Chess Puzzle #CpMVt — Master, Black to move, middlegame

Position

White: king g1; queen d1; rooks a1/f1; bishops b2/e2; knight d2; pawns b5/c2/d4/f2/g2/h2. Black: king g8; queen h4; rook a8; bishop d6; knight e4; pawns a7/b7/c7/d5/e3/h6/h7. White is ahead by 7 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Nf3 — knight d2→f3. Now Black to move.
2. Best move: exf2+ — pawn e3→f2, captures pawn, gives check. Opponent replies Rxf2 (rook f1→f2, captures pawn).
3. Best move: Bxh2+ — bishop d6→h2, captures pawn, gives check. Opponent replies Nxh2 (knight f3→h2, captures bishop).
4. Best move: Qxf2+ — queen h4→f2, captures rook, gives check. Opponent replies Kh1 (king g1→h1).
5. Best move: Ng3# — knight e4→g3, delivers checkmate.

Tactical themes

advanced pawn, kingside attack, mate, mate in 4, middlegame, very long. The combination ends with Ng3# delivering checkmate.

Position data

FEN: r5k1/ppp4p/3b3p/1P1p4/3Pn2q/4p3/1BPNBPPP/R2Q1RK1 w - - 0 19

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