4kbnr/2rp2pp/2n1p1q1/1P6/RPp1p3/2PP1P1N/4K2P/2B1QB1R b - - 4 20
FEN state: 4kbnr/2rp2pp/2n1p1q1/1P6/RPp1p3/2PP1P1N/4K2P/2B1QB1R b - - 4 20 ; Best move: e4d3
The current state of the chess board is: Black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at c7, black pawn at d7, black pawn at g7 and black pawn at h7. Black knight at c6, black pawn at e6 and black queen at g6. White pawn at b5. White rook at a4, white pawn at b4, black pawn at c4 and black pawn at e4. White pawn at c3, white pawn at d3, white pawn at f3 and white knight at h3. White king at e2 and white pawn at h2. White bishop at c1, white queen at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 20. Black to move.