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Twentieth pairing: Fire vs Stockfish

The showdown between the two highest rated engines turns to Stockfish's advantage.

In the first game, the Benko opening transposed to an English Symmetrical played without flaws by both engines until a threefold repetition was reached.

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.23"]
[Round "5.7"]
[White "Fire 4 x64"]
[Black "Stockfish 180416 64 POPCNT"]
[Result "1/2-1/2"]
[WhiteElo "3207"]
[BlackElo "3340"]
[ECO "A37m"]
[Time "22:16:50"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "79"]
[Number "39"]
[Termination "3-fold rep"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

1.g3 c5 2.Bg2 Nc6 3.c4 g6 4.Nf3 Bg7 5.O-O e6 6.e3 Nge7 7.Nc3 O-O 8.Re1 d5 9.cxd5 exd5 10.d4 b6 11.b3 Re8 12.Ba3 Bg4 13.h3 cxd4 14.exd4 Bxf3 15.Bxf3 Nf5 16.Bxd5 Ncxd4 17.Rxe8+ Qxe8 18.Qd3 Rc8 19.Rc1 a5 20.Kg2 Rd8 21.Qe4 Qd7 22.Na4 Qa7 23.Rd1 Qb8 24.Bc1 b5 25.Nc3 Qc8 26.Bg5 Rf8 27.g4 Qxc3 28.gxf5 Nxf5 29.Rc1 Qb2 30.Rc2 Qa1 31.Rc7 Be5 32.Rxf7 Rxf7 33.Bxf7+ Kxf7 34.Qd5+ Kf8 35.Qd8+ Kg7 36.Qd7+ Kg8 37.Qe8+ Kg7 38.Qd7+ Kh8 39.Qe8+ Kg7 40.Qd7+ 1/2-1/2 [/pgn]

In the return game, Fire deviated immediately with 3...e5. SF found all the right moves and progressively suffocated its opponent.

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.23"]
[Round "5.8"]
[White "Stockfish 180416 64 POPCNT"]
[Black "Fire 4 x64"]
[Result "1-0"]
[WhiteElo "3340"]
[BlackElo "3207"]
[ECO "A00t"]
[Time "23:26:49"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "120"]
[Number "40"]
[Termination "GUI adjudication"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

1.g3 c5 2.Bg2 Nc6 3.c4 e5 4.Nc3 d6 5.d3 Bd7 6.e3 Nf6 7.Nge2 Be7 8.O-O O-O 9.b3 Qc8 10.Bb2 Bh3 11.f4 Qe6 12.Qd2 Bxg2 13.Kxg2 h6 14.f5 Qd7 15.Nd5 Nxd5 16.cxd5 Nb4 17.Nc3 Kh7 18.e4 Na6 19.Nd1 Bg5 20.Qe2 Nc7 21.h4 Be7 22.Ne3 Rab8 23.Bc1 Ne8 24.Bd2 b6 25.a4 Rc8 26.Nc4 Qd8 27.Rh1 Kg8 28.Rab1 Nc7 29.Qg4 Kh7 30.Qh3 Qd7 31.g4 Rg8 32.g5 Kh8 33.Rhg1 h5 34.Bc3 g6 35.Rgf1 gxf5 36.Rxf5 Rcf8 37.Qf3 Rg7 38.Qxh5+ Kg8 39.Ne3 Rh7 40.Qf3 Kh8 41.Rf1 Ne8 42.Qg3 Rg7 43.Ng4 f6 44.Bd2 b5 45.axb5 Rg6 46.h5 Rgg8 47.g6 Qxb5 48.Nh6 Qxb3 49.Qe3 Rg7 50.R5f3 Qb7 51.Nf5 Bd8 52.Rg3 Rfg8 53.Rff3 Rh7 54.gxh7 Rg5 55.Qf2 Rxg3+ 56.Rxg3 Qxh7 57.Rg6 Ba5 58.Rh6 Ng7 59.Rxh7+ Kxh7 60.h6 Ne6 1-0[/pgn]

Rankings after 40 games (16 games left):

1: Stockfish 180416 64 POPCNT 7.5
2: Fire 4 x64 6.5
3: Nirvanachess 2.2 6.0
4: Andscacs 0.86 5.5
5: Critter 1.6a 64-bit 5.5
6: Gull 3 x64 5.0
7: Protector 1.9.0 2.5
8: BlackMamba 2.0 x64 1.5

Twenty-first pairing: BlackMamba vs Protector

After 6 draws and 5 losses, Protector finally gets its first win in the duel of tailenders. The other game was drawn.

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.24"]
[Round "6.1"]
[White "BlackMamba 2.0 x64"]
[Black "Protector 1.9.0"]
[Result "1/2-1/2"]
[WhiteElo "3137"]
[BlackElo "3153"]
[ECO "A07"]
[Time "01:45:17"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "147"]
[Number "41"]
[Termination "GUI adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

