2b1k1n1/prpp1r2/n1p5/7N/PPP1p1pP/4P1P1/R2P1P2/1NB2K1R b - - 0 20
FEN state: 2b1k1n1/prpp1r2/n1p5/7N/PPP1p1pP/4P1P1/R2P1P2/1NB2K1R b - - 0 20 ; Best move: a6b4
The current state of the chess board is: Black bishop at c8, black king at e8 and black knight at g8. Black pawn at a7, black rook at b7, black pawn at c7, black pawn at d7 and black rook at f7. Black knight at a6 and black pawn at c6. White knight at h5. White pawn at a4, white pawn at b4, white pawn at c4, black pawn at e4, black pawn at g4 and white pawn at h4. White pawn at e3 and white pawn at g3. White rook at a2, white pawn at d2 and white pawn at f2. White knight at b1, white bishop at c1, white king at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.