3r1bnr/p2bk3/np2p1pp/2ppp3/PP3N1P/N1QP1P1B/2P1PK2/4R3 b - - 2 20
FEN state: 3r1bnr/p2bk3/np2p1pp/2ppp3/PP3N1P/N1QP1P1B/2P1PK2/4R3 b - - 2 20 ; Best move: e7f6
The current state of the chess board is: Black rook at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at d7 and black king at e7. Black knight at a6, black pawn at b6, black pawn at e6, black pawn at g6 and black pawn at h6. Black pawn at c5, black pawn at d5 and black pawn at e5. White pawn at a4, white pawn at b4, white knight at f4 and white pawn at h4. White knight at a3, white queen at c3, white pawn at d3, white pawn at f3 and white bishop at h3. White pawn at c2, white pawn at e2 and white king at f2. White rook at e1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. Black to move.