rn1q1b1r/3kpp1p/2pp1np1/pp6/1P3BPP/1b1P3N/P1P1PP1R/RN1QKB2 b Q - 0 10
FEN state: rn1q1b1r/3kpp1p/2pp1np1/pp6/1P3BPP/1b1P3N/P1P1PP1R/RN1QKB2 b Q - 0 10 ; Best move: b3e6
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8 and black rook at h8. Black king at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at c6, black pawn at d6, black knight at f6 and black pawn at g6. Black pawn at a5 and black pawn at b5. White pawn at b4, white bishop at f4, white pawn at g4 and white pawn at h4. Black bishop at b3, white pawn at d3 and white knight at h3. White pawn at a2, white pawn at c2, white pawn at e2, white pawn at f2 and white rook at h2. 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 10. Black to move.