r1b2bnr/pp3p1p/n4kp1/4p3/Pq1p1P1P/6PB/1BPQP2R/RN2K3 b Q - 1 16
FEN state: r1b2bnr/pp3p1p/n4kp1/4p3/Pq1p1P1P/6PB/1BPQP2R/RN2K3 b Q - 1 16 ; Best move: b4b2
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at f7 and black pawn at h7. Black knight at a6, black king at f6 and black pawn at g6. Black pawn at e5. White pawn at a4, black queen at b4, black pawn at d4, white pawn at f4 and white pawn at h4. White pawn at g3 and white bishop at h3. White bishop at b2, white pawn at c2, white queen at d2, white pawn at e2 and white rook at h2. White rook at a1, white knight at b1 and white king at e1. White queenside is the only castle move available. Half move number is 1. Full move number is 16. Black to move.