Rating 1883 · Advanced · advantage, discovered attack, long, middlegame, pin.
White: king c1; queen f3; rooks d1/g7; bishop c2; knight f4; pawns a2/b2/c4/f2/g2/h5. Black: king f8; queen c7; rooks d8/e8; bishop b7; knight f6; pawns a7/b6/c5/d5/f7/h6. Material is balanced. White to move.
advantage, discovered attack, long, middlegame, pin. The key move is Qg3+.
FEN: 3rrk2/pbq2pR1/1p3n1p/2pp3P/2P2N2/5Q2/PPB2PP1/2KR4 b - - 0 20
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