Annotated Game #25: English (Irregular); playing on while down material

This second-round game followed Annotated Game #24 and was against a Class D player.  The opening started off in an irregular fashion on move 4 with ..Bd6, although White cannot usually immediately punish these types of positional errors in the English.  In this case it led to a loss of tempo by Black, which White could have exploited better on move 8 with more active play; this was one of the useful points found in analysis that will help inform my future play.  White also could have played more actively on move 10, seizing the outpost on d5 for his knight, which is a key theme in the English.

My opponent goes astray with moves 10 and 11, where he evidently thought he could get in the central break ..d5.  A tactical point instead allows White to win a piece and then work on consolidating his advantage.  In Class-level games, however, a piece advantage in and of itself is not an automatic win, especially if there is no glaring weakness in the position of the player who is down material.  This point was made in Dan Heisman's ChessCafe article "When You're Winning, It's a Whole Different Game".  By coincidence, I happened to read this just before analyzing the game, which illustrates the point nicely - I missed at least one neat way to wrap up the game (see move 31) and on move 32 missed a pinning tactic that gave back the piece.  Luckily when the dust cleared I was still up two pawns in a winning endgame and went on to convert the point with careful play.

The overall lesson here is to not put the brain on automatic in the opening (instead look for more active play and to exploit opportunities, even in familiar setups), nor when winning and up material where there is still play left in the position.

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Move	N	Result	Elo	Players

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A25: English Opening vs King's Indian with ...Nc6 but without early d3 1.c4 e5 2.Nc3 Nc6 3.g3 Nf6 not the usual move after choosing the Closed English setup with ..Nc6, as it blocks a potential f5 advance. This however invites White to transpose to the main line 4. g3 variation of the English Four Knights following Nf3. 4.Bg2 Bd6N blocks the d-pawn and effectively loses a tempo. Bc5 and Bb4 appear the most in the database. 5.d3 Secures e4, notes Fritz. h6 Covers g5, as Fritz also notes. Here ..h6 is not a significant weakening move, as it can be in King Pawn openings, since White is not in a position to launch a kingside attack. 6.Nf3 0-0 7.0-0 Bc5 Black decides to unblock the d-pawn after all. 8.Nd2 8.Nxe5 Nxe5 9.d4 Bxd4 10.Qxd4 is a sequence preferred by the engines. Houdini gives it approximately +0.5 for White, who has a lead in development, central control and an active queen. 8...d6= 9.Nde4 Bb6 9...Nxe4 10.Nxe4 Bb6 would trade off one of White's central knights and keep things equal. 10.Rb1 10.Nxf6+ Qxf6 11.Nd5 would be a more active way to play, giving White the excellent outpost on d5. 10...Nb4 simply a waste of time, as no threats are generated. 11.a3 d5?? an inaccurate counterattack, as the Ne4 now moves with tempo, leaving the Nb4 en prise. 11...Nxe4 this is the best way to fight back, says Fritz. 12.Nxe4 Nc6 and White will now have some momentum for queenside expansion, but nothing material. 12.Nxf6+ Qxf6 13.axb4 a5 at a higher level, being down a piece with no compensation would be cause for resignation. Here my opponent chooses to fight on and I respect that. 14.Nxd5 Qd8 15.c5 Here simplifying down and developing is probably the quicker way to victory. 15.Nxb6 cxb6 16.Bd2 15...Ba7 16.bxa5 Bxc5 17.b4 Bd6 18.Be3 Ra6 19.Qc2 c6 20.Nb6 Bf5 21.Bc5 g6 this only weakens h6, which could be exploited by a future Qd2. 22.Rfc1 Houdini finds the following sequence: 22.b5 Rxa5 23.Nc4 not 23.Bxd6 Qxd6 24.Nc4 Qc5 23...Bxc5 24.Nxa5 Qxa5 25.Qxc5 22...Be6 23.Nc4 Bxc5 24.bxc5 Qc7 24...Bxc4 would have exchanged off this soon-to-be-dominant central knight. 25.Nd6 Rb8 26.Qc3 Rxa5 27.Rxb7 this is made possible by the deflection theme present, with the queen being unable to cover both b7 and the Ra5 at the same time. 27.Bxc6 is also possible, due to the same tactical theme. 27...Rxb7 28.Nxb7 Rb5 29.Nd6 Rb8 30.Qxe5 Qa5 31.Nc4 31.Nxf7! would have won without much further trouble, due to the discovered attack on the Rb8. Kxf7 32.Qxb8 31...Qb5 32.Nb6?? this is exactly why it's not necessarily a bad decision to play on when down material, as the player who is up material may miss an equivalent tactic. 32.Bxc6 would have taken advantage of the continuing deflection theme threat of Qe5xb8. Qb4 33.Nd6+- 32...Rxb6 33.Be4 the c-pawn is pinned, as the Qe5 is undefended 33.cxb6 Qxe5 33...Qb2 the engines agree with the decision to exchange queens here, which is in this position apparently best for both sides. White's more active queen and Black's airy king position make the trade good for Black, while White now cannot let the Black queen run rampant on the second rank. 34.Qxb2 Rxb2 35.Bxc6 Rxe2 now that the dust has settled after the move 32 blunder, White is still winning handily, although must now work much harder for it. 36.Be4 a rather silly move that wastes a tempo. Bf3 or Rd1 would be more to the point. f5 37.Kf1 Rd2 38.Ke1 Rb2 39.Bg2 Kf8 40.d4 Ke8 41.d5 now that White has his pieces behind the connected passed pawns, they look unstoppable. Bc8 42.Rd1 42.d6 and White can already relax, says Fritz. Kd8 43.c6 Ra2+- 44.Rb1 42...Kd7 42...Ba6 puts up more resistance. 43.Bf3+- Rb3 43.d6 Bb7 44.c6+! the sacrifice allows the breaktrough of the d-pawn. Bxc6 45.Bxc6+ Kd8 not 45...Kxc6 46.d7 Rb8 47.d8Q 46.Ra1 Rb8 47.Kd2 I chose here to activate the king and march it down to assist the pawn. Black's rook can do nothing to bar its way, since it can't be away from the 8th rank for long due to the back-rank mate threat of Ra8. Houdini here finds a mate in 12 starting with Ra7. Rc8 48.Ra6 g5 49.Ke3 h5 50.Kd4 h4 51.Ke5 hxg3 52.hxg3 f4 53.gxf4 53.Ke6 f3 54.Bd7 Rb8 55.Ra5 g4 56.Rh5 Rb1 57.Rh8# 53...g4 54.f5 Rb8 55.Ke6 g3 56.fxg3 56.Ra7 gxf2 57.Rg7 f1Q 58.Rg8# 56...Rc8 57.Ra8 Rxa8 58.Bxa8 now it's a bit ridiculous for my opponent to play for stalemate with three pawns on the board and plenty of space for his king, but he soon realizes this. Ke8 59.d7+ Kd8 60.f6 60.f6 Kc7 61.f7 Kb6 62.d8Q+ Kb5 63.f8Q Kc4 64.Qd5+ Kc3 65.Qa3+ Kc2 66.Qdd3# 1–0

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White	EloW	Black	EloB	Res	ECO	Rnd

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Class D

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1–0

A25

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