Logic puzzles

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A place for any kind of logic puzzles,like something CA - related,knights and knaves (An island inhabited by two types of people:knights who always speak truth and knaves who always lie),sudoku and similar.
The first one:
Find the smallest possible (by number of cells) parent of this pattern:

Code: Select all

x = 14, y = 13, rule = B3/S23
2bo4bo4bo$2bo2bo3bo$4b3obobo$obo5b2obo$bo4b2o2bo2bo$2b2o4bo$2b3o3bo2bo
$3o3b2o2b2o$3bo3bob2o$4bo$bo2bo2bobo2bo$10bobo$2b2o2bo!
/code]

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Maybe not the best start.
I will try to make something new soon.

[BokaBB]

Hey ya. Gonna reuse this thread if you allow.

Let's start with something well-known, such as Sudoku.

WARNING: Quite hard.

[May13]

Hey ya. Gonna reuse this thread if you allow.

Let's start with something well-known, such as Sudoku.

WARNING: Quite hard.

Is my solution correct? I solved this Sudoku in about an hour using only Microsoft Paint.

[get_Snacked]

that puzzle actually seems symmetrical.