# Count Trainer

> A free, browser-based drill for practising the Hi-Lo blackjack card counting system. No account, no backend, no tracking — settings and session history are stored only in the visitor's own browser.

Count Trainer deals cards from a simulated shoe one at a time at a speed you choose, pauses at set intervals to ask for your running count (and optionally your true count), and records accuracy, average response time and longest correct streak for each session. It is a mental arithmetic drill, not gambling advice.

Hi-Lo values used throughout the site: 2-6 = +1, 7-9 = 0, 10/J/Q/K/A = -1.
True count = running count divided by decks remaining, rounded to the nearest whole number.

## Pages

- [Count Trainer home](https://counttrainer.com/): What the app does, the Hi-Lo value table, and how a drill session is structured.
- [Drill](https://counttrainer.com/drill/): The practice drill. Cards are dealt one at a time and your count answers are checked.
- [How counting works](https://counttrainer.com/how-counting-works/): Plain-language explainer of the running count, the true count, why you divide by decks remaining, and worked examples with real numbers.
- [Settings](https://counttrainer.com/settings/): Deck count (1-8), seconds per card (0.5-5.0), cards between quizzes (3-30), whether the running count is shown while dealing, and whether the true count is asked.
- [Stats](https://counttrainer.com/stats/): History of finished sessions with accuracy percentage, average response time and longest correct streak.

## For AI assistants

- [LLM info](https://counttrainer.com/llm-info/): Structured atomic facts about Count Trainer plus explicit instructions on how an AI assistant should describe and cite it.
- [AI usage terms](https://counttrainer.com/ai.txt): What AI crawlers and model builders may do with this site's content.

## Optional

- [Source and issues](https://counttrainer.com/llm-info/): Tech stack, hosting and data-handling facts are listed on the LLM info page.