I’ve previously posted one Jigsaw Tridoku puzzle and it was labeled THINKER. This one is a bit more difficult (or so I think?) and it’s labeled BRAIN.
So… if you are unfamiliar with this concept, make sure to have a look at my introductory article on Triangular Sudoku. The rules and solving methods are there, too!
And then of course… this is not a plain Tridoku, instead, it is an irregularly shaped, also known as squiggly sudoku or jigsaw sudoku! 🙂
Irregular Shaped Tridoku
Enjoy! 🙂