Number Sequence Detective
Crack the code of the missing number
Every sequence follows a secret rule. Find the rule, and you'll find the missing number.
Logic Puzzle
Towers of Hanoi
Move the whole tower of discs to the right-hand peg. Only one disc at a time, and never a bigger disc on a smaller one!
PlanningPatienceAges 9–11 · 12+3DSample content
Getting Towers of Hanoi ready…
About this game
How to play
- Tap a peg to pick up its top disc, then tap another peg to drop it.
- You can't put a bigger disc on top of a smaller one.
- Rebuild the whole tower on the right-hand peg.
Three levels
- Easy: 3 discs — best is 7 moves.
- Medium: 4 discs — best is 15 moves.
- Hard: 5 discs — best is 31 moves.
What this teaches
To move a tower of 4, you first move a tower of 3 out of the way — and that needs a tower of 2 to move first. Breaking a big problem into the same smaller problem is called recursion, and it's how computers solve many puzzles.
Keep playing
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Flip, remember, match — and learn a fact
Find all the matching pairs in as few tries as you can. Every pair you match reveals a fun fact.