This logic puzzle game challenges players to paint grids blue or white following specific rules about numbered islands and streams. The app offers over 500 puzzles in three sizes with Time Trial modes and leaderboards.
Play with classic and randomly generated puzzles. Save progress and sync across devices. Track game history and difficulty levels. Adjust settings for custom difficulty.
Solve puzzles by filling a grid with numbers that add up to given clues. Each row and column must contain unique digits. Complete the grid by ensuring all sums match clues and no duplicates exist in any sum.
