Well by the same reasoning, puzzles from 81 to 159 don't make sense at all. It would have made more sense for 161-255 to only have outgoing TX, not be redistributed, because for example puzzle 254 would have somewhat similar difficulty as puzzle 127. But once #160 gets solved, then no one would be interested in solving 81 for a half-reward but double difficulty.
Frankly, I can't follow your logic why #81...#159 don't make sense for you.
..., because for example puzzle 254 would have somewhat similar difficulty as puzzle 127. But once #160 gets solved, then no one would be interested in solving 81 for a half-reward but double difficulty.
Why would puzzle #127 be of somewhat similar difficulty as puzzle #254? Can't wrap my head around this statement and it puzzles me. As I'm following the puzzle's progress only out of a crypto security inspired context and don't have much knowledge about BSGS and Kangaroo, maybe you're so kind to give a brief ELI12 type answer.