Steynton B could only field three players against Aberystwyth at the Emlyn Cafe, Tanygroes on Wednesday 11 April, meaning that we needed one and a points to seal the match. On top board, Rudy van Kemenade won a pawn early on against John Miller in a King's Indian and had a dominating position throughout, picking up more material as Black looked vainly for counterplay. I got good pressure in a Sicilian against David Pinch's King's Indian Attack setup, but missed a tactic which won him a pawn. I should still have been OK, but was thrown off my stride by my mistake and blundered to bring the game to a quick conclusion. Dan Hardman, playing his first game for the Club, got a dangerous passed pawn against Gwyn Evans's Sicilian, and Black's attempt at a kingside counterattack only blundered a piece, a good start for the new player against a higher rated opponent. Aberystwyth won the match 3-1 with the default on Board 4.
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| Move | N | Result | Elo |
|---|---|---|---|
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1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 5.f3 Samisch 0-0 6.Be3 e5 7.Nge2 7.d5 Ne8 8.g4 Greatorex-Miller, Dyfed Open 2018,1-0 7...Nc6 8.d5 Ne7 Hurn-Miller, Dyfed Open 2018,0-1 5...0-0 6.h3 the Makogonov system,
which seemed to surprise Bl 6.Be2 more usual 6...Nc6 played quite
often, but possibly incorrect 6...e5 main, also against 6. Be2 6...Nbd7 7.Bg5 h6 disliked by Bronstein in pm analysis & by Kotronias in his theory
book, as it weakens g6 8.Be3 e5 9.d5 Nh5 10.Nd2 a6 11.g3 Qe8 12.Be2 Kh7!? 13.Nb3 Ndf6 14.c5 Bd7 15.Na5 Rb8 16.Nc4 Bb5 leading to a complex
series of sacrifices by Bl & then countersacrifices by Wh 17.cxd6 Bxc4 18.dxc7 Rc8 19.Bxc4 Rxc7 20.Bd3 Nxe4 21.Bxe4 f5 22.Bc2 f4 23.Bb6 fxg3 24.Bxc7 Qf7 25.Bb6 gxf2+ 26.Kd2 Ng3 27.Qg4 Nxh1 28.Rxh1 f1Q 29.Rxf1 Qxf1 30.Qxg6+ Kg8 31.Qh7+ Kf7 32.Bg6+ Ke7 33.Qxg7+ Kd6 34.Qc7# Bronstein-Van
Kemenade, Manchester 1989,1-0 7.Bg5 e5? a mistake, similar to what can
happen in a Bg5 line the Samisch 7...h6 weakens g6 8.Be3 a6 9.Qc2 b5 10.cxb5 axb5 11.Bxb5 Nb4 12.Qd2 c6 13.Be2 Be6 14.a3 Bb3 15.Rc1 Na2 16.Nxa2 Bxa2 17.Bd3 Van Kemenade-Stuttard, Liverpool Fide 2006, 1-0 7...Nd7 8.Qd2 f6 9.Be3 e5 10.d5 Ne7 11.0-0-0 b6 12.g4 Van Kemenade-Jeske, EU
Seniors tm, Wales- Deutschland Frauen, Dresden 2013, 0-1 when Wh overpressed 8.dxe5 8.d5 played by 12 people who missed the tactic, though Ne7
70 % for Wh 8...Nd4 however ! win ! loss 8...dxe5 8...Nxe5 9.Nxe5
