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:

Advanced 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:

Beginner 3

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 Color Flex Puzzle

DIY, Hands-on

Cut out 4 cross-like pieces. Fold each one only once. Now wrap them around a square so that each row, each column and each of the two main diagonals...

Matchsticks:

Ten, Five, Four

Segment-based geometry, hands-on

The equation with Roman numerals arranged of ten matchsticks is not quite a correct one. Move just...

Puzzle Stories:

The Umbrella Connection

Deduction, Reasoning, Spatial

A secret agent is heading out this afternoon to meet a connection at a local outdoor café. The café has 16 tables arranged in a 4×4 square grid, with each table under an umbrella...

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