r4bnr/1p3p2/2n1k1pp/p2p4/1Pp3PP/P1P5/NQ1NPK2/RbB2B1R w - - 1 25
FEN state: r4bnr/1p3p2/2n1k1pp/p2p4/1Pp3PP/P1P5/NQ1NPK2/RbB2B1R w - - 1 25 ; Best move: a1b1
The current state of the chess board is: Black rook at a8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7 and black pawn at f7. Black knight at c6, black king at e6, black pawn at g6 and black pawn at h6. Black pawn at a5 and black pawn at d5. White pawn at b4, black pawn at c4, white pawn at g4 and white pawn at h4. White pawn at a3 and white pawn at c3. White knight at a2, white queen at b2, white knight at d2, white pawn at e2 and white king at f2. White rook at a1, black bishop at b1, white bishop at c1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 25. White to move.