Here are 33 very difficult sudokus for those of you who accept the challenge. To solve them one must think deep, and use several kinds of logical reas …
Sudoku Collection, level 2Here are 100 carefully selected and tested sudokus. Our testing procedure has rated these sudokus as "level 2", this means t …
IELTS Skills - Free provides sample content from each IELTS Skills app. Reading, listening, writing and speaking skills are all represented in the sam …