Chess Puzzle #PFm11 — Expert, White to move, opening

Position

White: king e1; queen d1; rooks a1/h1; bishops c1/e2; knight b1; pawns a2/b2/c3/d3/e4/f2/g6/h2. Black: king f7; queen d8; rooks a8/h8; bishops c8/e7; knights c6/h7; pawns a7/b7/c7/d4/e5/g7/h6. Black is ahead by 2 points of material. White to move.

Solution (5 moves)

1. Opponent setup: Kxg6 — king f7→g6, captures pawn. Now White to move.
2. Best move: Bh5+ — bishop e2→h5, gives check. Opponent replies Kf6 (king g6→f6).
3. Best move: Qf3+ — queen d1→f3, gives check. Opponent replies Ke6 (king f6→e6).
4. Best move: Qf7+ — queen f3→f7, gives check. Opponent replies Kd7 (king e6→d7).
5. Best move: Bg4+ — bishop h5→g4, gives check. Opponent replies Kd6 (king d7→d6).
6. Best move: Qd5# — queen f7→d5, delivers checkmate.

Tactical themes

mate, mate in 5, opening, very long. The combination ends with Qd5# delivering checkmate.

Position data

FEN: r1bq3r/ppp1bkpn/2n3Pp/4p3/3pP3/2PP4/PP2BP1P/RNBQK2R b KQ - 0 10

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