Sudocats

If you're struggling to complete the sudoku, I'd suggest turning on the number mode as this will turn the cats into numbers and make the puzzles easier to understand for some people.

Or, you can use the following website and input the numbers that are seen to reveal the rest of the formation :

https://www.sudoku-solutions.com/

Change it to numbers by pressing and then selecting the circle with number 1, then

Level 9x9-4
574 386 129
369 521 478
218 497 653
845 712 396
132 964 587
697 853 214
981 645 732
453 279 861
726 138 945

Level 9x9-5
749 586 321
518 423 679
326 179 845
861 754 293
957 832 164
432 691 587
693 245 718
275 918 436
184 367 952

Level 9x9-6
826 397 514
743 512 896
519 864 327
431 675 982
985 243 761
672 189 435
264 738 159
198 456 273
357 921 648