2bq1bn1/r1pk3r/3p3p/1p2pPp1/p1P2P2/P2PP3/1P1NQ2P/1RBK2RB b - - 0 21
FEN state: 2bq1bn1/r1pk3r/3p3p/1p2pPp1/p1P2P2/P2PP3/1P1NQ2P/1RBK2RB b - - 0 21 ; Best move: c8b7
The current state of the chess board is: Black bishop at c8, black queen at d8, black bishop at f8 and black knight at g8. Black rook at a7, black pawn at c7, black king at d7 and black rook at h7. Black pawn at d6 and black pawn at h6. Black pawn at b5, black pawn at e5, white pawn at f5 and black pawn at g5. Black pawn at a4, white pawn at c4 and white pawn at f4. White pawn at a3, white pawn at d3 and white pawn at e3. White pawn at b2, white knight at d2, white queen at e2 and white pawn at h2. White rook at b1, white bishop at c1, white king at d1, white rook at g1 and white bishop at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.