1rb1kbnr/p4qp1/np1p4/2p1ppNp/PP6/RK2PP2/2PPQ1PP/1NB2B1R w k - 1 13
FEN state: 1rb1kbnr/p4qp1/np1p4/2p1ppNp/PP6/RK2PP2/2PPQ1PP/1NB2B1R w k - 1 13 ; Best move: g5f7
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black queen at f7 and black pawn at g7. Black knight at a6, black pawn at b6 and black pawn at d6. Black pawn at c5, black pawn at e5, black pawn at f5, white knight at g5 and black pawn at h5. White pawn at a4 and white pawn at b4. White rook at a3, white king at b3, white pawn at e3 and white pawn at f3. White pawn at c2, white pawn at d2, white queen at e2, white pawn at g2 and white pawn at h2. White knight at b1, white bishop at c1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 13. White to move.