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Red-Black

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About

Red-Black is the pure-luck cousin of Hi-Lo: call the colour of the next card, build a streak, and try to beat your best. A wrong call resets the streak to zero.

How it works

A locally shuffled 52-card deck (shared lib/cards); each card carries a red flag, so a guess is just a colour match. Best streak is saved in localStorage under kaspirius:red-black:best. No backend.

Metadata
title
Red-Black
description
Guess whether the next card is red or black and build a streak. A 50/50 browser luck game — best streak saved locally, no server.
canonical
https://kaspirius.com/red-black
updated
Last updated
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TechArticle

Same as Article, flagged as technical/developer reference material.

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  "headline": "Red-Black — game",
  "description": "Guess whether the next card is red or black and build a streak. A 50/50 browser luck game — best streak saved locally, no server.",
  "url": "https://kaspirius.com/red-black",
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  "datePublished": "2026-06-18",
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  "author": {
    "@type": "Person",
    "name": "kaspirius",
    "url": "https://kaspirius.com"
  },
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    "@type": "Organization",
    "name": "kaspirius",
    "url": "https://kaspirius.com"
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↖ kaspirius