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Problems

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Difficulty
Sort by
2372
Cube Coloring
Very easy
2377
High security
Medium
2384
Sorting Game
Very easy
2390
Partitions into summands
Very easy
2394
Number
Medium
2395
Semiperfect number
Medium
2399
Book
Easy
2409
Couldn't do without swearing...
Hard
2423
Divisibility by 4
Easy
2433
Miracle Tree
Easy
2444
Game of Chips
Very easy
2483
Word cutting
Hard
2491
Day of Abundance
Hard
2500
Guess the number
Easy
2502
Dessert Preparation
Easy
2504
Kill the pig
Very easy
2509
The post office
Very easy
2529
Tudoku
Medium
2530
Traveling Queen Problem
Very hard
2534
Relocation
Very easy
2539
Chorus
Very easy
2548
Symmetrical Glade
Easy
2552
Roman numerals
Very hard
2554
Magic Square
Medium
2591
Crop Circles
Very easy
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