Logic Problems:

Stop & Go Convenience

Grid-based Logic

Harry worked the night shift at the Stop & Go convenience store off the highway, at the outskirts of Millersville. It wasn't a stimulating job, but...

BRYLine:

Intermediate 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:

Expert 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

Cut-Outs:

The Coin-Puzzle Paradox

DIY, Hands-on

Four quadrilateral pieces with coins pasted on both of their sides make a square with a hole in the middle...

Matchsticks:

The Matchstick Window

Segment-based geometry, hands-on

In this matchstick arrangement you can spot nine 1×1 squares, four 2×2 squares, and one 3×3 square...

Puzzle Stories:

Carpenter's Challenge

Deduction, Reasoning, Spatial

A carpenter enters a rectangular room 3 yards wide, 3 yards high, and 6 yards long. He needs to measure exactly 1 yard, but has none of his tools with him...

Kolocells:

Expert 1

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