Søgning på underkategorier- og emner:
Bemærk: Kan leveres før jul.
Math enthusiasts of all ages will delight in these 200 riddles, based on concepts from geometry, trigonometry, algebra, infinity, probability, and logic. Includes complete solutions and 113 illustrations.
Bemærk: Kan leveres før jul.
A variety of brand-new puzzle types invented by the author and puzzle writer, Lai Van Duc Thinh.
Bemærk: Kan leveres før jul.
Bemærk: Kan leveres før jul.
Test your powers of logic with these fun Su Doku puzzles. For anyone who loves the challenge of Su Doku but manages to solve them within minutes, you can now enjoy the extended mental workout and ultimate endurance test of a five grid interlinked system.