Wednesday, 3 November 2021

Back in Business

Although the club has suspended face-to-face chess for the year, members are continuing to take part in online events. The first round of the Dyfed Closed Online tournament recently took place and it will run until January. The WCU online leagues have also resumed, and we are greatly helped here by the fact that Rudy and Julie van Kemenade are still available to play for us. We are taking part in the formidably strong Open section, with Rudy as our captain and top board. We don't have enough available members to field an under-1800 team as well, so Tom Gunn and Sam Holman, as well as taking their turns in the Open team, will be playing for Steynton at the lower level.

Our first match in the Open was against White Knights. Rudy's Petroff against Bill Hewitt reached an unbalaced middlegame where Black had two pieces for a rook. The advantage was with Rudy, who managed to convert the imbalance to a clear extra knight, only to get it trapped in the endgame. After that he was still a pawn up in the queen ending but could only draw. I spent most of the game trying to shore up the weaknesses in my position against Allan Pleasants's Modern Defence, but was beginning to feel more comfortable as time started to run out for both of us. I then thought I saw an opportunity to go on the attack, but it was an illusion and my position quickly collapsed. Julie took too long getting her counter-attack started against Jason Garcia in a King's Indian Defence. White's centre was very dominant, and, as she tried to mix things up, she walked into a pawn fork and resigned at once. Tom's Queen's Gambit gave Tomasz Miga the two bishops and an imposing phalanx of pawns on the queenside, which ultimately proved impossible to stop. White Knights won the match 3½-½.

