r1k2b2/2p1pp1r/3p2pn/pqnP1b1p/3NQ2N/P3B2P/1P1KPPP1/R4B1R b - - 5 21
FEN state: r1k2b2/2p1pp1r/3p2pn/pqnP1b1p/3NQ2N/P3B2P/1P1KPPP1/R4B1R b - - 5 21 ; Best move: b5b2
The current state of the chess board is: Black rook at a8, black king at c8 and black bishop at f8. Black pawn at c7, black pawn at e7, black pawn at f7 and black rook at h7. Black pawn at d6, black pawn at g6 and black knight at h6. Black pawn at a5, black queen at b5, black knight at c5, white pawn at d5, black bishop at f5 and black pawn at h5. White knight at d4, white queen at e4 and white knight at h4. White pawn at a3, white bishop at e3 and white pawn at h3. White pawn at b2, white king at d2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at a1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 21. Black to move.