r2q1b1r/1bppkp1p/7n/1P1np3/3PNp2/4P3/2P3PP/R1BQKBNR w K - 5 13
FEN state: r2q1b1r/1bppkp1p/7n/1P1np3/3PNp2/4P3/2P3PP/R1BQKBNR w K - 5 13 ; Best move: d1h5
The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at f8 and black rook at h8. Black bishop at b7, black pawn at c7, black pawn at d7, black king at e7, black pawn at f7 and black pawn at h7. Black knight at h6. White pawn at b5, black knight at d5 and black pawn at e5. White pawn at d4, white knight at e4 and black pawn at f4. White pawn at e3. White pawn at c2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, 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 5. Full move number is 13. White to move.