Thursday, 5 December 2019

Time Trouble

Club nights have been cancelled for the past two weeks as we had two successive home matches in our restricted quarters in the Students' Union. Even fitting four games into the space involved a certain amount of furniture moving. Not only that, but just before the match against Cardigan A on Tuesday 26 November, we discovered that three of our clocks had gone missing from the storeroom. It was not the first time this had happened, and on the last occasion they turned up again, having presumably been borrowed, but as I write we still haven't located them for the second time. Fortunately we were able to do some borrowing of our own, from the University team, and the match went ahead. On top board, Rudy van Kemenade played his favourite Leningrad Dutch, and tried to stir up a kingside attack, but Howard Williams bided his time and then struck back, taking advantage of the weakened kingside left by Rudy's advancing pawns. Adam Watkin-Jones reached what looked like a quiet position in an Italian Game against Iolo Jones, but he underestimated Black's queen and rook lined up on the f-file. A knight sacrifice broke his defences open, ending the game quickly. Julie van Kemenade played a good positional game against Tony Haigh with her d6 system against 1.d4 (Rat or Pribyl or whatever it's called). White was left with a bad bishop and a passive position trying to defend a backward pawn, and his exchange sacrifice solved nothing. I got nothing from my Vienna Game until Ben Brewer, trying to set up an ambitious kingside attack, castled on the queenside despite his open a-file. My attack was quicker, and although I should have finished it sooner than I did, my extra material was enough to win the ending. Yet another 2-2 draw for Aberystwyth, but it was a good result against a strong Cardigan team.

On Tuesday 3rd December we had our local derby against the University team. Adam Watkin-Jones on top board had a quiet game with his English Opening against Cameron Westwood. With both players castled on the queenside, neither looked likely to break through, and a draw was agreed. I was under slight but persistent pressure against Jan Piotrowski in an Alapin Sicilian, till he moved his rook away from the back rank to help his effort and allowed a sudden counter-attack against the vulnerable king. I missed the best move and only managed to win an exchange, but the ending was an easy one. Tom Gunn played the classic Greek gift sacrifice in his Colle System against Kieran Judge. Subsequent analysis shows it was not sound, but Black declined it, and despite winning the exchange, found himself in a mating net, ending an exciting game. Anson Howard, playing his first ever rated game, held his own for a long time against Toby Bates in what I think was a Queen's Indian by transposition, but weakened his kingside, which eventually allowed the White attack through. A win for the Town team, 2½-1½.

We have one more club night in the Union before Christmas, but may meet in the Arts Centre bar on 17 December if there is enough interest.

