1nb1k1r1/rpq1p1b1/6P1/p2p4/P1PpPN1P/1P6/3KBP2/R1B1Q2R b - - 6 21
FEN state: 1nb1k1r1/rpq1p1b1/6P1/p2p4/P1PpPN1P/1P6/3KBP2/R1B1Q2R b - - 6 21 ; Best move: c7f4
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8 and black rook at g8. Black rook at a7, black pawn at b7, black queen at c7, black pawn at e7 and black bishop at g7. White pawn at g6. Black pawn at a5 and black pawn at d5. White pawn at a4, white pawn at c4, black pawn at d4, white pawn at e4, white knight at f4 and white pawn at h4. White pawn at b3. White king at d2, white bishop at e2 and white pawn at f2. White rook at a1, white bishop at c1, white queen at e1 and white rook at h1. Both players have exhausted their castles. Half move number is 6. Full move number is 21. Black to move.