r1bq1k2/2ppb3/p1n1pp2/2r4P/1nP2NQ1/p4P2/PP1P2P1/R1B3KR b - - 0 21
FEN state: r1bq1k2/2ppb3/p1n1pp2/2r4P/1nP2NQ1/p4P2/PP1P2P1/R1B3KR b - - 0 21 ; Best move: c5g5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8 and black king at f8. Black pawn at c7, black pawn at d7 and black bishop at e7. Black pawn at a6, black knight at c6, black pawn at e6 and black pawn at f6. Black rook at c5 and white pawn at h5. Black knight at b4, white pawn at c4, white knight at f4 and white queen at g4. Black pawn at a3 and white pawn at f3. White pawn at a2, white pawn at b2, white pawn at d2 and white pawn at g2. White rook at a1, white bishop at c1, white king at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.