Friday, 2 October 2020

3/4 Time

Aberystwyth had another good result in the second round of the Welsh On-line League on Tuesday 29th September when we played De La Beche Rooks. On Board 1 my Stonewall Dutch position was soon invaded by Alan Fisher after I weakened it by exchanging dark-squared bishops. When White missed a mating attack I found myself, much to my surprise, still in the game, but I had used a lot of time and failed to save the draw in the rook ending that followed. James Cook went a pawn down playing the Alapin against Peter Smith's Sicilian, but Black got in a tangle that eventually caused him to drop a piece. The game became very unbalanced as James sought to hold back Black's advancing pawns with his knight, but eventually settled into a draw. Once again, Boards 3 and 4 came up with the goods for Aber. Tom Gunn was in some trouble with his Kan Sicilian against Vaughan Thomas, who had an extra pawn and a better development. But White played too passively, allowing Tom to win back the material and get the upper hand in the ending before eventually winning on time. Sam Holman had arrived at a level middle game position in a Ruy Lopez Steinitz against David Belochkin when his opponent started giving away pieces, after which the win was straightforward. A win to Aber by 2½-½. Our next match will be against the very strong Steynton A team on Tuesday 13th October.

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1.c4 Alan Fisher,1571 e6 A13 English Opening: Agincourt Defense , Matthew Francis 1648 -R 2.g3 f5?! (0.05 ? 0. 95) Inaccuracy. d5 was best. [ I have left in the lichess rather odd comments about openings; my annotations are labelled -R. This one can safely be ignored. Matthew has not previously played the Stonewall Dutch, the Leningrad a couple of times. -R] 2...d5 3.cxd5 exd5 4.Bg2 Nf6 5.Nf3 Be7 6.0-0 0-0 7.a3 3.Bg2 Nf6 4.Nc3 c6 5.Nf3 d5 6.d4 6.cxd5 has been more popular, not that Wh has done very well with it-R 6...Bd6 7.0-0 0-0 8.cxd5 8.Qc2 8.b3 8.Bf4 main lines-R 8...exd5 9.Bg5 Qe8 10.e3 10.Bxf6 main, looks a logical follow-up; though eliminating Bl's e6 pawn helps Bl rather than Wh 10...Ne4 25 % for Wh 10...Nbd7 21.4 % for Wh 11.Bf4 Bxf4?! (0.48 ? 1.23) Inaccuracy. Be7 was best. 11...Be7 1 draw, 2 Bl wins; leaves the f4 B as a target with g5 to come-R 12.h4 h6 13.a4 Nd7 14.Qc2 g5 15.Bc7 Bf6 16.a5 Qh5 17.Rfb1 Re8 18.Ne2 11...Qe7 preferred by Komodo14 MC-R 12.exf4 Nd7 13.Re1 13.Qb3 Komodo14 MC 13...Qf7 13...Qd8 14.Qc2 Re8 15.Ne5 Nxe5 16.fxe5 Nxc3 17.Qxc3 Be6 18.Qd2± Komodo14 MC 14.Rc1 Ndf6 15.Ne5 Qc7 16.a3 16.Na4 Komodo14 MC 16...Qa5 17.f3 Nxc3 18.Rxc3 Bd7 19.Rce3 Wh has an entrenched N on e5, & a possibility of a minority Q side advance.Bl is solid, but has few attacking chances.