r1bq3r/3p1kb1/6np/pN2B1p1/2P1BP2/PP5P/R2PK1P1/1N1n1R2 w - - 0 25
FEN state: r1bq3r/3p1kb1/6np/pN2B1p1/2P1BP2/PP5P/R2PK1P1/1N1n1R2 w - - 0 25 ; Best move: e4d5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8 and black rook at h8. Black pawn at d7, black king at f7 and black bishop at g7. Black knight at g6 and black pawn at h6. Black pawn at a5, white knight at b5, white bishop at e5 and black pawn at g5. White pawn at c4, white bishop at e4 and white pawn at f4. White pawn at a3, white pawn at b3 and white pawn at h3. White rook at a2, white pawn at d2, white king at e2 and white pawn at g2. White knight at b1, black knight at d1 and white rook at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. White to move.