Chess Puzzle #62XFW — Master, White to move, middlegame

Position

White: king b1; queen h6; rooks d1/h1; knight c3; pawns a2/b2/c2/e4/f3/f5. Black: king g8; queen e5; rooks c4/f8; bishop d7; knight f6; pawns a7/b7/d6/e7/h7. Black is ahead by 2 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Rf7 — rook f8→f7. Now White to move.
2. Best move: Rdg1+ — rook d1→g1, gives check. Opponent replies Kh8 (king g8→h8).
3. Best move: Qg6 — queen h6→g6. Opponent replies Be8 (bishop d7→e8).
4. Best move: Nd5 — knight c3→d5. Opponent replies Qxd5 (queen e5→d5, captures knight).
5. Best move: exd5 — pawn e4→d5, captures queen.

Tactical themes

advantage, middlegame, pin, very long. The key move is Rdg1+.

Position data

FEN: 5rk1/pp1bp2p/3p1n1Q/4qP2/2r1P3/2N2P2/PPP5/1K1R3R b - - 0 20

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