Rook clears the passer’s route
Objective: White to move. Find a plan that breaks the blockade of the b6-pawn.
Position and task condition
The b6-pawn is held by the king, bishop, and a7-pawn. A direct promotion attempt is not enough; the rook must first find an active route.
FEN
kbK5/pp6/1P6/8/8/8/8/R7 w - - 0 1Theme: Rook manoeuvre and promotion