rnb2kn1/p1qp1p2/4p1pr/1B4Np/1pP1P2P/P1bPQPP1/8/2BK1R2 b - - 0 25
FEN state: rnb2kn1/p1qp1p2/4p1pr/1B4Np/1pP1P2P/P1bPQPP1/8/2BK1R2 b - - 0 25 ; Best move: a7a6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at f8 and black knight at g8. Black pawn at a7, black queen at c7, black pawn at d7 and black pawn at f7. Black pawn at e6, black pawn at g6 and black rook at h6. White bishop at b5, white knight at g5 and black pawn at h5. Black pawn at b4, white pawn at c4, white pawn at e4 and white pawn at h4. White pawn at a3, black bishop at c3, white pawn at d3, white queen at e3, white pawn at f3 and white pawn at g3. White bishop at c1, white king at d1 and white rook at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. Black to move.