1.Nf3 Nf6 2.g3 e6 3.Bg2 d5 4.O-O Bd6 5.d4 O-O 6.c4 h6 7.Qc2 Nc6 8.c5 Be7 9.a3 Ne4 10.b4 a6 11.e3 Bd7 12.Nc3 f5 13.Ne1 Nxc3 14.Qxc3 Qe8 15.a4 b5 16.axb5 axb5 17.Rxa8 Qxa8 18.Nd3 Qb7 19.Bd2 Ra8 20.Ra1 Bf6 21.Bf3 Ra4 22.Bd1 Ra6 23.Rxa6 Qxa6 24.Qb2 Be8 25.Nf4 g5 26.Nd3 Qa8 27.Kg2 Bg6 28.Be2 Qa4 29.Bc3 Kg7 30.f3 Kh7 31.Nf2 Bg7 32.Bd1 Qa6 33.Kg1 Bh5 34.Nd3 Bf6 35.Kg2 Bg6 36.f4 g4 37.Nf2 Bg7 38.Qb3 Nb8 39.Nd3 Nd7 40.Qb1 Nf6 41.Qb2 Be8 42.Nf2 Bc6 43.Bc2 Kg8 44.Be1 Ne4 45.Nd1 Kf7 46.Nc3 Ke7 47.Ne2 Bf6 48.Nc1 Kd7 49.Nb3 Kc8 50.Nd2 Kd7 51.h3 h5 52.Nb1 Ke7 53.Bd1 Bg7 54.h4 Ke8 55.Bb3 Kf7 56.Nc3 Qa7 57.Ba2 Qa6 58.Kh2 Nf6 59.Bb1 Ne4 60.Kg2 Bd7 61.Bc2 Bf6 62.Kg1 Bc8 63.Bb1 Bb7 64.Bd3 Bc6 65.Kg2 Bd7 66.Kh1 Ke7 67.Kh2 Kf7 68.Bb1 Bc6 69.Kg2 Bg7 70.Bc2 Bh8 71.Kg1 Ke7 72.Bb3 Qa8 73.Kg2 Bf6 74.Bc2 1/2-1/2 [/pgn]

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.24"]
[Round "6.2"]
[White "Protector 1.9.0"]
[Black "BlackMamba 2.0 x64"]
[Result "1-0"]
[WhiteElo "3153"]
[BlackElo "3137"]
[ECO "E04l"]
[Time "04:12:07"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "119"]
[Number "42"]
[Termination "GUI TB Mate in 20"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

1.Nf3 Nf6 2.g3 e6 3.c4 d5 4.d4 dxc4 5.Bg2 c5 6.O-O Nc6 7.dxc5 Qxd1 8.Rxd1 Bxc5 9.Nbd2 c3 10.bxc3 O-O 11.Ne1 Rd8 12.Nd3 Be7 13.Ne4 Nxe4 14.Bxe4 f5 15.Bg2 Bd7 16.Be3 Rac8 17.c4 Be8 18.Rab1 b6 19.c5 bxc5 20.Nxc5 Rxd1+ 21.Rxd1 Kf7 22.Nd3 a5 23.Rc1 Bf6 24.Bb6 a4 25.e4 Ne7 26.Rxc8 Nxc8 27.Bc5 Bb5 28.Bf1 Ke8 29.e5 Be7 30.Bxe7 Bxd3 31.Bxd3 Kxe7 32.a3 g5 33.Kf1 Nb6 34.Ke2 Nd7 35.f4 gxf4 36.gxf4 Nb6 37.Kf3 Kd8 38.Bb5 h6 39.Ke3 Nd5+ 40.Kd4 Nxf4 41.Bxa4 Kc7 42.Bb3 Kd7 43.a4 Kc6 44.Ba2 Kd7 45.a5 Kc6 46.Bc4 Kc7 47.Ke3 Ng6 48.Bxe6 Nxe5 49.Kf4 Nc6 50.a6 Ne7 51.Bc4 Kb6 52.Ke5 h5 53.Kf6 Nc8 54.Be2 Nd6 55.Ke6 Ne8 56.Kxf5 Nd6+ 57.Ke5 Nf7+ 58.Kf6 Nd6 59.a7 Kxa7 60.Bxh5 1-0
[/pgn]

Twenty-second pairing: Andscacs vs Nirvanachess

The showdown was unfortunately marked by a loss on time in the return game, NC taking too much time playing move 80 (last one to reach the TC) in a drawn ending. The first game saw a long draw in Mason variation of the Queen's pawn game.

[pgn]
[Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.24"]
[Round "6.3"]
[White "Nirvanachess 2.2"]
[Black "Andscacs 0.86"]
[Result "1/2-1/2"]
[WhiteElo "3157"]
[BlackElo "3150"]
[ECO "D00c"]
[Time "06:42:36"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "201"]
[Number "43"]
[Termination "3-fold rep"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

1.d4 d5 2.Bf4 g6 3.e3 Bg7 4.Nc3 Nf6 5.Nf3 Nh5 6.Bg5 c6 7.Be2 O-O 8.O-O Nd7 9.e4 dxe4 10.Nxe4 Nhf6 11.Nxf6+ exf6 12.Be3 Re8 13.Re1 Nb6 14.c4 Bg4 15.Qd3 f5 16.Rac1 Nd7 17.Qd2 Nf6 18.Rcd1 Ne4 19.Qc1 Rc8 20.a3 Rc7 21.Ne5 Bxe2 22.Rxe2 Qc8 23.c5 Rce7 24.f3 Nf6 25.Bg5 Qd8 26.Red2 h6 27.Bh4 Re6 28.Nc4 Bf8 29.Ne5 g5 30.Bf2 Nd5 31.Qc2 f6 32.Nd3 f4 33.Rc1 Bg7 34.Qb3 Qe7 35.Nb4 Rd8 36.Nxd5 Rxd5 37.Qd1 f5 38.b4 Bf6 39.Rb1 b5 40.a4 a6 41.Ra1 Qd7 42.axb5 axb5 43.Ra3 Re7 44.Rdd3 Qe6 45.Ra6 Kh7 46.Qd2 Rg7 47.Raa3 Rgd7 48.h3 Qe8 49.Ra1 Re7 50.Ra2 Bg7 51.Kh1 Kg8 52.Kg1 Qc8 53.Ra5 Kh7 54.Ra2 Bf6 55.Ra5 Kg6 56.Ra2 Qe8 57.Kh1 Qb8 58.Ra6 Qc8 59.Ra5 Bg7 60.Ra2 Qd7 61.Kh2 Bf6 62.Kg1 Qc8 63.Ra5 Qc7 64.Ra8 Qb7 65.Ra5 Kf7 66.Rda3 Qd7 67.Rd3 Qe8 68.Ra2 Kf8 69.Qb2 Bg7 70.Ra6 Re2 71.Qa3 Kf7 72.Rd1 Kg6 73.Qd3 Kh5 74.Qb3 Rxf2 75.Kxf2 Bxd4+ 76.Kf1 Bc3 77.Kg1 Rxd1+ 78.Qxd1 Bxb4 79.Qd4 Be1 80.Ra1 b4 81.Rb1 Qe2 82.Qf6 Bf2+ 83.Kh2 Qc2 84.Rf1 Bg3+ 85.Kh1 Qxc5 86.h4 Qc4 87.Rb1 Qd3 88.Rc1 Qd2 89.Rb1 Qd5 90.hxg5 hxg5 91.Qh8+ Kg6 92.Qe8+ Kg7 93.Qe7+ Kh6 94.Qxb4 g4 95.fxg4 fxg4 96.Qf8+ Kg6 97.Qe8+ Kg5 98.Qe7+ Kg6 99.Qe8+ Kg5 100.Qe7+ Kg6 101.Qe8+ 1/2-1/2 [/pgn]

