r1bq1bnr/1ppnp1p1/4kp1p/p2p4/3PPP2/NP6/P1P3PP/1RBQKBNR w K - 0 10
FEN state: r1bq1bnr/1ppnp1p1/4kp1p/p2p4/3PPP2/NP6/P1P3PP/1RBQKBNR w K - 0 10 ; Best move: f4f5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black knight at d7, black pawn at e7 and black pawn at g7. Black king at e6, black pawn at f6 and black pawn at h6. Black pawn at a5 and black pawn at d5. White pawn at d4, white pawn at e4 and white pawn at f4. White knight at a3 and white pawn at b3. White pawn at a2, white pawn at c2, white pawn at g2 and white pawn at h2. White rook at b1, 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 0. Full move number is 10. White to move.