Riddles, one at a time
Tangled Cords
Which switch lights the star lantern?
Video · Easy
Challenge link
SWITCH C
Follow cord C over and under: it ends at the star.
Square, Circle, X
How many closed areas can you count?
Each corner outside the circle is split by a diagonal.
Video · Hard
Challenge link
12
4 slices inside the circle, and each corner is cut in two: 4 + 8 = 12.
Inside the Loop: The Trapped Gem
Which gem is INSIDE the loop?
Count wall crossings on the way to the edge: odd means inside.
Video · Hard
Challenge link
B
Gem B is inside; A, C and D sit in pockets that open to the outside.
