r2k2nr/2p1pp1p/1p2b2b/1p1p1Pp1/n1PP2q1/1P2B1P1/1R2P2R/2K1QBN1 b - - 1 21
FEN state: r2k2nr/2p1pp1p/1p2b2b/1p1p1Pp1/n1PP2q1/1P2B1P1/1R2P2R/2K1QBN1 b - - 1 21 ; Best move: g4e4
The current state of the chess board is: Black rook at a8, black king at d8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at b6, black bishop at e6 and black bishop at h6. Black pawn at b5, black pawn at d5, white pawn at f5 and black pawn at g5. Black knight at a4, white pawn at c4, white pawn at d4 and black queen at g4. White pawn at b3, white bishop at e3 and white pawn at g3. White rook at b2, white pawn at e2 and white rook at h2. White king at c1, white queen at e1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. Black to move.