How to Play

The Basics

The number at the top is the target. Tap a number, tap + − × ÷, then tap another number, and the two merge into one tile. Keep going until a tile hits the target exactly.

Here's the Easy puzzle from the video below, solved in three moves:

Target: 51
Your numbers: 5257566

Step 1: 6 ÷ 6 = 1
Step 2: 25 − 1 = 24
Step 3: 75 − 24 = 51 Solved!

The 5 was never needed. Every answer becomes a new tile you can keep using, like the 1 and then the 24.

The same puzzle played, with one undo along the way.

Good to Know

Double-tap a merged tile to split it back. Double-tap the target to start over.
Answers must be whole numbers above zero.
On Easy and Medium, use only the numbers you need. Hard and Extreme use all five.
Stuck? Give Up shows you one way to solve it.

Levels & Scoring

Four levels, Easy to Extreme, in any order, as many as you like each day. The clock starts on your first tap, so thinking is free. Solve in under 10 seconds for a flame, or under 5 for the rarer one.

A shared day looks like this - one line per level, easiest to hardest:

Tip: work backwards too. Ask what divides into the target, or what's one small hop from it, then see if your numbers can build that.