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.24"]
[Round "6.4"]
[White "Andscacs 0.86"]
[Black "Nirvanachess 2.2"]
[Result "1-0"]
[WhiteElo "3150"]
[BlackElo "3157"]
[ECO "D00r"]
[Time "09:50:09"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "159"]
[Number "44"]
[Termination "time"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

1.d4 d5 2.Bf4 g6 3.e3 Bg7 4.Nc3 Nf6 5.Nf3 O-O 6.Be2 c5 7.dxc5 Nbd7 8.Nxd5 Nxd5 9.Qxd5 Bxb2 10.O-O Bxa1 11.Rxa1 Qa5 12.Bh6 Qxc5 13.Qb3 Re8 14.Ng5 Qf5 15.Rd1 Qf6 16.Qa4 a6 17.Rd4 Ra7 18.h3 b5 19.Bxb5 axb5 20.Qxa7 Qc6 21.Qa5 Bb7 22.Nf3 Ne5 23.e4 Nxf3+ 24.gxf3 f6 25.Rd5 Bc8 26.Qxb5 Qxb5 27.Rxb5 Bxh3 28.Rb7 Kf7 29.Bd2 Rd8 30.Bb4 Rd7 31.Rb6 Ra7 32.a3 g5 33.c4 Rc7 34.Ra6 Bd7 35.c5 Bb5 36.Ra8 Bc6 37.Rh8 Kg6 38.Rb8 Kf7 39.Rb6 Bd7 40.Kg2 h5 41.Ra6 Bb5 42.Ra8 Bc6 43.Rb8 h4 44.Rh8 Ke6 45.Rf8 Ra7 46.Rb8 Rb7 47.Rxb7 Bxb7 48.a4 Kd7 49.Kh3 Kc6 50.f4 Bc8+ 51.f5 Ba6 52.Kg4 Be2+ 53.f3 h3 54.Kxh3 Bxf3 55.e5 fxe5 56.Kg3 Bd1 57.a5 Bc2 58.Kg4 Kb5 59.c6 Kxc6 60.Bxe7 Kb5 61.f6 Bb3 62.Bb4 e4 63.Bc3 Bf7 64.Be1 Ka6 65.Kxg5 Be8 66.Kf4 Bg6 67.Bc3 Kb7 68.Bd4 Ka6 69.Kg5 Be8 70.Bc3 Bf7 71.Kf4 Bd5 72.Ke5 Ba2 73.Kxe4 Bb3 74.Kf5 Bc4 75.Be1 Bb3 76.Kg6 Bd5 77.Kg7 Bb3 78.Bc3 Kb5 79.Bd2 Ba2 80.Kf8 1-0 [/pgn] (Black loses on time.)

Twenty-third pairing: Critter Vs Stockfish

Two draws in the English Symmetrical.

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.24"]
[Round "6.5"]
[White "Critter 1.6a 64-bit"]
[Black "Stockfish 180416 64 POPCNT"]
[Result "1/2-1/2"]
[WhiteElo "3171"]
[BlackElo "3340"]
[ECO "A37g"]
[Time "12:25:10"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "123"]
[Number "45"]
[Termination "GUI adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

1.c4 c5 2.g3 g6 3.Nf3 Nc6 4.Nc3 Bg7 5.Bg2 d6 6.O-O Rb8 7.Rb1 Nf6 8.a3 O-O 9.b4 Ne8 10.Nd5 e6 11.Ne3 cxb4 12.axb4 b5 13.cxb5 Rxb5 14.Qa4 Nc7 15.Nc4 a6 16.d3 Qd7 17.Bd2 Rb8 18.Rbc1 Nb5 19.e4 Nbd4 20.Nxd4 Nxd4 21.Qd1 Qe7 22.h4 Rd8 23.Re1 Bd7 24.Bf4 Bb5 25.Rb1 Qf8 26.Qd2 Rbc8 27.Bg5 Re8 28.Qa2 Rc6 29.Kh2 Rec8 30.Rbc1 h6 31.Be3 R6c7 32.Red1 Qd8 33.f4 d5 34.e5 dxc4 35.dxc4 Rxc4 36.Rxd4 Qxd4 37.Bxd4 Rxc1 38.Bc5 h5 39.Qd2 Ra1 40.Bb7 Re8 41.Bd6 Ra3 42.Qb2 Rd3 43.Qc2 Bf8 44.Be4 Re3 45.Bg2 Bxd6 46.exd6 Re2 47.Qc7 Rd2 48.Kg1 Rd4 49.Bb7 Rc4 50.Qa5 Rf8 51.Kf2 Rb8 52.Bxa6 Bxa6 53.Qxa6 Rcxb4 54.d7 Rb2+ 55.Ke1 Rd8 56.Qc6 Rbb8 57.Kf2 Kg7 58.Kg2 Rb2+ 59.Kh3 Rb3 60.Qc7 Rbb8 61.Qe5+ Kg8 62.Qc7 1/2-1/2 [/pgn]

