rn2k2r/pb2np1p/5q1b/1pp1p1p1/QNpP4/4PN1P/PP2BPP1/1RB1K2R w Kkq - 0 12
FEN state: rn2k2r/pb2np1p/5q1b/1pp1p1p1/QNpP4/4PN1P/PP2BPP1/1RB1K2R w Kkq - 0 12 ; Best move: a4b5
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at a7, black bishop at b7, black knight at e7, black pawn at f7 and black pawn at h7. Black queen at f6 and black bishop at h6. Black pawn at b5, black pawn at c5, black pawn at e5 and black pawn at g5. White queen at a4, white knight at b4, black pawn at c4 and white pawn at d4. White pawn at e3, white knight at f3 and white pawn at h3. White pawn at a2, white pawn at b2, white bishop at e2, white pawn at f2 and white pawn at g2. White rook at b1, white bishop at c1, white king at e1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 12. White to move.