WCRCC game: Nightmare - The Baron

[pijl]

This was an entertaining game from the WCRCC. I hope you enjoy it as well.

[Event "ICS unrated standard match"]
[Site "chessclub.com"]
[Date "2016.07.16"]
[Round "?"]
[White "NightmareX"]
[Black "TheBaron"]
[Result "0-1"]
[Annotator "2... -0.25"]
[BlackElo "2606"]
[ECO "C50"]
[TimeControl "1500+4"]
[WhiteElo "2712"]

1.e4 e5 2.Nf3 Nc6 { -0.25/13 } 3.Bc4 Nf6 { -0.25/13 } 4.d3 Bc5 { -0.14/11 } 5.O-O d6 { -0.08/11 } 6.c3 Bb6 { -0.08/11 } 7.Bg5 Qe7 { -0.17/19 1:39 } 8.a4 h6 { -0.22/19 29 } 9.Bh4 a5 { -0.19/19 39 } 10.Nbd2 g5 { -0.20/19 28 } 11.Bg3 Nd7 { -0.32/19 28 } 12.Bb5 h5 { -0.49/23 2:05 } 13.h4 g4 { -0.44/22 25 } 14.Ne1 Nd8 { -0.51/21 43 } 15.Nc2 c6 { -0.40/22 38 } 16.Bc4 Nf8 { -0.40/22 27 } 17.d4 Ng6 { -0.35/21 26 } 18.Bd3 Nxh4 { -0.41/20 41 } 19.Ne3 Bc7 { -0.38/21 1:20 } 20.Qe1 Ng6 { +0.22/19 30 } 21.Nf5 Qf8 { +0.16/20 42 } 22.Nc4 h4 { +0.27/20 23 } 23.Bh2 Ne6 { +0.16/19 27 } 24.Be2 h3 { +0.09/19 38 } 25.g3 Ng5 { +0.24/19 43 } 26.Bxg4 Be6 { +0.11/18 27 } 27.Nd2 Nh7 { +0.44/19 50 } 28.Bf3 Ne7 { +0.38/19 2:01 } 29.Nxe7 Qxe7 { +0.57/21 22 } 30.d5 Bd7 { +0.54/21 48 } 31.Qe3 cxd5 { +0.72/20 20 } 32.exd5 f5 { +0.73/20 24 } 33.Nc4 Qg5 { +0.81/19 32 } 34.Qxg5 Nxg5 { +0.91/17 2.0 } 35.Be2 Ne4 { +0.99/20 1:02 } 36.Rfe1 Nf6 { +1.08/20 32 } 37.f4 e4 { +1.44/20 28 } 38.Kh1 Nxd5 { +1.36/18 19 } 39.Bg1 Ke7 { +1.29/20 1:14 } 40.Kh2 Rag8 { +1.24/20 1:06 } 41.Rad1 Be6 { +1.24/21 41 } 42.Bd4 Rh6 { +1.23/21 1:16 } 43.Rg1 Kd7 { +1.23/20 51 } 44.Rd2 Ke7 { +1.21/19 46 } 45.Rdd1 Bd7 { +1.21/21 34 } 46.b3 Be6 { +1.20/20 22 } 47.Rd2 Bf7 { +1.20/18 24 } 48.Rc1 Rhg6 { +1.26/20 10 } 49.Rg1 Nxf4 { +1.04/20 21 } 50.gxf4 Rxg1 { +0.96/22 15 } 51.Bxg1 Rg2+ { +1.02/22 10 } 52.Kh1 d5 { +1.00/24 33 } 53.Bc5+ Ke6 { +0.97/25 28 } 54.Be3 dxc4 { +0.92/25 30 } 55.Bxc4+ Ke7 { +0.99/27 16 } 56.Bxf7 Rxd2 { +1.00/28 13 } 57.Bxd2 Kxf7 { +0.99/34 10 } 58.Be3 Bd8 { +1.15/33 12 } 59.Kh2 Bh4 { +1.15/36 14 } 60.Kxh3 Be1 { +1.15/39 16 } 61.Bd4 Bd2 { +1.15/30 10 } 62.Kg3 Kg6 { +1.15/33 10 } 63.Be5 Kh5 { +1.15/33 10 } 64.Bd4 Kg6 { +1.15/36 11 } 65.Be5 Kh5 { +1.15/36 17 } 66.Bd4 Be1+ { +1.15/38 10 } 67.Kh3 Kh6 { +1.15/39 12 } 68.c4 Kg6 { +1.15/36 11 } 69.Kg2 Bd2 { +1.15/38 9 } 70.Kg3 Be1+ { +1.15/37 12 } 71.Kg2 Kh5 { +1.15/35 10 } 72.Kh3 Bb4 { +1.15/40 10 } 73.Be3 Kg6 { +1.15/40 11 } 74.Kg2 Kf6 { +1.15/34 8 } 75.Bd4+ Ke6 { +1.15/37 10 } 76.Kf2 Bd2 { +1.15/34 10 } 77.Be5 Ke7 { +1.15/35 8 } 78.Ke2 Bb4 { +1.15/36 9 } 79.Bb2 Kf7 { +1.15/35 8 } 80.Bd4 Kg6 { +1.15/37 10 } 81.Ke3 Kh5 { +1.98/28 43 } 82.Bb6 Kg4 { +1.98/32 8 } 83.c5 Kh3 { +1.98/32 9 } 84.Ke2 Kg4 { +2.54/32 8 } 85.Ke3 Kg3 { +2.06/31 10 } 86.c6 bxc6 { +2.57/25 3 } 87.Bc7 Kg4 { +3.63/31 6 } 88.Ke2 Kh5 { +4.56/35 9 } 89.Be5 Kh6 { +4.54/35 6 } 90.Bd4 Kg6 { +4.54/35 6 } 91.Bb2 Kf7 { +5.74/36 17 } 92.Ba1 c5 { +7.88/30 10 } 93.Kd1 Ke6 { +8.70/31 6 } 94.Ke2 Kd5 { +12.06/33 14 } 95.Bb2 c4 { +14.07/32 13 } 96.bxc4+ Kxc4 { +16.65/29 10 } 97.Bf6 Kb3 { +16.67/27 9 } 98.Ke3 Kxa4 { +18.22/25 16 } 99.Bh4 Bc5+ { +29.55/26 6 } 100.Kd2 Kb3 { +199.69/23 7 } 101.Bf6 a4 { +199.73/28 } 102.Ke1 a3 { +199.75/26 } 103.Kf1 Bb4 { +199.77/24 } 104.Kf2 a2 { +199.77/24 } 105.Kg3 Bc3 { +199.81/20 } 106.Bxc3 Kxc3 { +199.83/80 } 107.Kh4 a1=Q { +199.85/80 } 108.Kg5 e3 { +199.87/80 } 109.Kxf5 e2 { +199.89/80 } 110.Ke6 e1=Q+ { +199.91/10 } 111.Kf6 Qa7 { +199.93/8 } 112.Kf5 Qf7+ { +199.95/6 } 113.Kg4 Qg6+ { +199.97/4 } 114.Kf3 Qgg3# { +199.99/4 NightmareX checkmated } 0-1

[Joost Buijs]

This game should have been drawn but after move 80 Nightmare suddenly started playing kamikaze moves, obviously some kind of bug.
When analyzing Nightmare immediately sees that 81. Ke3 is bad and that this should have been 81. Kf2.

It is very difficult to find out what caused this in a multithreaded program, my take is that it has something to do with repetitions in combination with the hash-table. I have seen this happening before and always after many repetitions in the actual game.

It is not something I'm worrying about because I was playing with an old version of 2013 (I also told this to Charles). The new version (which is entirely different anyway) is not ready for game play yet because it still lacks an UCI interface.

The Baron may consider himself lucky that he more or less got an half point for free. LOL