Logic Masters Deutschland e.V.

Hopefully these are all familiar variants for most of you and you won't have to constantly read the constraint rules. I enjoyed creating this extreme variant and will likely try more extreme variant puzzles like this in the future - hopefully with more enjoyable logic. Hope you enjoy this one though!

Normal sudoku rules apply

Arrow: The digits along each arrow must sum to the digit in the circled cell.

Palindrome: Digits along a palindrome line read the same forwards or backwards.

Thermo: Digits along each thermometer must increase starting from the bulb end.

Odd/Even: Cells with a filled circle must be odd. Cells with a filled square must be even.

Killer Cage: The digits in a cage must sum to the number printed in its corner. Digits may not repeat within a cage.

Kropki: A black dot between cells indicates cell values with a 2:1 ratio. A white dot between cells indicates cells with consecutive values. Not all dots are shown.

Little Killer: Digits along diagonals pointed to by arrows outside the grid must sum to the number listed.

XV: Adjacent cells connected with an X must sum to 10. Adjacent cells connected with a V must sum to 5.

Sandwich: Clues outside the grid show the sum of digits sandwiched between the 1 and the 9 in that row or column.

Play on f-puzzles

Play on CTC