rnn1qb1r/pNp2kp1/b4p1p/3Pp3/RP6/3P4/3BPPPP/1Q2KBNR w K - 1 13
FEN state: rnn1qb1r/pNp2kp1/b4p1p/3Pp3/RP6/3P4/3BPPPP/1Q2KBNR w K - 1 13 ; Best move: a4a6
The current state of the chess board is: Black rook at a8, black knight at b8, black knight at c8, black queen at e8, black bishop at f8 and black rook at h8. Black pawn at a7, white knight at b7, black pawn at c7, black king at f7 and black pawn at g7. Black bishop at a6, black pawn at f6 and black pawn at h6. White pawn at d5 and black pawn at e5. White rook at a4 and white pawn at b4. White pawn at d3. White bishop at d2, white pawn at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White queen at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 1. Full move number is 13. White to move.