Floating Mask. How to?

[agenta]

Hi, Again,

Let`s do the math:

According to hashcat:
Mask1: “?a?l?l?l?l?l?l?l” has 308 915 776 combinations.
Mask2: “?a?u?l?l?l?l?l?l” has 308 915 776 combinations.
Mask3: “?a?a?a?a?a?a?a?a” has 735 091 890 625 combinations.

Let assume that I want “?a” to float in mask1 on all position it is equal to run 8 different masks (?a?l?l?l?l?l?l?l, ?l?a?l?l?l?l?l?l, ?l?l?a?l?l?l?l?l, ?l?l?l?a?l?l?l?l  ….. ?l?l?l?l?l?l?l?a). The result will be:

308 915 776 * 8= 2 471 326 208 (~0,33 % from Mask3).

If I want “?a” and “?u” to float then we have 8 * 7 = 56 different masks for execution. Total of combination will be:
308 915 776*56= 17 299 283 456 (~ 2,353% from Mask3).

I don’t see your logic magnum.

Creating a dictionary for length of 8 char is ok, but for length of 12 char I think it is unpractical.

Thank you for your answers.