2b2bnr/r2qkB2/p1pp1p1p/4n1p1/2P1P3/Np1PKP1N/PP2R1PP/R1BQ4 b - - 0 20
FEN state: 2b2bnr/r2qkB2/p1pp1p1p/4n1p1/2P1P3/Np1PKP1N/PP2R1PP/R1BQ4 b - - 0 20 ; Best move: e7f7
The current state of the chess board is: Black bishop at c8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at a7, black queen at d7, black king at e7 and white bishop at f7. Black pawn at a6, black pawn at c6, black pawn at d6, black pawn at f6 and black pawn at h6. Black knight at e5 and black pawn at g5. White pawn at c4 and white pawn at e4. White knight at a3, black pawn at b3, white pawn at d3, white king at e3, white pawn at f3 and white knight at h3. White pawn at a2, white pawn at b2, white rook at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1 and white queen at d1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.