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Problems

Brute force
Difficulty
Sort by
6991
2D-Solar System
Very hard
7014
Battle for Silver
7051
Symmetrical Patterns
7066
Wall
7111
Terusky
Very easy
7128
Rubik's Cube
7192
Rectangle
Medium
7199
Cryptogram
Very hard
7201
Game "Row of Chips"
Medium
7202
Pebbles
7216
Mixing Colours
Very hard
7229
The Gnome and the Coins
Medium
7231
Colored cells
Hard
7237
Beautiful Numbers
Medium
7249
Infinite Planes
Easy
7254
Segments
Very easy
7286
Lexicographic order
Hard
7297
Marisia and Stepan
Very hard
7300
Code Lock
Hard
7304
Code lock
Easy
7306
Chess Masters
Easy
7309
Deal!
Easy
7375
Barrel
Easy
7376
Exchange of digits
Hard
7386
Trees
Medium
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