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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 5,198,550
2. Mark 4,951,560
3. Megerian 4,804,240
4. Milan 4,797,960
5. ejsantos123 4,193,720
6. mimil 3,744,270
7. Ficko 3,709,170
8. shengli03 3,262,400
9. Strange Yeah 2,969,690
10. Rincewind 2,878,930
Country Rankings
1. Germany 16,628,470
2. China 9,387,470
3. France 8,033,040
4. United States 7,311,410
5. Serbia 6,657,430
6. Ukraine 5,805,430
7. Slovenia 4,999,820
8. Portugal 4,756,040
9. Australia 4,608,100
10. Romania 4,142,690
Site Statistics
Level Collections 645
Total Levels 53,045
Unsolved Levels 29