Fill-In (puzzle)

[6] Since the Fill-In requires no outside knowledge of specific subjects,[7] one can solve the puzzle in another language.

To solve the puzzle correctly, the solver must find a solution that fits all of the available words into the grid.

[2][3][4] Solving a Fill-In typically amounts to searching for words of a certain length with letters in specific places.

Forgetting to do this results in "extra words" and often makes the puzzle more difficult to solve.

[1][8] In this puzzle, the entries could be listed as the number, a mathematical expression, or even an important year.

An unsolved Fill-In (left) and a solved one (right)
A "cross number" Fill-In
Another Fill-in variation [ clarification needed ]