Counter Hack puzzle

Learn JavaScript in this Hour of Code activity. Hack your way through the system by deleting viruses, solving mazes, and navigating portals to save the computer

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Activity Details

Save the computer from a malicious virus! You'll have to hack your way through the system by deleting viruses, opening doors, solving mazes, and navigating through the portals. Watch out for viruses and glitches!

Teacher Notes

These fun puzzle activities teach core programming concepts such as loops and conditionals, as well as JavaScript syntax.

Teacher Guide | Answer Key

Standards

CCSS-ELA: 3.RI.3, 4.RI.3, 3.RI.5, 3.RF.4, 4.RF.4, 3.L.4
CSTA: L1:3.CT.1, L1:6.CT.1, L1:6.CPP.1, L1:6.CPP.5, L1:6.CPP.6

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Grades	6+
Programming language	JavaScript
Experience	Advanced
Activity type	Self-led Tutorial
Length	60 mins
Runs on: Chrome (29+), Firefox (30+), Safari (7+), or Edge (20+) browser