API
To use the API, send a POST request to the URL for each function as indicated below.

Your API key can be found in your member prefences.

Get collection list
URL: https://letslogic.com/api/v1/collections
PARAMS: key

Get levels in collection
URL: https://letslogic.com/api/v1/collection/collection_id
PARAMS: key

Submit level solution
URL: https://letslogic.com/api/v1/level/level_id
PARAMS: key & solution

PHP examples here.

Member Rankings
1. Findus 1,010,496
2. Mark 969,926
3. ejsantos123 895,574
4. Ficko 795,564
5. shengli03 728,271
6. Megerian 641,227
7. Strange Yeah 578,512
8. shy1639 528,540
9. mbjenn1ngs 515,508
10. stopheart 508,141
Country Rankings
1. Germany 2,352,778
2. China 2,046,234
3. United States 1,486,419
4. Ukraine 1,137,587
5. Portugal 1,010,034
6. Slovenia 969,926
7. Romania 847,406
8. Australia 646,335
9. France 495,410
10. Croatia 345,158
Site Statistics
Puzzle Packs619
Total Puzzles51,955
Unsolved Puzzles0
Puzzle Attempts1,784,994
Puzzle Victories1,250,255
Attempt/Victory Ratio70%