r1bqk2r/2p1p2p/p5p1/Bp1pbp2/1n1P1PPP/1PP4R/P3P3/RNK2QN1 w kq - 0 16
FEN state: r1bqk2r/2p1p2p/p5p1/Bp1pbp2/1n1P1PPP/1PP4R/P3P3/RNK2QN1 w kq - 0 16 ; Best move: a5b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black pawn at c7, black pawn at e7 and black pawn at h7. Black pawn at a6 and black pawn at g6. White bishop at a5, black pawn at b5, black pawn at d5, black bishop at e5 and black pawn at f5. Black knight at b4, white pawn at d4, white pawn at f4, white pawn at g4 and white pawn at h4. White pawn at b3, white pawn at c3 and white rook at h3. White pawn at a2 and white pawn at e2. White rook at a1, white knight at b1, white king at c1, white queen at f1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 16. White to move.