Sudoku The Puzzle Game Collection - In 2011, Hudson released its final puzzle game, a Nintendo 3DS game collection of four Nikoli puzzles: Sudoku, Shikaku, Hashiwokakero and Light Up. It was released in Japan on June 2 as Sudoku to 3-Tsu no Puzzle: Nikoli no Puzzle Variety (数独と3つのパズル～ニコリのパズルバラエティ～, Sudoku and 3 Puzzles: Nikoli Puzzle Variety);[21] in Europe on June 9 as Sudoku – The Puzzle Game Collection; and in America as Nikoli's Pencil Puzzle on October 25.
