Math puzzle meets drag-and-drop logic. Sorting by Shelves: Numbers throws numbered balls at you. Your job? Clear them. Two modes. Match mode or sum mode. Odd levels = match three identical numbers. Even levels = hit the target sum. Simple rules. Harder execution.
Goal is total board clearance. Drag numbered balls between shelves. Make them vanish. In match mode (odd levels), stack three identical numbers on one shelf—they disappear. In sum mode (even levels), arrange balls so their total equals the shelf's target number. Clear everything. Move to the next puzzle. Stars reward efficiency—fewer moves, better score.
Click a ball. Drag it to another shelf. Maximum 3 balls per shelf. That's the limit. Match mode? Easy. Find three 2s. Stack them. Gone. Sum mode? Trickier. See a shelf marked =7? Combine a 5 and a 2. Or a 3, 3, and 1. Math works. Balls vanish. Target clears. Repeat until the board is empty.
Odd levels use match rules. Level 1, 3, 5, 7—collect three of the same number. Even levels switch to sum mode. Level 2, 4, 6, 8—hit the target on each shelf. The game alternates. No warning. Adapt fast. Each level adds more shelves. More balls. More brain-burn.
Stars = efficiency metric. Finish in fewer moves? More stars. Don't waste drags. Plan two steps ahead. In sum mode, look for clean combinations first—a shelf marked =4 with a 1 and 3 already there. In match mode, scan the board. Count duplicates. Move the outliers last. Use the Reset button if you get stuck. No penalty. Try again.
Perfect for Logic Puzzle fans and casual math lovers. Great for kids 6-12 practicing addition. Also hits for older adults doing brain training. Sessions last 1-3 minutes. Quick mental workout. No downloads needed.
Sorting by Shelves: Numbers was developed by Flagwin Studio. Released in March 2025.