• Sumaddle
  • FAQ
    • Fundamentals
    • Playing a puzzle
    • Settings
    • Levels of difficulty
    • Help and scoring
    • Pencil mode
    • Puzzle packs
    • Puzzle generator
    • Leaderboards
    • Performance analysis
    • Puzzle mechanics
    • App insights
  • Developer blog
  • Help and support
    • Troubleshooting
    • Contact
    • Report a crash
  • Privacy policy
  Sumaddle
Sumaddle

Frequently Asked Questions

Leaderboards

How can I see the leaderboards?

There are a number of ways to bring up the leaderboards:
  • After completing any puzzle -> tap the new points scored.
  • On all pages with an options menu -> select Leaderboard from the menu.
  • On the main menu page -> launch the Game Center dashboard by tapping your player symbol in the top-right corner, then navigate to the Leaderboards section.

How are the leaderboards configured?

The leaderboards are configured in a few different ways:

Challenge Trail and Puzzle Packs

These leaderboards report your latest cumulative score on a single device over all time.

Puzzle Generator

The leaderboard for the puzzle generator reports your total score across all devices since the last reset. A reset occurs every 24 hours, after which the leaderboard begins again from scratch. So every day is a new contest!

The time of reset is always 05:00 GMT, independent of daylight saving changes. When a reset happens, the state of the leaderboard is frozen and it becomes the "previous" leaderboard.

​This leaderboard is a classic hare and tortoise race - you can reach the top quickly if you are good at solving puzzles, but you can also reach the top slowly if you just stick at it and solve a lot of puzzles!

Special Editions

A separate leaderboard exists for the puzzles featured in special editions of the app. This was last used for the Anniversary Special, which was a special edition during February 2026.

I didn't play the Puzzle Generator yesterday, but I'm listed on the previous leaderboard. How can that be?

When you view the previous leaderboard for the Puzzle Generator, Game Center shows you the leaderboard for when you previously played. This may not be the same as the leaderboard that was previously active. So the leaderboard you see as being previous is not necessarily yesterday's leaderboard, but rather the leaderboard in which you last participated.

Can I contribute to the leaderboards from multiple devices?

Yes, but the way it works depends on which leaderboard is involved:
  • ​The leaderboards for the Challenge Trail and Puzzle Packs report the latest cumulative score from a single device. If you are playing the puzzles on multiple devices then you will see the score most recently posted.
  • The leaderboard for the Puzzle Generator shows your cumulative score across all devices.
With the Puzzle Generator, your existing leaderboard position is loaded when you first start playing, then it is added to. If you switch devices, the leaderboard total will normally be picked up automatically when you start playing on the new device. You can help this to happen by making sure you wake the device from sleep, or by navigating to the Puzzle Generator again from the main menu.

If I play offline, will the points get added to the leaderboard later?

Yes. The corresponding leaderboard will be updated if you re-visit the part of the app where you scored the points once you are back online.

If it doesn't seem to be working, please follow these steps:
  1. Make sure your device has network connectivity.
  2. If the app is already running, terminate it in the app switcher (double-tap the home button and swipe the app upwards).
  3. Re-launch the app and wait until it reports that Game Center sign-in was successful. There is an answer below that explains how to get signed in if it does not happen automatically.
  4. Navigate from the main menu to the parts of the app where you scored the points.

In the case of the puzzle generator, only the current leaderboard can be updated, so you need to make sure to get back online before the leaderboard resets. As soon as the daily reset has happened, the previous leaderboard is frozen and no further updates to it are possible. Any points that have not been posted before the reset happens will be lost, they are not carried over into the following leaderboard period.

I've noticed that there is a player who seems to be able to climb the Puzzle Generator leaderboard in big leaps. How is that possible?

It is possible to score more than 10,000 points with a single 9x9 puzzle, but if a player is climbing the leaderboard in much larger leaps then it probably means they are playing offline. Every time they come back online, their leaderboard score will be updated with all the points they earned while playing offline. Since it takes time to collect points, you will probably also notice long periods during which their score stays unchanged.

If you are intending to play the Puzzle Generator offline, please be aware that you need to get back online before the next leaderboard reset happens, otherwise the points that were earned will be lost. The answer above explains in more detail.

When I try to view a leaderboard it tells me I'm not signed in to Game Center. What do I need to do?

Normally, you will be signed in to Game Center automatically when the app launches, or it will prompt you to sign in. If this is not happening, please try the following:
  • Go to your device settings -> Sumaddle and check that "Connect to Game Center" is enabled.
  • Go to Game Center in the device settings and sign in there. This is also where you can create a Game Center profile, if you do not already have one.

Do the points scored in the Puzzle Generator preview get posted to the Puzzle Generator leaderboard?

Yes. The points scored by playing puzzles in the preview are posted to the leaderboard, just the same as for new puzzles that are created by the puzzle generator on demand. This also means, when the daily leaderboard reset happens, the points earned up to that moment move to the "previous" leaderboard and the points on the new "current" leaderboard begin again at 0.

If you reset the preview, your running total is also reset and starts again from 0. However, any score already posted to the leaderboard will stay there. A score already posted to the Puzzle Generator leaderboard will only be replaced by a higher score, not by a lower score.

If you purchase the Puzzle Generator, the score from the leaderboard is used as the starting position for continued play, even if the preview was reset just before purchase.

The leaderboard looks different when shown from the options menu compared to when reached from the Game Center dashboard. What's going on?

The way the leaderboard is shown depends on how the view is brought up:
  • When the leaderboard is brought up by tapping the points scored after completing a puzzle, or by selecting the Leaderboard menu item from the options menu, it is shown using a custom viewer built into the Sumaddle app.
  • When the leaderboard is reached from the Game Center dashboard, it is shown using the native Game Center viewer that is built into the iOS device.​
The scores and rankings will be the same for both styles of display. However, the Sumaddle leaderboard view may be more convenient to access. It is also better integrated with the rest of the app.

Why are there no other players on the leaderboards?

When a leaderboard is viewed in the Game Center dashboard it sometimes only shows you and your "friends" (this default is enforced by Apple). Change the context selector from Friends to Global to see all global players.

The other possible reason for why there may not be many other players is if you are looking at the leaderboard for the Puzzle Generator and the daily reset has just happened. The earlier answer about leaderboard configuration explains in more detail.

I just finished a puzzle really quickly, but the points were not added to the leaderboard. Why not?

This issue is addressed on the Troubleshooting page.

FAQ sections

Fundamentals
​Playing a puzzle
Settings​
Levels of difficulty

Help and scoring
Pencil mode

Puzzle packs
Puzzle generator
> Leaderboards
Performance analysis
Puzzle mechanics

App insights
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  • Sumaddle
  • FAQ
    • Fundamentals
    • Playing a puzzle
    • Settings
    • Levels of difficulty
    • Help and scoring
    • Pencil mode
    • Puzzle packs
    • Puzzle generator
    • Leaderboards
    • Performance analysis
    • Puzzle mechanics
    • App insights
  • Developer blog
  • Help and support
    • Troubleshooting
    • Contact
    • Report a crash
  • Privacy policy