rnb1r3/p2pkp2/1pp4p/1q2p2P/1PPPPpn1/b4P2/Q5P1/RNB1KBR1 b Q - 1 17
FEN state: rnb1r3/p2pkp2/1pp4p/1q2p2P/1PPPPpn1/b4P2/Q5P1/RNB1KBR1 b Q - 1 17 ; Best move: b5b4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black rook at e8. Black pawn at a7, black pawn at d7, black king at e7 and black pawn at f7. Black pawn at b6, black pawn at c6 and black pawn at h6. Black queen at b5, black pawn at e5 and white pawn at h5. White pawn at b4, white pawn at c4, white pawn at d4, white pawn at e4, black pawn at f4 and black knight at g4. Black bishop at a3 and white pawn at f3. White queen at a2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at g1. White queenside is the only castle move available. Half move number is 1. Full move number is 17. Black to move.