leads to the same ; 4-1 9.Qxd8 again 2 players missed this idea Nxd8 9...Rxd8 10.Bxf6 2 draws 10.Nd5! Komodo11; 4-0 10.Bxf6 10.Nxe5 Nxe4 11.Nxe4 Bxe5= Rauleac-Lupu, ROM ch U14, Calimanesti 2000,0-1 10...Bxf6 11.Nd5 Bg7 11...Kg7 12.Nxc7 Rb8 13.Nd5 Re8 14.0-0-0± Lonnee-Sileika,
NED-LTU ICCF email 2016, 0-1 12.Nxc7 Rb8 13.0-0-0 13.Bd3 Ne6 13...Nc6 14.Rd1 b6 15.0-0 Bb7 16.b3 Rbc8 17.Nd5± Bagoly-Vizkeleti, Eger Tel op
2009 , 1-0 14.Nxe6 Bxe6 15.b3 Rfd8 16.Rd1 Rd6 17.Ke2 rated = by
Komodo11; Dobosz-Klocker, AUT ch tm 2007,1-0 13.Rd1 Ne6 14.Nxe6 Bxe6 15.Bd3 Rfd8 16.Ke2 f6 17.b3 Bf8 18.Bc2 Spraggett-Sanchez Jerez, Portugal op,
Oeiras 2015,1-0 - Komodo11 again rates position as = 13...Nc6 13...Ne6 14.Nd5 Nc5 15.Nc3 Komodo11 14.Be2 14.a3 f6 15.b4± Komodo11 14.c5 at once might gain Wh a tempo if f5 as in the game, but Bl has an
alternative in Nd4 15.Nxd4 exd4 16.Kb1 Bd7 17.Bd3 Rfc8 17...Bc6 18.Nd5 Rfe8 18.Nd5 Rxc5 19.b4 Rc6 20.Ne7+ Kf8 21.Nxc6 bxc6 22.a3 c5 23.Rd2± Komodo11 14...f5 15.exf5 15.Nd2 fxe4 16.Nxe4 Bf5 17.f3 Bxe4 18.fxe4 Rf2 19.Bg4 19.Bf3 Nd4= 19...Rxg2 20.Be6+ Kh8 21.Rhf1 Nd4 22.Bd5 Rf8 23.Rxf8+ Bxf8 24.Ne6 Nxe6 25.Bxe6 Bc5 26.Rd7 b6 27.Rxa7 Rg1+=
Komodo11 15...gxf5 15...Bxf5 16.Nd5 Bh6+ 17.Ne3 Be4 18.Rd2 Nd4=
Komodo11 16.c5 16.Ng5 Nd4 17.Rhe1 e4 18.Nd5 Be5 18...h6 19.Ne7+ Kh8 20.Ng6+ Kg8 21.Nxe4 fxe4 22.Nxf8 Kxf8 23.Bg4 Bxg4 24.hxg4 Re8 25.Kb1 Komodo11 19.Kb1 h6 20.f4 Komodo11 16...e4 17.Bc4+ Kh8 18.Ng5 Bh6 the B looks to be on the wrong diagonal here 18...Be5 Komodo11 19.Nce6 Rf6 20.g3 Bxe6 21.Nxe6 Re8 22.Nf4 Bd4 23.Rd2 e3 24.Re2 Bxc5 25.Nd5 Rg6 26.Nxe3 Bxe3+ 27.Rxe3 Rxe3 28.fxe3 Rxg3 29.Rf1 Rxh3 30.Rxf5 Rxe3 31.Rf8+ Kg7 32.Rf7+ Kg6 33.Rxb7= Komodo11, though the long range B cooperates
with the R better than the N does 18...Ne5 expected by Wh 19.Be2 19.Bb5 provoking the next, which becomes a weakness a6 20.Be2 Bf6 21.h4 Be7 22.Rd5 Nc6 23.a3± Komodo11 19...b6= Komodo11 19.h4± Ne5 20.Be2 Bd7 20...Nf7 21.f4 exf3 22.Bxf3 Nxg5 23.hxg5 Bxg5+ 24.Kb1 Be3 25.b4± Komodo11- Bl has reagained the pawn but his pieces are mainly undeveloped,
while the Wh ones survey an open board 21.Rd5 21.Rd6 a strong candidate,
considered- Bl is then virtually forced to give up his Bl squared B Bxg5+ 21...Kg7 22.Rhd1+- a N invasion on e6 is difficult to deal with 22.Kb1 Bxg5 23.hxg5 f4 24.b4± 22.hxg5 Rbc8 23.Nd5 Rxc5+ 24.Kb1 Be8 25.Nf4 Rc6 26.Rd8+- Komodo11 21...Bg7 22.Nce6 22.Nge6 pm analysis Bc6
