Objective:Fill the grid with digits 1-9 so that the sum of each horizontal and vertical run matches the clue at its start, with no repeated digits in any run.
Controls:
Click a white cell to select it
Press 1-9 or click palette buttons
Press Delete/Backspace to clear
Press H for hint, Ctrl+Z to undo
Arrow keys to navigate cells
Rules:Fill the grid with digits 1-9. The clue in the top-right of a block shows the sum of that horizontal row. The clue in the bottom-left shows the sum of the vertical column. Each run must sum to the clue and cannot repeat digits.
Tips:Start with runs that have limited possible combinations. Use pencil marks to track possible digits.
Fill a grid with digits that sum to given clues. Cross between crossword and sudoku with arithmetic constraints. Number puzzle that combines addition with logic.