Build the Sum

Two numbers. One perfect sum.

Find a pair of numbers that makes one of the target answers. Tap the two numbers and then their target to score, build a streak, and reveal fresh combinations. Explore addition, subtraction, multiplication, and division, with difficulty and timing options to suit your next round.

Number combinations · arithmetic · pattern recognition

Build the Sum gameplay in Puzzlecub’s cream-and-teal interface

Get Puzzlecub

Build the Sum is one of four games inside Puzzlecub.

Free, ad-supported play for iOS and Android.

A different kind of strategy

Chaturang icon

Chaturang.
Your move, Your Majesty.

Discover the Indian ancestor of chess in a palace court, with sculpted pieces and a richly detailed board. Challenge three AI levels or invite a friend to an online match. Learn the army, plan your moves, and make the court your own with cosmetic finishes.

Try one free match, shared across AI and online play. A one-time full-game purchase unlocks unlimited matches.

Explore Chaturang ↗
Chaturang’s palace-court board with sculpted pieces