
1) Logic puzzle 2) Popular math puzzle
Found on
https://www.crosswordclues.com/clue/kakuro

Kakuro or Kakkuro (カックロ) is a kind of logic puzzle that is often referred to as a mathematical transliteration of the crossword. Kakuro puzzles are regular features in many math-and-logic puzzle publications in the United States. In 1966, Canadian Jacob E. Funk,an employee of Dell Magazines came up with the original English name Cross Sums...
Found on
http://en.wikipedia.org/wiki/Kakuro
No exact match found.