Logic Problems:

Lunchtime Birthdays

Grid-based Logic

Four friends met for lunch in the cafeteria yesterday. They hadn't seen each other in quite awhile and were eager to meet and catch up. During the course of their conversation...

BRYLine:

Advanced 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:

Intermediate 1

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

Puzzle Stories:

Kisses & Handshakes

Deduction, Reasoning, Spatial

Kent and Hannah were jointly viewing their recent family album from the previous year. They just spotted a series of photos...

Matchsticks:

Pointing Arrows

Segment-based geometry, hands-on

Two matchstick arrows are pointing into two opposite directions. Move three matchsticks to make...

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

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