Nikoli no Sudoku 3D - 8-tsu no Puzzle de 1000-mon (ニコリのスーパー数独3D ８つのパズルで1000問) is a Nintendo 3DS game developed and published by Nikoli, a Japanese company specializing in puzzles. It is a collection of 1000 sudoku puzzles in 3D, with eight different types of puzzles to choose from. Each puzzle has a different level of difficulty, ranging from easy to hard. Players can also choose to play in either the classic or 3D mode. The 3D mode allows players to rotate the puzzles, allowing them to view the solution from different angles. The game also features an online leaderboard, allowing players to compare their scores with others. Additionally, players can also share their solutions with others by connecting with friends or posting them on social media. With its wide range of puzzles and online features, Nikoli no Sudoku 3D - 8-tsu no Puzzle de 1000-mon is a must-have for any fan of the classic sudoku puzzle.