This position is from Graf-Kunte, Calcutta, 1996. Black has gone down the first rank and has a Rook+Queen battery threatening checkmate on h1. It is White to play. Should White resign?

In the game White went 43.g6 and won. Do you know how? Check the full game with the Chess King applet.

Graf Alexander (GER) (2580) – Kunte Abhijit (IND) (2345)

Result: 1-0
Site: Calcutta (India)
Date: 1996
[…] 1.d4 ¤f6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 ¥xa6 6.¤c3 d6 7.e4 ¥xf1 8.¢xf1 g6 9.¤f3 ¥g7 10.h3 ¤bd7 11.¢g1 O-O 12.¢h2 £a5 13.¦e1 ¦fb8 14.¦e2 ¦b7 15.¦c2 ¦ab8 16.£e2 ¤e8 17.¢g1 ¤c7 18.¥g5 ¢f8 19.¦ac1 ¤a6 20.a3 ¤c7 21.¥f4 £a6 22.£d2 ¢g8 23.¥g5 ¦e8 24.¦e1 ¤b6 25.£c1 ¤c4 26.¤d1 ¤a5 27.¤d2 ¤b5 28.b4 cxb4 29.axb4 ¤d4 30.¦c8 ¦b8 31.¦xe8+ ¦xe8 32.bxa5 ¤e2+ 33.¦xe2 £xe2 34.¤e3 h6 35.¥f4 g5 36.¥g3 h5 37.h4 ¦a8 38.hxg5 ¦xa5 39.£c8+ ¢h7 40.¤f3 ¦a1+ 41.¢h2 £b2 42.¤f5 £b1 43.g6+ ¢xg6 44.¤xe7+
Black resigns because after Nxe7+ and Black’s King move, White has to simply play to a checkmate. For example, 44.Nxe7+ Kh7 45.Qg8+ Kh6 46.Bf4# Or, 44.Nxe7+ Kh6 45.Bf4 Kh7 46.Qg8# Even otherwise, if Black had not taken the g6 pawn with the King and played 43. …fxg instead of 43. …Kxg6 (as in the game), White would have still won simply with 44.Nxg5 checkmate! Did you spot that chess move?