r1bq1br1/1ppp1kpp/p4p1n/n2Pp3/1P5P/N1P5/P2KPPP1/R1BQ1BNR b - - 0 9
FEN state: r1bq1br1/1ppp1kpp/p4p1n/n2Pp3/1P5P/N1P5/P2KPPP1/R1BQ1BNR b - - 0 9 ; Best move: a5c6
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8 and black rook at g8. Black pawn at b7, black pawn at c7, black pawn at d7, black king at f7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at f6 and black knight at h6. Black knight at a5, white pawn at d5 and black pawn at e5. White pawn at b4 and white pawn at h4. White knight at a3 and white pawn at c3. White pawn at a2, white king at d2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1, 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 9. Black to move.