r5nr/pb1k1pb1/nppp1pp1/4B3/1P3P1P/P2P4/2P1P1R1/RN1QKB2 b Q - 0 15
FEN state: r5nr/pb1k1pb1/nppp1pp1/4B3/1P3P1P/P2P4/2P1P1R1/RN1QKB2 b Q - 0 15 ; Best move: f6e5
The current state of the chess board is: Black rook at a8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black king at d7, black pawn at f7 and black bishop at g7. Black knight at a6, black pawn at b6, black pawn at c6, black pawn at d6, black pawn at f6 and black pawn at g6. White bishop at e5. White pawn at b4, white pawn at f4 and white pawn at h4. White pawn at a3 and white pawn at d3. White pawn at c2, white pawn at e2 and white rook at g2. White rook at a1, white knight at b1, white queen at d1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 0. Full move number is 15. Black to move.