Split Personality

Doppelgänger Sudoku: Fill each cell of the main 6x6 grid such that

• Every row, column and box contains a 0 and five different digits from 1-6

• No two rows, no two columns and no two boxes may be missing the same digit

• For each 0 in the grid, the digits missing in its row, column and box must be three different digits

• Fill each framed outer cell with the digit missing from the corresponding row, column or box.

Equal Split Lines: Dots split lines into segments with equal sums. Digits may repeat on lines but not within segments.

Example Puzzle

A 4x4 grid with the same rules. The highlighted cells show how the digit missing in the row (3), column (1) and box (4) are different.