r2k2nr/1Bpq1pbp/3p4/pp2P1p1/3Q3P/2PPPN2/PP5R/2RbK1N1 b - - 4 20
FEN state: r2k2nr/1Bpq1pbp/3p4/pp2P1p1/3Q3P/2PPPN2/PP5R/2RbK1N1 b - - 4 20 ; Best move: d1f3
The current state of the chess board is: Black rook at a8, black king at d8, black knight at g8 and black rook at h8. White bishop at b7, black pawn at c7, black queen at d7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at d6. Black pawn at a5, black pawn at b5, white pawn at e5 and black pawn at g5. White queen at d4 and white pawn at h4. White pawn at c3, white pawn at d3, white pawn at e3 and white knight at f3. White pawn at a2, white pawn at b2 and white rook at h2. White rook at c1, black bishop at d1, white king at e1 and white knight at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 20. Black to move.