The Most Complex Sudoku Ever

You can try Prasanna Seshadri's brilliant sudoku “Compounding The Co-Dependency“ here: Rules: [See the page here: ] Normal sudoku rules apply. In addition, there are some special CTC rules in this puzzle: There are 7 pairs of variants in this sudoku, totalling to 14 different rules. For each pair, one area will follow one variant and the other area will follow the other variant. It is up to the solver to determin