r4bn1/npq2k1r/3pbp2/p1P1p2p/P5P1/N2PPB1p/1BPK1P1P/R2Q1R2 b - - 2 20
FEN state: r4bn1/npq2k1r/3pbp2/p1P1p2p/P5P1/N2PPB1p/1BPK1P1P/R2Q1R2 b - - 2 20 ; Best move: d6d5
The current state of the chess board is: Black rook at a8, black bishop at f8 and black knight at g8. Black knight at a7, black pawn at b7, black queen at c7, black king at f7 and black rook at h7. Black pawn at d6, black bishop at e6 and black pawn at f6. Black pawn at a5, white pawn at c5, black pawn at e5 and black pawn at h5. White pawn at a4 and white pawn at g4. White knight at a3, white pawn at d3, white pawn at e3, white bishop at f3 and black pawn at h3. White bishop at b2, white pawn at c2, white king at d2, white pawn at f2 and white pawn at h2. White rook at a1, white queen at d1 and white rook at f1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. Black to move.