1rbqkb2/p1ppppp1/5n2/2n3Nr/1p1P4/PQ6/1PP1PPRP/RNB1KB2 b Q - 1 10
FEN state: 1rbqkb2/p1ppppp1/5n2/2n3Nr/1p1P4/PQ6/1PP1PPRP/RNB1KB2 b Q - 1 10 ; Best move: c5b3
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at e7, black pawn at f7 and black pawn at g7. Black knight at f6. Black knight at c5, white knight at g5 and black rook at h5. Black pawn at b4 and white pawn at d4. White pawn at a3 and white queen at b3. White pawn at b2, white pawn at c2, white pawn at e2, white pawn at f2, white rook at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 1. Full move number is 10. Black to move.