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Attack on the uncastled king: rook to b3 (e3)

sf-u-0005
Puzzle rating: 1450Theme: Uncastled king: the enemy king is stuck in the centre — punish it before it castles.
a8b7c6d5e4f3g2h1
White to move — find the best continuation

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The tactical motive

Uncastled king: the enemy king is stuck in the centre — punish it before it castles.

White to move — find the best continuation

Solution & explanation

Main line

19. Rb3+ axb3 20. Qb6#

Why it works

  • Great move! rook to b3 keeps the pressure (#1).
  • Well found: queen to b6 (#).
  • The line ends in a forced mate in 2.
  • If instead axb3, then Qb6# and it is mate.

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