r2q2nr/pbp1pkbp/3p4/1p2Pp2/P1P4P/2NPBN2/1P3PP1/R1R3Kn b - - 0 21
FEN state: r2q2nr/pbp1pkbp/3p4/1p2Pp2/P1P4P/2NPBN2/1P3PP1/R1R3Kn b - - 0 21 ; Best move: b7f3
The current state of the chess board is: Black rook at a8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at c7, black pawn at e7, black king at f7, black bishop at g7 and black pawn at h7. Black pawn at d6. Black pawn at b5, white pawn at e5 and black pawn at f5. White pawn at a4, white pawn at c4 and white pawn at h4. White knight at c3, white pawn at d3, white bishop at e3 and white knight at f3. White pawn at b2, white pawn at f2 and white pawn at g2. White rook at a1, white rook at c1, white king at g1 and black knight at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.