-R Be8 20.b4 Qd8 21.Qc2 g6 21...Nd7 Komodo14 MC wants to eliminate Wh's best piece-R 22.Nd3 b6 This weakens the Q side. Perhaps Bl's best plan here is to try to get in Nd7-then b5, Nb6, & Nc4 with counterplay 23.Bf1?! (1.84 ? 1.20) Inaccuracy. Ne5 was best. 23.Ne5 a5 23...a5 24.Qb2 Rf7 24...axb4 is the logical consequence of the last move- seeking R activity-R 25.axb4 Rf7 26.Ne5 Rc7 27.Rc1 Qd6 Komodo14 MC 25.Ne5 Rfa7?! (1.65 ? 2.24) Inaccuracy. Rc7 was best. 25...Rc7 26.bxa5 bxa5 27.Qc3 c5 28.dxc5 d4 29.Qc4+ Qd5 30.Qxd5+ Nxd5 31.Bc4 Rxc5 32.Rd3 26.b5 Komodo14 MC considers Wh now winning cxb5 27.Bxb5 Bxb5?! (2.16 ? 3.02) Inaccuracy. Rb8 was best. [Wh is winning in all lines- Komodo14 MC-R] 27...Rb8 28.Rc3 28.Qxb5 Rg7 29.Nc6 Qd6?! (3.71 ? 5.29) Inaccuracy. Qf8 was best. 29...Qf8 30.Qxb6 30.Re6 Qf8 31.Ne7+ Kh8 32.Nxd5 Nxd5?! (4.97 ? 6.98) Inaccuracy. Ng8 was best. [No real difference according to Komodo14 MC-R] 32...Ng8 33.Nxb6 33.Qxd5?? (6.98 ? 2.54) Blunder. Re8 was best.[ Agreed Re8 gives bigger advantage, but Wh's move keeps the win in hand-R] 33.Re8 33...Rd8 34.Qb3 34.Qe5 Komodo14 MC 34...Rgd7 35.Qxb6 Qxa3?? (2.79 ? 13.01) Blunder. a4 was best. 35...a4 36.Qa5 36.Re8+ Rxe8?! (11.42 ? Mate in 3) Checkmate is now unavoidable. Kg7 was best. 36...Kg7 37.Rxd8 Rf7 38.Qe6 Qb4 39.Rd7 Qxe1+ 40.Qxe1 Rxd7 41.Qxa5 Kf7 42.Qc5 h5 43.d5 37.Rxe8+?? (Mate in 3 ? 0.00) Lost forced checkmate sequence. Qf6+ was best. 37.Qf6+ Rg7 38.Rxe8+ Qf8 39.Rxf8# 37...Kg7 38.Qe6 Qa1+ 38...Qd6= 38...Rb7= both Komodo14 MC 39.Kg2 Qxd4= 40.Qg8+ 40.Re7+ Komodo14 MC Rxe7 41.Qxe7+ Kh6 42.Qf8+ Qg7 43.Qa3 Qa7 44.Qf8+ Qg7= 44...Kh5 45.h3+- 40...Kh6 41.Qf8+ Qg7 42.Qa3 Rd2+ 43.Kh3 Qb2 44.Qf8+ Qg7 45.Qxg7+ Kxg7 46.Ra8 Ra2= 46...Rd5= 46...Kf7= 46...Rd3= 46...Kf6= 46...h5= All Komodo14 MC 47.Ra7+ Kh6?! (0.00 ? 0.72) Inaccuracy. Kg8 was best. 47...Kg8 48.g4 fxg4+ 49.fxg4 h6 50.f5 g5 51.Ra6 Kg7 52.Kg3 Ra3+ 53.Kg2 Ra2+ 48.g4 fxg4+ 49.fxg4 g5= 49...Ra3+ 50.Kh4 g5+ 51.fxg5+ Kg6= also, Komodo14 MC , seen by Rudy 50.f5?? (1.70 ? 0.00) Blunder. Ra6+ was best. [Honestly, why a blunder, either way it's still a level position-R] 50.Ra6+ Kg7 51.fxg5 Ra3+ 52.Kh4 Ra2 53.h3 Ra3 54.Ra8 Kf7 55.Rc8 Rd3 56.Rh8 Kg7 assessed as = by Komodo14 MC 50...a4= 50...Rc2 51.Rxa5 Rc3+ 52.Kg2 Rc2+ holds comforably- Komodo14 MC/ perpetual or Wh loses pawns on the K side-R 51.Kg3 Ra3+ 52.Kf2 Ra2+ 53.Ke3 Rxh2 54.Rxa4 Rh3+ 54...Rb2= looks safest -R 55.Kd4 Rf3 55...Rb3 safer, -R 56.Ke5 Kg7 57.Ra7+ Kg8?? (0.00 ? 