1nbqkr1r/3pn3/8/1P1N1ppp/pp3RP1/1Q3P2/1b1PP2P/1NBK1B1R b k - 1 24
FEN state: 1nbqkr1r/3pn3/8/1P1N1ppp/pp3RP1/1Q3P2/1b1PP2P/1NBK1B1R b k - 1 24 ; Best move: a4b3
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8, black king at e8, black rook at f8 and black rook at h8. Black pawn at d7 and black knight at e7. White pawn at b5, white knight at d5, black pawn at f5, black pawn at g5 and black pawn at h5. Black pawn at a4, black pawn at b4, white rook at f4 and white pawn at g4. White queen at b3 and white pawn at f3. Black bishop at b2, white pawn at d2, white pawn at e2 and white pawn at h2. White knight at b1, white bishop at c1, white king at d1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 24. Black to move.