Sunday, 20 December 2020

Getting Back on the Horse

To continue the equine metaphor from my previous post, having fallen at the last fence in the Welsh Chess Union Online League, Aberystwyth had to get back on the horse in the next round of the Dyfed equivalent, in another match against Aberystwyth University, this time their B team. Accordingly we fielded a strong team, but the result, though not the whitewash of the previous match, was not as good as we hoped. Rudy van Kemenade used his experience in the Anglo-Dutch to build pressure against Cameron Westwood's weaknesses, first on d3, then on the kingside, and was clearly better when his opponent dropped a piece with a mouse-slip. Adam Watkin-Jones's game against Marcus Perry was another English, which went wrong for White when he missed a tactical point, leaving him material down with a worse position. I miscalculated my chances in another Dutch against Harry Fox, and all I got out of my intended kingside attack was a pawn deficit and a big loss of time. When he blundered just before the end I completely missed it, and made a blunder of my own in return. Tom Gunn won a couple of pieces early on in a Queen's Pawn Game against Patrick Bourne for a trouble-free win. A 2-2 draw was a slightly disappointing result.

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MoveNResultElo
1.e41,172,27354%2421
1.d4951,24355%2434
1.Nf3283,16356%2440
1.c4182,99656%2442
1.g319,77556%2427
1.b314,39754%2427
1.f45,92048%2377
1.Nc33,83450%2384
1.b41,76548%2379
1.a31,22854%2405
1.e31,07449%2409
1.d395850%2378
1.g466746%2361
1.h445753%2378
1.c343651%2426
1.h328356%2419
1.a411560%2464
1.f39646%2431
1.Nh39166%2508
1.Na34262%2482
1.c4 f5 A10 English Opening: Anglo-Dutch Defense 1...d6 2.g3 g6 3.Bg2 Bg7 4.e4 e5 5.Nc3 Nf6 6.Nge2 The Botwinnik System 0-0 7.0-0 Nbd7 8.h3 Ne8 9.d3 f5 10.f4 Westwood-J Van Kemenade, WCU U1800 online dec 2020,1-0 2.Nc3 Nf6 3.d3 g6 4.g3 Bg7 5.Bg2 d6 6.f4 6.e4 main Nc6 7.Nge2 0-0 8.0-0 h6 8...e5 9.Rb1 a5 10.a3 Nh5 Peacock-Van Kemenade, Bolton op 1997,1/2-1/2 8...e6 Francis-Van Kemenade, Dyfed Closed 2014,0-1 9.h3 e6 10.exf5 gxf5 11.d4 e5 Ellison-Van Kemenade, Isle of Man 2001,1/2-1/2 6.e3 0-0 7.Nge2 e5 8.0-0 Nc6 9.Rb1 a5 10.a3 another main line 6...Nc6 7.e3 7.Nf3 e5 transposes to 44 games 7...e5 8.Nge2 0-0 9.0-0 Be6 10.h3 10.Nd5 Qd7 11.Nec3 main moves 10.Rb1 10...Kh8 allows B to drop back to g8 if required 11.Kh2 d5 positionally desirable for Bl , but a bit too soon 11...Qd7 12.Nd5 Nd8 13.Qc2 c6 14.Nxf6 Bxf6 15.fxe5 dxe5 16.Bd2 Qg7 17.Rab1 h5 Kostic-Petrovic, YUG ch, women 1999,0-1 11...Bg8 Stockfish12-R 11...e4 