DECA
Who are you playing against?
👥 Human vs Human
🤖 vs Computer
Choose a game mode:
🎯 Making a Number
✌️ Doubling
✂️ Halving
⬛ Squaring (1–12)
√ Square Root
Choose a level:
🌱 Mild
🌶 Medium
🔥 Spicy
💥 Extra Spicy
⏱ Turn timer
On
Time per turn:
20 sec
30 sec
45 sec
1 min
90 sec
2 min
Timer automatically turns off against the computer.
▶ Start Game
XIMO
Mode
Level
DECA's Turn
DECA Wins: 0
XIMO Wins: 0
New Game
DECA
—
Powers
🔄 Reroll
⏱ Restart Timer
Pick a number above
Make 10
Make 100
Make 1000
Double
Halve
Square
√ Root
XIMO
—
Powers
🔄 Reroll
⏱ Restart Timer
Pick a number above
DECA's Turn!
📖 Rules
Let's Go! →
✕
Wrong!
Lose your turn
DECA Wins!
4 in a row! 🎉
Play Again
New Game
How to Play
You are shown
3 random numbers
. Pick one by tapping it.
The operation for your mode is shown —
apply it to your number mentally.
Find the answer
on the board and tap it to claim that square.
Tap the
wrong square
and you lose your turn!
First player to get
4 in a row
(across, down, or diagonal) wins!
🔄 Reroll
— get 3 completely new numbers (2× per game).
⏱ Restart Timer
— reset your countdown this turn (once per game).
Got It!