Komodo11 23.Nxf8 Bxd5 24.Nxd5 Bxf8 25.b4 b6 26.cxb6 axb6 27.Rd1± 22...Bc6 22...Bxe6 23.Nxe6 Rfe8 24.Nxg7 Kxg7 25.Rhd1± Komodo11-looks
better than the game continuation 23.Rd6+- Rfe8 23...Rg8!? 24.Nxg7 Kxg7 25.Rhd1 Rbc8 26.Kb1 26.b4 a6 27.h5+- Komodo11 26.Kd2 Re7 26...e3+ 27.fxe3 Bxg2 28.Rg1 Bc6 29.Kc3 Re7 30.Kd4 Kh8 31.Re6+- 27.Ne6+ Kh8 28.Nf4 Rg8 29.Ke3+- Komodo11 26...h6 still weakens g6 26...Ng4 27.h5 Nf6 28.Ne6+ Kh8 29.Nd8+- 29.Ng5+- Komodo11 27.Ne6+ Kh7 28.Nd8 28.Nd4 Bd7 considered, though Wh is winning after both 29.b4 & 29.f4 exf3 30.gxf3 Rxc5 31.f4 Ba4 32.b3 Nf7 33.Rf6 Kg7 34.Re6 Nd8 35.Rd6 Nf7 36.Ne6+ Kh7 37.Nxc5 Nxd6 38.Bh5+- Komodo11 29...Re7 30.f4 exf3 31.gxf3+- 28.Nf4 is a good post for the N Re7 29.b4 Ng4 30.Bxg4 fxg4 31.Rf6 g3 32.fxg3 e3 33.Rdd6 Rce8 33...e2 34.Rxh6+ Kg8 35.Rdg6+ Kf7 35...Rg7 36.Rxg7+ Kxg7 37.Re6 36.Rh7+ Ke8 37.Rxe7+ Kxe7 38.Re6++- 34.Rxh6+ Kg8 35.Rdg6+ Rg7 36.Rxg7+ Kxg7 37.Re6 Rxe6 38.Nxe6+ Kf6 39.Nd4 Bxg2 40.Kc2+- Komodo11 28...Bd7? based on a miscalculation that Bl would
be able to pick up the N on d8 28...Re7 29.Nxc6 Rxc6 30.R1d5 f4 31.b4 Kg7 32.h5+- as Bl is running out of moves 29.Rxd7++- Kg8 29...Nxd7 30.Rxd7+ Kg6 31.Nxb7+- 30.R7d5 30.Nxb7 seriously considered by Wh, &
marginally best for Komodo11 Nxd7 31.Rxd7 Kf8 32.Rd5 30.R7d6 Rxc5 31.Rxh6+- alternative 30...Rc7 31.Rd6 31.Rxe5 considered for a while as
the Wh pieces get very active Rxe5 32.Bc4+ Kh7 other moves give back an
exchange 33.Ne6 Re7 34.Rd6 looks fine for Wh, who couldn't see much
further, though the Engine feels compelled to give up a R to get rid of the
pesky N Kh8 35.Nf8 31...Ree7 32.Rxh6 Rxc5 33.Ne6 Rc8 33...Rc6 aiming
to win a pinned ,N loses the K instead 34.Rd8+ Re8 34...Kf7 35.Rf8# 35.Rxe8+ Kf7 36.Bh5+ Ng6 37.Rxg6 Rxe6 38.Rgxe6+ Kg7 39.R6e7+ Kf6 40.Rf7#
last variation Komodo11 34.Nf4 34.Rd5! Komodo11, forces the N to move
& wins another pawn 34...Rec7 hoping for some R activity, but all points
are guarded 35.Re6 35.Nd5 Komodo11, considered Rf7 35...Rc2 36.Ne7+ Kg7 37.Nxf5+ Kg8 38.Ne7+ Kg7 39.Nxc8 Rxe2 40.Re6+- 36.Bh5 Rg7 37.Nf6+ Kf8 38.Rh8+ Ke7 39.Nd5+ Kd7 40.Nb6+ Kc7 41.Nxc8 35...Nd3 36.Nxd3 36.Bxd3 exd3 37.Rg6+ Kh8 38.Rd6 Rc2 39.Nxd3 also safe 36...Rc2 36...exd3 37.Bxd3 covers c2 37.Nf4 1–0
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| White | EloW | Black | EloB | Res |
|---|---|---|---|---|
| Van Kemenade,R | 2015 | Miller,J | 1648 | 1–0 |
| Pinch,D | 1623 | Francis,M | 1762 | 1–0 |
| Hardman,D | 1246 | Evans,G | 1429 | 1–0 |
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