
[Round "23.1"]
[White "Stockfish 181117 64-bit 8CPU"]
[Black "Houdini 6.03 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "9:07:17 p.m."]
[ECO "A05"]
[Opening "King's Indian Attack; Reti; Zukertort; A05"]
[TimeControl "7200+30"]
[PlyCount "92"]
[Number "45"]
[Termination "3-fold rep"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.Nf3 {[%eval 0,1] [%emt 00:00:00]} Nf6 {[%eval 0,1] [%emt 00:00:00]}
2.c4 {[%eval 0,1] [%emt 00:00:00]} b6 {[%eval 0,1] [%emt 00:00:00]}
3.d4 {[%eval 0,1] [%emt 00:00:00]} e6 {[%eval 0,1] [%emt 00:00:00]}
4.g3 {[%eval 0,1] [%emt 00:00:00]} Bb4 {[%eval 0,1] [%emt 00:00:00]}
5.Bd2 {[%eval 0,1] [%emt 00:00:00]} Bxd2 {[%eval 0,1] [%emt 00:00:00]}
6.Qxd2 {[%eval 0,1] [%emt 00:00:00]} Ba6 {[%eval 0,1] [%emt 00:00:00]}
7.b3 {[%eval 0,1] [%emt 00:00:00]} c6 {[%eval 0,1] [%emt 00:00:00]}
8.Nc3 {[%eval 0,1] [%emt 00:00:00]} d5 {[%eval 0,1] [%emt 00:00:00]}
9.e4 {[%eval 0,1] [%emt 00:00:00]} dxe4 {[%eval 0,1] [%emt 00:00:00]}
10.Ng5 {[%eval 0,1] [%emt 00:00:00]} Nbd7 {[%eval 0,1] [%emt 00:00:00]}
11.Bg2 {[%eval 0,1] [%emt 00:00:00]} O-O {[%eval 0,1] [%emt 00:00:00]}
12.Ngxe4 {[%eval 0,1] [%emt 00:00:00]} Nxe4 {[%eval 0,1] [%emt 00:00:00]}
13.Nxe4 {[%eval 39,36] [%emt 00:03:04]} Nf6 {(Nf6) [%eval -46,31] [%emt 00:05:18]}
14.O-O {(Qf4) [%eval 69,34] [%emt 00:05:56]} Nxe4 {(Rc8) [%eval -41,33] [%emt 00:03:30]}
15.Bxe4 {(Bxe4) [%eval 47,34] [%emt 00:02:13]} Qc7 {(Qc7) [%eval -43,33] [%emt 00:04:44]}
16.Qc3 {(Qc2) [%eval 58,37] [%emt 00:02:59]} Rad8 {(Rad8) [%eval -35,31] [%emt 00:03:43]}
17.b4 {(Rfd1) [%eval 75,33] [%emt 00:00:42]} c5 {(c5) [%eval -25,32] [%emt 00:02:22]}
18.dxc5 {(dxc5) [%eval 72,36] [%emt 00:02:01]} bxc5 {(bxc5) [%eval -27,33] [%emt 00:04:35]}
19.b5 {(b5) [%eval 75,39] [%emt 00:04:15]} Rd4 {(Rd4) [%eval -25,29] [%emt 00:00:32]}
20.Qf3 {(Qc2) [%eval 82,38] [%emt 00:04:34]} Bc8 {(Bc8) [%eval -23,29] [%emt 00:03:28]}
21.Rfd1 {(a4) [%eval 97,33] [%emt 00:01:02]} e5 {(e5) [%eval -58,36] [%emt 00:09:23]}
22.a4 {(a4) [%eval 106,36] [%emt 00:01:51]} Be6 {(g6) [%eval -49,31] [%emt 00:01:56]}
23.Rxd4 {(Rxd4) [%eval 97,37] [%emt 00:02:37]} exd4 {(exd4) [%eval -55,33] [%emt 00:05:37]}
24.Bd3 {(Bd3) [%eval 106,41] [%emt 00:04:41]} g6 {(Qa5) [%eval -61,35] [%emt 00:08:41]}
25.a5 {(a5) [%eval 101,38] [%emt 00:02:59]} Kg7 {(Bc8) [%eval -50,36] [%emt 00:04:01]}
26.a6 {(b6) [%eval 135,37] [%emt 00:04:03]} Rb8 {(Re8) [%eval -52,34] [%emt 00:15:19]}
27.g4 {(Rb1) [%eval 155,29] [%emt 00:00:48]} Qe5 {(Qd6) [%eval -99,30] [%emt 00:04:55]}
28.h3 {(h3) [%eval 170,32] [%emt 00:01:28]} Rb6 {(Rb6) [%eval -70,31] [%emt 00:10:07]}
29.Qa8 {(Qa8) [%eval 185,34] [%emt 00:01:36]} h5 {(Qg5) [%eval -39,29] [%emt 00:01:14]}
30.Qxa7 {(Qxa7) [%eval 0,47] [%emt 00:14:54]} hxg4 {(hxg4) [%eval -23,27] [%emt 00:00:28]}
31.Qxb6 {(hxg4) [%eval 0,49] [%emt 00:05:06]} g3 {(g3) [%eval -5,34] [%emt 00:01:35]}
32.fxg3 {(Kg2) [%eval 0,51] [%emt 00:03:51]} Qxg3 {(Qxg3) [%eval -5,38] [%emt 00:02:20]}
33.Kh1 {(Kh1) [%eval 0,55] [%emt 00:05:10]} Qxh3 {(Qf3) [%eval -5,40] [%emt 00:01:59]}
34.Kg1 {(Kg1) [%eval 0,1] [%emt 00:00:00]} Qg3 {(Qg3) [%eval -5,42] [%emt 00:01:46]}
35.Kh1 {(Kh1) [%eval 0,57] [%emt 00:06:51]} Qf3 {(Qh3) [%eval -5,44] [%emt 00:05:57]}
36.Kg1 {(Kh2) [%eval 0,59] [%emt 00:07:43]} Qe3 {(Qg3) [%eval -5,43] [%emt 00:02:48]}
37.Kh1 {(Kh2) [%eval 0,60] [%emt 00:10:24]} Qxd3 {(Qh3) [%eval -5,35] [%emt 00:01:46]}
38.a7 {(Qxc5) [%eval 0,54] [%emt 00:03:04]} Qh3 {(Qh3) [%eval -4,40] [%emt 00:01:25]}
39.Kg1 {(Kg1) [%eval 0,1] [%emt 00:00:00]} Qg3 {(Qg3) [%eval -4,40] [%emt 00:00:44]}
40.Kh1 {(Kh1) [%eval 0,59] [%emt 00:03:03]} Qh3 {(Qh3) [%eval -4,44] [%emt 00:02:36]}
41.Kg1 {(Kg1) [%eval 0,1] [%emt 00:00:00]} Qe3 {(Qg3) [%eval -4,39] [%emt 00:01:49]}
42.Kg2 {(Kh2) [%eval 0,55] [%emt 00:03:16]} Qe2 {(Qh3) [%eval -4,43] [%emt 00:01:31]}
43.Kg3 {(Kg1) [%eval 0,49] [%emt 00:02:10]} Qg4 {(Qe3) [%eval -4,42] [%emt 00:01:38]}
44.Kf2 {(Kf2) [%eval 0,59] [%emt 00:02:00]} Qf4 {(Qh4) [%eval -4,44] [%emt 00:02:22]}
45.Kg1 {(Kg2) [%eval 0,60] [%emt 00:03:48]} Qg3 {(Qg3) [%eval -4,48] [%emt 00:01:53]}
46.Kh1 {(Kh1) [%eval 0,62] [%emt 00:03:31]} Qh3 {(Qh3) [%eval -4,47] [%emt 00:03:46]}
1/2-1/2[/pgn]

[Graham Banks]

