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Mate in 2: queen to b1 (a1)

li-00aDl
Puzzle rating: 1474Theme: Mate in 2: the first move creates an unstoppable threat, the second delivers mate.
h1g2f3e4d5c6b7a8
Black to move — find the best continuation

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The tactical motive

Mate in 2: the first move creates an unstoppable threat, the second delivers mate.

Black to move — find the best continuation

Solution & explanation

Main line

22... Qxb1+ 23. Kxb1 Ra1#

Why it works

  • Great move! queen to b1 keeps the pressure (#1).
  • Well found: rook to a1 (#).
  • The line ends in a forced mate in 2.
  • If instead Kxb1, then Ra1# and it is mate.

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