r1bnk1r1/p1p1bpp1/3pn3/Pp5p/1PPPpN1q/5PP1/NB2P2R/R2QKB2 b - - 6 21
FEN state: r1bnk1r1/p1p1bpp1/3pn3/Pp5p/1PPPpN1q/5PP1/NB2P2R/R2QKB2 b - - 6 21 ; Best move: h4g3
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at d8, black king at e8 and black rook at g8. Black pawn at a7, black pawn at c7, black bishop at e7, black pawn at f7 and black pawn at g7. Black pawn at d6 and black knight at e6. White pawn at a5, black pawn at b5 and black pawn at h5. White pawn at b4, white pawn at c4, white pawn at d4, black pawn at e4, white knight at f4 and black queen at h4. White pawn at f3 and white pawn at g3. White knight at a2, white bishop at b2, white pawn at e2 and white rook at h2. White rook at a1, white queen at d1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 6. Full move number is 21. Black to move.