rnb3nr/pp1pqkb1/4p2p/2p2p2/P5Pp/2PPPP2/RP6/1NBQKBNR w K - 0 10
FEN state: rnb3nr/pp1pqkb1/4p2p/2p2p2/P5Pp/2PPPP2/RP6/1NBQKBNR w K - 0 10 ; Best move: g4f5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black queen at e7, black king at f7 and black bishop at g7. Black pawn at e6 and black pawn at h6. Black pawn at c5 and black pawn at f5. White pawn at a4, white pawn at g4 and black pawn at h4. White pawn at c3, white pawn at d3, white pawn at e3 and white pawn at f3. White rook at a2 and white pawn at b2. White knight 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.