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I understood

play mental-math puzzles

Not what you meant?

  • play number puzzles
  • play a quick logic puzzle in a browser tab
  • play a puzzle game on a phone without installing it
  • play a route puzzle that punishes crossing your own path

Tools(5)

play mental-math puzzles · play a quiet puzzle game with nothing trying to sell you anything · play a short number puzzle between tasks · do a daily puzzle that keeps programming vocabulary sharp

5 listings shown. Every result was live at its last check.

  1. Brain-training math puzzles that make learning fun!

    Why this one

    • play mental-math puzzles
    • practice grid capture vs AI

    On the record

    • Free
    • No signup

    Last checked 2 days ago

    Open↗
  2. A minimalistic puzzle game, free and open source, with no ads

    Why this one

    • play a quiet puzzle game with nothing trying to sell you anything
    • pass ten minutes on a puzzle without an account

    On the record

    • Free
    • No signup

    Last checked 2 days ago

    Open↗
  3. Find runs of numbers that add to zero before the sixty seconds run out

    Why this one

    • play a short number puzzle between tasks
    • practise quick mental arithmetic against a clock

    On the record

    • Free
    • No signup

    Last checked 2 days ago

    Open↗
  4. A daily word puzzle where the answers are computer science terms

    Why this one

    • do a daily puzzle that keeps programming vocabulary sharp
    • quiz yourself on computer science terms without opening a textbook
    • play a short word game one-handed on a phone

    On the record

    • Free
    • No signup

    Last checked 2 days ago

    Open↗
  5. Can you help solve all 90,305,804 5x6 nonogram puzzles?

    Why this one

    • solve nonogram puzzles
    • play picross grids

    On the record

    • Free
    • No signup

    Last checked 2 days ago

    Open↗