Logic Problems:

Hiking in Yellowstone

Grid-based Logic

Five friends visited Yellowstone Park this week on a hiking trip. They were overwhelmed at first by the sheer quantity of blazed trails...

BRYLine:

Beginner 1

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:

Intermediate 2

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:

Rhombuses Getrid

Segment-based geometry, hands-on

In plane Euclidean geometry, a rhombus is a quadrilateral whose four sides all have the same length. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length.

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:

Intermediate 2

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