Rating 1500 · Intermediate · mate, mate in 1, middlegame, one move.
White: king b1; queen g5; rooks d1/h1; bishop d3; knights f1/h4; pawns a2/b2/c3/d4/g2/g3/h6. Black: king h8; queen c7; rooks a8/f8; bishops c8/d6; knight a6; pawns a7/b7/c6/d5/f5/g4/h7. Material is balanced. White to move.
mate, mate in 1, middlegame, one move. The combination ends with Qg7# delivering checkmate.
FEN: r1b2r1k/ppq4p/n1pb3P/3p1pQ1/3P2pN/2PB2P1/PP4P1/1K1R1N1R b - - 3 21
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