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.24"]
[Round "6.6"]
[White "Stockfish 180416 64 POPCNT"]
[Black "Critter 1.6a 64-bit"]
[Result "1/2-1/2"]
[WhiteElo "3340"]
[BlackElo "3171"]
[ECO "A38e"]
[Time "14:27:34"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "159"]
[Number "46"]
[Termination "GUI TB adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

1.c4 c5 2.g3 g6 3.Nc3 Nc6 4.Bg2 Bg7 5.Nf3 d6 6.O-O Nf6 7.d4 cxd4 8.Nxd4 Bd7 9.Nxc6 bxc6 10.Bf4 O-O 11.Qd2 Re8 12.b3 Qa5 13.Rac1 Rac8 14.h3 Bf5 15.e4 Be6 16.Be3 Rcd8 17.f4 Bc8 18.Rc2 Nd7 19.g4 Bb7 20.Rd1 Qc7 21.Qf2 c5 22.g5 Bc6 23.Nd5 Qb7 24.h4 a5 25.Rcc1 a4 26.bxa4 Bxd5 27.Rxd5 Qb4 28.Qc2 Nb6 29.Rd3 Qxa4 30.Qxa4 Nxa4 31.Rc2 Ra8 32.e5 Ra6 33.Be4 dxe5 34.f5 gxf5 35.Bxf5 e4 36.Bxe4 Re6 37.Bd5 Rxe3 38.Rxe3 Bd4 39.Kf2 Rc8 40.Kf3 Bxe3 41.Kxe3 Nb6 42.h5 Kg7 43.Bb7 Rc7 44.Ba6 Ra7 45.Bb5 Ra3+ 46.Kf4 h6 47.Re2 Nc8 48.g6 fxg6 49.hxg6 Kxg6 50.Ke5 Nb6 51.Ke6 Kg5 52.Re5+ Kg4 53.Kxe7 h5 54.Re6 Ra7+ 55.Kd6 Rxa2 56.Kxc5 Nxc4 57.Bxc4 Ra5+ 58.Kd4 h4 59.Ke3 Ra3+ 60.Ke2 Kg3 61.Rg6+ Kh2 62.Kf2 Rc3 63.Be6 h3 64.Rg5 Rc1 65.Re5 Rc3 66.Rd5 Rb3 67.Bf5 Rg3 68.Rc5 Rb3 69.Rc2 Ra3 70.Rd2 Rg3 71.Be4 Rg7 72.Kf3+ Rg2 73.Rd8 Rg7 74.Bf5 Rg1 75.Rd2+ Rg2 76.Rd5 Rg1 77.Kf4 Rf1+ 78.Kg4 Kg2 79.Be4+ Kf2 80.Kxh3 1/2-1/2[/pgn]

Twenty-fourth pairing: Gull vs Fire

The first game was a logical draw in Queen Pawn's game played accurately by both engines.

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.24"]
[Round "6.7"]
[White "Gull 3 x64"]
[Black "Fire 4 x64"]
[Result "1/2-1/2"]
[WhiteElo "3200"]
[BlackElo "3207"]
[ECO "D00c"]
[Time "17:00:12"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "122"]
[Number "47"]
[Termination "GUI adjudication"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

1.d4 d5 2.Bf4 Nf6 3.e3 c5 4.Nc3 cxd4 5.exd4 a6 6.Nf3 Nc6 7.Be2 Bg4 8.h3 Bh5 9.g4 Bg6 10.Ne5 Qb6 11.Nxc6 Qxc6 12.h4 h6 13.Qd2 e6 14.h5 Bh7 15.a3 b5 16.f3 Nd7 17.Na2 Be7 18.Nb4 Qb7 19.Kf2 Rc8 20.c3 Nb6 21.b3 Nd7 22.a4 a5 23.Nd3 bxa4 24.Rxa4 Qxb3 25.Rxa5 Bd8 26.Ra7 Bb6 27.Nc1 Qxc3 28.Qxc3 Rxc3 29.Ra8+ Bd8 30.Bd2 Rc2 31.Ba5 Ke7 32.Bb4+ Kf6 33.Ba5 Ke7 34.Bb4+ Ke8 35.Ke3 f5 36.Nd3 e5 37.Nxe5 f4+ 38.Kxf4 Nxe5 39.dxe5 Rxe2 40.Rc1 Bc2 41.e6 d4 42.e7 Kd7 43.exd8=Q+ Rxd8 44.Rxd8+ Kxd8 45.Ra1 d3 46.Ra6 Kc7 47.Rg6 d2 48.Rxg7+ Kc6 49.Bxd2 Rxd2 50.Rg8 Kd7 51.Rh8 Rd6 52.g5 hxg5+ 53.Kxg5 Rd5+ 54.Kf4 Ke7 55.Rh6 Bf5 56.Ke3 Be6 57.Rh8 Kf6 58.Rh6+ Kf5 59.Rh8 Re5+ 60.Kf2 Rb5 61.Kg3 Rb6 1/2-1/2 [/pgn]

In the return game, Fire capitalizes on several inaccuracies by Gull to score a nice win with White.

