rn1q1knr/1pp3b1/p3pp2/1B1p1bpp/3PP3/PP3PPN/2PB3P/RN1QK2R w KQ - 0 10
FEN state: rn1q1knr/1pp3b1/p3pp2/1B1p1bpp/3PP3/PP3PPN/2PB3P/RN1QK2R w KQ - 0 10 ; Best move: e4f5
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7 and black bishop at g7. Black pawn at a6, black pawn at e6 and black pawn at f6. White bishop at b5, black pawn at d5, black bishop at f5, black pawn at g5 and black pawn at h5. White pawn at d4 and white pawn at e4. White pawn at a3, white pawn at b3, white pawn at f3, white pawn at g3 and white knight at h3. White pawn at c2, white bishop at d2 and white pawn at h2. White rook at a1, white knight at b1, white queen at d1, white king at e1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 10. White to move.