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Attack on the uncastled king: queen to b7 (a6·3)

c9-25507
Puzzle rating: 1450Theme: Chess960 twist: use the unusual starting setup of the pieces.
a8b7c6d5e4f3g2h1
White to move — find the best continuation

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The tactical motive

Chess960 twist: use the unusual starting setup of the pieces.

White to move — find the best continuation

Solution & explanation

Main line

21. Qxb7+ Nxb7 22. Ra8#

Why it works

  • Best move. queen to b7 is exactly what the engine plays (#1).
  • Well found: rook to a8 (#).
  • The line ends in a forced mate in 2.
  • If instead Nxb7, then Ra8# and it is mate.

About this position

These pieces come from starting position #833.

Explore position #833

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