# Kotlin/kotlin-koans

Kotlin workshop

Repository: https://github.com/Kotlin/kotlin-koans
Canonical: https://ross.abutalabs.com/products/kotlin-koans
Language: Kotlin
License: MIT
License Family: permissive
Archived: true
Last push: 2019-07-15T09:15:04+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4549, "days_push": 2606, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2607, forks 1385 (observed 2026-08-28T04:07:04.173946+00:00)

## What it is
Kotlin Koans is a workshop consisting of 42 exercises to learn Kotlin syntax, where each exercise is a failing unit test the learner must make pass. This original repository is obsolete; the maintained content lives in kotlin-koans-edu and the EduTools plugin course.

## Use cases
- learn kotlin syntax through exercises
- practice kotlin with unit test tasks
- kotlin workshop exercises for beginners
- solve failing tests to learn a language
- self-study kotlin fundamentals

## When to choose
- you want the classic standalone Gradle-based Kotlin exercises runnable from the command line
- you prefer solving koans in a plain IntelliJ Gradle project

## When to avoid
- you want the current, maintained version of the koans (use kotlin-koans-edu or the EduTools plugin course)
- you want to solve koans in Android Studio or online
- you need a supported or updated learning resource

## Facets
- artifact type: learning-resource
- maturity: abandoned
- function: testing, developer-tools
- domain: education, programming-languages, tutorials
- platform: jvm, cross-platform
- tags: kotlin, koans, exercises, workshop, unit-tests, obsolete

## Member repositories
- Kotlin/kotlin-koans (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:04.173946+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:20:56.362897+00:00, confidence not recorded.
  - readme: https://github.com/Kotlin/kotlin-koans (fetched 2026-08-28T04:07:04.173946+00:00, sha 11a4efa26091)
- Data as of 2026-08-30T08:39:29.467469+00:00.