r1bqkbnr/2p1pp2/6p1/p2p1n1p/1PPP3P/p1Q2NP1/P3PP1R/2R1KB2 w k - 1 17
FEN state: r1bqkbnr/2p1pp2/6p1/p2p1n1p/1PPP3P/p1Q2NP1/P3PP1R/2R1KB2 w k - 1 17 ; Best move: b4a5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at e7 and black pawn at f7. Black pawn at g6. Black pawn at a5, black pawn at d5, black knight at f5 and black pawn at h5. White pawn at b4, white pawn at c4, white pawn at d4 and white pawn at h4. Black pawn at a3, white queen at c3, white knight at f3 and white pawn at g3. White pawn at a2, white pawn at e2, white pawn at f2 and white rook at h2. White rook at c1, white king at e1 and white bishop at f1. Black kingside is the only castle move available. Half move number is 1. Full move number is 17. White to move.