rn1q1b2/1ppk1r2/3p2p1/p2npp1p/P1P1P2P/3N1PP1/RP1PB3/1NB1QKR1 w - - 4 25
FEN state: rn1q1b2/1ppk1r2/3p2p1/p2npp1p/P1P1P2P/3N1PP1/RP1PB3/1NB1QKR1 w - - 4 25 ; Best move: e4d5
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8 and black bishop at f8. Black pawn at b7, black pawn at c7, black king at d7 and black rook at f7. Black pawn at d6 and black pawn at g6. Black pawn at a5, black knight at d5, black pawn at e5, black pawn at f5 and black pawn at h5. White pawn at a4, white pawn at c4, white pawn at e4 and white pawn at h4. White knight at d3, white pawn at f3 and white pawn at g3. White rook at a2, white pawn at b2, white pawn at d2 and white bishop at e2. White knight at b1, white bishop at c1, white queen at e1, white king at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 25. White to move.