Logic Masters Deutschland e.V.

6x6 sudoku rules apply: place the digits 1 to 6 in every row, column and 3x2 region.

Six of the world's most skilled sudoku solvers (you can even assume that they are perfect logicians), are tasked with filling in this grid. Each solver has been assigned an orthogonally connected region that contains the digits 1-6. These regions do not overlap with each other. Despite their prowess, the first five solvers were unable to place any single digit. Now, as the last remaining solver, you must complete the grid.

Hints:
* Inequality signs denote when a digit is greater or lower than another.
* Killer cage: the numbers in the cage sum to X.
All solvers could use those hints but you're the only one who doesn't know the value for X.

To be clear, you need to use the information that it was impossible to deduce any digit when starting with one of the other region.

Solve in SudokuPad