rnb1k2r/p1pp1pp1/1p2p2p/P7/2PP4/b4Q1P/1P1B1nP1/RN2KB1R b KQkq - 0 10
FEN state: rnb1k2r/p1pp1pp1/1p2p2p/P7/2PP4/b4Q1P/1P1B1nP1/RN2KB1R b KQkq - 0 10 ; Best move: a3b2
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at g7. Black pawn at b6, black pawn at e6 and black pawn at h6. White pawn at a5. White pawn at c4 and white pawn at d4. Black bishop at a3, white queen at f3 and white pawn at h3. White pawn at b2, white bishop at d2, black knight at f2 and white pawn at g2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 10. Black to move.