The first issue appeared in 1992. It has become an annual, and Volume 34 is published in January, 2021. It over 80 big size puzzles including a few word puzzles in Japanese. All puzzles are large, so it may take a year to solve them all. The names and numbers of puzzles included are below. Kakuro 7 Slitherlink 7 Mid-loop 2 Double Choco 2 Pencils 4 Numberlink 5 Shikaku 4 Heyawake 4 Masyu 4 Tentai Show 1 Tilepaint 1 Nurimeizu 4 Ripple Effect 3 Akari 4 Yajilin 4 Hitori 3 Norinori 2 Suraromu 4 Fillomino 4 Shakashaka 4 Nurikabe 4 There are others.