Can somebody please give positions which achieve maximal
distance to conversion (DTC) for:
1. KQKR (31 moves);
2. KRKB (18 moves) - I think 8/8/8/8/8/2R5/8/3K1bk1 is such a position; is this true?
3. KBBKN (66 moves);
4. KQRKQ (60 moves);
5. KQKBB (71 moves).
Also, for each position please give all the possible key moves
which achieve the fastest conversion.