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thewordunscramblertool.com
Hard1 player·5–10 min

Nerdle

Wordle for maths — guess the hidden equation in six tries using numbers and operators.

Nerdle applies the Wordle mechanic to mathematics. The hidden "word" is an eight-symbol equation using the digits 0–9 and the operators +, −, ×, ÷, and =. Each guess must be a valid, correct equation (both sides must balance). Colour feedback works identically to Wordle — green for right symbol in the right position, purple (yellow equivalent) for right symbol wrong position, black for absent.

The rules

  • Your guess must be a valid arithmetic equation — you cannot enter random strings of numbers.
  • The = sign always appears exactly once and never as the first or last symbol.
  • Standard order of operations applies: multiplication and division before addition and subtraction.
  • "Mini Nerdle" uses six-symbol equations for a shorter puzzle; "Instant Nerdle" reveals the answer immediately without colour feedback for a pure deduction challenge.

Strategy tips

  • Structure your first guess to cover as many different digits and operators as possible. E.g. 12+34=46 tests 1, 2, 3, 4, 6, +, = in one guess.
  • Once you know which digits are present, focus on constructing valid equations that use those digits in different positions and combinations.
  • Remember that digits can repeat — both sides of the equation might use the same number.
  • The = sign's position gives you crucial structural information — if it's green, you know the length of both sides of the equation.
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