... 300 Super-Difficult Puzzles from the Japanese ...
Collins Su Doku - Big Book of Su Doku 10: 300 Su Doku Puzzles
... , Logic Games, Travel Puzzles & Brain-Burning Chaos
Murdle: The School of Mystery: 50 Seriously Sinister Murder Mystery Logic Puzzles (Book 4)
Merry Murdle: 25 Fiendishly Festive Murder Mystery Logic Puzzles



