Tuesday, January 27, 2009
Win - but quickly
Horton-Portero, Casino Jaque v Marcos Frechin, Aragón League 2009. Position after Black's 30th move.
White has sacrificed a pawn to catch Black's king in the centre with queen and rook available to try and deliver mate: Black's rook is undeveloped but the queen has some capacity to do damage to an unprotected White king. With eight minutes on his clock, plus thirty seconds a move, White begins with the obvious (and correct) 31.Qd3+ as indicated in the diagram. If 31...Kxe5 32.Qg3+ ends the game so Black must (and did) try 31...Ke6.
In truth, Black is lost - but what's the best way to win? No computers, if you would, and I'd like to see variations, please, not just White's next move.
[You may take it that White, although he won in the end, didn't find the best line. Or the second best. Or the third.]