Magic & Math with Cards

Lecture 16 · Performance

Your first performable colour-window routine

Video in production

This lecture is still face down. Its script is written; filming and animation are under way.

Meanwhile, play the trick

What you will learn

Prepare, perform and diagnose a 16-card four-bit colour-window routine, including its lack of error-detection redundancy.

The trick in this lecture Your First Colour-Window Routine Cut sixteen cards, deal four, and say only their colours. All four are named. Play the trick

Before this lecture

Ideas you will use

  • Black 0 red 1 convention

In this lecture

An outline of the lecture, scene by scene, with the statements that appear on screen. It follows the draft script, so details may change in production.

  1. Present transparent small packet routine

    At the table
    • 16 cards; 4 places
    • Cuts only
    • A reference sheet is allowed

  2. Run actual lookup and reveal

    At the table
    • Check report before reveal
    • Read selection order 1→4

  3. Show physical preparation and teaching adaptation

    At the table
    • Teaching adaptation: one 16-card cycle
    • Black 0; red 1
    • Full prepared order will be provided

  4. Teach exact stack and verify windows

    • 0000111101100101
    • AC 2C 3C 4C AH 2H 3H 4H 5C 5H 6H 6C 7C 7H 8C 8H
    • 16 cyclic windows; 16 distinct words

  5. Make lookup direction explicit with sample

    • 0010 →6C,7C,7H,8C
    • Reverse report 0100: another valid address
    • Selection order=report order=decoder order

  6. Demonstrate undetectable report error

    • Actual 0000
    • Reported 0001
    • Every word valid: no automatic error detection

  7. Train accurate preparation and decoding

    • Prepare →verify →perform
    • 1000 →8H, AC,2C,3C
    • Reset without changing the cycle

  8. Companion full practice round and closing retrieval

    • Level 1: prepare
    • Level 2: decode
    • Level 3: diagnose wrong reports

Companion interactive

Build correct stack and decode any four-card window without order errors.

The trick page is this lecture’s companion: be the spectator, lift the curtain to step through why it works, try the challenge, then learn the handling.

Open Your First Colour-Window Routine

Sources

How these sources were used
  • Colm Mulcahy, Mathematical Card Magic: Colour pattern effect adapted to one 16-card cycle, with colours complemented to maintain course 0 black/1 red convention.