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1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Nc6 7.0-0 Be7 7...Bg4 8.c4 Nf6 9.Nc3 Bxf3 10.Qxf3 Nxd4 11.Qh3 dxc4 11...Ne6 12.cxd5 Nxd5 13.Re1 Nxc3 14.bxc3 Qf6 15.Bf5 Be7 16.Be3 h6 17.Bxe6 fxe6 18.Bd4 Qf7 19.Rxe6 0-0 20.Qg3 Bh4 J Howell-Van Kemenade, Sheffield 1991,0-1 12.Bxc4 Qd7 13.Qe3+ Be7 14.Rd1 0-0-0 Hewitt-Van Kemenade, WCPL 2012,0-1 8.c4 Nb4 9.Be2 0-0 9...c6 has been tried here but scores badly for Bl (at 11% with 4-0 losses for Van Kemenade) 10.Nc3 10.a3 Nc6 11.cxd5 Qxd5 12.Nc3 Nxc3 13.bxc3 Bf5 14.Re1 Be4 15.Bf4 Bd6 16.c4 Qf5 17.Bxd6 cxd6 18.d5 Bxf3 19.Bxf3 Ne5 20.Be4 Qg5 21.g3 Nd7 22.Qd4= Mason-Van Kemenade,GBR ch Great Yarmouth, 2007; draw agreed 10.h3 Bf5 11.a3 Nc6 12.Nc3 dxc4 13.Bxc4 Nxc3 14.bxc3 Bf6 15.Bf4 Qd7 16.Qd2 Rfe8 17.Rfe1 Na5 18.Ba2 Be4 Hewitt-Iolo Jones,WCPL 2015, 1/2-1/2 10...Nxc3 10...Bf5 main, when 11.a3 Nxc3 12.bxc3 Nc6 13.cxd5 Qxd5 transposes back to Mason-Van Kemenade above. In the line played Wh has gained by not having to play a3, but then in the other line there are later possibilities for Wh to play Ra2 bringing this R to the e file ( an idea that Wh wished was available later in this game) 11.bxc3 Nc6 12.Re1 12.cxd5 12.Bf4 12.Rb1 main lines 12...Bf5 13.cxd5 13.c5 Bf6 14.Bf4 a6 15.Bd3 Be6 16.Qc2 g6 17.Rab1 Rb8 18.Rb2 Re8 19.Qb1 Qc8 20.h4 Raphael-Sears, De Verteuil Memorial, Port of Spain 2010,1-0 13...Qxd5 14.Bf4 14.Bd3 main, transposes to 70 games 14...Bf6 14...Rac8 15.Nd2 Belikov-Shtyrenko, Alushta op 2013, draw agreed 14...Bd6 15.Nd2 15.Bxc7 Rac8 16.Bg3 Na5 17.Ne5 Rxc3 18.Bf3 Qd8 19.d5± KomodoDragon2 15.Qb3 possible with the pawn on a2 Qxb3 15...Be6 16.Qb1 16.Qxb7 Nxd4= 16...h6 17.h3± 16.axb3 Ne7 16...Rfc8 17.Nd2 Ne7 18.Bf3 c6 19.Nc4+- 17.Bxc7 Rfc8 18.Bd6 Rxc3 19.Bc4 b5 20.Bf1 Nd5 21.Rxa7 Rd8 22.b4 Be6 23.Bc5± KomodoDragon2 15...Qa5 15...Qd7 16.Qc1 16.Qb3 Ne7 17.Nc4+- Stockfish10 & KomodoDragon2 16...Bg6 17.a4 17.Nc4 Qf5 18.Bxc7 Rac8 19.Qf4 Ne7 20.Qg3 Qd5 21.Ne3 Qd7 22.Be5 Bxe5 23.Qxe5 Rxc3 24.d5+- KomodoDragon2 17...Qf5 17...Bg5 18.Be3 18.Bg3 h5 19.Qd1 Rfe8 20.Nc4 Re7 21.Ne3 Qa5 22.h4± KomodoDragon2 18...Na5= 19.Qb2 b6 20.Qb5 c6 21.Qb4 21.Qxf5 Bxf5= 21...Rfe8 22.Rac1 Rad8 22...Be7 initial idea 23.Qb2 Qf6 24.Nf3 Qd6∞ KomodoDragon2 23.h3 h5 23...c5 24.Qb5= 24.dxc5 Rxe3 25.fxe3 Rxd2 26.cxb6 axb6 27.Qxb6 h5-+ looked at by Bl, but concerned about back rank 24...cxd4 25.cxd4 h6= KomodoDragon2 24.Bf3 c5 24...Be7 25.dxc5 Rxe3 26.Rxe3 Rxd2 27.cxb6 27.Re8+ 27...axb6 28.Qxb6 Nc4 28...Kh7 29.Qb8+ 29.Re8+ Kh7 30.Qb8 Kh6 31.Rce1= KomodoDragon2 29...Rd8 30.Re8+ Rxe8 31.Qxe8+ Kh7 32.Qb5 32.Qe2 Ne5 32...Qf4-+ 33.Rd1 Be5 34.Qd5 Qh2+ 35.Kf1 Nb2 36.Rd2 Bxc3 36...Nxa4! 37.g3 Bxc3 38.Re2 Bf6-+ KomodoDragon2 36...Qh1+ 37.Ke2 Qb1 38.Be4 Bxe4 39.Qxe5 Bd3+ 40.Kf3 Nc4 41.Qxh5+ Kg8 42.Qg5 Qb7+ 43.Kg3 Qc7+ 44.Kh4 Ne5-+ KomodoDragon2 37.Bxh5 Bxd2 37...Bb1 keeps g6 covered while the R has nowhere to go 38.Rxb2 38.Bxf7 Bxd2 39.Qxd2 39.Qh5+ Bh6 39...Bd3+ 38...Qh1+ 39.Ke2 Qe1+ 40.Kf3 Bxb2 41.Bxf7 g6 42.Bg8+ Kh6-+ KomodoDragon2 38.Bxg6+ fxg6 38...Kxg6 exposes the Bl K 39.Qxd2 Qh1+ 39...Qe5 40.a5 Qb5+ 41.Kg1 Nc4 42.Qd3+ Kh6 43.g4= 39...Nxa4 40.Qc2+ 40.Ke2 Qb1 41.a5 Nc4 42.Qd5= KomodoDragon2 39.Qxd2 Qh1+ 39...Qe5 original idea 40.Qb4= KomodoDragon2 40.Ke2 Nxa4 40...Qb1 41.Qd4 41.a5 Qe4+ 42.Kf1 Nc4 43.Qa2 Qe6 44.Qa1 44.a6 Ne3+ 44...Qa6-+ 41...Qc2+ 42.Ke3 Nc4+ 42...Nxa4 43.Qh4+ Kg8 44.Qd8+= 43.Kf3 Qb3+ 44.Ke2 Qxa4 45.Qh4+ Kg8 46.Qd8+ Kf7 47.Qd5+ Ke7 48.Kd3 Na3 KomodoDragon2, is a tricky ending for both human players 41.Qd4 Bl missed that the Q move covers a1 as well Qxg2 42.Qxa4 Qxh3= 43.Qd4 Qf5 44.Kf1 g5 45.Kg2 g4 46.Qe3 g5 47.Qc3 Kg6 48.Qc6+ Qf6 49.Qc2+ 49.Qxf6+ Kxf6 50.Kg3 Kf5 51.Kh2 Kf4 52.Kg2= 49...Kh5 50.Qh7+ Qh6 51.Qf7+ Qg6 52.Qd5 Qf6 53.Qe4 Qg6 54.Qd5 Kh4 55.Kf1 g3 55...Qa6+ 56.Kg2 Qe2 57.Qf5= 56.fxg3+ Kxg3 57.Qg2+ Kf4 58.Qd2+ Ke5 59.Qc3+ Ke6 60.Qc6+ Kf7 61.Qd7+ Kg8 62.Kg1 Qg7 63.Qe8+ Kh7 64.Qh5+ Kg8 65.Qe8+ Kh7 66.Qh5+ Kg8 67.Qe8+ Normal ½–½
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WhiteEloWBlackEloBRes
Hewitt,W2093Van Kemenade,R1999½–½
Francis,M1648Pleasants,A20880–1
Garcia,J2076Van Kemenade,J16411–0
Gunn,T1398Miga,T18150–1

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