lost in space: Up to move 12 we have a normal Nimzo-Indian, Sämisch Variation.
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Noteboom played 13. exd4. I think cxd4 is the better choice. 13. cxd4 Rc8 14. Qb3 15. 0-0 Rfe8 16. Bd2 Qc2 17. Qxc2 Rxc2 18. Rfd1 Nb8 (other moves are bad: 21...Ba6?? 22. Bxa6 Nxa6 23. Ne7+; 21...Kf8 22. Bb4+) 22. e4 g6 23. Nh6+ Kg7 27. Ng4 h5 25. Nf2 f6 and White is clearly better
 click for larger viewAt move 18 we have:
 click for larger viewWith the simple 18...g6 Black has equal play. 18...g6 is taking white's knight the square f5 and is giving blacks king Luft. At the same time the pawn h7 is protected; all this with very little risk as white has no blacksquared bishop any longer. Black's move 18...Nxd4?? is losing due to back rank mate issue. At move 22 Noteboom missed a shot:
 click for larger view23. Qxb2!! Rxe1 24. Bf1 and the mate threat on g7 is killing Black directly, e.g. 24...R8e5 25. Rxe1
 click for larger viewor 24...R1e5 25. Nxg7 Kxg7 26. f4
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