Killer Sudoku and other puzzle variants
DJAPE is the author of over 30 puzzle books, ranging from Sudoku variants such as Killer Sudoku and Samurai Sudoku to Hidoku, CalcuDoku 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, playingbridgeand travelling.