r1q2bnr/pbp1p1p1/n3kp1p/1P6/QPP1P1PP/N2p4/3P1PB1/2B1K1NR w K - 0 17
FEN state: r1q2bnr/pbp1p1p1/n3kp1p/1P6/QPP1P1PP/N2p4/3P1PB1/2B1K1NR w K - 0 17 ; Best move: b5a6
The current state of the chess board is: Black rook at a8, black queen at c8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at c7, black pawn at e7 and black pawn at g7. Black knight at a6, black king at e6, black pawn at f6 and black pawn at h6. White pawn at b5. White queen at a4, white pawn at b4, white pawn at c4, white pawn at e4, white pawn at g4 and white pawn at h4. White knight at a3 and black pawn at d3. White pawn at d2, white pawn at f2 and white bishop at g2. White bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 17. White to move.