White has lost the Queen and things seem hopeless if the Black forces are allowed to regroup and attack. However, White found a magic move to decide the game immediately. What was it?

1.Bg7 is the magic move because the checkmate on f8. Black can try a check with the Queen on c2 or try going to the first file, but White has a winning endgame immediately with the strong move.

Chess Puzzle

Result: 1-0
[…] 1.¥g7 £c2+ 2.¢g1