Триесет и еден шесто

 

 

 https://www.mathplayground.com/logic_light_rays.html

 https://www.mathplayground.com/break_the_code.html

https://www.mathplayground.com/tetrasquares.html

https://www.mathplayground.com/logic_reflector.html 

https://www.mathplayground.com/logic_one_clown_standing.html