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Cees Otto

Math Contestant

Oegstgeest, Zuid-Holland, Netherlands

  • Birthday
    Jan. 1, 1954
  • Total Attempts
    98
  • Correct Percentage
    84%
  • Total Points
    276
Problems Attempted per Day
Score per Day
Submission Activity
  • Elementary Brain Teaser - Attempted

    Yellow Paper

    Result: Correct

    Score: 0

  • Daily Math Challenge - Attempted

    Problem 1339

    Result: Correct

    Score: 7

  • Daily Math Challenge - Attempted

    Problem 1337

    Result: Correct

    Score: 9

  • Daily Math Challenge - Attempted

    Problem 1336

    Result: Correct

    Score: 7

  • Elementary Brain Teaser - Attempted

    1234 Prime

    Result: Correct

    Score: 0