Chess Puzzle #XdONu — Master, White to move, middlegame

Position

White: king g1; queen d2; rook c3; pawns a2/d3/e4/h2. Black: king a3; queen f6; rooks a8/f8; pawns a7/b7/c6/g6. Black is ahead by 5 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Ka4 — king a3→a4. Now White to move.
2. Best move: Rc4+ — rook c3→c4, gives check. Opponent replies Kb5 (king a4→b5).
3. Best move: Rb4+ — rook c4→b4, gives check. Opponent replies Kc5 (king b5→c5).
4. Best move: d4+ — pawn d3→d4, gives check. Opponent replies Kd6 (king c5→d6).
5. Best move: e5+ — pawn e4→e5, gives check.

Tactical themes

crushing, endgame, very long. The key move is Rc4+.

Position data

FEN: r4r2/pp6/2p2qp1/8/4P3/k1RP4/P2Q3P/6K1 b - - 3 29

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