rn2kb1r/p7/2pp1n2/qp1P2pp/1PP1bp1P/B3PP2/P4KP1/R1NQ1B1R w kq - 1 16
FEN state: rn2kb1r/p7/2pp1n2/qp1P2pp/1PP1bp1P/B3PP2/P4KP1/R1NQ1B1R w kq - 1 16 ; Best move: b4a5
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7. Black pawn at c6, black pawn at d6 and black knight at f6. Black queen at a5, black pawn at b5, white pawn at d5, black pawn at g5 and black pawn at h5. White pawn at b4, white pawn at c4, black bishop at e4, black pawn at f4 and white pawn at h4. White bishop at a3, white pawn at e3 and white pawn at f3. White pawn at a2, white king at f2 and white pawn at g2. White rook at a1, white knight at c1, white queen at d1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 16. White to move.