1# Sudoku RGB23Fill a 9x9 grid with RGB symbols so every row, column, and box matches the same multiset.45## Rules67- Each **row** must contain `{1,1,1,2,2,2,3,3,3}`.8- Each **column** must contain `{1,1,1,2,2,2,3,3,3}`.9- Each **3x3 box** must contain `{1,1,1,2,2,2,3,3,3}`.10- `1`, `2`, and `3` map to `▲`, `■`, and `●`.11- The RGB hint counts show the live total for each row and column.12- Pre-filled cells cannot be changed. Row and column over-quota conflicts are13 shown on the hint counts. Only 3x3 box conflicts highlight cell backgrounds.1415Inspired by Ripeto.1617## Controls1819| Key | Action |20|-----|--------|21| `Arrows` / `wasd` / `hjkl` | Move cursor |22| `Mouse left-click` | Focus a cell |23| `1` / `2` / `3` | Fill cell with `▲` / `■` / `●` |24| `Backspace` | Clear cell |25| `Ctrl+H` | Toggle full help |26| `Ctrl+R` | Reset puzzle |27| `Escape` | Return to main menu |2829## Tips3031- **Count aggressively.** Every house wants exactly three of each value, so32 once a row already has three `▲`, the solved hint chip marks that value.33- **Cross-check rows and boxes.** Use the row and column RGB counts to narrow34 options before you look for box-only conflicts.35- **Watch where errors appear.** Hint-count errors mean a row or column is36 over quota; red cell backgrounds mean the problem is inside a 3x3 box.