White to play and...
Logic
Level
2
It is White's move. How long will it take for him to end the game, assuming Black attempts to prolong it as long as possible and White attempts to end it as quickly as possible?
Three moves
Two moves
One move
Five moves
Four moves
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1 solution
White plays 1 Q-K1.
That leaves Black exactly five legal moves.
On 1... P-N7, White ends the game with 2 BxKP mate.
On 1... PxB(N), White plays 2 Q-B2 ch forcing 2... KxQ, stalemating White.
On 1... PxB(B) White plays 2 KxP, stalemating Black.
On 1...PxB(R) White plays 2 QxP mate.
On 1...PxB(Q) White plays 2 KxP, and Black's only legal move is 2...QxQ mate.