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1.d4 d6 2.Nf3 f5 3.g3 Nf6 4.Bg2 g6 5.0-0 Bg7 6.c4 0-0 7.Nc3 Qe8 7...c6 featured in numerous battles between Howard & Sven Zeidler over the years 8.Rb1 a5 9.b3 Na6 10.Bb2 Qe8 11.d5 Bd7 12.Nd4 Nc5 13.e3 e5 14.dxe6 Bxe6 15.Nxe6 Qxe6 16.Ne2 Nfe4 17.Bd4= Williams-Van Kemenade, Dyfed League 2017,1-0 8.d5 8.b3 Nc6 9.Bb2 e5 10.dxe5 dxe5 11.e4 f4 11...fxe4 12.Nxe4 Nxe4 13.Qd5+ Rf7= 13...Qf7= 12.Nd5 Rf7 13.Ng5+- Williams-Van Kemenade, Dyfed League 2013,1-0 8...Na6 9.Nd4 9.Rb1 main 9...Nc5 9...Bd7 main 10.b3 c6 11.Bb2 Nc7 12.Qd2 c5 13.Ne6 Bxe6 14.dxe6 Rb8 15.e4 Nxe4 16.Nxe4 Bxb2 17.Qxb2 fxe4 18.Bxe4 b5= Williams-Van Kemenade, Dyfed Open 2006,1-0; Sapi-Krizsany, Budapest FS o3 IM 1994,0-1 10.e3 a restrained response 10.b4 main Nfe4 10...Nce4 10.Ncb5 Qd8 11.b4 10.Rb1 transposes to 111 games, including elite Gms 10...e5N Houdini4 & Komodo13 10...Nfe4 Stockfish 95019 & Komodo13 10...Bd7= 2 draws,1 Bl win 10...a5= 1 draw, 2 Bl wins 10...a6 1 draw 11.dxe6 c6 12.b3 12.b4 12...Bxe6 12...Nxe6 pm analysis lead to nothing clearcut 13.Nxe6 13.Nde2 Qe7= 13...Bxe6 14.Bb2 Ne4 15.Nxe4 15.Qc2 Komodo13 15...Bxb2 16.Nxd6 Qe7 17.c5 Bxa1 18.Qxa1 Rad8 19.Rd1= Komodo13 13.Bb2 13.Qc2 Rc8 14.Rd1 d5 14...Bf7 15.Bb2 Qe7= 15.Ba3 b6 16.Nxe6 Qxe6 17.Bxc5 bxc5 18.cxd5+- Feller-(2424)-Beukema (1735) Bethune op 2006,1-0 13...Rd8 13...Bf7!? 14.Qe2 Bl thought the Q was a little displaced here 14.Qc2 Rudy & Komodo13 14...Bc8= 14...Bf7= 15.Rad1 g5!? an attempt at a Kingside attack- Bl knew it was a little risky as it weakens f5. 15...Qe7= positions more frequent from 7...c6 8.d5, e5 variations 15...Qf7 keeps the option of the Q going to h5 16.b4 Nce4 17.f3 Nxc3 18.Bxc3 g4 probably not the best 18...f4= considered by Bl & PM analysis; the choice of both Komodo13 & Stockfish10 19.exf4 19.gxf4 gxf4 20.e4 Nh5 19.e4 pm analysis fxg3 20.hxg3 Nh5 Komodo13 21.Qe1 Qf7 22.Ne2 Qxc4 19...gxf4 20.Qxe8 Rdxe8 21.Ba1 fxg3 22.hxg3 Nh5 23.Kf2 Nf6 24.Kg1 Nh5= Komodo13 18...d5 considered best in pm analysis 19.c5 f4= Komodo13 20.exf4 gxf4 21.Qd3 21.Qxe8 Rdxe8 22.Rfe1= trying for more seems to slightly favour Bl 21...fxg3 22.hxg3 Nh5 23.Kh2 23.Kf2 Qd7 24.Rh1 Qg4 25.Kg1 Qg6 26.Qxg6 hxg6 23...Rf6 24.Rfe1 Qf7 25.f4 Rf8 26.Kg1 Rg6 Komodo13 19.Qd3 19.Nc2 Qe7 20.Bxf6 Bxf6 21.fxg4 fxg4 22.b5 c5 23.Bd5+ Kh8 24.Ne1 Rde8 25.Ng2 Bg5 both sides have weak p[awns 19.Rde1 Qe7 20.Qd3 gxf3 21.Nxf3 Ng4 22.Bxg7 Qxg7 23.Nh4 Be6= Komodo13 24.Nxf5 Bxf5 25.Rxf5 Qh6 26.h3 Ne5 27.Rxf8+ Rxf8 28.Qe2 Rf6= Bl's N is better than the B 19...gxf3 20.Nxf3 20.Bxf3 Ne4= 20...Bh6 during the later stages of the game & in pm , Bl regretted this choice; yet it is Komodo13's top preference 20...Qe4 20...d5 21.Bd4 dxc4 22.Qxc4+ Qe6 23.Qc5 Nd5 24.Rd3 b6 25.Qc4 Nxb4 26.Qxb4 c5 27.Qa3 cxd4 28.Nxd4 Qf7 29.Rfd1 Kh8 Komodo13 21.Rde1 21.Bd4 Ng4 22.Rde1 Qf7 23.Nh4 Bg5 