Ordered Block
The listed digits appear as a consecutive block of cells, in exactly that order.
Parameters
| Parameter | Meaning | Default |
|---|---|---|
| cells | The marked cells, for example r1c1-r1c2-r2c2. | Required. |
| digits | The allowed or required digits, listed explicitly; repeats in the list count where the rule says so. | Required. |
Maths
Class: first-order.
The shared predicates define the notation and every named predicate.
∃p∈[0,|cells|-|digits|+1): ∀i∈[0,|digits|): D(cells[p+i])=digits[i]
There is a starting position where the contiguous subsequence of D(cells) equals digits in its listed order.
Example
---
format: open-rules
title: Ordered Block example
setter: Example
source: ""
case: ""
library: https://rules.sudoku-sleuth.com/
status: read
---
```rules
sudoku 9x9
ordered-block r1c1-r1c2-r1c3 digits [2,3]
```
Satisfies the rule: r1c1=1, r1c2=2, r1c3=3. 2 then 3 appears as a contiguous block.
Breaks the rule: r1c1=1, r1c2=3, r1c3=2. The digits occur in the wrong order.