r1b2rkb/p2n1p2/2pq2p1/1pBpP1np/4P1P1/PP2K2P/R1P3B1/1N1Q2NR b - - 5 20
FEN state: r1b2rkb/p2n1p2/2pq2p1/1pBpP1np/4P1P1/PP2K2P/R1P3B1/1N1Q2NR b - - 5 20 ; Best move: d6c5
The current state of the chess board is: Black rook at a8, black bishop at c8, black rook at f8, black king at g8 and black bishop at h8. Black pawn at a7, black knight at d7 and black pawn at f7. Black pawn at c6, black queen at d6 and black pawn at g6. Black pawn at b5, white bishop at c5, black pawn at d5, white pawn at e5, black knight at g5 and black pawn at h5. White pawn at e4 and white pawn at g4. White pawn at a3, white pawn at b3, white king at e3 and white pawn at h3. White rook at a2, white pawn at c2 and white bishop at g2. White knight at b1, white queen at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 20. Black to move.