Monday, February 25, 2008

Transformation geometry

侯逸凡 (Hóu Yìfán) – Nicholas Pert
800th Anniversary Summit Chess Match UK–China; Liverpool, September 7, 2007
r1b1k2r/ppq2pp1/2n1p3/3pPn1p/3P1Q2/P2B1N2/R1P2PPP/2B1K2R b Kkq - 1 12

Position after 12. Qg4-f4

Notes by Errol Tiwari, Stabroek News, No. 258, Sunday, September 16, 2007, p. 12A.

Black now snatches a Pawn by 12. ... Ncxd4 13. 0-0! White castles. 13. ... Nxf3+ 14. Qxf3 Qxe5. Black has two extra Pawns, but his development is lagging and his dark squares are very weak. Play continues as follows: 15. Bb2 d4 16. Raa1 Nh4 17. Qh3 Qf4 18. Rae1 Qg4 19. Qxg4 hxg4 20. Bxd4 f6 21. f3! Bd7 22. fxg4 0-0-0 23. Bxa7... White goes from two Pawns down to one Pawn up. Black cannot save the ending. Pert resigned on the 47th move. 1–0.