GAME 46

Houdini's decision to play 16. d5 and end up with an IQP only led to mass exchanges and a drawish rook, bishop and pawns ending. The ending wasn't completely devoid of interest, but the outcome was always obvious. Stockfish leads by 24.5-21.5 (five wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.12.02"]
[Round "23.2"]
[White "Houdini 6.03 64-bit 8CPU"]
[Black "Stockfish 181117 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "1:15:46 a.m."]
[ECO "A05"]
[Opening "King's Indian Attack; Reti; Zukertort; A05"]
[TimeControl "7200+30"]
[PlyCount "117"]
[Number "46"]
[Termination "GUI TB adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.Nf3 {[%eval 0,1] [%emt 00:00:00]} Nf6 {[%eval 0,1] [%emt 00:00:00]}
2.c4 {[%eval 0,1] [%emt 00:00:00]} b6 {[%eval 0,1] [%emt 00:00:00]}
3.d4 {[%eval 0,1] [%emt 00:00:00]} e6 {[%eval 0,1] [%emt 00:00:00]}
4.g3 {[%eval 0,1] [%emt 00:00:00]} Bb4 {[%eval 0,1] [%emt 00:00:00]}
5.Bd2 {[%eval 0,1] [%emt 00:00:00]} Bxd2 {[%eval 0,1] [%emt 00:00:00]}
6.Qxd2 {[%eval 0,1] [%emt 00:00:00]} Ba6 {[%eval 0,1] [%emt 00:00:00]}
7.b3 {[%eval 0,1] [%emt 00:00:00]} c6 {[%eval 0,1] [%emt 00:00:00]}
8.Nc3 {[%eval 0,1] [%emt 00:00:00]} d5 {[%eval 0,1] [%emt 00:00:00]}
9.e4 {[%eval 0,1] [%emt 00:00:00]} dxe4 {[%eval 0,1] [%emt 00:00:00]}
10.Ng5 {[%eval 0,1] [%emt 00:00:00]} Nbd7 {[%eval 0,1] [%emt 00:00:00]}
11.Bg2 {[%eval 0,1] [%emt 00:00:00]} O-O {[%eval 0,1] [%emt 00:00:00]}
12.Ngxe4 {[%eval 0,1] [%emt 00:00:00]} Nxe4 {[%eval 0,1] [%emt 00:00:00]}
13.Nxe4 {[%eval 50,30] [%emt 00:04:53]} Qc7 {(Qc7) [%eval -23,41] [%emt 00:05:57]}
14.O-O {(O-O) [%eval 37,33] [%emt 00:05:34]} Rad8 {(Rad8) [%eval -15,42] [%emt 00:04:11]}
15.Rfe1 {(Qe3) [%eval 40,30] [%emt 00:05:38]} c5 {(Nc5) [%eval -8,34] [%emt 00:01:16]}
16.d5 {(d5) [%eval 25,32] [%emt 00:05:37]} exd5 {(exd5) [%eval -9,37] [%emt 00:02:03]}
17.cxd5 {(cxd5) [%eval 24,26] [%emt 00:00:41]} Bb7 {(Bb7) [%eval -14,43] [%emt 00:16:31]}
18.Rad1 {(Rad1) [%eval 31,30] [%emt 00:03:22]} Rfe8 {(Rfe8) [%eval -8,40] [%emt 00:07:02]}
19.b4 {(b4) [%eval 37,29] [%emt 00:03:34]} Re5 {(h6) [%eval -8,42] [%emt 00:04:59]}
20.Qf4 {(d6) [%eval 44,30] [%emt 00:02:53]} Qb8 {(Bxd5) [%eval -32,41] [%emt 00:05:53]}
21.bxc5 {(bxc5) [%eval 20,33] [%emt 00:06:27]} Nxc5 {(Nxc5) [%eval -19,39] [%emt 00:01:50]}
22.Nxc5 {(Nxc5) [%eval 42,33] [%emt 00:00:32]} Rxe1 {(Rxe1) [%eval -20,40] [%emt 00:01:13]}
23.Rxe1 {(Rxe1) [%eval 32,35] [%emt 00:05:38]} Qxf4 {(Qxf4) [%eval -32,42] [%emt 00:02:33]}
24.gxf4 {(gxf4) [%eval 31,35] [%emt 00:02:54]} bxc5 {(bxc5) [%eval -22,42] [%emt 00:02:36]}
25.Re7 {(Re7) [%eval 19,31] [%emt 00:00:35]} Ba6 {(Ba6) [%eval -8,41] [%emt 00:05:58]}
26.Rc7 {(Rc7) [%eval 30,33] [%emt 00:03:29]} Kf8 {(Kf8) [%eval -8,41] [%emt 00:01:13]}
27.a4 {(a4) [%eval 12,28] [%emt 00:00:50]} Rc8 {(Rd6) [%eval -8,41] [%emt 00:01:36]}
28.Rxa7 {(Rxa7) [%eval 12,34] [%emt 00:03:59]} Bd3 {(Bd3) [%eval -13,46] [%emt 00:01:31]}
29.d6 {(Bh3) [%eval 2,30] [%emt 00:01:06]} Rd8 {(Rd8) [%eval -8,41] [%emt 00:01:02]}
30.Rc7 {(Rc7) [%eval 0,33] [%emt 00:03:53]} c4 {(c4) [%eval 0,42] [%emt 00:01:00]}
31.a5 {(Bb7) [%eval 0,35] [%emt 00:02:40]} Rxd6 {(Rxd6) [%eval 0,44] [%emt 00:01:16]}
32.Bb7 {(Bb7) [%eval 0,35] [%emt 00:00:52]} Re6 {(Rg6) [%eval 0,46] [%emt 00:01:42]}
33.a6 {(Kg2) [%eval 0,37] [%emt 00:05:08]} Re1 {(Re1) [%eval 0,45] [%emt 00:01:41]}
34.Kg2 {(Kg2) [%eval 0,37] [%emt 00:00:00]} Ra1 {(Ra1) [%eval 0,49] [%emt 00:01:53]}
35.Kf3 {(Kf3) [%eval 0,37] [%emt 00:03:13]} Bf1 {(Bf1) [%eval 0,50] [%emt 00:01:33]}
36.Ke3 {(Ke3) [%eval 0,35] [%emt 00:00:48]} c3 {(c3) [%eval 0,52] [%emt 00:02:02]}
37.Bd5 {(Bd5) [%eval 0,37] [%emt 00:02:25]} Bxa6 {(Bxa6) [%eval 0,49] [%emt 00:01:12]}
38.Rxf7 {(Rxf7) [%eval 0,36] [%emt 00:00:44]} Ke8 {(Ke8) [%eval 0,51] [%emt 00:01:46]}
39.Rc7 {(Rc7) [%eval 0,39] [%emt 00:03:20]} Re1 {(Rc1) [%eval 0,52] [%emt 00:01:44]}
40.Kd4 {(Kd4) [%eval 0,36] [%emt 00:02:42]} Re2 {(Re2) [%eval 0,54] [%emt 00:01:18]}
41.Rxc3 {(Rxc3) [%eval 0,36] [%emt 00:01:30]} Rxf2 {(Rxf2) [%eval 0,55] [%emt 00:01:43]}
42.Ke5 {(Ke5) [%eval 0,37] [%emt 00:04:06]} Kd7 {(Kd7) [%eval 0,56] [%emt 00:01:20]}
43.h4 {(Ra3) [%eval 0,36] [%emt 00:03:16]} Re2 {(Re2) [%eval 0,54] [%emt 00:01:33]}
44.Kd4 {(Kf5) [%eval 0,37] [%emt 00:00:46]} Rd2 {(Rh2) [%eval 0,59] [%emt 00:03:24]}
45.Kc5 {(Kc5) [%eval 0,38] [%emt 00:02:44]} Rh2 {(Bd3) [%eval 0,50] [%emt 00:01:04]}
46.Rg3 {(Kd4) [%eval 0,35] [%emt 00:02:06]} Rc2 {(Rc2) [%eval 0,56] [%emt 00:02:24]}
47.Kb6 {(Kd4) [%eval 0,35] [%emt 00:00:38]} Bc8 {(Be2) [%eval 0,53] [%emt 00:01:20]}
48.Rxg7 {(Rxg7) [%eval 0,35] [%emt 00:02:00]} Kd6 {(Kd6) [%eval 0,66] [%emt 00:01:08]}
49.Bh1 {(Bg8) [%eval 0,33] [%emt 00:03:36]} Bf5 {(Rb2) [%eval 0,61] [%emt 00:01:42]}
50.Rg5 {(Rg5) [%eval 0,35] [%emt 00:02:28]} Rb2 {(Rb2) [%eval 0,65] [%emt 00:00:46]}
51.Ka5 {(Ka5) [%eval 0,36] [%emt 00:00:33]} Ke6 {(Ke6) [%eval 0,66] [%emt 00:01:02]}
52.Bd5 {(Bd5) [%eval 0,38] [%emt 00:02:11]} Kxd5 {(Kxd5) [%eval 0,85] [%emt 00:00:54]}
53.Rxf5 {(Rxf5) [%eval 0,40] [%emt 00:00:19]} Ke4 {(Ke4) [%eval 0,114] [%emt 00:00:59]}
54.Rf7 {(Rf7) [%eval 0,46] [%emt 00:02:01]} h6 {(Ra2) [%eval 0,107] [%emt 00:00:56]}
55.f5 {(f5) [%eval 0,46] [%emt 00:01:44]} Ke5 {(Ke5) [%eval 0,114] [%emt 00:00:55]}
56.h5 {(f6) [%eval 0,51] [%emt 00:12:11]} Rf2 {(Rb8) [%eval 0,102] [%emt 00:00:57]}
57.Re7 {(Kb5) [%eval 0,60] [%emt 00:01:13]} Kf6 {(Kf6) [%eval 0,121] [%emt 00:00:53]}
58.Re6 {(Re6) [%eval 0,60] [%emt 00:00:15]} Kxf5 {(Kxf5) [%eval 0,127] [%emt 00:00:05]}
59.Rxh6 {(Rxh6) [%eval 0,83] [%emt 00:01:06]}
1/2-1/2[/pgn]

[Graham Banks]

