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Problems

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Difficulty
Sort by
5483
Photo
5487
Ancient Civilizations
Very hard
5503
Sith vs Jedi
Medium
5532
Chocolate
Easy
5612
Five Palindromes
Easy
5615
Mundial
Medium
5616
Algorithm of Professor Ivanov
Very easy
5623
Queens in peaceful positions
Easy
5658
Pirate Chest
Very hard
5670
Crazy Bishops
5702
Hexagonal Sticks
5724
Queen's Journey 3
Easy
5729
The Queen's Journey 4
Easy
5732
Business Cards
Very easy
5734
Morphing is fun
5737
Two professors
Very easy
5745
File Retrieval
5750
King`s Poker
5752
Hidden Password
Very easy
5755
Lord of the Ring
5757
Firefighters
5762
Test
Medium
5776
Phigon
Very hard
5788
Stopped Watches
5792
Search of Concatenated Strings
Very hard
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