rnbq4/p1pp2r1/1B3k1n/5ppp/Pb1PPp1P/5P1R/1PP1B1P1/4RKN1 w - - 1 25
FEN state: rnbq4/p1pp2r1/1B3k1n/5ppp/Pb1PPp1P/5P1R/1PP1B1P1/4RKN1 w - - 1 25 ; Best move: e4e5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black queen at d8. Black pawn at a7, black pawn at c7, black pawn at d7 and black rook at g7. White bishop at b6, black king at f6 and black knight at h6. Black pawn at f5, black pawn at g5 and black pawn at h5. White pawn at a4, black bishop at b4, white pawn at d4, white pawn at e4, black pawn at f4 and white pawn at h4. White pawn at f3 and white rook at h3. White pawn at b2, white pawn at c2, white bishop at e2 and white pawn at g2. White rook at e1, white king at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 25. White to move.