PuzzleLab Number Stacks

Number Stacks is a daily number puzzle where your mission is to move digits between stacks until you group all matching numbers together in 10 moves or fewer.

You start with several vertical stacks of digits, each containing a mix of numbers. Tap a stack to select it, then tap another to move the top number. Your goal is to organize the chaos so that every stack contains only one repeating digit.

• Tap a stack to select it, then tap another stack to move the top digit.
• You can only move a number onto an empty stack or onto a matching number.
• Complete all groupings within 10 moves to solve the puzzle.
• A new puzzle drops every day.

Why we like it:

• ✅Simple rules but genuinely tricky execution that rewards planning ahead.
• ✅The move limit keeps it tight and replayable without feeling punishing.
• ✅Perfect length for a coffee break or a quick brain warm up.

Hint: Before you tap anything, scan for numbers that appear least frequently. Clearing space early by isolating rare digits gives you room to maneuver when things get crowded.