r1q2b1r/p2n1k2/b4n1p/1Q1p2p1/Pp1p1BP1/1PP2p1P/3K1P2/RN3BR1 w - - 3 18
FEN state: r1q2b1r/p2n1k2/b4n1p/1Q1p2p1/Pp1p1BP1/1PP2p1P/3K1P2/RN3BR1 w - - 3 18 ; Best move: b5a6
The current state of the chess board is: Black rook at a8, black queen at c8, black bishop at f8 and black rook at h8. Black pawn at a7, black knight at d7 and black king at f7. Black bishop at a6, black knight at f6 and black pawn at h6. White queen at b5, black pawn at d5 and black pawn at g5. White pawn at a4, black pawn at b4, black pawn at d4, white bishop at f4 and white pawn at g4. White pawn at b3, white pawn at c3, black pawn at f3 and white pawn at h3. White king at d2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 3. Full move number is 18. White to move.