Saturday, 15 December 2018

Christmas Break

Aberystwyth Chess Club is taking a break over Christmas and will resume on Tuesday 8 January. The last meeting of the year was a quiet one. Ian Finlay bounced back from his narrow defeat in the town versus gown match, winning a close game in the club championship when Dan Hardman's slip allowed him to break through in the centre with a mating attack. I lost a friendly game against Rudy, missing a chance to draw in the rook and pawn ending, which was not easy to see after being positionally strangled for 90-odd moves.

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MoveNResultElo
1.e41,161,23254%2421
1.d4943,61155%2434
1.Nf3280,29556%2441
1.c4181,39556%2442
1.g319,64956%2427
1.b314,14254%2427
1.f45,86848%2376
1.Nc33,74951%2385
1.b41,73548%2378
1.a31,18753%2403
1.e31,06348%2408
1.d394050%2378
1.g465846%2359
1.h444152%2372
1.c341951%2423
1.h327756%2416
1.a410659%2469
1.Nh38866%2510
1.f38745%2429
1.Na34063%2477
1.d4 Nf6 2.c4 c5 3.Nf3 e6 4.e3 4.d5 4.Nc3 main lines 4...b6 4...d5 main 5.Bd3 5.Nc3 5...Bb7 6.0-0 cxd4 6...Be7 7.exd4 Be7 8.Nc3 0-0 8...d5 main 9.Re1 9.d5 main, as Wh has a Bxh7ch should Bl take the pawn on d5 9...d5 10.cxd5 10.Bg5 alternative 10...Nxd5 11.Nxd5 11.a3 11.Ne5 main lines 11...Bxd5 11...Qxd5 trasposes to several more games 12.Be4 Qd7 12.Be3 a bit passive, blocking the important e file , where the Wh pieces need to be as compensation for the isolated pawn.There is no real threat to the d pawn anyway 12.Bf4 endorsed by Komodo12 Nc6 12...Bxf3 13.Qxf3 Nd7 14.Qh3 Nf6 15.Be5± 13.Rc1 13.a3 Rc8 14.Rc1 13...Nb4 13...Bxf3 14.Qxf3 Nxd4 15.Qe4 f5 16.Qe3 Bc5 17.Bc4 Komodo12, rather like the game later on. 14.a3 Nxd3 15.Qxd3= 12.Be4 Nc6 12...Bxe4 Komodo12 13.Bxd5 Qxd5 14.Be3 Bf6 15.Qd2 Rfd8 16.b3 Nxd4 Rosmann-Rabenstein, Mittelfranken ch tm 2012,0-1 12.Ne5 Nd7 transposes to 12 games, eg 13.Qh5 f5 14.Bf4 Nxe5 15.Bxe5 Bf6 16.Re3 Muse-Kiselev, Berliner Sommer 1994,1/2-1/2 12...Nc6 13.Ne5 Bd6 a slight error that Wh could have seized upon 13...Rc8 14.a3 f5 15.Nxc6 Rxc6 16.Qd2 Rf6 17.Rac1 Rg6 18.Bf1 Bd6 19.g3= Komodo12 14.Qh5 14.Nxc6 Bxc6 15.Bxh7+ Kxh7 16.Qc2+ Kg8 17.Qxc6 its not the pawn so much as the slight weakening of Bl's K position. Though Wh is left with an inferior B 14...f5 gains space on the K side, but leaves e6 potentially weak 14...g6 15.Nxc6 Bxc6 16.Qh6 Qf6= 15.Bg5 15.Nxc6 Komodo112 Bxc6 16.Bc4 16.Bg5 Qd7 17.Bc4 Be4= 16...Qe8 17.Qxe8 Rfxe8 18.Rac1 Kf7= both sides have a weak pawn to nurture 15...Qe8 simplest 15...Nxe5 16.Bxd8 Nxd3 17.Bg5 17.Red1 Nf4-+ 17...Nxe1 18.Rxe1 Rac8= Komodo12, but few humans would go down this track, even though the B on d5 is very powerful 16.Qh3 16.Qh4 guards the d pawn, but Nb4 17.a3 17.Bb1 Rc8 18.a3 Nc2 19.Bxc2 Rxc2 17...Nxd3 18.Nxd3 Qg6 19.f3 Rac8 19...Bxf3 20.gxf3 h6 21.f4 hxg5 22.Qxg5 Qxg5+ 23.fxg5 Kf7= 16.Qxe8 Komodo12 Rfxe8 17.Bb5 Bxe5 18.dxe5 h6 19.Bf4= 16...Nxd4 Wh retains attacking chances, but Bl's centre should hold firm & be an advantage in an endgame 17.Nc4 Be7 17...Bb4 Komodo12 18.Red1 e5 looks good, but the centre is in danger of overextending 19.a3 Bc5 19...Be7 20.Be3 e4 21.Bf1 Nc2 22.Rxd5 Nxa1 23.Bf4= Wh has lost an exchange, but has very active pieces Rd8 24.Rxd8 24.Rxf5 Rxf5 25.Qxf5 Qg6 26.Qe5 Qf6 26...Bf6 27.Qb5 looks better Nc2 27.Qxe4 Rd4 28.Qa8+ Qf8 29.Qxf8+ Kxf8 30.Bb8 Rd7 24...Qxd8 25.Ne5 Qd1 humans would be worried about this possibility 26.Qc3 g5 27.Nc6 Bf6 28.Be5 and only now does Komodo12 decide that the whole variation is unsound & not drawn! Nb3!