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Attack on the uncastled king: knight to b6 (c4·4)

c9-11723
Puzzle rating: 1630Theme: 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

19. Nxb6+ Rxb6 20. Ra8+ Rb8 21. Qa6#

Why it works

  • Great move! knight to b6 keeps the pressure (#2).
  • Well found: rook to a8 (#1).
  • Precise: queen to a6 is the top choice (#).
  • The line ends in a forced mate in 3.
  • If instead Rxb6, then Ra8+ and you win the queen.

About this position

These pieces come from starting position #946.

Explore position #946

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