Diagonal Number Block

In a game layout, numbers can be grouped based on their physical placement around a central number.
What Are Center-Based Numbers?
Center-based numbers refer to a specific number on the ticket that is surrounded by four other numbers positioned center, left  and right. This forms a cross-like pattern, always consisting of five numbers in total.
In a game layout, numbers can be grouped based on their physical placement around a central number. This idea forms the basis of Diagonal Number Block  a concept that highlights the strategic arrangement of numbers in relation to one another on the ticket.

These patterns are formed by numbers placed diagonally around a central number, extending in the top-left to bottom-right and top-right to bottom-left directions.

Just like vertical and horizontal neighbors, every number on a ticket layout (except those on edges) may have up to four Vertical Lines neighbors:

Top-left

Top-right

Bottom-left

Bottom-right

Many such blocks exists on a game layout, here in the sample picture below you can see 2 sample blocks, one around number 23 and one around number 34.

How they appear or fail to appear in draws may reveal useful patterns.

While not commonly used in most lottery systems, Diagonal Number Blocks can expose rare positional clustering that traditional filters miss. If several numbers within such a block are drawn together,

It’s worth noting that complete blocks (all five positions) occur very rarely in standard games, but partial formations (center + 1 or 2 side numbers) happen with moderate frequency.  
In many standard games all five numbers in a block are almost never drawn, but in a keno games they are drawn more often.

This filter can be used to filter out lottery numbers, wheel system combinations, or generated tickets.
You can filter those numbers by Diagonal Number Block. While such combinations are relatively rare, it can still be beneficial in some games to exclude them from tickets or wheel systems.

On the Filters page select the Add Filter tab, choose Diagonal Number Block main filters from the list on the left side of page.
Select Diagonal Number Block particular filter from the list on the right side of page.

Click the Add Filter button located on the toolbar. Selected filter will be added to your Game Filters list.
If you want to add more than one filter, select more filters using CTRL+A keys to select them all or hold CTRL key and select filters with mouse
 
For more detailed information about filters page please see Filters Interface topic
 

After adding the filter, you can go to the Game Filters page in the same Filters window to edit the filter properties.

The added filter will be located under the Diagonal Number Block group of all filters, with its value in the Property cell set to 1 as
 
Use

If selected, the filter will be used to apply filtering.
 

Action

Sets the filter action that determines what happens when the block condition is met. Choose your option from the Action column drop-down:

Accept

Generated tickets will include only number sets that contain valid number blocks (center plus neighbors) adjacent horizontally and vertically.

The wheel system accepts only combinations that meet the defined block condition.

Reject

Generated tickets will exclude any number sets containing such blocks.

The wheel system rejects combinations that include numbers forming a block around a center, adjacent horizontally and vertically

Property

Not used with this filter.

Number Main Type

Allows filtering by Number Main Type when evaluating number blocks.

ALL – Any blocks are considered, regardless of type.

Specific Type – Only blocks where the center and/or neighbors belong to the selected type are considered.

Number Subtype

Provides additional refinement by Number Subtype.

ALL – All blocks are considered, regardless of subtype.

Specific Subtype – Only blocks with numbers that match the chosen subtype are included in the analysis.

For example, if you require a block of numbers and set the Main Type to Contact and Subtype to Hot, then even if a valid block exists, the filter will fail unless the involved numbers qualify as Contact and Hot types in any order. So there are always 5 numbers in this block, therefore to satisfy the filter there must be 5 numbers of any combinations together of Contact and Hot numbers

Value

Not used with this filter.
There are always 5 numbers in this block to be examined

Range

Not used with this filter.

Condition

Not used with this filter.
 

Here is the example of setting up filter to filter wheel system or numbers when generating tickets:

For example in a game 6/49 and for flexible and rather fail safe filtering please do as following

Set the Action property to Reject

Set the Number Main Type and Number Subtype to All

In the end, all numbers in the wheel system or tickets containing the blocked numbers are rejected. In fact, there are only 1,100 such combinations in a game with a range of 49 numbers.

Select from the Visual Analyser menu select:

Types of Numbers > Diagonal Number Block
The result of analysis is shown on a Visual Analyser's screen

The first diagram shown at the top of screen illustrates the general occurrence of Diagonal Number Block numbers.
 

If game numbers has no numbers from this block, the diagram will display a point in row 0. If they are drawn the diagram will show a point in the row +

Simply it will show yes or no.

The upcoming diagrams will focus on numbers as the main type, examining whether they appear as Contact or Outside numbers. For all numbers to fit into one category, they must consistently belong to that type. However, this rarely happens when analyzing numbers in greater detail as their types. It might occur occasionally in Keno-type games, where 20 numbers are drawn.