Understand — Keep Talking and Nobody Explodes Module

On the Subject of Understand

Now you can understand the understood.

The module generates the rules as follows:

One “START ON” type rule (with only a 10% chance to be a “Start in [POSITION]” rule).
One “END ON” type rule.
One “VISIT” type rule.
One “AVOID” type rule.
With a ~66.6% chance, another “VISIT” or “AVOID” type rule.

Type	Rule
START ON	Start on [SHAPE].
	Start on empty cell.
	Start in [POSITION].
END ON	End on [SHAPE].
END ON	End on empty cell.
VISIT	Collect at least one [SHAPE].
	Collect exactly one [SHAPE].
	Collect all [SHAPE]s.
	Visit at least one empty cell.
	Visit exactly one empty cell.
	Visit all empty cells.
AVOID	Avoid [SHAPE]s.
AVOID	Avoid empty cells.

[SHAPE] table
Triangle	Up-triangle
	Right-triangle
	Down-triangle
	Left-triangle
4-vertices shape	Square
4-vertices shape	Diamond
	Circle
	Star
	Heart

[POSITION] table
Top-left corner	B1	C1	Top-middle cell	E1	F1	Top-right corner
A2	B2	C2	D2	E2	F2	G2
Middle-left cell	B3	C3	Center	E3	F3	Middle-right cell
A4	B4	C4	D4	E4	F4	G4
Bottom-left corner	B5	C5	Bottom-middle cell	E5	F5	Bottom-right corner

50% chance to be a corner cell; 25% chance to be the center cell; 12.5% chance to be a middle cell; 6.25% chance to be one of the other coordinate cells.