154.14) Blunder. Kh6 was best. A losing move, so this is a blunder 57...Kh6= 58.Kf6 Rb3 59.Rd7 Rb6+ 60.Ke5 Rb5+ 61.Kd6 Rb6+ 62.Kd5 Rb4 63.Ke6 Rxg4 64.f6 Stockfish10 stops here Re4+ 65.Kf7 Rf4 66.Ke6 Re4+= Komodo14 MC 58.Kf6 mating net-R h5 59.Kxg5 59.Kg6! Komodo14 MC Kf8 60.gxh5 60.f6 60...Rb3 61.h6 Rb6+ 62.f6 Bl's g pawn is too slow 59...hxg4?! (59.33 ? Mate in 27) Checkmate is now unavoidable. Kf8 was best. 59...Kf8 60.f6 h4 61.Kg6 and Bl has to give up the R-R 60.Kxg4?? (Mate in 27 ? 0.00) Lost forced checkmate sequence. Kg6 was best. [This is now a book draw as the Bl K, although on the back rank, is in front of the pawn-Nalimov tablebases will play this perfectly- R] 60.Kg6 Kf8 61.f6 Ke8 62.f7+ Kf8 63.Ra8+ Ke7 64.Re8+ Kd6 65.f8Q+ Rxf8 66.Rxf8 Ke5 60...Rf1 60...Rb3 the simplest is that the R will cover the third rank(which prevents the Wh K from getting there), then when the pawn goes to f6, the R goes to the rear & keeps checking the K, which has no place to hide.-R 61.Kg5 Rg1+ 62.Kf6 still a draw, but Bl needs to be more careful now-R Rf1 63.Rg7+ Kf8 64.Rc7 Ke8?? (0.11 ? 65.56) Blunder. Kg8 was best. 64...Kg8 Bl needs to go to the short side of the pawn, so that the Wh R has less space to operate in-R 65.Rg7+ Kf8 66.Ra7 Kg8 67.Ra8+ Kh7 68.Re8 Rb1 69.Re2 Kg8 70.Re6 Rb2 71.Re8+ 65.Rc5 65.Ra7 is the simplest way to win, it forces the Bl K away from the pawn, so that Wh can then get the Lucena position (building a cover for the K after the pawn is forced to f7)-R 65...Rf2 65...Ra1 is worth a try, keeping behind the Wh pawn should be a dead end-R 66.Ke6?? (65.10 ? 0.11) Blunder. Rc8+ was best. 66.Rc8+ 66...Kf8 and its = again-R 67.Rc4 Re2+ 68.Kf6 Ke8?? (0.57 ? 63.43) Blunder. Kg8 was best. 68...Kg8= only move-R 69.Rc8+ Kd7 70.Rf8 other R moves look better, as they don't occupy the square the pawn needs to get to, but Wh can afford the loss of time-R Rf2?? (3.48 ? 66.97) Blunder. Kd6 was best. 70...Kd6 71.Rd8+ [but Wh is still winning-R] 71.Kg7 Rg2+ 72.Kf7 Rf2 73.f6 Rg2 74.Ra8 74.Rg8 even better-R 74...Rg3 75.Kf8 Ke6 76.Ra6+?? (66.33 ? 3.28) Blunder. f7 was best.[it really doesn't matter-R] 76.f7 76...Kd7 77.f7 Rg4 78.Ra3 Rf4?! (12.78 ? Mate in 23) Checkmate is now unavoidable. Rg2 was best. 78...Rg2 79.Rd3+ 79.Rd3+ 79.Rg3 quickest, but there are several ways-R 79...Ke6 80.Ke8 Rxf7 81.Re3+ Kf6 82.Rf3+ Normal Black resigns. 1–0
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WhiteEloWBlackEloBRes
Alan Fisher1571Matthew Francis16481–0
James Cook1476Peter Smith1485½–½
Vaughan Thomas1217Tom Gunn13980–1
Sam Holman1386David Belochkin10001–0

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