1rb3nr/q2pbk2/n6p/pp2pPpP/P1p1K1P1/R1N1R2B/1PPP1PN1/2BQ4 b - - 9 20
FEN state: 1rb3nr/q2pbk2/n6p/pp2pPpP/P1p1K1P1/R1N1R2B/1PPP1PN1/2BQ4 b - - 9 20 ; Best move: c8b7
The current state of the chess board is: Black rook at b8, black bishop at c8, black knight at g8 and black rook at h8. Black queen at a7, black pawn at d7, black bishop at e7 and black king at f7. Black knight at a6 and black pawn at h6. Black pawn at a5, black pawn at b5, black pawn at e5, white pawn at f5, black pawn at g5 and white pawn at h5. White pawn at a4, black pawn at c4, white king at e4 and white pawn at g4. White rook at a3, white knight at c3, white rook at e3 and white bishop at h3. White pawn at b2, white pawn at c2, white pawn at d2, white pawn at f2 and white knight at g2. White bishop at c1 and white queen at d1. Both players have exhausted their castles. Half move number is 9. Full move number is 20. Black to move.