GAME 47

Stockfish took advantage of its more active postion with a bishop sac on e6 in return for four pawns, three of which were connected passers on the kingside. Things started looking bad for Houdini once the queens came off and those kingside pawns started to roll. At one point, Stockfish's evaluation reached +4 (although Houdini wasn't as pessimistic), but Houdini lived up to its name by salvaging a draw to stay in the match! The big question is did Stockfish throw away a win, and if so where? Stockfish leads by 25.0-22.0 (five wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.12.02"]
[Round "24.1"]
[White "Stockfish 181117 64-bit 8CPU"]
[Black "Houdini 6.03 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "5:12:49 a.m."]
[ECO "B01"]
[Opening "Gubinsky-Melts Defense, Center Counter"]
[TimeControl "7200+30"]
[PlyCount "168"]
[Number "47"]
[Termination "GUI TB adjudication"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.e4 {[%eval 0,1] [%emt 00:00:00]} d5 {[%eval 0,1] [%emt 00:00:00]}
2.exd5 {[%eval 0,1] [%emt 00:00:00]} Qxd5 {[%eval 0,1] [%emt 00:00:00]}
3.Nc3 {[%eval 0,1] [%emt 00:00:00]} Qd6 {[%eval 0,1] [%emt 00:00:00]}
4.d4 {[%eval 0,1] [%emt 00:00:00]} Nf6 {[%eval 0,1] [%emt 00:00:00]}
5.Nf3 {[%eval 0,1] [%emt 00:00:00]} g6 {[%eval 0,1] [%emt 00:00:00]}
6.Nb5 {[%eval 0,1] [%emt 00:00:00]} Qb6 {[%eval 0,1] [%emt 00:00:00]}
7.Bd3 {[%eval 0,1] [%emt 00:00:00]} Bg7 {[%eval -9,27] [%emt 00:03:27]}
8.O-O {(O-O) [%eval 25,33] [%emt 00:04:05]} O-O {(c6) [%eval -13,28] [%emt 00:04:31]}
9.a4 {(Re1) [%eval 37,32] [%emt 00:01:38]} Bg4 {(Bg4) [%eval -19,28] [%emt 00:05:43]}
10.Be2 {(Be2) [%eval 32,35] [%emt 00:04:11]} c6 {(c6) [%eval -35,29] [%emt 00:03:41]}
11.a5 {(a5) [%eval 51,31] [%emt 00:00:49]} Qd8 {(Qd8) [%eval -13,27] [%emt 00:01:40]}
12.Nc3 {(Nc3) [%eval 37,34] [%emt 00:02:21]} Qc7 {(Qc7) [%eval -34,27] [%emt 00:00:33]}
13.h3 {(h3) [%eval 47,34] [%emt 00:03:58]} Bxf3 {(Bxf3) [%eval -27,31] [%emt 00:05:01]}
14.Bxf3 {(Bxf3) [%eval 37,34] [%emt 00:01:44]} Rd8 {(Rd8) [%eval -27,29] [%emt 00:05:03]}
15.Re1 {(Re1) [%eval 35,38] [%emt 00:03:28]} e6 {(Na6) [%eval -29,28] [%emt 00:09:55]}
16.Bg5 {(g3) [%eval 53,36] [%emt 00:08:35]} Rd7 {(Rd7) [%eval -15,27] [%emt 00:02:47]}
17.b4 {(Ra4) [%eval 27,35] [%emt 00:02:23]} h6 {(h6) [%eval -11,29] [%emt 00:02:41]}
18.Bh4 {(Bh4) [%eval 42,35] [%emt 00:01:07]} Nd5 {(Nd5) [%eval -18,32] [%emt 00:07:39]}
19.Nxd5 {(Nxd5) [%eval 39,38] [%emt 00:03:05]} cxd5 {(cxd5) [%eval -13,31] [%emt 00:05:25]}
20.c3 {(c3) [%eval 47,35] [%emt 00:01:59]} Nc6 {(Nc6) [%eval -12,31] [%emt 00:03:52]}
21.Bg3 {(Bg3) [%eval 29,39] [%emt 00:06:17]} Qc8 {(Qc8) [%eval -10,33] [%emt 00:02:11]}
22.a6 {(Be2) [%eval 21,38] [%emt 00:04:40]} b6 {(b6) [%eval -10,31] [%emt 00:02:14]}
23.Bg4 {(Qd3) [%eval 20,37] [%emt 00:05:36]} Ne7 {(Ne7) [%eval -10,32] [%emt 00:02:53]}
24.Qd3 {(Qd3) [%eval 25,37] [%emt 00:01:30]} Rd8 {(Qd8) [%eval -10,34] [%emt 00:03:45]}
25.Bf4 {(Bf4) [%eval 42,34] [%emt 00:03:14]} Qd7 {(Qd7) [%eval -10,33] [%emt 00:03:04]}
26.Ra2 {(Qe3) [%eval 30,34] [%emt 00:03:00]} Rac8 {(Rf8) [%eval -3,27] [%emt 00:01:41]}
27.Rae2 {(Rae2) [%eval 84,34] [%emt 00:00:43]} Kh8 {(Kh8) [%eval -10,31] [%emt 00:03:05]}
28.Bxe6 {(Ra2) [%eval 119,36] [%emt 00:01:32]} fxe6 {(fxe6) [%eval -41,34] [%emt 00:04:55]}
29.Rxe6 {(Rxe6) [%eval 98,40] [%emt 00:02:34]} Ng8 {(Ng8) [%eval -48,34] [%emt 00:03:02]}
30.Qxg6 {(Qxg6) [%eval 110,37] [%emt 00:00:57]} Rf8 {(Rf8) [%eval -44,33] [%emt 00:02:16]}
31.Bd6 {(Bd6) [%eval 100,38] [%emt 00:02:07]} Rf6 {(Rf6) [%eval -63,33] [%emt 00:07:59]}
32.Rxf6 {(Rxf6) [%eval 138,33] [%emt 00:00:49]} Bxf6 {(Bxf6) [%eval -54,32] [%emt 00:02:34]}
33.Bf4 {(Bf4) [%eval 104,38] [%emt 00:02:30]} b5 {(Bg7) [%eval -52,32] [%emt 00:05:35]}
34.Bxh6 {(Bxh6) [%eval 116,36] [%emt 00:02:14]} Qh7 {(Qh7) [%eval -58,31] [%emt 00:02:09]}
35.Qg4 {(Qg4) [%eval 121,38] [%emt 00:02:26]} Rxc3 {(Rxc3) [%eval -46,30] [%emt 00:02:31]}
36.Re8 {(Re8) [%eval 105,39] [%emt 00:03:13]} Rc6 {(Rc6) [%eval -41,26] [%emt 00:00:15]}
37.Qh5 {(Qh5) [%eval 100,38] [%emt 00:02:23]} Rxa6 {(Rxa6) [%eval -58,30] [%emt 00:02:18]}
38.g4 {(g4) [%eval 103,39] [%emt 00:02:26]} Rc6 {(Rc6) [%eval -48,29] [%emt 00:01:09]}
39.Qxd5 {(Kg2) [%eval 109,39] [%emt 00:00:58]} Rc7 {(Rc7) [%eval -45,28] [%emt 00:01:42]}
40.Be3 {(Be3) [%eval 124,37] [%emt 00:01:46]} Qf7 {(Re7) [%eval -44,29] [%emt 00:05:02]}
41.Qxb5 {(Qxb5) [%eval 129,32] [%emt 00:01:11]} Rd7 {(Rd7) [%eval -64,29] [%emt 00:01:59]}
42.Rc8 {(Rc8) [%eval 124,34] [%emt 00:01:34]} Qe6 {(Qe6) [%eval -59,27] [%emt 00:00:20]}
43.Qd3 {(Rf8) [%eval 143,31] [%emt 00:00:43]} Bd8 {(Rh7) [%eval -58,28] [%emt 00:01:19]}
44.Qc3 {(Qc3) [%eval 145,37] [%emt 00:07:45]} Qe4 {(Qe4) [%eval -51,28] [%emt 00:01:02]}
45.Qc5 {(Qc5) [%eval 135,38] [%emt 00:02:49]} Bb6 {(Bb6) [%eval -58,29] [%emt 00:01:37]}
46.Qh5 {(Qh5) [%eval 144,34] [%emt 00:00:49]} Rh7 {(Rh7) [%eval -75,29] [%emt 00:02:08]}
47.Qg5 {(Qg5) [%eval 142,37] [%emt 00:02:07]} Rg7 {(Rg7) [%eval -69,29] [%emt 00:00:11]}
48.Qf6 {(Qf6) [%eval 141,38] [%emt 00:01:57]} Qg6 {(Qg6) [%eval -79,33] [%emt 00:01:20]}
49.Qxg6 {(Qxg6) [%eval 134,39] [%emt 00:01:14]} Rxg6 {(Rxg6) [%eval -59,30] [%emt 00:00:34]}
50.Kg2 {(d5) [%eval 118,40] [%emt 00:03:24]} Kg7 {(Kh7) [%eval -51,27] [%emt 00:00:45]}
51.Rc4 {(Kf3) [%eval 142,32] [%emt 00:00:28]} Ne7 {(Ne7) [%eval -57,30] [%emt 00:02:06]}
52.Kf3 {(Kf3) [%eval 140,36] [%emt 00:02:20]} Rf6 {(Rf6) [%eval -66,26] [%emt 00:00:12]}
53.Ke4 {(Ke4) [%eval 157,37] [%emt 00:02:10]} Re6 {(Re6) [%eval -70,27] [%emt 00:00:53]}
54.Kd3 {(Kd3) [%eval 155,36] [%emt 00:01:37]} Nd5 {(Nd5) [%eval -80,26] [%emt 00:00:11]}
55.h4 {(h4) [%eval 162,34] [%emt 00:00:42]} Re8 {(Kf7) [%eval -69,27] [%emt 00:01:16]}
56.Bg5 {(Bc1) [%eval 169,34] [%emt 00:01:04]} Kf7 {(Kf7) [%eval -55,27] [%emt 00:00:32]}
57.f3 {(f3) [%eval 153,33] [%emt 00:01:04]} Bc7 {(Bc7) [%eval -89,27] [%emt 00:02:09]}
58.Bd2 {(Bd2) [%eval 160,35] [%emt 00:00:30]} Bd6 {(Bd6) [%eval -71,26] [%emt 00:00:42]}
59.h5 {(h5) [%eval 202,34] [%emt 00:01:58]} a6 {(a6) [%eval -95,29] [%emt 00:02:13]}
60.Rc6 {(Rc6) [%eval 202,38] [%emt 00:01:05]} Bxb4 {(Bxb4) [%eval -86,28] [%emt 00:00:28]}
61.Rxa6 {(Rxa6) [%eval 224,35] [%emt 00:01:41]} Bxd2 {(Bxd2) [%eval -89,28] [%emt 00:00:35]}
62.Kxd2 {(Kxd2) [%eval 238,36] [%emt 00:01:36]} Rg8 {(Rd8) [%eval -160,28] [%emt 00:01:47]}
63.Ra7 {(Ra5) [%eval 292,35] [%emt 00:02:23]} Ke6 {(Ke6) [%eval -192,29] [%emt 00:00:54]}
64.Kd3 {(Kd3) [%eval 298,40] [%emt 00:00:54]} Rd8 {(Rd8) [%eval -194,31] [%emt 00:00:22]}
65.Ke4 {(Ra5) [%eval 333,38] [%emt 00:03:01]} Nc3 {(Nc3) [%eval -180,28] [%emt 00:00:27]}
66.Ke3 {(Ke3) [%eval 343,31] [%emt 00:00:18]} Nd5 {(Nd5) [%eval -194,27] [%emt 00:00:07]}
67.Ke4 {(Kd3) [%eval 389,35] [%emt 00:02:37]} Nc3 {(Nc3) [%eval 0,60] [%emt 00:00:20]}
68.Ke3 {(Ke3) [%eval 401,28] [%emt 00:00:18]} Nd5 {(Nb5) [%eval 0,64] [%emt 00:00:40]}
69.Kf2 {(Kd3) [%eval 417,31] [%emt 00:00:35]} Nf4 {(Kf6) [%eval -227,27] [%emt 00:00:50]}
70.Kg3 {(Kg3) [%eval 452,34] [%emt 00:00:23]} Rxd4 {(Ne2) [%eval -215,32] [%emt 00:00:23]}
71.h6 {(h6) [%eval 210,49] [%emt 00:01:16]} Ng6 {(Ng6) [%eval -199,30] [%emt 00:00:04]}
72.g5 {(Ra6) [%eval 210,53] [%emt 00:00:31]} Rd1 {(Rd1) [%eval -215,29] [%emt 00:00:44]}
73.Ra6 {(Ra6) [%eval 210,52] [%emt 00:01:17]} Kf5 {(Kf5) [%eval -179,30] [%emt 00:00:14]}
74.Ra5 {(Ra5) [%eval 202,54] [%emt 00:00:31]} Ke6 {(Ke6) [%eval -179,33] [%emt 00:00:05]}
75.f4 {(f4) [%eval 202,56] [%emt 00:00:29]} Nf8 {(Nf8) [%eval -179,39] [%emt 00:00:31]}
76.f5 {(Ra6) [%eval 202,56] [%emt 00:00:31]} Kf7 {(Kf7) [%eval -173,41] [%emt 00:01:19]}
77.Kg2 {(Ra6) [%eval 202,60] [%emt 00:01:26]} Rd4 {(Rd4) [%eval -146,35] [%emt 00:00:13]}
78.Kf3 {(Kf3) [%eval 202,60] [%emt 00:00:43]} Kg8 {(Kg8) [%eval -99,29] [%emt 00:00:21]}
79.Ra8 {(Ra8) [%eval 175,63] [%emt 00:03:52]} Rh4 {(Rh4) [%eval -32,30] [%emt 00:00:24]}
80.Ke3 {(Ra7) [%eval 0,40] [%emt 00:01:38]} Rh1 {(Rh1) [%eval 0,30] [%emt 00:00:16]}
81.Ra7 {(Ke4) [%eval 0,56] [%emt 00:00:16]} Nh7 {(Nh7) [%eval 0,39] [%emt 00:00:25]}
82.f6 {(g6) [%eval 0,62] [%emt 00:00:17]} Rh3 {(Nxg5) [%eval 0,39] [%emt 00:00:28]}
83.Kf4 {(Kf4) [%eval 0,55] [%emt 00:00:17]} Nxf6 {(Nxf6) [%eval 0,40] [%emt 00:00:16]}
84.gxf6 {(Kf5) [%eval 0,66] [%emt 00:00:28]} Rxh6 {(Rxh6) [%eval 0,99] [%emt 00:00:00]}
1/2-1/2[/pgn]

[Graham Banks]