-+ 29.Qc4+ Kg7 30.Qe6 Nd2 31.Bxf6+ Rxf6 32.Qe7+ Kg8 33.Qd8+ Rf8 34.Qd5+ Kg7 35.Qb5 Qxf1+ 36.Qxf1 Nxf1 37.Kxf1 Rc8-+ 20.b4 Qe6 21.Ne3 Bd6 22.Nxd5 Qxd5 23.Bxf5 17...Qg6 18.Qe3 Bc7 19.Qxd4 Qxg5 20.Ne3 Bb7 21.Qd7 Qf4 22.Qxe6+ Kh8 23.Nf1 Rad8 Komodo12- relying on Bl piece activity & the 2 powerful Bs 18.Bf4 Nc6 retreating a wellplaced N. If control over e5 was wanted then 18...Bf6 seems better 19.Re3 19.Ne3 eliminates the pesky B Nb4 20.Nxd5 Nxd5 21.Be5 Rd8 but replaces it with a N 19...Rf6 Bl defends against the R attack, but the Wh pices are a little tangled at the moment, so 19...Nb4 20.Ne5 20.Nd6 Qd7-+ 20...Bf6 21.a3 Nxd3 22.Rxd3 Rd8 23.Re1 Qe7 Komodo12 20.Rae1 20.Rg3 20...Rg6 21.Rg3 Rxg3 22.Qxg3 Qf8 22...Qg6 23.b3 Bc5 23...Nb4 24.Bb1 Rd8 25.h4 Na6 26.Ne5 Bf6 27.Bg5 Nc5 Komodo12 24.Ne3 Bxe3 25.Bxe3 25.Qxe3 25...Qb4 25...e5 again a pawn advance seems called for- but then the centre comes under fire 26.Bd2 Rd8 27.Bc3 Rd6 28.Qh3 Rg6 29.Bf1 f4 29...e4 30.Rd1= 30.Bxe5 Nxe5 31.Rxe5 Bxg2 32.Bxg2 f3 33.Re3 fxg2 34.Qf3 Qxf3 35.Rxf3= Komodo12 26.f3?! weakens the K side 26.Rc1 26...Rf8 26...f4 Komodo12 27.Bxf4 Qd4+ 28.Re3 28.Kh1 Qxd3-+ 28...Nb4 29.Bb1 29.Bf1 Nc2-+ 29...Rf8 30.Bg5 h6 31.Bxh6 Rc8 32.Kf1 Bb7 32...Rc1+ 33.Re1 Rxb1 34.Rxb1 Qd3+ 35.Kf2 Qc2+ 36.Ke3 Qd3+ 37.Kf2 Qc2+ repetition 33.Qxg7+ Qxg7 34.Bxg7 Rc1+ 35.Re1 Rxe1+ 36.Kxe1 Kxg7 Komodo121 27.Bh6 27.Qf2 e5 28.Rd1 Be6 29.Qc2 Ne7 30.Bf2 Rd8 Komodo12 27...Qd4+-+ 28.Kh1 Qf6 28...Kh8 leaves both Bs hanging 29.Bxf5 Rxf5 30.Be3 Qb2-+ Komodo12 28...f4 29.Qg5 Kh8 likewise 28...Rf7 29.Bb1 f4 30.Qg5 30.Qg4 Ne5 31.Qh5 Nd3-+ 30...Qc3 31.Rf1 Kf8 32.Bxh7 gxh6 33.Qxh6+ Qg7-+ Komodo12 29.Bd2 29.Bf4 29...e5 29...Qd4-+ Komodo12 30.f4 Rd8 30...Qb2 31.Rd1 Rd8 32.Bf1 Qxa2-+ 31.Rc1 Qxd3 32.Qxd3 Bxg2+ 33.Kxg2 Rxd3 34.Rxc6 Rxd2+ 35.Kg3 Rxa2 36.Rxe6 Rb2-+ 30.Bc3 Nd8? Bl got tangled up in calculations & at one point touched his N before reconsidering 30...Rd8 31.Qh3 31.Bxe5 Nxe5 32.Rxe5 Bxb3 33.axb3 Rxd3 34.h3 Rd1+ 34...Rxb3 35.Re1 Rxe1+ 36.Qxe1 h6 31...g6 32.f4 Qe7 33.fxe5 Be6 34.Bb5 Nb4 Komodo12 30...f4 31.Qh3 h6 30...Nd4 31.Qxe5 Qxe5 32.Rxe5 Bf7 33.Kg1± 33.Bxd4 Rd8 34.Bxb6 axb6 35.Bf1 g6 36.Kg1 Komodo12 31.Bxe5+- Qh6 31...Qf7 32.Bxf5+- 32.Bd6 Rf6 32...f4 last try 33.Qh3 Qxh3 34.gxh3 Bxf3+ 35.Kg1 Bc6 36.Bxf8 36.Bc4+ Nf7 37.Re7 Komodo12 is even stronger 36...Kxf8 37.Bxh7+- KOmodo12 33.Re8+ Kf7 34.Rf8+ Ke6 35.Qe5+ Kd7 36.Bb5+ 36.Qe7+ Kc8 37.Qc7# 37.Rxd8# 36...Kc8 37.Qc3+ 37.Rxd8+ Kxd8 37...Kb7 38.Qxd5# 38.Rb8# 38.Qe8# 37...Kb7 38.Qc7+ 38.Qc7+ Ka8 39.Rxd8# 39.Qc8# 39.Qb8# 1–0
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WhiteEloWBlackEloBRes
Finlay,I1363Hardman,D13061–0
Van Kemenade,R-Francis,M-1–0

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