Ascending-Descending Grid Puzzle

Fill the grid with numbers 1 to n² such that rows labeled A are in ascending order (left→right) and rows labeled D are in descending order. The same applies to columns (top→bottom).

Click on row/column labels to toggle between A and D. Click a number, then click a cell to place it.

⚠️ Circular constraint detected: rows 1,2 (A,D) and columns 2,3 (D,A) create an impossible configuration.
Select a number to place (0/9 placed):
How to Play
  1. The grid has row labels on the left and column labels on top
  2. A means ascending order (numbers increase left→right or top→bottom)
  3. D means descending order (numbers decrease left→right or top→bottom)
  4. Click on labels to toggle between A and D
  5. Click a number from the palette, then click a cell to place it
  6. Click a placed number in the grid to remove it
  7. Fill all cells with numbers 1 to n² satisfying all constraints
  8. Some label configurations are unsolvable — the puzzle will warn you!