GAME 48

Houdini's 13. c6 led to an interesting period of early middlegame play, which resulted in Stockfish cleverly equalising. Most pieces came off soon after, leaving a rook, minor piece and pawns endgame. Another draw, leaving Stockfish leading by 25.5-22.5 (five wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.12.02"]
[Round "24.2"]
[White "Houdini 6.03 64-bit 8CPU"]
[Black "Stockfish 181117 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "10:25:15 a.m."]
[ECO "B01"]
[Opening "Gubinsky-Melts Defense, Center Counter"]
[TimeControl "7200+30"]
[PlyCount "111"]
[Number "48"]
[Termination "GUI TB adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.e4 {[%eval 0,1] [%emt 00:00:00]} d5 {[%eval 0,1] [%emt 00:00:00]}
2.exd5 {[%eval 0,1] [%emt 00:00:00]} Qxd5 {[%eval 0,1] [%emt 00:00:00]}
3.Nc3 {[%eval 0,1] [%emt 00:00:00]} Qd6 {[%eval 0,1] [%emt 00:00:00]}
4.d4 {[%eval 0,1] [%emt 00:00:00]} Nf6 {[%eval 0,1] [%emt 00:00:00]}
5.Nf3 {[%eval 0,1] [%emt 00:00:00]} g6 {[%eval 0,1] [%emt 00:00:00]}
6.Nb5 {[%eval 0,1] [%emt 00:00:00]} Qb6 {[%eval 0,1] [%emt 00:00:00]}
7.Bd3 {[%eval 0,1] [%emt 00:00:00]} c6 {[%eval -16,36] [%emt 00:06:27]}
8.Na3 {(Na3) [%eval 17,30] [%emt 00:05:59]} Bg7 {(Bg7) [%eval -3,33] [%emt 00:01:08]}
9.O-O {(O-O) [%eval 19,27] [%emt 00:02:16]} O-O {(O-O) [%eval -2,36] [%emt 00:05:03]}
10.Nc4 {(Nc4) [%eval 12,28] [%emt 00:03:48]} Qc7 {(Qc7) [%eval 0,37] [%emt 00:06:08]}
11.Re1 {(Re1) [%eval 26,26] [%emt 00:00:31]} c5 {(c5) [%eval 0,36] [%emt 00:02:10]}
12.dxc5 {(dxc5) [%eval 36,27] [%emt 00:02:25]} Na6 {(Rd8) [%eval -20,35] [%emt 00:10:24]}
13.c6 {(c6) [%eval 37,28] [%emt 00:03:11]} Nc5 {(Nb4) [%eval -15,32] [%emt 00:01:15]}
14.Nce5 {(Bf1) [%eval 30,28] [%emt 00:04:05]} Nxd3 {(Nxd3) [%eval 0,30] [%emt 00:00:54]}
15.cxd3 {(Qxd3) [%eval 20,29] [%emt 00:03:57]} Be6 {(bxc6) [%eval 0,32] [%emt 00:01:18]}
16.Bd2 {(Bf4) [%eval 18,28] [%emt 00:06:55]} Bd5 {(Bd5) [%eval 0,34] [%emt 00:01:27]}
17.Rc1 {(Rc1) [%eval 27,28] [%emt 00:07:07]} Rfc8 {(Rfc8) [%eval 0,37] [%emt 00:01:24]}
18.Nd4 {(Bf4) [%eval 11,30] [%emt 00:05:18]} e6 {(Ne8) [%eval 0,36] [%emt 00:08:08]}
19.Qa4 {(Qa4) [%eval 17,30] [%emt 00:02:53]} Ne8 {(Ne8) [%eval -8,38] [%emt 00:01:18]}
20.Bf4 {(Bf4) [%eval 28,26] [%emt 00:01:44]} Qb6 {(g5) [%eval -8,42] [%emt 00:13:54]}
21.b3 {(b3) [%eval 32,28] [%emt 00:03:06]} a6 {(Bxe5) [%eval -8,39] [%emt 00:01:37]}
22.h3 {(h3) [%eval 33,30] [%emt 00:07:32]} Bxe5 {(Bxe5) [%eval -8,41] [%emt 00:02:02]}
23.Bxe5 {(Bxe5) [%eval 12,33] [%emt 00:04:56]} f6 {(f6) [%eval -28,41] [%emt 00:02:21]}
24.Bg3 {(Bg3) [%eval 24,33] [%emt 00:02:33]} e5 {(e5) [%eval -16,40] [%emt 00:01:09]}
25.Ne2 {(Ne2) [%eval 14,33] [%emt 00:04:02]} Rxc6 {(Rxc6) [%eval -8,40] [%emt 00:01:20]}
26.Rxc6 {(Rxc6) [%eval 9,35] [%emt 00:03:25]} Qxc6 {(Qxc6) [%eval -8,45] [%emt 00:01:17]}
27.Qxc6 {(Qxc6) [%eval 9,36] [%emt 00:02:21]} Bxc6 {(Bxc6) [%eval -8,46] [%emt 00:01:17]}
28.d4 {(d4) [%eval -1,36] [%emt 00:03:47]} exd4 {(exd4) [%eval -8,47] [%emt 00:01:27]}
29.Nxd4 {(Nxd4) [%eval -1,33] [%emt 00:00:28]} Bd7 {(Bd7) [%eval -8,47] [%emt 00:01:57]}
30.Re7 {(Re7) [%eval -1,36] [%emt 00:03:47]} Rd8 {(Rd8) [%eval -8,49] [%emt 00:02:19]}
31.f3 {(Bf4) [%eval -1,37] [%emt 00:02:27]} Kf8 {(Bc8) [%eval -4,42] [%emt 00:01:49]}
32.Rxh7 {(Rxh7) [%eval 0,34] [%emt 00:02:19]} Bxh3 {(Bxh3) [%eval 0,48] [%emt 00:07:04]}
33.gxh3 {(Bf2) [%eval 0,36] [%emt 00:02:48]} Rxd4 {(Rxd4) [%eval 0,52] [%emt 00:09:42]}
34.Rxb7 {(Rxb7) [%eval 0,36] [%emt 00:00:59]} Rd1 {(Rd1) [%eval 0,52] [%emt 00:01:38]}
35.Kf2 {(Kf2) [%eval 0,37] [%emt 00:02:56]} Rd2 {(Rd2) [%eval 0,52] [%emt 00:01:20]}
36.Ke3 {(Ke3) [%eval 0,36] [%emt 00:00:57]} Rxa2 {(Rxa2) [%eval 0,53] [%emt 00:01:55]}
37.b4 {(b4) [%eval 0,37] [%emt 00:03:27]} Kg8 {(Kg8) [%eval 0,52] [%emt 00:01:47]}
38.Rb6 {(Ra7) [%eval 0,35] [%emt 00:02:14]} Kf7 {(Kf7) [%eval 0,48] [%emt 00:00:50]}
39.Be1 {(Ke4) [%eval 0,34] [%emt 00:00:50]} Ra3 {(Ke7) [%eval 0,45] [%emt 00:01:15]}
40.Ke4 {(Ke2) [%eval 0,35] [%emt 00:01:51]} g5 {(f5) [%eval 0,44] [%emt 00:00:59]}
41.Bf2 {(Bg3) [%eval 0,33] [%emt 00:01:37]} f5 {(a5) [%eval 0,47] [%emt 00:00:57]}
42.Ke5 {(Ke5) [%eval 0,34] [%emt 00:01:32]} Rxf3 {(a5) [%eval 0,49] [%emt 00:00:56]}
43.Bd4 {(Bc5) [%eval 0,37] [%emt 00:02:12]} f4 {(Rxh3) [%eval 0,48] [%emt 00:00:47]}
44.Rb7 {(Rxa6) [%eval 0,36] [%emt 00:01:44]} Kg6 {(Kg6) [%eval 0,47] [%emt 00:00:58]}
45.Re7 {(Re7) [%eval 0,37] [%emt 00:00:27]} Rf1 {(Rf1) [%eval 0,50] [%emt 00:00:56]}
46.Re6 {(Re6) [%eval 0,37] [%emt 00:01:24]} Kf7 {(Kf7) [%eval 0,52] [%emt 00:00:51]}
47.Rxa6 {(Rxa6) [%eval 0,38] [%emt 00:00:30]} Rb1 {(Rb1) [%eval 0,43] [%emt 00:00:45]}
48.Bc5 {(Bc5) [%eval 0,38] [%emt 00:01:54]} Rd1 {(Rd1) [%eval 0,43] [%emt 00:00:43]}
49.h4 {(Kf5) [%eval 0,38] [%emt 00:01:08]} gxh4 {(gxh4) [%eval 0,55] [%emt 00:00:45]}
50.Kxf4 {(Kxf4) [%eval 0,38] [%emt 00:03:40]} Rf1 {(Nf6) [%eval 0,60] [%emt 00:00:47]}
51.Kg5 {(Kg4) [%eval 0,37] [%emt 00:01:25]} h3 {(Nf6) [%eval 0,57] [%emt 00:00:44]}
52.Rh6 {(Rh6) [%eval 0,39] [%emt 00:01:11]} Nf6 {(Nf6) [%eval 0,61] [%emt 00:00:45]}
53.Rxh3 {(Bd4) [%eval 0,40] [%emt 00:01:09]} Ne4 {(Ne4) [%eval 0,88] [%emt 00:00:44]}
54.Kh6 {(Kg4) [%eval 0,40] [%emt 00:01:08]} Rf6 {(Rf6) [%eval 0,75] [%emt 00:00:49]}
55.Kh5 {(Kh5) [%eval 0,38] [%emt 00:00:15]} Nxc5 {(Rf5) [%eval 0,101] [%emt 00:00:42]}
56.bxc5 {(bxc5) [%eval 0,99] [%emt 00:00:00]}
1/2-1/2[/pgn]

[ernest]

Hi Graham,

What are your adjudication rules in this tournament ?

I see many draws end with 5 pieces (then obvious), but not all !
And how about the wins ?

Adjudication similar to TCEC ?

TIA

[Graham Banks]

Hi Graham,

What are your adjudication rules in this tournament ?

I see many draws end with 5 pieces (then obvious), but not all !
And how about the wins ?

Adjudication similar to TCEC ?

TIA

Default ChessGUI adjudication rules.

[Graham Banks]

