Logic Problems:

Super Moon Lunar Eclipse

Grid-based Logic

Last Sunday night, a super moon lunar eclipse occurred. Six friends, all amateur astronomers, were jubilant at the chance to see this rare phenomenon, which has only happened...

BRYLine:

Expert 3

Logic: Shapes & Colors

Fill out all the cells in the line with the nine colored shapes, one shape per cell, in accordance with the clues

Geomatrix:

Beginner 5

Geometry & Deduction

Discover which one of the four dots surrounding a given letter is in fact the real one so that when all dots are assigned, all the clues are satisfied

Cut-Outs:

The Origami Flexatube

DIY, Hands-on

Cut out the pattern. Glue at the opposite ends into a tube, and achieve... two different goals

Matchsticks:

Twin Cubes - View 1

Segment-based geometry, hands-on

Seventeen matchsticks are arranged into the shapes of two 3D cubes. What is the minimum number of matchsticks...

Puzzle Stories:

A Hotel Elevator

Deduction, Reasoning, Spatial

A hotel elevator allows no more than 7 people in simultaneously. Several people entered the elevator on the ground floor en route to the top, 40th floor...

Kolocells:

Advanced

Logic: Colors

An arrangement is composed of an even number of circles. Paint each circle in one of the three prime colors in accordance with the clues provided