r1bq1b1r/p1n4p/2k2n2/1NpNp3/4P1B1/3P4/PPPB1pPP/R2Q1KR1 b - - 0 20
FEN state: r1bq1b1r/p1n4p/2k2n2/1NpNp3/4P1B1/3P4/PPPB1pPP/R2Q1KR1 b - - 0 20 ; Best move: c8g4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at a7, black knight at c7 and black pawn at h7. Black king at c6 and black knight at f6. White knight at b5, black pawn at c5, white knight at d5 and black pawn at e5. White pawn at e4 and white bishop at g4. White pawn at d3. White pawn at a2, white pawn at b2, white pawn at c2, white bishop at d2, black pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white queen at d1, white king at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.