These terms govern the use of Odd Number Out — a number-logic puzzle about spotting which value breaks the displayed rule.
Odd Number Out is a free logic trainer. It contains no gambling mechanics, wagers, or monetary prizes — only a score, level counter, and three-lives system.
Each incorrect selection consumes one life and reveals the correct number. The session terminates once all three lives are spent; a new run can be started immediately via the restart command.
Rules include properties such as even numbers, multiples of three, prime numbers, perfect squares, and digit-sum divisibility. The active rule is always displayed above the grid before you choose.
The program is provided "as is" without warranty of uninterrupted operation on every browser or device.
These terms may be updated without separate notice; the current revision date is shown at the top.