We have now added a binary filter for Sudoku. For example all Sudokus can be searched using this link.

When we conceptualized LMI Puzzle Expo, one of the goals was to give several authors a platform. With this in mind, we have modified the displays on the Expo home page to show a maximum of two puzzles per author. This means, if you see two unsolved/latest puzzles by an author, there could be more, which can be accessed easily via the search page. If you have set a limit of 5 or 10 puzzles in the latest/unsolved sections, you will see a maximum of one puzzle per author.

Considering some of the recent activities, we have decided to impose penaltiesrestrictions on authors for modifying/deleting puzzles after the puzzles are made public.
Details here.

Considering some of the recent activities, we have decided to impose restrictions on authors for modifying/deleting puzzles after the puzzles are made public.
Details here.

The wait is over !!! Replays are here
A few quick notes:
1) All replays will be availble for 1 week from the time of solve and thereafter only top 10 replays will be retained for server storage capacity limitations. I hope this helps everyone to learn from each other similar as in Daily Contests.
2) Previously recorded replays may not be accurate (especially if you have used Undo/Redo while solving), but any new solves after today should have accurate capture of actions.
3) Solver can see the replays only if they have solved the puzzle or one day has passed after the solver has started solving the puzzle, whichever is earlier.
4) Live replays similar to Daily Contests are limited to 20 min cut-off.
5) Replay is missing if the replay data is too long for us to capture.
6) Finally, we have made several changes to penpa interface, although we have tested extensively its possible we may have missed something. If you see anything odd and observe any challenges, please let us know.
Enjoy!