Guide

Getting Started

MemDeck is a training tool for magicians and memory enthusiasts who want to master a memorized deck. It helps you drill card positions through flashcard exercises and utilities so you can recall any card at any position — instantly.

To get started, select a stack using the dropdown at the bottom of the sidebar. MemDeck supports six memorized deck systems:

• Tamariz (Mnemonica) — Juan Tamariz

  Selected
• Aronson — Simon Aronson
• Memorandum — Woody Aragón
• Redford Stack — Patrick Redford
• Particle System — Joshua Jay
• Elephant — Pierre Boc & Yves Meret

Flashcard Training

The main training mode. You're shown a prompt and must recall the matching card or position in your selected stack. Four modes are available:

• Card Only — shown a card, recall its position number
• Number Only — shown a position number, recall the card
• Both — randomly alternates between the two
• Neighbor — shown a card with a direction arrow, pick the adjacent card in the stack

Tap the gear icon to switch between Position and Neighbor modes and adjust timer settings. Use the target icon to start a structured session with 10, 20, 30, or 52-card presets, or practice free-form without a session.

Spot Check Training

Train your ability to quickly detect anomalies in your memorized deck spread. Three modes are available:

• Missing Card — one card is removed; identify which one is absent
• Swapped Cards — two cards swap positions; tap either misplaced card
• Moved Card — one card moves to a wrong spot; find the moved card

Use the gear icon to switch between modes and adjust timer settings. Start a structured session with the target icon.

ACAAN Training

ACAAN stands for "Any Card At Any Number" — a classic effect where a spectator names any card and any number, and the card is found at that exact position in the deck.

In this mode, you're shown a card and a target position. Your job is to calculate the cut depth needed to move the card to that position. Enter a value from 0 to 51. Timer and session options work the same as Flashcard mode.

Stats

Track your progress over time. The Stats page includes overview cards, an accuracy trend chart (filterable by mode and sub-mode), a per-stack breakdown table, and paginated session history. All data is stored locally in your browser.

Resources

A curated collection of books and PDFs on memorized deck theory, routines, and practice techniques from leading authors in the field.

Toolbox

A collection of memorized deck utilities for stack analysis and performance work. The toolbox includes:

• Stack Lookup — search your stack by card name or position number
• Faro Shuffle — see the effect of perfect faro shuffles on your stack order
• Card Spelling — explore how many letters each card's name has and where spelling lands in your stack
• Stay Stack Sequences — view the cyclical sequences formed by dealing every Nth card

Tips

• All your data stays in your browser — nothing is sent to a server.
• Toggle between dark and light mode using the icon in the header.
• In training modes, tap the gear icon to adjust mode and timer settings, or the target icon to start a session.
• Switching stacks doesn't lose your data — progress is tracked per stack.
• Install MemDeck as an app on your device for offline access.
• Change the display language using the language selector in the navigation menu.
• Use the share button in the navigation menu to spread the word about MemDeck with fellow magicians.
• Use the stack range next to the stack picker in the menu to train on a subset of positions. Start small and expand as you memorize more cards.
• Use the reset button in the menu to clear your data. You can reset settings only (keeping training history) or reset everything.

Why a dedicated tool?

AI chatbots can hallucinate card positions — and training with wrong answers is worse than not training at all. MemDeck uses hardcoded, verified stack data so every drill is accurate.

• Instant, tap-based drills — no prompts or waiting.
• Works offline — train backstage, on the subway, or on a plane.
• Card faces engage visual memory differently than reading text.
• Accuracy charts, session history, and streaks — AI chats have no memory.
• Free forever — no subscription required.