rn1k3r/1b2pqbp/p5pn/2p2P2/p1P2P2/N1PP2P1/5N1P/R1B1QKR1 b - - 0 20
FEN state: rn1k3r/1b2pqbp/p5pn/2p2P2/p1P2P2/N1PP2P1/5N1P/R1B1QKR1 b - - 0 20 ; Best move: b8d7
The current state of the chess board is: Black rook at a8, black knight at b8, black king at d8 and black rook at h8. Black bishop at b7, black pawn at e7, black queen at f7, black bishop at g7 and black pawn at h7. Black pawn at a6, black pawn at g6 and black knight at h6. Black pawn at c5 and white pawn at f5. Black pawn at a4, white pawn at c4 and white pawn at f4. White knight at a3, white pawn at c3, white pawn at d3 and white pawn at g3. White knight at f2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at e1, white king at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.