GAME 49

Stockfish thought that it had a nice advantage throughout most of the game, but that was illusory. In reality, all of the pawns remained on the board and once the minor pieces came off, the position was pretty much locked up. After much shuffling, the game predictably ended in a draw. Stockfish leads by 26.0-23.0 (five wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.12.02"]
[Round "25.1"]
[White "Stockfish 181117 64-bit 8CPU"]
[Black "Houdini 6.03 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "2:33:12 p.m."]
[ECO "A21"]
[Opening "Kramnik-Shirov Variation, English"]
[TimeControl "7200+30"]
[PlyCount "161"]
[Number "49"]
[Termination "GUI adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.c4 {[%eval 0,1] [%emt 00:00:00]} e5 {[%eval 0,1] [%emt 00:00:00]}
2.Nc3 {[%eval 0,1] [%emt 00:00:00]} Bb4 {[%eval 0,1] [%emt 00:00:00]}
3.Nd5 {[%eval 0,1] [%emt 00:00:00]} Bc5 {[%eval 0,1] [%emt 00:00:00]}
4.Nf3 {[%eval 0,1] [%emt 00:00:00]} d6 {[%eval 0,1] [%emt 00:00:00]}
5.b4 {[%eval 0,1] [%emt 00:00:00]} Bb6 {[%eval 0,1] [%emt 00:00:00]}
6.a4 {[%eval 45,34] [%emt 00:03:59]} c6 {(c6) [%eval -32,28] [%emt 00:04:00]}
7.Nxb6 {(Nxb6) [%eval 41,31] [%emt 00:01:40]} axb6 {(axb6) [%eval -26,28] [%emt 00:02:38]}
8.Bb2 {(Bb2) [%eval 56,32] [%emt 00:04:46]} Ne7 {(Ne7) [%eval -37,28] [%emt 00:10:51]}
9.e3 {(d3) [%eval 50,33] [%emt 00:03:01]} O-O {(O-O) [%eval -30,27] [%emt 00:04:14]}
10.Be2 {(Be2) [%eval 57,33] [%emt 00:02:14]} Ng6 {(Na6) [%eval -32,27] [%emt 00:02:58]}
11.O-O {(O-O) [%eval 50,29] [%emt 00:01:58]} Bf5 {(Re8) [%eval -28,27] [%emt 00:08:47]}
12.d3 {(d4) [%eval 51,30] [%emt 00:05:59]} Qe7 {(Qe7) [%eval -31,26] [%emt 00:07:10]}
13.Qb3 {(Qb3) [%eval 51,31] [%emt 00:06:46]} Nd7 {(Nd7) [%eval -28,25] [%emt 00:02:52]}
14.Nd2 {(Nd2) [%eval 50,30] [%emt 00:02:02]} h6 {(Rfe8) [%eval -37,27] [%emt 00:07:24]}
15.Bc3 {(Ne4) [%eval 45,31] [%emt 00:01:54]} c5 {(Nh4) [%eval -29,25] [%emt 00:06:57]}
16.b5 {(b5) [%eval 61,36] [%emt 00:04:13]} Nf6 {(Nf6) [%eval -51,27] [%emt 00:05:11]}
17.Rfe1 {(Rfe1) [%eval 70,32] [%emt 00:01:48]} Rfe8 {(Rfe8) [%eval -63,29] [%emt 00:06:46]}
18.Qb2 {(Bf1) [%eval 71,35] [%emt 00:06:13]} Nf8 {(Bg4) [%eval -48,26] [%emt 00:02:35]}
19.Qc2 {(a5) [%eval 66,34] [%emt 00:03:00]} Bg6 {(Bg4) [%eval -45,27] [%emt 00:02:50]}
20.e4 {(Bb2) [%eval 80,33] [%emt 00:01:09]} Ne6 {(Ne6) [%eval -47,29] [%emt 00:02:07]}
21.Nf1 {(Nf1) [%eval 85,38] [%emt 00:02:53]} Nd4 {(h5) [%eval -53,23] [%emt 00:00:23]}
22.Qd1 {(Qd1) [%eval 90,32] [%emt 00:01:47]} Ra7 {(Qd7) [%eval -49,29] [%emt 00:01:50]}
23.Ne3 {(Ne3) [%eval 85,33] [%emt 00:01:55]} Rea8 {(Rea8) [%eval -48,27] [%emt 00:04:16]}
24.h3 {(Ra2) [%eval 79,35] [%emt 00:01:37]} Qd8 {(Rf8) [%eval -57,28] [%emt 00:03:33]}
25.Bg4 {(Ra2) [%eval 95,36] [%emt 00:02:39]} Nxg4 {(h5) [%eval -63,29] [%emt 00:03:55]}
26.hxg4 {(hxg4) [%eval 88,46] [%emt 00:01:44]} f6 {(f6) [%eval -79,34] [%emt 00:05:04]}
27.g3 {(g3) [%eval 88,49] [%emt 00:01:39]} Bf7 {(Bf7) [%eval -70,31] [%emt 00:01:22]}
28.Kg2 {(Kg2) [%eval 88,48] [%emt 00:13:27]} Qd7 {(Ne6) [%eval -69,31] [%emt 00:01:51]}
29.Rh1 {(Nf5) [%eval 88,41] [%emt 00:01:53]} Be6 {(Rf8) [%eval -69,31] [%emt 00:02:08]}
30.f3 {(Nf5) [%eval 88,41] [%emt 00:04:17]} Rd8 {(Bf7) [%eval -69,30] [%emt 00:02:29]}
31.f4 {(Nf5) [%eval 88,42] [%emt 00:01:48]} Re8 {(Rda8) [%eval -69,30] [%emt 00:01:33]}
32.Nf5 {(Bd2) [%eval 88,40] [%emt 00:01:43]} Bxf5 {(Bxf5) [%eval -69,32] [%emt 00:01:45]}
33.gxf5 {(gxf5) [%eval 88,45] [%emt 00:01:24]} Qf7 {(Qf7) [%eval -69,33] [%emt 00:02:03]}
34.Bxd4 {(Rh4) [%eval 88,47] [%emt 00:01:26]} cxd4 {(cxd4) [%eval -49,33] [%emt 00:01:01]}
35.Rh2 {(Rh4) [%eval 88,43] [%emt 00:01:11]} Kh8 {(Raa8) [%eval -49,37] [%emt 00:01:55]}
36.Rh4 {(Rh4) [%eval 88,47] [%emt 00:01:13]} Ra5 {(Kh7) [%eval -49,36] [%emt 00:00:30]}
37.Rg4 {(Qd2) [%eval 88,41] [%emt 00:01:04]} Rea8 {(Rea8) [%eval -80,34] [%emt 00:05:10]}
38.Rh4 {(Rg6) [%eval 88,45] [%emt 00:02:02]} Re8 {(Qf8) [%eval -8,53] [%emt 00:00:49]}
39.Ra2 {(Qd2) [%eval 88,42] [%emt 00:01:20]} Rea8 {(Rea8) [%eval -63,36] [%emt 00:09:02]}
40.Kf3 {(Qb3) [%eval 88,45] [%emt 00:01:11]} Kg8 {(Kg8) [%eval -59,31] [%emt 00:02:41]}
41.Qb3 {(Qc2) [%eval 88,45] [%emt 00:01:10]} Kh7 {(Kh8) [%eval -60,34] [%emt 00:01:11]}
42.Rh1 {(Qb4) [%eval 88,45] [%emt 00:01:47]} Kh8 {(R5a7) [%eval -60,32] [%emt 00:00:46]}
43.Qb4 {(Qb4) [%eval 88,45] [%emt 00:00:59]} Qc7 {(Qf8) [%eval -60,32] [%emt 00:00:09]}
44.Raa1 {(Rh4) [%eval 88,45] [%emt 00:01:11]} Kg8 {(Kg8) [%eval -60,32] [%emt 00:00:42]}
45.Rh2 {(Rh4) [%eval 88,43] [%emt 00:00:52]} Qc5 {(Kh8) [%eval -60,31] [%emt 00:00:54]}
46.Qb3 {(Qb3) [%eval 88,48] [%emt 00:00:56]} Rd8 {(Kf8) [%eval -60,33] [%emt 00:01:04]}
47.Rha2 {(Rh5) [%eval 88,39] [%emt 00:01:12]} Kh7 {(Rda8) [%eval -58,31] [%emt 00:00:54]}
48.Rh1 {(Rh1) [%eval 88,47] [%emt 00:00:50]} Kg8 {(Kg8) [%eval -54,30] [%emt 00:00:29]}
49.Re2 {(Rh4) [%eval 88,42] [%emt 00:01:02]} Rda8 {(Raa8) [%eval -55,31] [%emt 00:00:37]}
50.Ra2 {(Ra1) [%eval 88,48] [%emt 00:00:49]} Rd8 {(R5a7) [%eval -8,46] [%emt 00:00:38]}
51.Rc2 {(Rh4) [%eval 88,42] [%emt 00:00:50]} Re8 {(Raa8) [%eval -48,33] [%emt 00:01:56]}
52.Rch2 {(Ra1) [%eval 88,42] [%emt 00:00:46]} Rea8 {(Rd8) [%eval -29,34] [%emt 00:00:22]}
53.Ra1 {(fxe5) [%eval 88,47] [%emt 00:01:07]} Rd8 {(Rd8) [%eval -8,46] [%emt 00:00:28]}
54.Rha2 {(Rh5) [%eval 88,48] [%emt 00:02:54]} Kh7 {(Rda8) [%eval -8,42] [%emt 00:00:39]}
55.Rg1 {(Rh1) [%eval 88,46] [%emt 00:01:52]} Kg8 {(Kg8) [%eval -29,28] [%emt 00:01:00]}
56.Rh1 {(Rh1) [%eval 88,46] [%emt 00:01:01]} Rda8 {(Raa8) [%eval -32,31] [%emt 00:00:48]}
57.Kf2 {(Kg2) [%eval 88,42] [%emt 00:00:49]} Kf8 {(Rd8) [%eval -32,29] [%emt 00:00:29]}
58.Raa1 {(Re1) [%eval 88,46] [%emt 00:00:54]} Kf7 {(Kf7) [%eval -32,31] [%emt 00:00:26]}
59.Kf3 {(Kg2) [%eval 88,45] [%emt 00:00:47]} Kg8 {(Kg8) [%eval -32,33] [%emt 00:00:39]}
60.Rhc1 {(Kg2) [%eval 88,42] [%emt 00:00:52]} Kh7 {(Kf7) [%eval -32,33] [%emt 00:00:29]}
61.Rg1 {(Re1) [%eval 88,45] [%emt 00:00:47]} Kg8 {(Kg8) [%eval -32,33] [%emt 00:00:28]}
62.Kg4 {(Kg4) [%eval 88,43] [%emt 00:00:42]} Rc8 {(Kf7) [%eval -31,32] [%emt 00:00:45]}
63.Kf3 {(Rh1) [%eval 88,44] [%emt 00:00:52]} Rca8 {(Re8) [%eval -8,41] [%emt 00:00:24]}
64.Kf2 {(Rh1) [%eval 88,43] [%emt 00:00:46]} Re8 {(Rd8) [%eval -31,33] [%emt 00:00:49]}
65.Kg2 {(Rh1) [%eval 88,45] [%emt 00:01:14]} Rea8 {(Rd8) [%eval -31,33] [%emt 00:00:28]}
66.Kf2 {(Rh1) [%eval 88,43] [%emt 00:00:46]} Re8 {(Rd8) [%eval -8,38] [%emt 00:00:47]}
67.Rh1 {(Rg2) [%eval 88,42] [%emt 00:01:57]} Rd8 {(Raa8) [%eval -31,32] [%emt 00:00:44]}
68.Kg2 {(Rh4) [%eval 88,40] [%emt 00:01:15]} Rda8 {(Re8) [%eval -31,31] [%emt 00:00:43]}
69.Kf2 {(Ra2) [%eval 88,41] [%emt 00:01:22]} Rd8 {(Rd8) [%eval -8,43] [%emt 00:00:13]}
70.Kf1 {(Kg2) [%eval 87,39] [%emt 00:01:21]} Rda8 {(Qc7) [%eval -30,32] [%emt 00:00:46]}
71.Kg2 {(Kg2) [%eval 87,40] [%emt 00:03:40]} Rb8 {(Rd8) [%eval -30,30] [%emt 00:00:24]}
72.Kf3 {(Rh3) [%eval 80,39] [%emt 00:01:30]} Rba8 {(Rba8) [%eval -8,39] [%emt 00:00:15]}
73.Rh5 {(Rh4) [%eval 79,38] [%emt 00:02:47]} Kh8 {(Rd8) [%eval -30,32] [%emt 00:00:49]}
74.Rh2 {(Kg2) [%eval 80,36] [%emt 00:03:43]} Kg8 {(Kg8) [%eval -30,32] [%emt 00:00:18]}
75.Raa2 {(Rh4) [%eval 51,37] [%emt 00:01:14]} Kh8 {(Rb8) [%eval -30,32] [%emt 00:00:25]}
76.Rh3 {(Kg2) [%eval 51,35] [%emt 00:00:38]} Kg8 {(Kh7) [%eval -30,34] [%emt 00:00:31]}
77.Kg2 {(Rh4) [%eval 51,40] [%emt 00:00:20]} Rd8 {(Rb8) [%eval -30,32] [%emt 00:00:43]}
78.Kf1 {(Rh4) [%eval 51,37] [%emt 00:00:32]} Rc8 {(Kf7) [%eval -30,28] [%emt 00:00:30]}
79.Kg2 {(Rh4) [%eval 44,40] [%emt 00:01:08]} Rd8 {(Rc7) [%eval -8,39] [%emt 00:00:21]}
80.Rh4 {(Rh1) [%eval 51,39] [%emt 00:00:39]} Raa8 {(Rc8) [%eval -34,33] [%emt 00:00:38]}
81.Ra1 {(fxe5) [%eval 44,40] [%emt 00:01:02]}
1/2-1/2[/pgn]

