rn1k1b2/1b1ppp1n/p6r/1pp4p/N1PP2PP/PP2P1P1/2K5/QR3BNR b - - 0 20
FEN state: rn1k1b2/1b1ppp1n/p6r/1pp4p/N1PP2PP/PP2P1P1/2K5/QR3BNR b - - 0 20 ; Best move: b7h1
The current state of the chess board is: Black rook at a8, black knight at b8, black king at d8 and black bishop at f8. Black bishop at b7, black pawn at d7, black pawn at e7, black pawn at f7 and black knight at h7. Black pawn at a6 and black rook at h6. Black pawn at b5, black pawn at c5 and black pawn at h5. White knight at a4, white pawn at c4, white pawn at d4, white pawn at g4 and white pawn at h4. White pawn at a3, white pawn at b3, white pawn at e3 and white pawn at g3. White king at c2. White queen at a1, white rook at b1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.