On the Subject of Blank Card

A great magician would do this without a manual.

• This module contains a clear button on the top, a canvas on the left, and a card on the right.
• Draw the card using the canvas to disarm the module.

Determining the Card

However, the card is face down and it will not allow you to turn it face up. Fortunately, this card comes from a marked deck. Find the circle that has a line through it and use its properties to determine what the card is.

Spade	Heart	Club	Diamond

Drawing the Card

To draw the card, create 4 lines forming a square on the canvas. To draw a line, click one of the white dots and drag it over to another white dot. Depending how you draw the 4 lines will form the card.

Use the card on the module in the table below to obtain 4 numbers (in which all digits correspond to the 4 dots on the module in reading order). For each obtained number, draw a line starting at the first dot in the pair and ending at the second dot in the pair.

Note: when drawing a King, draw all lines in one stroke, otherwise never draw all lines in one stroke.

	A	2	3	4	5	6	7	8	9	10	J	Q	K
Spade	12 24 34 13	12 24 13 43	12 24 34 31	12 24 13 34	12 34 13 24	12 34 24 13	12 34 13 42	12 34 24 31	12 13 24 43	12 13 34 24	12 13 24 34	12 13 34 42	12 24 43 31
Heart	13 12 24 43	13 12 34 24	13 12 24 34	13 12 34 42	13 24 34 21	13 24 12 43	13 24 34 12	13 24 12 34	13 34 12 24	13 34 24 21	13 34 12 42	13 34 24 12	13 34 41 12
Club	24 34 13 21	24 34 12 13	24 34 13 12	24 34 12 31	24 13 12 43	24 13 34 21	24 13 12 34	24 13 34 12	24 12 34 12	24 12 12 43	24 12 34 21	24 12 12 34	24 43 31 12
Diamond	34 13 12 24	34 13 24 21	34 13 12 42	34 13 24 12	34 12 24 13	34 12 13 24	34 12 24 31	34 12 13 42	34 24 13 21	34 24 12 13	34 24 13 12	34 24 12 31	34 42 23 31