[Graham Banks]

GAME 50

The return game developed differently, quickly opening up. With 21. Ng5, Houdini initiated a sequence of exchanges that led into an early rook and minor piece endgame. However, once each side had its passed pawn eliminated, the game was an obvious draw. Stockfish leads by 26.5-23.5 (five wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.12.02"]
[Round "25.2"]
[White "Houdini 6.03 64-bit 8CPU"]
[Black "Stockfish 181117 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "7:41:36 p.m."]
[ECO "A21"]
[Opening "Kramnik-Shirov Variation, English"]
[TimeControl "7200+30"]
[PlyCount "133"]
[Number "50"]
[Termination "GUI adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.c4 {[%eval 0,1] [%emt 00:00:00]} e5 {[%eval 0,1] [%emt 00:00:00]}
2.Nc3 {[%eval 0,1] [%emt 00:00:00]} Bb4 {[%eval 0,1] [%emt 00:00:00]}
3.Nd5 {[%eval 0,1] [%emt 00:00:00]} Bc5 {[%eval 0,1] [%emt 00:00:00]}
4.Nf3 {[%eval 0,1] [%emt 00:00:00]} d6 {[%eval 0,1] [%emt 00:00:00]}
5.b4 {[%eval 0,1] [%emt 00:00:00]} Bb6 {[%eval 0,1] [%emt 00:00:00]}
6.a4 {[%eval 37,29] [%emt 00:06:43]} c6 {(c6) [%eval -38,32] [%emt 00:04:26]}
7.Nxb6 {(Nxb6) [%eval 39,30] [%emt 00:05:29]} axb6 {(axb6) [%eval -32,30] [%emt 00:00:40]}
8.g3 {(Bb2) [%eval 49,27] [%emt 00:03:03]} Be6 {(Ne7) [%eval -31,33] [%emt 00:04:31]}
9.d3 {(d3) [%eval 42,26] [%emt 00:04:35]} Ne7 {(Ne7) [%eval -28,32] [%emt 00:01:49]}
10.Bg2 {(Bg2) [%eval 52,25] [%emt 00:01:27]} O-O {(Na6) [%eval -30,36] [%emt 00:12:48]}
11.Ba3 {(O-O) [%eval 37,28] [%emt 00:04:33]} f6 {(Na6) [%eval -27,34] [%emt 00:02:06]}
12.b5 {(b5) [%eval 53,26] [%emt 00:01:22]} Qc7 {(d5) [%eval -26,32] [%emt 00:01:38]}
13.O-O {(O-O) [%eval 62,27] [%emt 00:06:38]} Nd7 {(Nd7) [%eval -27,32] [%emt 00:05:11]}
14.e3 {(Bb4) [%eval 60,28] [%emt 00:02:50]} Nc5 {(Rfe8) [%eval -27,34] [%emt 00:02:04]}
15.d4 {(d4) [%eval 42,28] [%emt 00:06:25]} exd4 {(exd4) [%eval -17,35] [%emt 00:01:20]}
16.exd4 {(exd4) [%eval 24,30] [%emt 00:04:11]} Nxa4 {(Nxa4) [%eval -9,36] [%emt 00:02:04]}
17.bxc6 {(bxc6) [%eval 20,30] [%emt 00:04:01]} Bxc4 {(Bxc4) [%eval -8,38] [%emt 00:03:07]}
18.cxb7 {(cxb7) [%eval 33,30] [%emt 00:00:47]} Qxb7 {(Qxb7) [%eval -8,37] [%emt 00:01:23]}
19.Re1 {(Nh4) [%eval 29,31] [%emt 00:05:06]} Bd5 {(Bd5) [%eval -8,38] [%emt 00:01:22]}
20.Qd3 {(Qd3) [%eval 19,32] [%emt 00:06:30]} Rfd8 {(Qd7) [%eval -8,40] [%emt 00:04:29]}
21.Ng5 {(Ng5) [%eval 10,32] [%emt 00:04:31]} fxg5 {(fxg5) [%eval -7,41] [%emt 00:00:54]}
22.Rxe7 {(Rxe7) [%eval 13,35] [%emt 00:03:09]} Qxe7 {(Qxe7) [%eval -8,44] [%emt 00:01:58]}
23.Bxd5 {(Bxd5) [%eval 15,34] [%emt 00:04:28]} Kh8 {(Kh8) [%eval -2,42] [%emt 00:02:21]}
24.Bxa8 {(Bxa8) [%eval 20,34] [%emt 00:02:32]} Rxa8 {(Rxa8) [%eval -8,45] [%emt 00:01:39]}
25.Qb5 {(Qb5) [%eval 15,32] [%emt 00:00:40]} h6 {(h6) [%eval -5,42] [%emt 00:02:20]}
26.Qc6 {(Qc6) [%eval 17,34] [%emt 00:02:31]} Qe8 {(Qe8) [%eval 0,47] [%emt 00:02:50]}
27.Qxe8 {(Qxe8) [%eval 12,31] [%emt 00:00:26]} Rxe8 {(Rxe8) [%eval 0,47] [%emt 00:02:58]}
28.Bxd6 {(Bxd6) [%eval 4,37] [%emt 00:04:01]} b5 {(b5) [%eval 0,42] [%emt 00:01:31]}
29.Rc1 {(f4) [%eval 4,36] [%emt 00:03:02]} Nb6 {(Nb6) [%eval 0,51] [%emt 00:12:40]}
30.Rc5 {(Rc7) [%eval 4,35] [%emt 00:00:46]} Nc4 {(Nc4) [%eval 0,53] [%emt 00:03:33]}
31.Bc7 {(Bc7) [%eval 4,37] [%emt 00:02:30]} Re7 {(Re7) [%eval 0,56] [%emt 00:05:03]}
32.d5 {(Kg2) [%eval 4,37] [%emt 00:02:57]} Rd7 {(Kg8) [%eval 0,55] [%emt 00:04:36]}
33.Bb8 {(Bb8) [%eval 0,36] [%emt 00:02:24]} Nb6 {(Nb6) [%eval 0,62] [%emt 00:03:03]}
34.Rxb5 {(Rxb5) [%eval 0,36] [%emt 00:00:43]} Nxd5 {(Nxd5) [%eval 0,66] [%emt 00:03:00]}
35.h3 {(Be5) [%eval 0,36] [%emt 00:01:53]} Kg8 {(Kh7) [%eval 0,57] [%emt 00:01:32]}
36.Be5 {(Kg2) [%eval 0,32] [%emt 00:01:47]} Nf6 {(Nf6) [%eval 0,60] [%emt 00:01:18]}
37.Bc3 {(Kg2) [%eval 0,32] [%emt 00:02:11]} Ne4 {(Kf7) [%eval 0,54] [%emt 00:01:58]}
38.Bb4 {(Bb2) [%eval 0,35] [%emt 00:02:19]} Rd1 {(Kf7) [%eval 0,57] [%emt 00:02:19]}
39.Kg2 {(Kg2) [%eval 0,36] [%emt 00:01:31]} Nf6 {(Rb1) [%eval 0,64] [%emt 00:02:26]}
40.Bc3 {(Rb8) [%eval 0,35] [%emt 00:01:35]} Rd3 {(Kh7) [%eval 0,59] [%emt 00:01:16]}
41.Bb2 {(Rb8) [%eval 0,35] [%emt 00:02:12]} Kf7 {(Kf7) [%eval 0,76] [%emt 00:01:29]}
42.Rb7 {(Bxf6) [%eval 0,34] [%emt 00:01:57]} Kg6 {(Kg6) [%eval 0,84] [%emt 00:02:16]}
43.Be5 {(Bxf6) [%eval 0,36] [%emt 00:01:52]} Rd1 {(Rd8) [%eval 0,70] [%emt 00:01:50]}
44.Rb6 {(Rb6) [%eval 0,35] [%emt 00:01:59]} Rd3 {(Kf5) [%eval 0,73] [%emt 00:02:05]}
45.Rc6 {(g4) [%eval 0,36] [%emt 00:01:44]} Kf5 {(Kf5) [%eval 0,71] [%emt 00:01:52]}
46.Bb2 {(Bxf6) [%eval 0,32] [%emt 00:00:18]} Kg6 {(Rd2) [%eval 0,75] [%emt 00:01:40]}
47.Ra6 {(Be5) [%eval 0,36] [%emt 00:01:46]} Rd7 {(Rd1) [%eval 0,57] [%emt 00:00:38]}
48.Kf3 {(Kf3) [%eval 0,34] [%emt 00:01:10]} Rd3 {(Rd2) [%eval 0,61] [%emt 00:01:33]}
49.Ke2 {(Ke2) [%eval 0,35] [%emt 00:01:21]} Rd7 {(Rd7) [%eval 0,66] [%emt 00:02:25]}
50.Ba3 {(Kf3) [%eval 0,33] [%emt 00:01:19]} Kf5 {(Kf7) [%eval 0,56] [%emt 00:01:26]}
51.Ra5 {(g4) [%eval 0,33] [%emt 00:01:36]} Kg6 {(Kg6) [%eval 0,56] [%emt 00:00:32]}
52.Bb2 {(Ra6) [%eval 0,34] [%emt 00:00:24]} Re7 {(Re7) [%eval 0,60] [%emt 00:00:56]}
53.Kf3 {(Kf3) [%eval 0,36] [%emt 00:01:57]} Kf7 {(Re1) [%eval 0,68] [%emt 00:00:33]}
54.Ba1 {(Bxf6) [%eval 0,33] [%emt 00:01:12]} Rb7 {(Rd7) [%eval 0,71] [%emt 00:01:50]}
55.Kg2 {(Bxf6) [%eval 0,35] [%emt 00:01:17]} Kg6 {(Rd7) [%eval 0,61] [%emt 00:01:23]}
56.Ra6 {(Bd4) [%eval 0,37] [%emt 00:02:05]} Rb3 {(Rd7) [%eval 0,87] [%emt 00:01:12]}
57.g4 {(Bxf6) [%eval 0,36] [%emt 00:01:20]} Kf7 {(Rd3) [%eval 0,73] [%emt 00:02:04]}
58.Bd4 {(Bxf6) [%eval 0,35] [%emt 00:01:27]} Kg6 {(Rb4) [%eval 0,59] [%emt 00:01:11]}
59.Be5 {(Be5) [%eval 0,35] [%emt 00:01:00]} Rd3 {(Rb7) [%eval 0,58] [%emt 00:01:31]}
60.Ba1 {(f4) [%eval 0,36] [%emt 00:01:34]} Rb3 {(Rd2) [%eval 0,69] [%emt 00:01:42]}
61.Bd4 {(Be5) [%eval 0,36] [%emt 00:00:54]} Rd3 {(Rd3) [%eval 0,72] [%emt 00:00:54]}
62.Bb2 {(Be5) [%eval 0,35] [%emt 00:01:18]} Rd1 {(Kf7) [%eval 0,71] [%emt 00:00:49]}
63.Bc3 {(Bxf6) [%eval 0,35] [%emt 00:01:37]} Rb1 {(Rd3) [%eval 0,72] [%emt 00:03:39]}
64.Ra7 {(Bd4) [%eval 0,35] [%emt 00:00:52]} Rb3 {(Rc1) [%eval 0,64] [%emt 00:00:17]}
65.Bd4 {(Be5) [%eval 0,35] [%emt 00:00:51]} Rd3 {(Rb4) [%eval 0,53] [%emt 00:00:24]}
66.Be5 {(Be5) [%eval 0,36] [%emt 00:01:03]} Rd5 {(Rd1) [%eval 0,64] [%emt 00:00:18]}
67.Bc7 {(Bxf6) [%eval 0,33] [%emt 00:00:49]}
1/2-1/2[/pgn]

[Graham Banks]

GAME 51

Houdini looked as though it might want to pawn storm the kingside, but Stockfish remained solid. With counter-pressure down the c-file, Stockfish held the balance. Houdini eventually carried through with its initial plan of thrusting its kingside pawns forward, but there was no real threat now and a drawn rook and pawns ending quickly came about. Stockfish leads by 28.0-25.0 (five wins to two).

