目標
填入 1-9 的數字，使每段行列的總和符合提示，且同段內不重複。
規則
- 黑格右上角的數字是該列（↓下）的加總
- 黑格左下角的數字是該行（→橫）的加總
- 每段中的數字不可重複
操作
- 點擊白格選取，再點擊數字面板輸入
- 鍵盤直接輸入數字，退格鍵清除
Goal
Fill each white cell with a digit 1–9 so that each run's digits sum to the clue and don't repeat.
Rules
- The number in the top-right of a black cell is the column (↓ down) sum
- The number in the bottom-left of a black cell is the row (→ across) sum
- No digit may repeat within a run
Controls
- Click a white cell to select it, then click the number pad to enter a digit
- Press a digit key directly; Backspace to clear