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Blog
Hotkeys for Run, Check and Stop, New Translations and more!

CheckiO keeps to evolve! Move with us to new functionality, knowledge and interesting missions!
New Array Methods, Alternative Static Typing and JQuery Release.

Get to know something new to become a better coder!
TS 5.0 and new Missions are here!

TS 5.0 implemented at CheckiO, new missions and interesting articles.
This week's missions: Escape and The Greatest Common Divisor

You have to get your hands on these challenges!
This week's missions: Domino Chain and Currency Style

Work on your progress with our latest missions.