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.12.03"]
[Round "26.1"]
[White "Stockfish 181117 64-bit 8CPU"]
[Black "Houdini 6.03 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "12:34:48 a.m."]
[ECO "A01"]
[Opening "Classical Variation, Larsen"]
[TimeControl "7200+30"]
[PlyCount "127"]
[Number "51"]
[Termination "GUI TB adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.b3 {[%eval 0,1] [%emt 00:00:00]} d5 {[%eval 0,1] [%emt 00:00:00]}
2.Nf3 {[%eval 0,1] [%emt 00:00:00]} Bg4 {[%eval 0,1] [%emt 00:00:00]}
3.e3 {[%eval 0,1] [%emt 00:00:00]} e6 {[%eval 0,1] [%emt 00:00:00]}
4.Be2 {[%eval 0,1] [%emt 00:00:00]} Nd7 {[%eval 0,1] [%emt 00:00:00]}
5.Bb2 {[%eval 0,1] [%emt 00:00:00]} Ngf6 {[%eval 0,1] [%emt 00:00:00]}
6.h3 {[%eval 0,1] [%emt 00:00:00]} Bh5 {[%eval 0,1] [%emt 00:00:00]}
7.Ne5 {[%eval 0,1] [%emt 00:00:00]} Bxe2 {[%eval 0,1] [%emt 00:00:00]}
8.Qxe2 {[%eval 0,1] [%emt 00:00:00]} Nxe5 {[%eval 0,1] [%emt 00:00:00]}
9.Bxe5 {[%eval -14,33] [%emt 00:01:29]} Bd6 {(Bd6) [%eval 9,30] [%emt 00:05:06]}
10.Bb2 {(Bb2) [%eval 0,35] [%emt 00:02:40]} c6 {(c6) [%eval 14,30] [%emt 00:03:11]}
11.c4 {(O-O) [%eval -8,37] [%emt 00:14:35]} O-O {(Qe7) [%eval 6,30] [%emt 00:03:13]}
12.O-O {(O-O) [%eval -3,32] [%emt 00:00:50]} Qe7 {(e5) [%eval 11,28] [%emt 00:02:08]}
13.d3 {(d3) [%eval 0,34] [%emt 00:05:56]} e5 {(e5) [%eval 1,28] [%emt 00:00:52]}
14.Rd1 {(Qc2) [%eval 0,38] [%emt 00:01:21]} Rad8 {(Qe6) [%eval 14,28] [%emt 00:06:31]}
15.Nd2 {(Nd2) [%eval 0,36] [%emt 00:03:20]} Nd7 {(Rfe8) [%eval 4,28] [%emt 00:04:10]}
16.Nf3 {(cxd5) [%eval -7,36] [%emt 00:03:02]} f5 {(f5) [%eval 29,25] [%emt 00:01:47]}
17.cxd5 {(Ne1) [%eval -11,32] [%emt 00:01:01]} cxd5 {(cxd5) [%eval 33,28] [%emt 00:06:04]}
18.Rac1 {(Rac1) [%eval -11,36] [%emt 00:06:10]} h6 {(h6) [%eval 34,28] [%emt 00:06:29]}
19.Qd2 {(Rc3) [%eval -15,37] [%emt 00:08:49]} Kh7 {(Kh7) [%eval 48,27] [%emt 00:02:50]}
20.Qc2 {(g3) [%eval -12,31] [%emt 00:00:43]} Kh8 {(Kh8) [%eval 38,28] [%emt 00:09:25]}
21.Qe2 {(Nh2) [%eval -22,35] [%emt 00:06:05]} a6 {(a6) [%eval 40,28] [%emt 00:04:08]}
22.Bc3 {(Rc2) [%eval -12,33] [%emt 00:02:12]} Rf7 {(Rf7) [%eval 37,28] [%emt 00:03:48]}
23.Ba5 {(Ba5) [%eval -9,36] [%emt 00:02:43]} Rdf8 {(Rdf8) [%eval 42,29] [%emt 00:02:17]}
24.Rc2 {(Bc7) [%eval -16,40] [%emt 00:08:05]} e4 {(Kg8) [%eval 36,29] [%emt 00:05:11]}
25.Ne1 {(Ne1) [%eval -8,34] [%emt 00:00:39]} Qe5 {(Qe5) [%eval 28,32] [%emt 00:04:37]}
26.f4 {(f4) [%eval -8,33] [%emt 00:01:32]} exf3 {(exf3) [%eval 24,33] [%emt 00:02:43]}
27.Nxf3 {(Nxf3) [%eval -8,38] [%emt 00:02:26]} Qg3 {(Qe6) [%eval 25,34] [%emt 00:06:56]}
28.Qe1 {(Qe1) [%eval -8,40] [%emt 00:02:16]} Qg6 {(Qg6) [%eval 22,34] [%emt 00:02:39]}
29.Bc7 {(Bc7) [%eval -8,42] [%emt 00:01:38]} Re8 {(Re8) [%eval 24,30] [%emt 00:02:01]}
30.Qf2 {(Qf2) [%eval -8,42] [%emt 00:04:51]} Ne5 {(Ne5) [%eval 17,34] [%emt 00:03:21]}
31.Nxe5 {(Nxe5) [%eval -8,42] [%emt 00:02:13]} Rxe5 {(Bxe5) [%eval 17,34] [%emt 00:02:41]}
32.Rdc1 {(Rdc1) [%eval 0,48] [%emt 00:10:37]} Ree7 {(Kh7) [%eval 15,34] [%emt 00:04:04]}
33.Bxd6 {(Bxd6) [%eval 0,42] [%emt 00:03:15]} Qxd6 {(Qxd6) [%eval 16,34] [%emt 00:03:04]}
34.Qf4 {(Qf4) [%eval 0,39] [%emt 00:01:03]} Qe6 {(Qe6) [%eval 5,34] [%emt 00:03:26]}
35.Re2 {(Re2) [%eval -8,39] [%emt 00:02:31]} Kh7 {(Rf6) [%eval 6,29] [%emt 00:00:20]}
36.Qd4 {(Qd4) [%eval -8,45] [%emt 00:00:50]} Re8 {(Rf6) [%eval 10,29] [%emt 00:01:48]}
37.Rcc2 {(a4) [%eval 0,41] [%emt 00:02:50]} Rfe7 {(g5) [%eval 9,31] [%emt 00:02:17]}
38.Rc5 {(Rc5) [%eval 0,43] [%emt 00:01:54]} Rd7 {(Rd7) [%eval 3,31] [%emt 00:00:38]}
39.b4 {(Rc1) [%eval 0,44] [%emt 00:00:51]} g5 {(g5) [%eval 8,29] [%emt 00:01:47]}
40.Rcc2 {(Rcc2) [%eval 0,44] [%emt 00:01:12]} Kg6 {(Kg6) [%eval -3,30] [%emt 00:01:58]}
41.b5 {(Kf2) [%eval 0,45] [%emt 00:02:25]} a5 {(axb5) [%eval 0,30] [%emt 00:02:09]}
42.Kf2 {(Kf2) [%eval 0,41] [%emt 00:02:02]} Qf6 {(Rde7) [%eval 0,29] [%emt 00:00:17]}
43.a4 {(Qxf6) [%eval 0,39] [%emt 00:00:41]} Re5 {(Qe6) [%eval -1,29] [%emt 00:01:42]}
44.Rc8 {(Kg1) [%eval 0,40] [%emt 00:01:50]} f4 {(Qe6) [%eval -8,31] [%emt 00:01:51]}
45.e4 {(e4) [%eval 0,39] [%emt 00:00:55]} Rf7 {(Qe6) [%eval -8,31] [%emt 00:00:14]}
46.Kg1 {(Kg1) [%eval 0,37] [%emt 00:00:48]} dxe4 {(dxe4) [%eval -8,31] [%emt 00:01:24]}
47.dxe4 {(dxe4) [%eval 0,41] [%emt 00:01:07]} h5 {(Kh7) [%eval -8,30] [%emt 00:00:23]}
48.Rg8 {(Rd2) [%eval 0,38] [%emt 00:01:15]} Kh7 {(Kh7) [%eval 0,32] [%emt 00:01:02]}
49.Rd8 {(Rd8) [%eval 0,41] [%emt 00:00:28]} f3 {(g4) [%eval 0,32] [%emt 00:00:25]}
50.Rf2 {(Rf2) [%eval 0,37] [%emt 00:00:35]} g4 {(g4) [%eval 0,35] [%emt 00:02:50]}
51.hxg4 {(hxg4) [%eval 0,40] [%emt 00:00:42]} hxg4 {(hxg4) [%eval 0,36] [%emt 00:01:06]}
52.Rd7 {(Rd7) [%eval 0,42] [%emt 00:00:55]} Rxd7 {(Rxd7) [%eval 0,36] [%emt 00:00:40]}
53.Qxd7 {(Qxd7) [%eval 0,43] [%emt 00:01:52]} Qg7 {(Qg7) [%eval 0,37] [%emt 00:04:03]}
54.Rd2 {(Rd2) [%eval 0,47] [%emt 00:00:37]} Qxd7 {(Qxd7) [%eval 0,39] [%emt 00:00:13]}
55.Rxd7 {(Rxd7) [%eval 0,63] [%emt 00:00:30]} Kg6 {(Kg6) [%eval 0,46] [%emt 00:01:08]}
56.Rxb7 {(Rxb7) [%eval 0,63] [%emt 00:00:32]} Rxe4 {(Rxe4) [%eval 0,47] [%emt 00:00:14]}
57.gxf3 {(gxf3) [%eval 0,72] [%emt 00:00:31]} gxf3 {(gxf3) [%eval 0,55] [%emt 00:00:58]}
58.Kf2 {(Kf2) [%eval 0,75] [%emt 00:01:01]} Rxa4 {(Rxa4) [%eval 0,54] [%emt 00:01:04]}
59.b6 {(Ra7) [%eval 0,90] [%emt 00:00:30]} Rb4 {(Rb4) [%eval 0,62] [%emt 00:01:00]}
60.Ra7 {(Kxf3) [%eval 0,115] [%emt 00:00:32]} a4 {(Rxb6) [%eval 0,62] [%emt 00:01:55]}
61.b7 {(b7) [%eval 0,100] [%emt 00:00:31]} Rb3 {(Kf6) [%eval 0,71] [%emt 00:01:09]}
62.Ra6 {(Ra6) [%eval 0,112] [%emt 00:00:32]} Kf5 {(Kf5) [%eval 0,78] [%emt 00:00:18]}
63.b8=Q {(Rxa4) [%eval 0,121] [%emt 00:00:32]} Rxb8 {(Rxb8) [%eval 0,99] [%emt 00:00:00]}
64.Rxa4 {(Kxf3) [%eval 0,127] [%emt 00:00:30]}
1/2-1/2[/pgn]

[Graham Banks]

GAME 52

Again, the reverse game developed differently, with castling on opposite sides. Stockfish was able to defuse any attacking threats on the queenside through its control of the d-file and its own seventh rank. It wandered its king over to the kingside and the game was eventually drawn. Stockfish still holds onto a three point lead and only requires one more win to take match victory.

