Unsolved Problems
- #207
Unlucky base
- #208
Just Mod it !
- #209
Harry and Magic Squares
- #210
Circle and his friend tangent
- #212
Functional Permutations
- #213
Lonely Expansion
- #214
Easy Expressions
- #215
Go for Gold
- #216
Simple Alphabet
- #217
Stick Game
- #218
Counting Hexagons
- #219
Divide and Destroy
- #220
Fibonazi
- #221
Harvey's Shot
- #222
Houdini and Picking Cards
Showing 196 - 210 of 336 problems
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