Speelman's Agony #89
Many thanks first to everybody who's sent games into the drop box in recent weeks. Two requests though: Please include an email address so that I can contact you. And please use either PGN or a compressed ChessBase database CBV. (In ChessBase, click Menu→Database→Backup database, or hit Ctrl+Z.)
This week's pair of games are from Ted Jewell, an American who wrote:
Houdini 6 continues where its predecessor left off, and adds solid 60 Elo points to this formidable engine, once again making Houdini the strongest chess program currently available on the market.
My reason for choosing these games is that they fit into the categories of one that got away and one that didn't. These were played online (hence my username Woofledust).
Everyone has had a game that went very well until a moment when a single move turned a big advantage into a certain defeat with no chance for coming back. Those for me are especially painful, and I am only too familiar with the feeling (having started playing in tournaments in 1968). On the other hand, everyone has had a game where an attack was built, there were decisions to be made, and the victory eventually arrived.
The first game (Caesar v. Woofledust) is one that got away. During the game I was pleased to find 30... Qb1. When my opponent played 32.Qe6+, I had three legal moves to consider. Two of them maintain a large edge, and the other can draw (but requires accurate play). I failed to appreciate the danger and played the worst of the three and then saw my position disintegrate. In the old days one could wonder whether there might have been something else possible, but engines eliminate that mystery (and any delusional ignorance) and demonstrate what should have been done and what was there to be had. Oh well.
The second game (Chess999 v. Woofledust) is not the tidiest game (as I discovered post-mortem with engines), but it was a satisfying win that made me feel that I can at least consider myself somewhat skilled at this game. In going over the game with my engines (Stockfish 8 and Houdini 3), I was intrigued by how differently they approached the positions. Often the engines will basically have the same few candidate moves and prefer one or another by some slight amount, but in this case they took radically disparate strategies. In the early part I tended to be aligned with Stockfish, but toward the end, I shifted over to Houdini's moves.
Ted sent the games as bare scores and so the notes are all mine. As he did, I used Houdini to bounce off (but, as ever, asked it questions rather than blindly followed it).
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1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 0-0 5.e4 d6 6.Nge2 c5 7.0-0 Nc6 8.d3 Bg4 8...a6 9.h3 Rb8 10.a4 Ne8 9.f3 9.h3 Bxe2 10.Nxe2 Ne8 9...Bd7 10.Be3 e5 10...a6 11.d4 11.Qd2 Rb8 12.a4 Ne8 11...cxd4 12.Nxd4 Ne5 13.b3 b5 14.cxb5 Qa5 11.a3 Rc8 11...a6 12.Rb1 Rb8 13.b4 cxb4 14.axb4 b5 12.Rb1 Nd4 13.b4 b6 14.b5 14.h3 Ne8 14...Nh5? 15.g4 Nf4 16.Nxf4 exf4 17.Bxf4 Ne6 18.Bd2 g5 15.f4 Nc7 16.Qd2 16.b5 16...b5 14...Ne8 15.a4 f5 16.Nd5 Nf6 17.Nec3 17.Bg5 Nxe2+ 17...Qe8 18.Bxf6 18.Nxd4 18...Bxf6 18...Nxe2+ 19.Qxe2 Bxf6 20.exf5 Bxf5 21.Nxf6+ 21.a5 21...Rxf6 19.Nxd4 cxd4 20.f4 18.Qxe2 f4 19.gxf4 exf4 20.Nxf4 h6 21.Bxf6 Qxf6 22.Nd5 Qd4+ 23.Kh1 17...fxe4 18.dxe4 18.fxe4 Ng4 19.Bd2 Bh6 19...Be6 20.Rxf8+ Qxf8 21.Qf1 20.Rxf8+ Qxf8 21.Bxh6 Nxh6 22.Qf1 18...Nxd5 19.Nxd5 Be6 20.Ra1?! Bxd5 21.exd5 21.cxd5 c4 22.Bh3 Rc5 23.Rc1 c3 24.Qd3 Nxf3+ 24...Qc7 25.f4 25.Kg2 Nd4 26.Rxc3 21...e4! 22.Ra2 22.fxe4 Rxf1+ 23.Bxf1 Nc2 24.Qxc2 Bxa1 25.Bh3 22...exf3 23.Bxf3 Qe7 24.Bf4? 24.Bxd4 cxd4 24...Bxd4+ 25.Kg2 25.Bg4 Rxc4 26.Rxf8+ Qxf8 27.Be6+ Kh8 28.Rf2 Qd8 29.Kg2 24...g5 24...Nxf3+ 25.Qxf3 25.Rxf3 g5 26.Bd2 Qe4 25...g5 26.Re2 Qd7 25.Bc1 Nxf3+ 26.Rxf3 Rxf3 27.Qxf3 Qe1+ 28.Qf1 Bd4+ 29.Kg2 Qe4+ 30.Qf3 Qb1 31.Qe2! Rf8 32.Qe6+ 32...Kg7? 32...Kh8! 33.Qe2 33.Qxd6 Qxa2+ 33...Qe4+ 34.Kh3 Qf5+ 34...g4+? 35.Kh4 Bf6+ 36.Bg5 Bxg5+ 37.Kxg5 Rf5+ 38.Kh4 Qe8 39.Qh6 35.g4 Qf1+ 36.Rg2 Rf3+ 37.Qg3 Rxg3+ 38.Kxg3 Qxc1 34.Kh3 Rg8 33...Qxc1 32...Rf7 33.Ra3 Kg7 33.Qe7+ Rf7? 33...Kg8 34.Qxg5+ Kh8 35.Re2 Qd3 34.Qxg5+ Kh8 35.Re2 Be5 36.Bf4 Rf5 37.Qd8+ Kg7 38.Qd7+ Kg6 39.Qe6+ Rf6 40.Qg8+ Kf5 41.Qg5# 1–0 - Start an analysis engine:
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Caesar (1953) | - | Woofledust (1990) | - | 1–0 | 2018 | A36 | Chessbase Rapid | 1 |
Chess999 (1972) | - | Woofledust (1899) | - | 0–1 | 2018 | E97 | Chessbase Rapid | 1 |
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