B1bqkb2/p2p2pr/5p1n/1pp1p3/Pn3Pp1/N3P3/1PPP2PP/1RBK2NR w - - 0 12
FEN state: B1bqkb2/p2p2pr/5p1n/1pp1p3/Pn3Pp1/N3P3/1PPP2PP/1RBK2NR w - - 0 12 ; Best move: a4b5
The current state of the chess board is: White bishop at a8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at d7, black pawn at g7 and black rook at h7. Black pawn at f6 and black knight at h6. Black pawn at b5, black pawn at c5 and black pawn at e5. White pawn at a4, black knight at b4, white pawn at f4 and black pawn at g4. White knight at a3 and white pawn at e3. White pawn at b2, white pawn at c2, white pawn at d2, white pawn at g2 and white pawn at h2. White rook at b1, white bishop at c1, white king at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 12. White to move.