Sudoku

Raised as a usability problem by 4 people on Hacker News over 12 years (2013–2024), in 3 threads.

People raised many different problems with Sudoku, but no single problem has yet been raised by 3 people in 3 different months and threads.

Unreviewed issues were grouped by machine: Claude Haiku labelled each comment as a usability complaint, named what it's about and summed up the problem in a line, and a small model grouped similar problems. Nobody has checked them by hand. Expect mistakes.

The newest 4 complaints

Cannot change an entered number directly, only undo it; grid needs pointing and clicking, no arrow keys2024-01-08
Timer blinks every second, which is distracting to the commenter2017-03-29
Can't tell what the various tool icons do, and the timer pressures players2017-03-28
Grid is too small to tap accurately on a touch screen2013-01-17