code for determinant of 3n*3n block matrix

hi, I want to calculate the determinant of each block of this 3n*3n matrix, I have 10 blocks so i will have 10 determinants;

Thanks.

[Rik]

There are at least 3 options I can think of (a loop, mat2cell, or blockproc). Did you try to implement any of these?

[Younes BELABID]

in fact this matrix is ​​an example of calculation, the size of this matrix changes, so I want to implement a code to calculate the det for any size

[Rik]

All three of the options I mentioned can be made to work for an arbitrary size array. So again: what have you tried?