r1b2knr/p1ppqppp/np6/4p3/3NPP1b/1P4PP/P1PP4/RN1QKB1R w KQ - 2 10
FEN state: r1b2knr/p1ppqppp/np6/4p3/3NPP1b/1P4PP/P1PP4/RN1QKB1R w KQ - 2 10 ; Best move: d4f5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7, black queen at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6 and black pawn at b6. Black pawn at e5. White knight at d4, white pawn at e4, white pawn at f4 and black bishop at h4. White pawn at b3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at c2 and white pawn at d2. White rook at a1, white knight at b1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 2. Full move number is 10. White to move.