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How well do you really know tech?

Guess logos, pick the right tool, finish system designs and outsmart JavaScript and Python. Every game ends with a score out of 100 that you can send to your friends.

Play today's mix Pick a game

8 games · 465 logos · 2314 questions

New questions every dayToday's MixTen rounds from every game. Same questions for everyone today.Play Logo HuntGuess tech logosName the tech from its logo. The last two have no colour.10 rounds · ~2 min Use Case MatchPick the right toolRead the need, pick the tool a senior engineer would reach for.10 rounds · ~3 min Stack SortSort tools by layerTwelve tools, four layers, forty seconds. Sort them fast.12 rounds · ~1 min Architecture RushComplete the designReal system designs with boxes missing. Fill the gaps.5 rounds · ~4 min Odd One OutSpot the misfitThree of these belong together. Spot the one that does not.10 rounds · ~3 min Who Came First?Tech historyTwo technologies, one tap: which one shipped first?10 rounds · ~1 min Guess the OutputJavaScript and PythonShort JavaScript and Python snippets that fool even seniors.10 rounds · ~4 min

A score out of 100

Every round pays 70% for the right answer and 30% for how fast you got there.

Same questions for friends

A challenge link carries your exact questions, so whoever opens it plays the same game.

Learn from every miss

Each answer comes with the reason, and a link to the chapter that teaches it.