Chess Puzzle #ijCAA — Master, Black to move, opening

Position

White: king g1; queen e6; rooks a1/f1; bishop d3; knights d2/e5; pawns a2/b2/c3/d4/f2/f4/g2/h2. Black: king h8; queen d8; rooks a8/f8; bishop c8; knights c5/e8; pawns a7/b7/c6/d5/f5/g7/h7. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Nf7+ — knight e5→f7, gives check. Now Black to move.
2. Best move: Rxf7 — rook f8→f7, captures knight. Opponent replies Qxf7 (queen e6→f7, captures rook).
3. Best move: Nd6 — knight e8→d6. Opponent replies Qh5 (queen f7→h5).
4. Best move: Nxd3 — knight c5→d3, captures bishop. Opponent replies Qf3 (queen h5→f3).
5. Best move: Nxb2 — knight d3→b2, captures pawn.

Tactical themes

advantage, middlegame, sacrifice, very long. The key move Rxf7 wins material.

Position data

FEN: r1bqnr1k/pp4pp/2p1Q3/2npNp2/3P1P2/2PB4/PP1N1PPP/R4RK1 w - - 3 13

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