Numberz!

Numberz! is an arithmetic puzzle in which the board is a grid of digits and the target is a number. Highlight a chain of digits that makes the required number, and the tiles in that chain are painted white. The puzzle lies in finding chains that work, and the visual payoff is watching tiles turn white as each one is found.

The twist that sets it apart is head-to-head play. In the 2-player game you and an opponent try to solve the same brainteaser, and the aim is to finish quicker than the other side. That turns mental arithmetic into a contest, and it is the reason the description presents the game as a way for kids and adults to learn to count fast.

Played alone, it works as a steady logic trainer, with puzzles that become progressively more challenging. Because the core idea is simply making a number from a chain of digits, it is easy to explain to a child and still demanding once the puzzles get harder.

1. Check the required number for the puzzle.
2. Look for a chain of digits on the grid that makes it.
3. Highlight the chain to paint its tiles white.
4. In 2-player mode, race your opponent to solve the brainteaser first.

In a two-player race, speed comes from scanning rather than guessing: sweep the whole grid once before you commit to a chain.