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.24"]
[Round "6.8"]
[White "Fire 4 x64"]
[Black "Gull 3 x64"]
[Result "1-0"]
[WhiteElo "3207"]
[BlackElo "3200"]
[ECO "D02p"]
[Time "19:08:14"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "184"]
[Number "48"]
[Termination "GUI adjudication"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

1.d4 d5 2.Bf4 Nf6 3.e3 e6 4.Nf3 c5 5.Be2 cxd4 6.exd4 Qb6 7.Qc1 Bd6 8.b3 O-O 9.O-O Bxf4 10.Qxf4 Nc6 11.Nbd2 Bd7 12.a3 Rac8 13.Bd3 a6 14.h3 Qc7 15.Qe3 Ne7 16.Rfe1 Nf5 17.Qe5 Qc3 18.Ra2 Rfd8 19.g4 Ne7 20.Re3 Qc7 21.c3 Bb5 22.Bb1 Be8 23.Qh2 h6 24.Ne5 Nd7 25.f4 Nf8 26.f5 f6 27.Nef3 Qb6 28.Qf2 Bd7 29.b4 Qd6 30.Qh2 Qxh2+ 31.Kxh2 Re8 32.Nh4 Rc7 33.Nb3 exf5 34.gxf5 Nc8 35.Rae2 Rd8 36.Nc5 Bb5 37.Bd3 Bxd3 38.Rxd3 Nd6 39.a4 Kf7 40.a5 Rdc8 41.Rg3 Rd8 42.Rf3 Rc6 43.Ng2 Nd7 44.h4 Nxc5 45.dxc5 Nc8 46.Rd3 Ne7 47.Ne3 h5 48.Kg3 Re8 49.Red2 Rcc8 50.Kf2 Rb8 51.Rd1 Kg8 52.Kg2 Rbc8 53.Kg3 Kf7 54.Kf2 Rb8 55.Rd4 Rec8 56.Kf3 Rg8 57.R4d2 Rge8 58.Rd3 Rg8 59.Rd4 Rge8 60.R4d2 Rg8 61.Rg1 Rbd8 62.Kf2 Rge8 63.Rgd1 Rb8 64.Rc1 Rbd8 65.Rd3 Nc6 66.Rcd1 d4 67.cxd4 Re4 68.d5 Ne7 69.Rb3 Re5 70.d6 Nxf5 71.Nxf5 Rxf5+ 72.Rf3 Rxf3+ 73.Kxf3 g5 74.Kg3 Ke6 75.Re1+ Kd5 76.Re7 g4 77.Rxb7 Ke4 78.Rh7 f5 79.Rxh5 Rg8 80.Rg5 f4+ 81.Kg2 Rd8 82.Rxg4 Kd5 83.Kf3 Kc6 84.h5 Rh8 85.Rg7 Kd5 86.d7 Rb8 87.Rg6 Ke5 88.c6 Rxb4 89.Rg5+ Kd4 90.d8=Q+ Kc3 91.c7 Rb3 92.Qd5 Ra3 1-0
[/pgn]

Twenty-fifth pairing: BlackMamba vs Andscacs

At last, BlackMamba got its first win in this tournament. Unfortunately, it also lost the return game.

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.24"]
[Round "7.1"]
[White "BlackMamba 2.0 x64"]
[Black "Andscacs 0.86"]
[Result "1-0"]
[WhiteElo "3137"]
[BlackElo "3150"]
[ECO "A25"]
[Time "22:36:02"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "151"]
[Number "49"]
[Termination "GUI adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

1.c4 e5 2.g3 Nc6 3.Nc3 Nf6 4.Bg2 Bc5 5.e3 O-O 6.Nge2 Bb6 7.O-O a6 8.Nd5 Nxd5 9.cxd5 Ne7 10.d4 d6 11.Bd2 f6 12.a4 Bg4 13.a5 Ba7 14.Re1 Qd7 15.Qa4 Qf5 16.Qc4 Rfc8 17.dxe5 fxe5 18.Rf1 Qh5 19.Nc3 Bf3 20.Rae1 Kh8 21.Bxf3 Qxf3 22.Rc1 Rab8 23.b4 Kg8 24.b5 axb5 25.Nxb5 Bc5 26.Bb4 Bxb4 27.Qxb4 Nxd5 28.Qc4 Kf8 29.Rfe1 Nf6 30.Nxc7 Qf5 31.e4 Qd7 32.Rc3 g5 33.Rd1 Kg7 34.Rdc1 Kh8 35.Qd3 g4 36.R3c2 h6 37.Qe3 Kh7 38.Rc4 Kg7 39.Qb6 Kg8 40.R1c2 h5 41.Qb3 Kh8 42.Qe3 Qh7 43.Nb5 Rd8 44.Rd2 Ne8 45.Qg5 Qf7 46.Nxd6 Nxd6 47.Qh6+ Kg8 48.Rxd6 Rxd6 49.Qxd6 Rf8 50.Rc2 Qf6 51.Qxf6 Rxf6 52.Rc8+ Kf7 53.Rc7+ Ke6 54.Rxb7 Rf3 55.Rh7 Kd6 56.Rxh5 Ra3 57.Rg5 Rxa5 58.Rxg4 Kc5 59.h4 Ra7 60.Kg2 Rh7 61.Rg5 Kd4 62.f3 Rf7 63.h5 Rf8 64.h6 Rh8 65.Rg6 Ke3 66.g4 Rh7 67.Rf6 Ke2 68.g5 Kd2 69.Kf2 Kd3 70.Rd6+ Kc4 71.Rd5 Rh8 72.Rxe5 Kd4 73.Rd5+ Kc3 74.f4 Kb2 75.f5 Rc8 76.f6 1-0
[/pgn]

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.25"]
[Round "7.2"]
[White "Andscacs 0.86"]
[Black "BlackMamba 2.0 x64"]
[Result "1-0"]
[WhiteElo "3150"]
[BlackElo "3137"]
[ECO "A25"]
[Time "01:15:30"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "105"]
[Number "50"]
[Termination "GUI adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

