rnb1k1n1/p1qp1pb1/6pr/1pp2p1B/2P4p/NP2P3/PB1P2PP/2RQK1NR w Kq - 0 12
FEN state: rnb1k1n1/p1qp1pb1/6pr/1pp2p1B/2P4p/NP2P3/PB1P2PP/2RQK1NR w Kq - 0 12 ; Best move: a3b5
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 knight at g8. Black pawn at a7, black queen at c7, black pawn at d7, black pawn at f7 and black bishop at g7. Black pawn at g6 and black rook at h6. Black pawn at b5, black pawn at c5, black pawn at f5 and white bishop at h5. White pawn at c4 and black pawn at h4. White knight at a3, white pawn at b3 and white pawn at e3. White pawn at a2, white bishop at b2, white pawn at d2, white pawn at g2 and white pawn at h2. White rook at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside and black queenside castles are available. Half move number is 0. Full move number is 12. White to move.