Logic Masters Deutschland e.V.

After he finished first more than 10 years ago at the Youth Olympic Games in Singapore, Sándor Tótka, a now 27-years-old sprint kayaker became the fastest at the Tokyo Olympic Games in K-1 200m (his time was 35:035), winning the first ever olympic gold medal for Hungary in this category.

Normal Sudoku rules apply. Each row, column, and 3x3 box contains each number from 1 to 9 exactly once.

Killer Sudoku rules apply. The sum of all numbers in a cage (marked with dashed lines) must match the small number printed in its corner. No number appears more than once in a cage.

Little Killer Sudoku rules apply. Digits in a diagonal pointed at by an arrow, sum up to the number behind the arrow. The digits on a diagonal may repeat.

Renban Sudoku rules apply. The purple lines contain sets of consecutive digits in any order, without repeats.

The gold medal is an odd digit. The coloring is just design.

The puzzle is also available online.