Mystery game #117: Instructive trap in King's Indian Defense, Petrosian Var.

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  • Mystery game #117: Instructive trap in King's Indian Defense, Petrosian Var.

    Here is the text of an interesting game. You can discuss the game, variations, player strengths, era, setting, time controls, etc. I will supply all data in a few days. Enjoy!!

    1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 a5 8.h3 Na6 9.Be3 Nd7 10.Qd2 f5 11.Bh6 Nf6 12.Bxg7 Kxg7 13.Bd3 Nc5 14.Qc2 Nxd3+ 15.Qxd3 fxe4 16.Nxe4 Bf5 17.Nfd2 Nxe4 18.Nxe4 Qh4 19.g4 Bxe4 20.Qxe4 Qxf2+ 21.Kd1 Rf4 22.Qe1 Rd4+ 23.Kc1 Rxc4+, 0-1.

  • #2
    David Cohen (2043) -- NM Graham Allen (2216), Kingston Open 1999 (4). Played 1999-02-14. King's Indian Defense, Classical / Petrosian, E9. Time controls 30/90', SD/60'. TD: Frank Dixon, Organizers: Dr. Jim Cairns, Rob Hutchison.

    It's a very attractive miniature! This trappy outcome, resulting from Black's tactical alertness, was essentially the result of White's failure to castle. White's 8.h3 prevents Black's bishop sortie with ...Bg4, a useful idea since Black gets cramped for space, and trading that piece on f3 could be useful. White's idea also stops a possible future ...Ng4 sally, which would attack a B/e3. It also looks ahead to lines when he advances his QB to g5, then retreats it back, if Black chases by advancing his kingside pawns; it would then have a secure retreat on h2. White then moves to exchange dark bishops with 11.Bh6; this is taking time!! Black takes advantage with very precise and sharp play; he gets in the key move 10...f7-f5! He counterattacks in the centre by hitting e4 and d3. The key is the double attack 18...Qh4!!, hitting both f2 and the N/e4; this wins, exploiting White's King safety issues. Interestingly, GM Robert Fischer had a dreadful time on the Black side of this variation when he was making his debut at the Interzonal and Candidates levels in the late 1950s; but at that time, the system with 7...a5 had not been worked out; it is known as the Stein variation, in honour of GM Leonid Stein (1934-1973), multiple Soviet champion.

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