Hidoku: 200 puzzles
DJAPE is the author of more than 70 puzzle books and some 17 puzzle games for Amazon Kindle, ranging from Sudoku variants such as Killer Sudoku and Samurai Sudoku to Kakuro, TriDoku, Hidoku, CalcuDoku, Futoshiki and Picross/Hanjie/Griddlers/Nonograms puzzles.  Also, Djape contributes regularly to newspapers and magazines across the globe, includingThe Washington Post. Currently Djape is working on hisPhDthesis inComputer Science. Likessailing, dancingtango,horseback riding, playingbridgeand traveling.