1.c4 e5 2.g3 Nc6 3.Nc3 Nf6 4.Bg2 Bc5 5.a3 d6 6.e3 O-O 7.b4 Bb6 8.d3 Bf5 9.h3 h6 10.Nge2 Qc8 11.Na4 Ne7 12.Qc2 a5 13.Bd2 axb4 14.Nxb6 cxb6 15.e4 Be6 16.Bxb4 Nc6 17.Bc3 Nd7 18.f4 f6 19.Qd1 Bf7 20.O-O Nc5 21.Kh2 Bh5 22.g4 Bf7 23.Qc2 Qd7 24.Bd2 Ra4 25.Nc3 Nd4 26.Qd1 Ra5 27.Nd5 Ra6 28.Bb4 Rc8 29.Ra2 b5 30.Raf2 Bxd5 31.exd5 Qe8 32.Re1 b6 33.fxe5 fxe5 34.g5 hxg5 35.Bxc5 bxc5 36.Be4 Rxa3 37.Ref1 Rca8 38.Qg4 bxc4 39.Qxg5 Ra2 40.Rxa2 Rxa2+ 41.Kh1 Ra8 42.Bg6 Qf8 43.Rxf8+ Kxf8 44.Qh5 Ke7 45.dxc4 Kf6 46.Be8 Ra1+ 47.Kg2 Ra2+ 48.Kf1 e4 49.Qg6+ Ke5 50.Qg3+ Kf6 51.Qxd6+ Kf5 52.Bd7+ Kg5 53.Qe5+ 1-0 [/pgn]

Twenty-sixth pairing: Protector Vs Stockfish

Stockfishes finishes strongly with two wins against Protector

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.25"]
[Round "7.3"]
[White "Protector 1.9.0"]
[Black "Stockfish 180416 64 POPCNT"]
[Result "0-1"]
[WhiteElo "3153"]
[BlackElo "3340"]
[ECO "A30d"]
[Time "03:23:37"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "117"]
[Number "51"]
[Termination "GUI adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

1.Nf3 Nf6 2.g3 c5 3.c4 d5 4.cxd5 Nxd5 5.Bg2 Nc6 6.Nc3 Nxc3 7.bxc3 e5 8.Qa4 Bd7 9.Rb1 Rb8 10.Qe4 Bd6 11.d4 Qe7 12.d5 Na5 13.Nh4 Qf6 14.O-O b5 15.Qc2 O-O 16.e4 a6 17.Nf5 Bxf5 18.exf5 Qe7 19.h4 f6 20.h5 h6 21.Re1 c4 22.Re4 Nb7 23.Rg4 Kh8 24.Rg6 Rf7 25.a4 Nc5 26.axb5 axb5 27.Qd1 Qf8 28.Qe2 Ra7 29.Kh2 Ra6 30.Kg1 Nd3 31.Be4 Nxc1 32.Rxc1 Rba8 33.Kg2 Ra2 34.Rc2 Rxc2 35.Qxc2 Ra5 36.Qb2 Kh7 37.g4 Qd8 38.Qe2 Bf8 39.Qd2 Ra6 40.Qb2 Qd7 41.Qd2 Qa7 42.Bc2 Qc5 43.Kf3 b4 44.cxb4 Ra3+ 45.Kg2 Qd4 46.Qd1 Ra1 47.Qe2 Bxb4 48.Qe4 Bc5 49.Qe3 Qxe3 50.fxe3 Ra2 51.Kf3 Rxc2 52.g5 hxg5 53.h6 Bf8 54.Kg4 c3 55.d6 Rd2 56.d7 c2 57.d8=Q Rxd8 58.Rxg5 fxg5 59.hxg7 0-1 [/pgn]


[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.25"]
[Round "7.4"]
[White "Stockfish 180416 64 POPCNT"]
[Black "Protector 1.9.0"]
[Result "1-0"]
[WhiteElo "3340"]
[BlackElo "3153"]
[ECO "A30d"]
[Time "05:21:56"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "162"]
[Number "52"]
[Termination "GUI adjudication"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

1.Nf3 Nf6 2.g3 c5 3.c4 d6 4.Nc3 e5 5.d3 Be7 6.Bg2 Nc6 7.a3 O-O 8.Rb1 a6 9.O-O Rb8 10.b4 Bg4 11.Bg5 Re8 12.Nd2 cxb4 13.axb4 Qd7 14.Qa4 Rec8 15.e3 Bf5 16.Bxf6 Bxf6 17.Nde4 Bd8 18.b5 axb5 19.Qxb5 Bg6 20.c5 Bc7 21.Nd5 Bxe4 22.dxe4 Rd8 23.Rfd1 Ba5 24.Bf3 Qe8 25.Ra1 dxc5 26.Rxa5 Nxa5 27.Qxa5 b5 28.Rb1 c4 29.Be2 Kh8 30.Nc3 Rdc8 31.Bg4 Rc5 32.Qa3 Qf8 33.Bd7 Ra8 34.Qb2 h6 35.Bxb5 Rcc8 36.Kg2 Qd6 37.Qc1 Qd3 38.Rb4 Kg8 39.Qb2 Kh7 40.Ba4 Qd6 41.Bd1 Rab8 42.Rxb8 Rxb8 43.Qa2 Qc6 44.Qa7 Rb7 45.Qa3 Qb6 46.Nd5 Ra7 47.Qf8 Qe6 48.Bh5 Rb7 49.Qc5 Rb8 50.Qxc4 g6 51.Bg4 Qd6 52.Be2 Rb2 53.Bf1 Kg7 54.Bd3 h5 55.h4 Rb8 56.Qa4 Rb2 57.Bc4 Rb8 58.Qa1 Rc8 59.Be2 Kh6 60.f4 exf4 61.exf4 f5 62.Qd4 Qe6 63.e5 Rc2 64.Kf3 Rc8 65.Ne3 Qc6+ 66.Qd5 Qc7 67.Bb5 Qb6 68.Qd6 Qb7+ 69.Kf2 Qa7 70.e6 Rc7 71.Be2 Kh7 72.Kg2 Rb7 73.Qe5 Qb8 74.Qxb8 Rxb8 75.e7 Kg8 76.Bb5 Kf7 77.e8=Q+ Rxe8 78.Bxe8+ Kxe8 79.Nc4 Kf8 80.Kf3 Kg8 81.Ke3 Kh7 1-0 [/pgn]

Twenty-seventh pairing: Nirvanachess vs Fire

Fire finishes strongly too, winning its last two games. French opening.

