Logic Masters Deutschland e.V.

Formerly known as Project B.
Happy Birthday to Bremster from the Sudoku Skunkworks.

Rules

Normal Sudoku and Killer cage rules apply.
Digits in cages must sum to the number given in the top left corner. Digits may not repeat in cages.
Black cages are regular killer cages.
Red cages are both psycho killer cages AND regular killer cages.
In psycho killer cages, the digits in the cage point to boxes in the grid, and provide a referred cell which is in the same position in both boxes. The digits referenced by the cage must also sum to the small clue in the top left corner of the cage.
For example, if r1c9 were an 8 and r2c9 were a 6 (making a valid 14 killer cage), the referred cells in boxes 8 and 6 (r7c6 and r5c9 respectively) must also sum to 14.

Links to play

F-Puzzles Link

CTC Link

Happy Birthday Bremster! from, Chilly, Riffclown, FullDeck, Missing a few cards, Virtual, Andrewsarchus, Randall, and Xeonrisq. Chilly was the primary setter for this puzzle.

About the Sudoku Skunkworks. The Sudoku Skunkworks is a collective of Setters and Solvers committed to actively exploring new and existing rulesets and constraints. Our goal is to simply make Variant Sudoku Better. Every puzzle is based on ideas or concepts presented to the group, developed and tuned into a working concept and puzzle(s). Each puzzle is then pushed through a collaborative solve to validate a solid flow and solve path. The Skunkworks account will never be used to solve, rate or comment on other puzzles