Logic Masters Deutschland e.V.

Criteria: The numbers in each row, column, and bold-lined square must not be repeated;

No elephant: The values of moving two squares forward in each direction diagonally (elephant moves across the field) are not the same;

Arrow: The number inside the circle is equal to the sum of the numbers on its arrow;

Letters: The letters in the diagram are all numbers from 1 to 9. Identical letters represent the same number, while different letters can either be the same or different. Specifically, F, C, and E are consecutive and increasing numbers, and X is not equal to A, nor is Y equal to B;