rnb1k2r/p2pb1pp/2p4n/1p1N1p1P/5q2/P4P2/3PPKP1/1RB2BNR w kq - 3 15
FEN state: rnb1k2r/p2pb1pp/2p4n/1p1N1p1P/5q2/P4P2/3PPKP1/1RB2BNR w kq - 3 15 ; Best move: d5f4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at d7, black bishop at e7, black pawn at g7 and black pawn at h7. Black pawn at c6 and black knight at h6. Black pawn at b5, white knight at d5, black pawn at f5 and white pawn at h5. Black queen at f4. White pawn at a3 and white pawn at f3. White pawn at d2, white pawn at e2, white king at f2 and white pawn at g2. White rook at b1, white bishop at c1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 3. Full move number is 15. White to move.