1r1q1b1r/2p1pp1p/p1kp2p1/1p1Q2BP/1P1P4/P2BPb1N/8/RN2K1R1 b Q - 1 20
FEN state: 1r1q1b1r/2p1pp1p/p1kp2p1/1p1Q2BP/1P1P4/P2BPb1N/8/RN2K1R1 b Q - 1 20 ; Best move: f3d5
The current state of the chess board is: Black rook at b8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at c7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at a6, black king at c6, black pawn at d6 and black pawn at g6. Black pawn at b5, white queen at d5, white bishop at g5 and white pawn at h5. White pawn at b4 and white pawn at d4. White pawn at a3, white bishop at d3, white pawn at e3, black bishop at f3 and white knight at h3. White rook at a1, white knight at b1, white king at e1 and white rook at g1. White queenside is the only castle move available. Half move number is 1. Full move number is 20. Black to move.