808s&Genetics

808s&Genetics is a puzzle game that combines nonogram gameplay with genetics. You solve puzzles using concepts such as genotype, phenotype, single-gene inheritance, polygenic inheritance and sex-linked inheritance. The game assumes a basic understanding of high school genetics.

Levels and puzzles

The game has 96 levels: 32 each for single-gene inheritance, multi-gene inheritance and sex-linked inheritance. The questions are computer-generated, but each level has been manually selected to exclude puzzles that rely too heavily on enumeration. Almost every step can be deduced logically, and completing all levels takes 4–12 hours.

Reasoning tools

Sex-linked inheritance puzzles include settings such as being your own offspring and parent, or having your parents be your offspring. These settings provide additional reasoning clues. An annotation button includes “0” and “1” options for use in sex-linked inheritance questions.