24.Nf3 Bf6 25.Bxa7 25.Bxf6 Qxf6 26.Nh4 Ne5 27.Qd4 Be6 28.Qxa7 Qg7 29.Qd4 Nxc4 30.Bh3 Rde8 31.Rf4 Ne5 32.Qxd6 Ng6 33.Nxg6 hxg6 34.a4 Bf7 Komodo13- though a pawn is a pawn, albeit a currently weak e3 25...Be6= 21...Ne4 21...Qe4! Komodo13-not considered, even in pm (restraining the e3 pawn, following on from Bh6 targetting it) 22.Qe2 22.Qxe4 Nxe4 23.Bb2 c5 22...Ng4 23.Bd4 Rfe8 24.Kh1 Nxe3 25.Bxe3 Qxe3 26.Qc2 Qa3 27.Rb1 Re3 27...Bg7 28.Nh4 Qc3 29.Qxc3 Bxc3 30.b5 d5 31.Nxf5 dxc4 32.bxc6 bxc6 33.Bxc6 Rf8= 28.Nd4 Qd3 29.Qxd3 Rxd3 30.Nxf5 Bxf5 31.Rxf5 Rc3= Komodo13 22.Bb2 22.Bd4 c5 23.Ba1 cxb4 24.Qd4 Nc3 25.Bxc3 bxc3 26.Qxc3 d5 27.cxd5 Rxd5 28.Qa3 b6 29.Qxa7 Qe6 Komodo13 22...c5?! 22...Qe7 Komodo13; and Bl should be OK 23.Qd4 23.Nd4 Rde8 24.a3 Rf7 23.Nh4 Bg5 24.Nf3 Bh6 25.Bh3 Rf7 23...Bg7= it had in any case been part of Bl's idea to defer the exchange of bl square Bs until the Q could take back 23.Nd2 23.Nh4 is stronger Bg7 24.Nxf5 24.Bxg7 Kxg7 25.Rf4 cxb4 26.Nxf5+ Bxf5 27.Bxe4 Bxe4 28.Rxe4 Qg6 29.Rd1 Rf7 30.Qd4+ Qf6 31.Qxf6+ Kxf6 32.Rd5 b6 33.Rb5 Re7 34.Rxe7 Kxe7 35.Rxb4 Komodo13-Wh is a pawn up, but Bl still has play d5 36.cxd5 Rxd5 37.Rh4 h5 38.Kf2 b5 39.Ke2 a5 24...Bxf5 25.Qd5+ Be6 26.Rxf8+ Bxf8 27.Qxe4 Qg6 28.Qh4 Rd7 29.bxc5 dxc5 30.Be4 Be7 30...Qh6 31.Bd5+- 31.Qf4 Qg5 32.Qb8+ Bd8 33.h4 Qh5 34.Bxb7+- 23...Nf6?! 23...Nxd2 had to be tried 24.Qxd2 24.Qc3 Qg6 25.Bd5+ Be6 26.Qxd2 Rd7 27.a3 Re7= 24...Qg6 25.a3 b6 26.Qd3± Komodo13- but Wh has yet to win 24.e4+- 24.a3 Rf7 25.e4 Is even stronger according to Komodo13 24...Nxe4 24...f4 25.gxf4 cxb4 26.Kh1 Kh8 27.Qb3 a5 28.a3 bxa3 29.Qxa3 Qh5 30.e5 dxe5 31.Rxe5 Qh4 32.Nf3 32.Rg5+- 32...Qg4 33.Re7 Bxf4 34.Qxa5+- according to Komodo13, but still looks as if Bl is holding? Rd6 35.Qb4 Rg8 35...Ra6 36.Rxh7+ Kxh7 37.Qxf8+- 36.Rg1 Qf5 37.c5 Re6 38.Rxe6 Bxe6 39.Qc3 Rf8 40.Bh3+- Engines always find a way through, even if hunans don't 25.Nxe4 fxe4 26.Bxe4 Rxf1+ Bl was hoping this might cause a bit of dislocation in the Wh ranks 27.Rxf1 merely 9 ahead 27.Qxf1 Komodo13- 20 ahead Qf7 28.Bd5 27...Qe7 27...Bg7 28.Bd5+ stronger than 28.Bxh7+ Kh8 29.Bg6 28...Be6 29.Bxg7 Kxg7 30.Qc3+ Kg8 31.Re1 Bf7 32.Rxe8+ Rxe8 33.bxc5 dxc5 34.Qf6?? 28.Bd5+ 28.Bxh7+! Komodo13 Qxh7 29.Qd5+ Qf7 30.Qxf7# 28...Be6 29.Qc3 29.Re1 expected by Bl 29...Bxd5 other moves just delay the mate 29...Bg7 is the longest 30.Bxe6+ Kh8 31.Rf7 Qxf7 32.Bxf7 Rg8 33.Qd2 Rf8 34.Qxd6 Ra8 35.Qh6 Bxb2 36.Bg6 Bd4+ 37.Kg2 Kg8 38.Qxh7+ Kf8 39.Qf7# 30.Qh8# 1–0
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WhiteEloWBlackEloBRes
Williams,A2329Van Kemenade,R19771–0
Watkin-Jones,A1942Jones,I22060–1
Haigh,A1767Van Kemenade,J17320–1
Francis,M1664Brewer,B15731–0
Watkin-Jones,A1942Westwood,C1617½–½
Piotrowski,J1439Francis,M16640–1
Gunn,T1400Judge,K11761–0
Bates,T1119Howard,A11001–0
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