Kazu: Math Puzzle

Place the tiles on both pages, close the phone: the fold adds, subtracts, multiplies. A new challenge every day.

Kazu is a number puzzle born from the hinge of the iPhone Duo.

Numbered tiles sit on the two pages of the inner screen. The cover screen shows the target. Move the tiles, close the phone: the left page lands on the right one, and numbers that meet combine. If the folded sheet matches the target, you've solved it.

SEVEN CHAPTERS, 56 HAND-MADE LEVELS • Addition: stacked tiles add up. • Negatives: the left page counts against you. • Totals: only the row and column sums are given. • Multiplication. • Equations: the fold fills in the blanks. • Mirror: seven-segment digits, flipped by the fold. • Big numbers: two-digit dominoes, reversed.

AND ALSO • Daily challenge, the same for everyone. • Zen: endless levels, no clock. • Flash: as many right folds as you can in 60 seconds. • School: levels pitched at each school year, from age 6 to 11. • Editor: make a level and share it with a link. • Play the computer, online duels and races with Game Center, and an exquisite corpse for two.

A clean design, in light and dark mode, and ambient electronic music composed for the game.

No ads, no in-app purchases, no data collected.