Komodo10 12.Nd5= Stockfish12-R 12.cxd5 12.fxe5 Nxe5 13.Nf4 Bg8 14.cxd5 14.Ncxd5 14...g5 15.Ne6 Bxe6 16.dxe6 Qxd3 17.Qxd3 Nxd3 18.Rxf5 Rae8 19.Bd2 Rxe6 20.Nb5 c6 21.Nd4 Ree8 22.Bc3± Stockfish12-the Wh pieces are more actively placed than the Bl ones-R 12...Nxd5 13.Nxd5 Bxd5 14.e4 Be6 leaves the d3 as a target 14...fxe4 15.Nc3 15.dxe4 Bc4 looked at by Bl is worse for Wh 16.Qe1 exf4 17.gxf4 Qe7-+ Wh is way behind in development & his hanging pawns in the centre look precarious 15...Bg8 16.dxe4 Bc4 17.Rf2 Qxd1 18.Nxd1 Be6 Stockfish12-R 15.Be3 Qd7 15...fxe4 16.dxe4 exf4 17.Nxf4 17.gxf4 Bc4 18.Qe1 g5 17...Bc4 Stockfish12 still likes it , even with giving Wh an extra move-R 16.Qd2 16.fxe5 Stockfish12 thinks that Wh should now advance in the centre Nxe5 16...Bxe5 17.d4+- 17.Bc5 Rfe8 18.d4 Nf7 19.e5 19.d5 Bxd5 20.Nc3 20.exd5 Qb5 20...Be6= 19...Rad8= Stockfish12 16...Rad8 16...fxe4 17.dxe4 Qxd2 18.Bxd2 Bc4 Stockfish12- remains an option for Bl-R 17.Rfd1 Qf7 17...fxe4 18.dxe4 Qxd2 considered 19.Rxd2 Rxd2 20.Bxd2 Rd8 21.Bc3 Bc4 22.Ng1 exf4 23.gxf4 Bxc3 24.bxc3 Rd3-+ 18.exf5 18.Nc3 may be Wh's best bet here exf4 19.Bxf4 Nb4 20.Qe2 h6 20...Nxa2 21.exf5 gxf5 22.Re1 Rfe8 23.Nxa2 Bxa2 24.Qf2 b6 21.a3 Nc6 22.exf5 Bxf5 23.Bxc6 bxc6 24.Be5 h5 Stockfish12- the Wh K is a bit more exposed than the Bl one-R 18...Bxf5 19.Bxc6 breaks up Bl's Q side, but the B is a key protector of the K-dangerous to exchange it if Bl keeps his wh square B. Rxd3 20.Qc1 bxc6 20...Rxd1 21.Qxd1 bxc6 22.fxe5 Bxe5 23.Bd4 Qf6 24.Bxe5 Qxe5 Wh has got rid of Bl's 2 Bs, bot on the open board, Bl's remaining B is far superior to the N, which is unable to threaten the Bl K, 25.Qd2 Rb8 26.Nc3 Kg7 27.Qf2 27.Re1 Rxb2 27...h5 Stockfish12-R 21.Rxd3 Bxd3 22.Qd2 Be4 22...Bxe2 23.Qxe2 Re8 Stockfish12;considered-R 23.Bc5 Re8 24.a3 24.Nc3 Bd5 25.Bxa7 Kg8 26.Nxd5 Qxd5 27.Qxd5+ cxd5 28.Rc1 e4 29.Kg2 Bxb2 30.Rxc7 e3 31.Rc2 d4 32.Kf1 Bc3-+ Stockfish12 24...Qd5-+ 24...exf4 considered 25.Nxf4 g5 26.Ne2 Qd5 27.Qxd5 Bxd5 28.Nc3 Rb8 29.Na4 a5 30.Re1 h5-+ Stockfish12- Bl's Bs control the board-R 25.Qxd5 cxd5 26.Bb6 mouse-slip; however 26.Bxa7 exf4 27.Nxf4 Ra8 Stockfish12 27...Bxb2 looks simpler 28.Bc5 Rb8 29.Bb4 c5 30.Bxc5 Rxb2+ 31.Kg1 g5 and all of Wh's pieces are badly placed 26.fxe5 Bxe5 27.Nd4 Kg7 28.Bxa7 Ra8 29.Bc5 Ra4 30.b4 h5 and Wh is running out of moves 26...axb6 Normal White resigns. 0–1
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WhiteEloWBlackEloBRes
Westwood,C1675Van Kemenade,R19990–1
Watkin-Jones,A1918Perry,M14280–1
Fox,H1400Francis,M16481–0
Gunn,T1398Bourne,P10001–0

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