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Attack on the uncastled king: rook to b7 (b3·4)

c9-23752
Puzzle rating: 1290Theme: 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

16. Rxb7+ Ka8 17. Ra7+ Kb8 18. Nxe8

Why it works

  • Great move! rook to b7 keeps the pressure (+6.2).
  • Well found: rook to a7 (+6.1).
  • Precise: knight to e8 is the top choice (+6.3).
  • You win a piece — the queen.
  • If instead Ka8, then Ra7+ and you stay on top.

About this position

These pieces come from starting position #847.

Explore position #847

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