Diversion also called MathDoku

• Popular puzzle invented in Japan
• Puzzle whose name means "cleverness squared"
• Numbers game
• Perhaps Bruce doubles as 6's relative
• Math puzzle
• Sudoku-like puzzle
• Newspaper puzzle suggested by this crossword's shaded squares

Wikipedia Word definitions in Wikipedia
Kenken may refer to: KenKen puzzle Kenken (bell) , of Kouroussa in northwestern Guinea