HOW TO PLAY

1. On a 4 by 4 grid use the numbers 1 to 4, on a 5 by 5 grid 1 to 5, and so on.
2. Every number appears once in each row and once in each column.
3. The signs between squares must be true. < means the left number is smaller; > means it is bigger. Up and down, ∧ means the top number is smaller and ∨ means it is bigger. The open side always faces the bigger number!
4. Tip: a square smaller than its neighbour can never hold the biggest number, and a square bigger than its neighbour can never be 1.
5. Tap a square, then a number. Grey numbers are given. ✏️ Notes keep track of maybe-numbers. Broken signs and repeats turn red.
6. Solve it without hints for 3 stars ⭐⭐⭐. Every puzzle has exactly one answer.

SOLVED!