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Number Guessing Game

Guess a number between 1 and 100 in 10 tries or fewer. After each guess you'll learn whether the secret number is higher or lower.

Think you can read minds?

10 attempts · range 1–100 · higher / lower hints

0
Wins
0
Losses
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Best (attempts)

Start with 50. If 'higher', guess 75. If 'lower', guess 25. Halving the range each time (binary search) guarantees a win in ≤7 tries.

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