r1b1qbn1/2n3p1/1p1ppp1r/P3P3/2P2kPp/R2B3P/1B1P1P2/1NQ1K1R1 b - - 0 21
FEN state: r1b1qbn1/2n3p1/1p1ppp1r/P3P3/2P2kPp/R2B3P/1B1P1P2/1NQ1K1R1 b - - 0 21 ; Best move: e8g6
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8, black bishop at f8 and black knight at g8. Black knight at c7 and black pawn at g7. Black pawn at b6, black pawn at d6, black pawn at e6, black pawn at f6 and black rook at h6. White pawn at a5 and white pawn at e5. White pawn at c4, black king at f4, white pawn at g4 and black pawn at h4. White rook at a3, white bishop at d3 and white pawn at h3. White bishop at b2, white pawn at d2 and white pawn at f2. White knight at b1, white queen at c1, white king at e1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.