[pgn] [Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.25"]
[Round "7.5"]
[White "Nirvanachess 2.2"]
[Black "Fire 4 x64"]
[Result "0-1"]
[WhiteElo "3157"]
[BlackElo "3207"]
[ECO "C02m"]
[Time "08:01:19"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "117"]
[Number "53"]
[Termination "GUI TB Mate in 5"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

1.Nf3 e6 2.e4 d5 3.e5 c5 4.c3 Nc6 5.d4 Nge7 6.Bd3 cxd4 7.cxd4 Nf5 8.Bxf5 exf5 9.Nc3 Be6 10.Qb3 Rb8 11.h4 h6 12.O-O Be7 13.h5 g5 14.hxg6 fxg6 15.Rd1 g5 16.Ne1 f4 17.Qc2 h5 18.Qg6+ Kd7 19.b4 Qg8 20.Qc2 h4 21.Ba3 h3 22.b5 Nb4 23.Bxb4 hxg2 24.Nxg2 Bxb4 25.b6 Qh7 26.Qxh7+ Rxh7 27.Na4 Rbh8 28.f3 axb6 29.Nxb6+ Kc6 30.Na4 Ba3 31.Kf2 Bf5 32.Nc3 Bb2 33.Rab1 Bxb1 34.Rxb1 Bxc3 35.Rc1 Ra8 36.Rxc3+ Kd7 37.a3 Ra4 38.Rb3 Kc6 39.Rd3 b5 40.Kg1 Rha7 41.Rc3+ Rc4 42.Rb3 b4 43.Rxb4 Rxa3 44.Rb2 Rxf3 45.Ne1 Rg3+ 46.Kf1 Rxd4 47.Nc2 Re4 48.e6 g4 49.Rb4 Rf3+ 50.Kg1 Rd3 51.Rb1 Kd6 52.Rb6+ Ke5 53.Rb1 Kxe6 54.Nb4 Rd2 55.Nxd5 Kxd5 56.Ra1 Red4 57.Rf1 Rd1 58.Kg2 Rxf1 59.Kxf1 0-1 [/pgn]

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.25"]
[Round "7.6"]
[White "Fire 4 x64"]
[Black "Nirvanachess 2.2"]
[Result "1-0"]
[WhiteElo "3207"]
[BlackElo "3157"]
[ECO "C01p"]
[Time "09:58:35"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "170"]
[Number "54"]
[Termination "GUI adjudication"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

1.Nf3 e6 2.e4 d5 3.exd5 exd5 4.d4 Nf6 5.Bd3 Bd6 6.Qe2+ Be7 7.O-O O-O 8.Re1 Nc6 9.c3 Re8 10.Qc2 Bd6 11.Rxe8+ Qxe8 12.Be3 h6 13.Nbd2 Be6 14.Re1 Qc8 15.Nf1 Ne4 16.a3 f5 17.c4 dxc4 18.Bxc4 Bxc4 19.Qxc4+ Kh7 20.N1d2 Nxd2 21.Bxd2 Qd7 22.d5 Qf7 23.g3 Kg8 24.Re6 Nd8 25.Re2 Nc6 26.Qb3 b6 27.Bc3 Ne7 28.Re6 Rd8 29.Bb4 Kh7 30.Bxd6 Rxd6 31.Ne5 Qf8 32.Rxd6 cxd6 33.Nc6 Qf7 34.Nxa7 Nxd5 35.Qd3 Qe6 36.Kf1 Kg6 37.Nc6 Nf6 38.Qe2 Qd7 39.Qc2 Qe6 40.a4 d5 41.Kg2 Qe4+ 42.Qxe4 fxe4 43.b4 Kf5 44.a5 bxa5 45.bxa5 Nd7 46.f3 Ke6 47.a6 Nb6 48.a7 Kd7 49.Nd4 Kc8 50.fxe4 dxe4 51.Kf2 Kb7 52.Ke3 Kxa7 53.Kxe4 g6 54.Nc6+ Kb7 55.Ne5 Kc7 56.Nxg6 Kd6 57.Nh4 Ke6 58.Nf5 h5 59.Ng7+ Kf6 60.Nxh5+ Kg5 61.Nf4 Kg4 62.Nd5 Nd7 63.Ne3+ Kg5 64.h4+ Kg6 65.g4 Nc5+ 66.Kd4 Nb3+ 67.Ke5 Nc5 68.Nd5 Nd3+ 69.Ke6 Nc5+ 70.Kd6 Nb3 71.Ke5 Nd2 72.Kf4 Nb3 73.h5+ Kh6 74.Nf6 Kg7 75.g5 Nd4 76.Ne8+ Kf8 77.h6 Ne2+ 78.Ke3 Ng3 79.h7 Nf5+ 80.Kd3 Ke7 81.h8=Q Kd7 82.Nf6+ Kd6 83.Qd8+ Ke5 84.Ne4 Ke6 85.g6 Ke5 1-0
[/pgn]

Twenty-eighth pairing: Critter vs Gull

One win for each engine in these final two games.

