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Wednesday 11 November 2015

(C)andy Crush

Notes to my game from last night.  By move 15 I am completely winning but it is really enjoyable to play such positions and some of the variations are quite pretty.  Kudos to Andy who allowed me to demonstrate the checkmate at the end of the game.




(840) Longson,Alex (221) - Reeve,Andy (192) [B07]
Stockport League, 11.11.2015
[Longson]

1.e4 d6 2.d4 Nf6 3.Nc3 c6 4.Nf3 Bg4 5.h3 Bh5 6.Qe2 Bg6!? 7.Bg5 [7.Nh4]

7...Qa5 8.0–0–0 d5? [8...e5 Andy was taking ages on his 8th move and though I had plenty of time to decide what to do against 8...e5 I still wasn't really sure 9.dxe5 dxe5 10.Nd2 finally we came to this in the post mortem which seemed to us the most promising 10...Nbd7 11.Nc4 Qc7 12.f4 b5 (12...exf4 13.e5 Nd5 14.Nd6+ Bxd6 15.exd6++–) 13.Nxe5 Nxe5 14.Nxb5 (lovely suggestion from Alan Smith) 14...cxb5 15.fxe5 Qxe5 (15...Nd7 16.e6 (I want my bishop to capture on b5 so this creates a way to bring the queen to g4 with tempo) 16...fxe6 17.Qg4 Kf7 18.Bxb5 Ne5 (18...Nc5 the computers defence) 19.Rhf1+ Kg8 20.Qxe6+ Bf7 21.Rxf7 Nxf7 22.Rd7 is how we concluded the post mortem) 16.Qxb5+ Qxb5 17.Bxb5+ Ke7 18.e5+–]

9.Bxf6 dxe4 [9...exf6 10.exd5++–; 9...gxf6 10.exd5 cxd5 11.Qb5+ Qxb5 12.Bxb5+ Nc6 13.Nxd5±]

10.Nxe4 [10.Ne5 gxf6 11.Nxg6 hxg6 12.Qxe4 f5]

10...Bxe4 [10...gxf6! I think we both underestimated this 11.Kb1! (11.Nd6+ Kd7 12.Nxb7 Qxa2; 11.Nxf6+ Kd8 12.d5 exf6 13.dxc6+ Kc7 14.cxb7 Kxb7) 11...Bxe4 (11...Nd7 12.Nd6+ Kd8 13.Nxb7+) 12.Qxe4 which is the same as the game except white has played Kb1 instead of Bc4.  This favours black but the position is still much better for white 12...Qd5; 10...Qxa2 I was slightly more concerned about this than the game move but only because it had the potential to be more messy.  However white can coordinate quite easily with Qe3 and Bd3 11.Be5 Qa1+ 12.Kd2 Qxb2 13.Qe3 e6 14.Bd3 Bb4+ 15.Ke2+–]

11.Qxe4 gxf6 [Apparently Andy reached this position in his calculations on move 8 and thought black was OK - in which case he has seriously mis evaluated the position as I thought white was virtually winning here with much better development and blacks king will not be safe]

12.Bc4 e6? [12...Nd7 13.Rhe1 Nb6 is more stubborn though white is still dominating the position]

13.d5 [13.Bxe6 fxe6 (13...Bh6+ I think Andy was going to play this which is a bit ridiculous as well 14.Kb1 0–0 15.Bf5+–) 14.Qxe6+ Be7 15.Rhe1 Qc7 16.Nh4 also looked very strong to me but I decided I didn't need to sacrifice pieces to win 16...Qd7 (16...Rf8 17.Nf5 Rf7 18.Nd6++–; 16...Kd8 17.d5 Qf4+ 18.Kb1 Qxh4 19.Qxe7+ Kc8 20.d6 Na6 21.d7+ Kc7 22.d8Q#) 17.Nf5 Qxe6 18.Rxe6+–]

13...cxd5 [13...e5 14.Nxe5; 13...f5 14.Qe5]

14.Bxd5 Nd7 15.Bxe6 Ne5 [15...Nc5 16.Bd7+ Kd8 17.Qe8+ is the prosaic solution (17.Bf5+ Kc7 18.Qf4+ Kb6 (18...Kc6 is a touch more stubborn though still clearly hopeless) 19.Rd6+! Bxd6 20.Qxd6+ Kb5 21.Nd4+ I calculated this far and assumed there must be a mate somewhere (21.Bd7+ is quicker 21...Nxd7 22.Nd4+ Kc4 23.b3+ Kc3 24.Ne2#) ) 17...Kc7 18.Qxf7 Covers a2 and wins]

16.Bd7+ [16.Qxb7 Bh6+ 17.Kb1 0–0 is blacks idea]

16...Ke7 17.Nxe5 fxe5 [17...Qxe5 18.Qb4+ Kd8 19.Qxb7 Rb8 20.Ba4+ Bd6 21.Qd7#]

18.Rd5 Qc7 19.Rhd1 [19.Rxe5+ Kxd7 20.Qf5+ Kc6 21.Qf3+ Kd7 (21...Kb6 22.Qb3+) 22.Qxf7++–]

19...f6 [19...Bg7 20.Qb4+ Kf6 (20...Kd8 21.Be6+ Ke8 22.Rd7+–) 21.Rd6+ Kg5 22.Qg4#; 19...Bh6+ is probably the most stubborn but of course hopeless 20.Kb1 Kf8 21.Bg4 Bg5 22.Rd7 Qc6 23.Qxe5 Qf6]

20.Bg4 Bh6+ 21.Kb1 Qc6 [21...Qb6 22.Rd7+ Kf8 23.Qd5+–]

22.Qb4+ Kf7 [22...Ke8 23.Bh5#]

23.Rd7+ Kg6 [23...Kg8 24.Qb3+ Kf8 25.Qf7#]

24.Bf5+ Kxf5 25.Qg4# [a satisfying crush !!]

1–0

1 comment:

  1. I can think of no other adjective to describe this game than Keresian. It's well worth taking the time to play through - just look at the position after 12Bc4.

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