---
title: "Page 190 by Yusuke Endoh, 2026-05-30"
page: 190
chapter: "chapter 6"
chapter_url: "https://poignant.guide/book/chapter-6.html"
writers:
  - name: "Yusuke Endoh"
    url: "https://whysfoxes.github.io/whysfoxes_web/people/mame/"
date: 2026-05-30
canonical: "https://whysfoxes.github.io/whysfoxes_web/entries/190-116663504869777831/"
mastodon: "https://ruby.social/@whysfoxes/116663504869777831"
image: "https://whysfoxes.github.io/whysfoxes_web/_astro/116663478052606266.CE6cwKDj_1NXpPY.jpeg"
---

# Page 190 by Yusuke Endoh, 2026-05-30

Page 190 of why's (poignant) Guide to Ruby, the paperback guest book. Written by [Yusuke Endoh](https://whysfoxes.github.io/whysfoxes_web/people/mame/). It sits in [chapter 6](https://poignant.guide/book/chapter-6.html) of the book. Scanned, optimized and posted on 2026-05-30.

## Community message

> eval$s=%!puts"eval$s=%"<<33<<$s<<33 # Yusuke Endoh!

## From the post on ruby.social

Right on the Method Missing page, @mame, Ruby committer, #TRICK champion, the man who made a #Quine Relay across 128 languages, signed in with a tiny program:

A self-printing Ruby one-liner. A #quine, written in a guestbook, by hand. Because that's how a fox, who breathes obfuscated #Ruby, leaves their name.

## Image

![Scan of page 190](https://whysfoxes.github.io/whysfoxes_web/_astro/116663478052606266.CE6cwKDj_1NXpPY.jpeg)

## Links

- [This page as HTML](https://whysfoxes.github.io/whysfoxes_web/entries/190-116663504869777831/)
- [The post on ruby.social](https://ruby.social/@whysfoxes/116663504869777831)