• 2070

What will I learn?

This puzzle validates that you can manage creation and update of lists. It also uses nested loops.

External resources


Learning Opportunities

This puzzle can be solved using the following concepts. Practice using these concepts and improve your skills.


The goal of this puzzle is to make you work with a mathematical series: The Conway Sequence. Discover how to generate terms of a series interatively.

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A Conway Sequence is a funny mathematical object where an element describes the previous one, and recursively. Beware of cognitive exertion on this one!