[pgn][Event "Houdini 8CPU v Stockfish 8CPU"]
[Site "ChessGUI2"]
[Date "2017.12.03"]
[Round "26.2"]
[White "Houdini 6.03 64-bit 8CPU"]
[Black "Stockfish 181117 64-bit 8CPU"]
[Result "1/2-1/2"]
[Time "5:05:34 a.m."]
[ECO "A01"]
[Opening "Classical Variation, Larsen"]
[TimeControl "7200+30"]
[PlyCount "125"]
[Number "52"]
[Termination "3-fold rep"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

{ Xeon X5430x2 Octal }
1.b3 {[%eval 0,1] [%emt 00:00:00]} d5 {[%eval 0,1] [%emt 00:00:00]}
2.Nf3 {[%eval 0,1] [%emt 00:00:00]} Bg4 {[%eval 0,1] [%emt 00:00:00]}
3.e3 {[%eval 0,1] [%emt 00:00:00]} e6 {[%eval 0,1] [%emt 00:00:00]}
4.Be2 {[%eval 0,1] [%emt 00:00:00]} Nd7 {[%eval 0,1] [%emt 00:00:00]}
5.Bb2 {[%eval 0,1] [%emt 00:00:00]} Ngf6 {[%eval 0,1] [%emt 00:00:00]}
6.h3 {[%eval 0,1] [%emt 00:00:00]} Bh5 {[%eval 0,1] [%emt 00:00:00]}
7.Ne5 {[%eval 0,1] [%emt 00:00:00]} Bxe2 {[%eval 0,1] [%emt 00:00:00]}
8.Qxe2 {[%eval 0,1] [%emt 00:00:00]} Nxe5 {[%eval 0,1] [%emt 00:00:00]}
9.Bxe5 {[%eval -10,32] [%emt 00:03:59]} Bd6 {(Bd6) [%eval 13,37] [%emt 00:09:36]}
10.Bb2 {(Bb2) [%eval -10,28] [%emt 00:00:58]} Qe7 {(Qe7) [%eval 8,33] [%emt 00:01:05]}
11.d3 {(d3) [%eval -3,31] [%emt 00:02:48]} e5 {(e5) [%eval 11,33] [%emt 00:01:53]}
12.O-O {(Nd2) [%eval -10,32] [%emt 00:03:17]} O-O-O {(O-O) [%eval 22,30] [%emt 00:01:12]}
13.c4 {(c4) [%eval -28,29] [%emt 00:04:59]} dxc4 {(c6) [%eval 27,31] [%emt 00:01:08]}
14.dxc4 {(dxc4) [%eval -8,28] [%emt 00:01:52]} c6 {(g5) [%eval 22,36] [%emt 00:14:47]}
15.Nc3 {(Rd1) [%eval -10,31] [%emt 00:03:02]} Rd7 {(g6) [%eval 28,34] [%emt 00:00:44]}
16.a3 {(a3) [%eval -17,31] [%emt 00:05:05]} Rhd8 {(g6) [%eval 23,39] [%emt 00:05:00]}
17.Rfd1 {(b4) [%eval -25,31] [%emt 00:04:02]} g6 {(g6) [%eval 26,35] [%emt 00:01:39]}
18.b4 {(b4) [%eval -10,28] [%emt 00:01:50]} Bc7 {(Bc7) [%eval 32,34] [%emt 00:01:06]}
19.Rxd7 {(Rxd7) [%eval -16,33] [%emt 00:15:14]} Nxd7 {(Nxd7) [%eval 15,40] [%emt 00:04:18]}
20.e4 {(Rd1) [%eval -9,32] [%emt 00:02:08]} a5 {(Nf8) [%eval 35,33] [%emt 00:00:56]}
21.Qc2 {(c5) [%eval -7,32] [%emt 00:06:04]} Nf8 {(Nf8) [%eval 30,39] [%emt 00:07:26]}
22.Na4 {(c5) [%eval -14,34] [%emt 00:04:32]} Ne6 {(Ne6) [%eval 35,35] [%emt 00:00:42]}
23.c5 {(c5) [%eval -31,32] [%emt 00:20:37]} Nd4 {(Nd4) [%eval 19,38] [%emt 00:03:32]}
24.Bxd4 {(Bxd4) [%eval -7,31] [%emt 00:01:13]} Rxd4 {(exd4) [%eval 23,38] [%emt 00:01:32]}
25.Rb1 {(Rb1) [%eval -12,33] [%emt 00:04:06]} Qh4 {(axb4) [%eval 27,38] [%emt 00:01:13]}
26.Nc3 {(Nc3) [%eval -6,33] [%emt 00:01:28]} Qg5 {(Qg5) [%eval 21,41] [%emt 00:02:10]}
27.Qb3 {(bxa5) [%eval -6,32] [%emt 00:00:47]} Qe7 {(Qe7) [%eval 25,37] [%emt 00:02:11]}
28.Qc2 {(bxa5) [%eval -6,34] [%emt 00:02:57]} Qd7 {(Rc4) [%eval 0,50] [%emt 00:11:44]}
29.bxa5 {(bxa5) [%eval -6,36] [%emt 00:02:15]} Bxa5 {(Bxa5) [%eval 0,52] [%emt 00:04:33]}
30.Nd1 {(Nd1) [%eval -6,36] [%emt 00:00:28]} Qe6 {(Rd3) [%eval 0,50] [%emt 00:07:37]}
31.Ne3 {(Ne3) [%eval -6,38] [%emt 00:02:12]} Qe7 {(h5) [%eval 0,50] [%emt 00:03:33]}
32.Qb3 {(h4) [%eval -6,37] [%emt 00:02:13]} Rd7 {(Rd7) [%eval 0,54] [%emt 00:03:35]}
33.Qc2 {(Qc2) [%eval -6,37] [%emt 00:01:16]} Rd4 {(h5) [%eval 0,55] [%emt 00:06:32]}
34.Nf1 {(h4) [%eval -6,39] [%emt 00:02:20]} h5 {(h5) [%eval 0,40] [%emt 00:01:04]}
35.Kh1 {(Nh2) [%eval -6,39] [%emt 00:00:33]} Qe6 {(Kd8) [%eval 0,42] [%emt 00:00:55]}
36.Ne3 {(Ne3) [%eval -6,40] [%emt 00:02:03]} Qe7 {(Qe7) [%eval 0,47] [%emt 00:01:24]}
37.Nf1 {(Nf1) [%eval -6,39] [%emt 00:00:18]} Kb8 {(Kd8) [%eval 0,48] [%emt 00:02:33]}
38.Kh2 {(Kg1) [%eval -6,39] [%emt 00:02:50]} Rd7 {(Kc7) [%eval 0,42] [%emt 00:00:53]}
39.Kg1 {(Kg1) [%eval -6,38] [%emt 00:01:46]} Kc8 {(Kc8) [%eval 0,48] [%emt 00:00:52]}
40.Qc4 {(Nh2) [%eval -6,38] [%emt 00:00:20]} Kd8 {(Rd4) [%eval 0,47] [%emt 00:01:46]}
41.Nh2 {(Nh2) [%eval -6,39] [%emt 00:02:40]} Rd4 {(Rd4) [%eval 0,47] [%emt 00:00:51]}
42.Qc2 {(Qc2) [%eval -6,37] [%emt 00:00:43]} Rd2 {(Rd2) [%eval 0,49] [%emt 00:02:49]}
43.Qc4 {(Qb3) [%eval -6,40] [%emt 00:01:31]} Ke8 {(Rd4) [%eval 0,50] [%emt 00:00:48]}
44.Nf3 {(Nf3) [%eval -6,39] [%emt 00:01:30]} Rd8 {(Rd8) [%eval 0,49] [%emt 00:00:48]}
45.Qb3 {(Qc2) [%eval -6,36] [%emt 00:00:17]} Rd7 {(Rd7) [%eval 0,49] [%emt 00:01:36]}
46.Qc4 {(Qc2) [%eval -6,40] [%emt 00:01:48]} Kf8 {(Kf8) [%eval 0,47] [%emt 00:00:49]}
47.g3 {(g3) [%eval -6,39] [%emt 00:00:27]} Kg7 {(Kg7) [%eval 0,51] [%emt 00:01:12]}
48.Kh2 {(Kg2) [%eval -6,41] [%emt 00:02:01]} Bd8 {(f6) [%eval 0,44] [%emt 00:00:40]}
49.Kg2 {(Kg2) [%eval -6,40] [%emt 00:02:27]} Ba5 {(Ba5) [%eval 0,54] [%emt 00:01:50]}
50.Kh2 {(h4) [%eval -6,42] [%emt 00:01:37]} Bd8 {(f6) [%eval 0,55] [%emt 00:02:22]}
51.Kg2 {(Kg2) [%eval -6,42] [%emt 00:02:44]} f6 {(Ba5) [%eval 0,57] [%emt 00:01:55]}
52.g4 {(Qc2) [%eval -6,35] [%emt 00:01:19]} hxg4 {(hxg4) [%eval 0,46] [%emt 00:02:50]}
53.hxg4 {(hxg4) [%eval -6,35] [%emt 00:00:21]} Qf7 {(Qf7) [%eval 0,48] [%emt 00:01:18]}
54.Qc2 {(Qc2) [%eval -6,36] [%emt 00:01:07]} Qe6 {(Qg8) [%eval 0,41] [%emt 00:00:36]}
55.Kg3 {(Kg3) [%eval -6,37] [%emt 00:01:45]} Kf8 {(Be7) [%eval 0,44] [%emt 00:00:30]}
56.Rh1 {(Rh1) [%eval 1,31] [%emt 00:02:31]} Kg7 {(Qg8) [%eval 0,44] [%emt 00:01:54]}
57.Rh3 {(Qc1) [%eval -6,33] [%emt 00:01:09]} Qf7 {(Qf7) [%eval 0,47] [%emt 00:02:11]}
58.Kg2 {(Rh1) [%eval -6,35] [%emt 00:00:56]} Qe6 {(Qe6) [%eval 0,50] [%emt 00:01:37]}
59.Kg3 {(Kg3) [%eval -6,36] [%emt 00:00:12]} Qf7 {(Qf7) [%eval 0,50] [%emt 00:01:43]}
60.Rh1 {(Rh1) [%eval -6,36] [%emt 00:00:57]} Qe6 {(Be7) [%eval 0,49] [%emt 00:00:27]}
61.Rb1 {(Qc1) [%eval -6,37] [%emt 00:00:46]} Rf7 {(Be7) [%eval 0,40] [%emt 00:00:45]}
62.Qd2 {(Rh1) [%eval -6,34] [%emt 00:01:08]} Rd7 {(Rd7) [%eval 0,47] [%emt 00:00:20]}
63.Qc2 {(Qc2) [%eval -6,38] [%emt 00:00:18]}
1/2-1/2[/pgn]