(5) Kernighan,M (2249) - Chen,K (1971) [E32]
4th Sy Fish Memorial Kenilworth, NJ (2), 13.10.2011
[Moldovan & Houdini 1.5a]

E32 Nimzo-Indian Defense Classical Variation

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 0-0 5.a3 Bxc3+ 6.Qxc3 Ne4
[For 6...b6 see Minkov - Hall : Westfield Quads 08/28/2005; 6...d6 is also an option.; So is 6...d5 .]

7.Qc2 f5 8.e3
[RR: 8.Nh3 b6 9.f3 Nf6 10.e3 Bb7 11.Be2 d6 12.0-0 Qe7 13.b4 a5 14.Bb2 Nbd7 15.Nf2 axb4 16.axb4 c5 17.dxc5 dxc5 18.b5 Rfd8 19.Rfd1+/= Carlsen - Nakamura : Oslo 2009]

8...b6 9.Ne2 Bb7 10.f3 Nf6 11.Bd2 d6N
[�11...a5 12.Nf4 Qe8 13.Bd3+/= d6? 14.d5! exd5 15.Bxf5 d4 16.0-0+/- Land - Se. Anderson : Dallas 1999]

12.Ng3 Nbd7
[>=12...c5= ]

13.Bd3 g6 14.0-0 Qe7 15.e4 fxe4 16.fxe4
[>=16.Nxe4+/= ]

16...e5 17.d5 Ng4 18.h3 Qh4??
[18...Rxf1+ 19.Rxf1 Qh4+/= ]

19.Be1 Ne3 20.Rxf8+ Rxf8 21.Qe2 Qf4?
[>=21...Qg5 22.Bf2 Rxf2 23.Qxf2 Nc5 ] Diagram



22.b4?
[>=22.Nh1!! /\ Bd2 Chen & Kernighan]

22...Ba6?
[>=22...b5+/- ]

23.Bd2??
[23.Bf2+- ]

23...Qxg3 24.Bxe3
[>=24.Qxe3 ]

24...Nf6 25.Bh6 Rf7 26.Rf1 Nh5 27.Rxf7 Kxf7 28.Qf2+ Qxf2+ 29.Kxf2 Nf4 30.Bf1 Kf6 31.g3 Nh5 32.Be3
[>=32.g4 Ng7 33.h4+/= ]

32...g5= 33.Be2 Ng7 34.Ke1 Ne8 35.Kd2 h6 36.Kc3 Bc8 37.Bf1 Bd7 38.Bg2 Ng7 39.Bf2 Nh5 40.Bf3 Ng7 41.Bg2 Nh5 42.Bf3 Ng7 43.Bg2 Nh5
Drawn by 3-fold repetition. 1/2-1/2