rnb1kb1r/2pp2pp/p6n/1P3p2/2B2P2/N1P2K1P/P2P4/R1B3NR b - - 2 20
FEN state: rnb1kb1r/2pp2pp/p6n/1P3p2/2B2P2/N1P2K1P/P2P4/R1B3NR b - - 2 20 ; Best move: c8b7
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black pawn at d7, black pawn at g7 and black pawn at h7. Black pawn at a6 and black knight at h6. White pawn at b5 and black pawn at f5. White bishop at c4 and white pawn at f4. White knight at a3, white pawn at c3, white king at f3 and white pawn at h3. White pawn at a2 and white pawn at d2. White rook at a1, white bishop at c1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. Black to move.