Zendo

On the Subject of Zendo

We all learn from our mistakes. Well, except the ones that explode.

This module has a hidden rule that must be determined through experimentation.
According to this rule, patterns of shapes placed on the grid are categorized as either valid or invalid.
Once you determine the rule, you must correctly categorize five challenge patterns to disarm the module.
You may refer to the next pages for a list of all possible rules.

Determining the rule

The module starts in edit mode with an example of a valid pattern on its grid. The module will never issue a strike until you press the “Ready” button.

To edit the grid, select a shape and color from the palette on the right of the module, then touch the grid to draw that symbol. You can also press the display on the right to erase symbols instead. Press the display twice to clear the entire grid.

As you edit the grid, the buttons below the grid will indicate the validity of the current pattern. If the pattern is valid, the “Y” button will light up. Otherwise, the “N” button will light up.

Additionally, you can press the “Y” button to show a random example of a valid pattern, and the “N” button to show a random example of an invalid pattern.

Disarming the module

When you think you know the rule and are ready to disarm the module, press the “Ready” button to switch to challenge mode.

The grid will display a pattern. If the pattern matches the rule, press “Y”, otherwise press “N”. Repeat until the module is disarmed.

If you are unsure of the rule, you can press “Ready” again to safely return the module to edit mode.

If you make a mistake, the module will strike and return to edit mode with a new rule.

For the table below:

[COLOR] - Red, Blue, or Yellow.
[SHAPE] - Circle, Square, or Triangle.

Rule List:
Every [COLOR] symbol is [SHAPE].
Every [SHAPE] is [COLOR].
There is a [COLOR] symbol that is [SHAPE].
There is a [SHAPE] that is [COLOR].
No [COLOR] symbol is [SHAPE].
No [SHAPE] is [COLOR].

Every [COLOR] symbol is in the [top/middle/bottom] row.
Every [SHAPE] is in the [top/middle/bottom] row.
Every symbol in the [top/middle/bottom] row is [COLOR].
Every symbol in the [top/middle/bottom] row is [SHAPE].
Every blank cell is in the [top/middle/bottom] row.
There is a [COLOR] symbol that is in the [top/middle/bottom] row.
There is a [SHAPE] that is in the [top/middle/bottom] row.
There is a symbol in the [top/middle/bottom] row that is [COLOR].
There is a symbol in the [top/middle/bottom] row that is [SHAPE].
There is a blank cell that is in the [top/middle/bottom] row.
No [COLOR] symbol is in the [top/middle/bottom] row.
No [SHAPE] is in the [top/middle/bottom] row.
No symbol in the [top/middle/bottom] row is [COLOR].
No symbol in the [top/middle/bottom] row is [SHAPE].
No blank cell is in the [top/middle/bottom] row.

Table continued on the next page...

Every [COLOR] symbol is in the [left/middle/right] column.

Every [SHAPE] is in the [left/middle/right] column.

Every symbol in the [left/middle/right] column is [COLOR].

Every symbol in the [left/middle/right] column is [SHAPE].

Every blank cell is in the [left/middle/right] column.

There is a [COLOR] symbol that is in the [left/middle/right] column.

There is a [SHAPE] that is in the [left/middle/right] column.

There is a symbol in the [left/middle/right] column that is [COLOR].

There is a symbol in the [left/middle/right] column that is [SHAPE].

There is a blank cell that is in the [left/middle/right] column.

No [COLOR] symbol is in the [left/middle/right] column.

No [SHAPE] is in the [left/middle/right] column.

No symbol in the [left/middle/right] column is [COLOR].

No symbol in the [left/middle/right] column is [SHAPE].

No blank cell is in the [left/middle/right] column.

Every [COLOR] symbol is next to a [SHAPE].

Every [SHAPE] is next to a [COLOR] symbol.

There is a [COLOR] symbol that is next to a [SHAPE].

There is a [SHAPE] that is next to a [COLOR] symbol.

No [COLOR] symbol is next to a [SHAPE].

No [SHAPE] is next to a [COLOR] symbol.

Table continued on the next page...

Symbols of the same color are the same shape.

Symbols of the same shape are the same color.

Symbols in the same [row/column] are the same color.

Symbols in the same [row/column] are the same shape.

Symbols in the same [row/column] are the same color or shape.

Adjacent symbols are the same color.

Adjacent symbols are the same shape.

Adjacent symbols are the same color or shape.

Symbols of the same color are different shape.

Symbols of the same shape are different color.

Symbols in the same [row/column] are different color.

Symbols in the same [row/column] are different shape.

Adjacent symbols are different color.

Adjacent symbols are different shape.

Symbols of the same color form connected cluster.

Symbols of the same shape form connected cluster.

Identical symbols form connected cluster.

There is a [row/column] that is filled with [COLOR] symbols.

There is a [row/column] that is filled with [SHAPE]s.

There is a [row/column] that is filled with blank cells.