rnb1q3/p2p2p1/1p1b1rkp/2P1p3/1P2n1P1/2PQ4/P6P/RNB1KR2 b Q - 2 23
FEN state: rnb1q3/p2p2p1/1p1b1rkp/2P1p3/1P2n1P1/2PQ4/P6P/RNB1KR2 b Q - 2 23 ; Best move: f6f1
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black queen at e8. Black pawn at a7, black pawn at d7 and black pawn at g7. Black pawn at b6, black bishop at d6, black rook at f6, black king at g6 and black pawn at h6. White pawn at c5 and black pawn at e5. White pawn at b4, black knight at e4 and white pawn at g4. White pawn at c3 and white queen at d3. White pawn at a2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white rook at f1. White queenside is the only castle move available. Half move number is 2. Full move number is 23. Black to move.