rnb1kbnr/1p1p4/4pq1p/p1p2p2/1P2PPp1/3P4/P1PK2PP/RNB1QBNR b kq - 0 10
FEN state: rnb1kbnr/1p1p4/4pq1p/p1p2p2/1P2PPp1/3P4/P1PK2PP/RNB1QBNR b kq - 0 10 ; Best move: f6a1
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7 and black pawn at d7. Black pawn at e6, black queen at f6 and black pawn at h6. Black pawn at a5, black pawn at c5 and black pawn at f5. White pawn at b4, white pawn at e4, white pawn at f4 and black pawn at g4. White pawn at d3. White pawn at a2, white pawn at c2, white king at d2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at e1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 10. Black to move.