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.25"]
[Round "7.7"]
[White "Critter 1.6a 64-bit"]
[Black "Gull 3 x64"]
[Result "1-0"]
[WhiteElo "3171"]
[BlackElo "3200"]
[ECO "A30t"]
[Time "12:45:33"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "158"]
[Number "55"]
[Termination "GUI adjudication"]
[BlackType "program"]
[WhiteType "program"]
[Variant "normal"]

1.Nf3 Nf6 2.g3 b6 3.Bg2 Bb7 4.O-O e6 5.c4 c5 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 Nc6 9.Qf4 O-O 10.Rd1 Bc5 11.Be3 Be7 12.g4 d6 13.g5 Ne8 14.Qg3 Qd7 15.Rac1 Rd8 16.b3 Ba8 17.Rd2 g6 18.Ne4 Qc7 19.Rcd1 Qc8 20.Qf4 Kh8 21.Bh3 Qc7 22.Bf1 Qb7 23.Nf6 h5 24.Bg2 Qc7 25.Qh4 Kg7 26.Ne4 Kg8 27.Qg3 Qc8 28.Nh4 d5 29.cxd5 exd5 30.Rxd5 Rxd5 31.Rxd5 Nb4 32.Rd2 Qc1+ 33.Bf1 Qc8 34.f3 Bxe4 35.Qe5 Nd5 36.Qxe4 Nxe3 37.Qxe7 Nxf1 38.Rd8 Qc7 39.Qxc7 Nxc7 40.Rd7 Ne6 41.Kxf1 Ra8 42.Ng2 Nxg5 43.Nf4 h4 44.Rb7 Kg7 45.a4 Kf6 46.Nd5+ Ke5 47.Nc7 Rd8 48.Ke1 Nh3 49.Rxa7 Rd7 50.Nb5 Rxa7 51.Nxa7 Kd6 52.Kd2 Nf4 53.b4 Nd5 54.Nb5+ Kd7 55.Na3 Nxb4 56.Nc4 Kc6 57.Ne5+ Kd5 58.Nxf7 Ke6 59.Ng5+ Kf5 60.Nh3 Ke5 61.e3 Nd5 62.Kd3 Nb4+ 63.Kc4 Nc2 64.e4 Ne1 65.Ng5 Kd6 66.f4 Kd7 67.Kb5 Ng2 68.Kxb6 Nxf4 69.a5 Kc8 70.a6 Kb8 71.h3 Ka8 72.e5 Nd5+ 73.Kc6 Ne7+ 74.Kd7 Nd5 75.e6 Kb8 76.e7 Ka7 77.Kd8 Nxe7 78.Kxe7 Kxa6 79.Kf6 Kb6 1-0 [/pgn]

[pgn][Event "Freezone - Episode I"]
[Site "ChessGUI"]
[Date "2016.04.25"]
[Round "7.8"]
[White "Gull 3 x64"]
[Black "Critter 1.6a 64-bit"]
[Result "1-0"]
[WhiteElo "3200"]
[BlackElo "3171"]
[ECO "A30q"]
[Time "15:25:10"]
[TimeControl "40/2400:40/2400:40/2400"]
[PlyCount "129"]
[Number "56"]
[Termination "GUI adjudication"]
[WhiteType "program"]
[BlackType "program"]
[Variant "normal"]

1.Nf3 Nf6 2.g3 b6 3.Bg2 Bb7 4.c4 c5 5.Nc3 e6 6.O-O Be7 7.d4 cxd4 8.Nxd4 Bxg2 9.Kxg2 O-O 10.e4 Qc7 11.Qe2 Nc6 12.Ndb5 Qb8 13.Rd1 h6 14.Bf4 e5 15.Be3 a6 16.Na3 Qb7 17.Rac1 Rac8 18.f3 Bc5 19.Nc2 d6 20.Qd3 Rfd8 21.h4 Kh8 22.b3 Ne8 23.a3 Nc7 24.b4 Bxe3 25.Nxe3 Ne6 26.Ne2 Kh7 27.Qd5 Qa7 28.Nf5 Ne7 29.Qd2 Nxf5 30.exf5 Nc7 31.Qd3 Kg8 32.g4 b5 33.c5 d5 34.f4 e4 35.Qc3 Ne8 36.g5 Qd7 37.Qh3 a5 38.Nd4 axb4 39.axb4 Ra8 40.Ra1 Nc7 41.Qg4 Kh7 42.Kh2 hxg5 43.Qh5+ Kg8 44.hxg5 g6 45.fxg6 fxg6 46.Qxg6+ Qg7 47.Qxg7+ Kxg7 48.Kg3 Kg8 49.f5 Ra4 50.Rxa4 bxa4 51.b5 Rb8 52.b6 Na6 53.Ne6 Nxc5 54.Nxc5 Rxb6 55.Nxa4 Rb3+ 56.Kf4 e3 57.Kf3 e2+ 58.Kxe2 d4 59.Rxd4 Rb5 60.Rf4 Kf7 61.Ke3 Re5+ 62.Kd4 Rb5 63.Nc5 Rb2 64.Ke5 Ke8 65.g6 1-0 [/pgn]

Final results:



- Stockfish wins this tournament, remaining the only undefeated engine during the contest.

- Great performance by Fire, which won half of the Black wins in this tournament (4 out of eight).

- Only two other engines got Black wins (2 for SF and 2 for Critter).

- Very solid performance by the veteran Critter. Shame this great engine is no longer developed.

- Protector and BlackMamba were definitely not strong enough for this field.

- Shortest White win: SF vs Andscacs (round 4.7, 51 moves)
- Shortest Black win: BlackMamba vs Fire (round 2.1, 43 moves)
- Shortest game: Critter vs Andscacs (round 2.6, 31 moves)
- Longest game: Critter vs Nirvanachess (round 1.8, 142 moves)
- Longest decisive game: Gull vs Andscacs (round 5.5, 117 moves, Gull wins)

That's all for now. Hope this was fun for whoever followed this