Chess Puzzle #81WYv — Expert, Black to move, endgame

Position

White: king e2; rooks g7/h7; pawn b5. Black: king f4; rooks d3/d4; pawn g6. Material is balanced. Black to move.

Solution (4 moves)

1. Opponent setup: Rxg6 — rook g7→g6, captures pawn. Now Black to move.
2. Best move: Rd2+ — rook d3→d2, gives check. Opponent replies Kf1 (king e2→f1).
3. Best move: Rd1+ — rook d2→d1, gives check. Opponent replies Kg2 (king f1→g2).
4. Best move: R4d2+ — rook d4→d2, gives check. Opponent replies Kh3 (king g2→h3).
5. Best move: Rh1# — rook d1→h1, delivers checkmate.

Tactical themes

endgame, exposed king, mate, mate in 4, rook endgame, very long. The combination ends with Rh1# delivering checkmate.

Position data

FEN: 8/6RR/6p1/1P6/3r1k2/3r4/4K3/8 w - - 0 46

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