Logic Problems:

Summer Vacations

Grid-based Logic

Many of the employees at Gadgetworks, Inc. take summer vacations with their families and this year was no exception. Larry Shumacher, the manufacturing manager, shook his head as he looked at work schedules for the next month. He had employees on vacation every week...

BRYLine:

Advanced 2

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 4

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 Double Flexa-Tube

DIY, Hands-on

Cut out the pattern. Glue at the two opposite ends into a… double tube. Achieve... two opposite goals

Matchsticks:

The Wigwam

Segment-based geometry, hands-on

Ten matchsticks are arranged into the shape of a wigwam. Providing no damaging, loose ends and overlapping of the matchsticks are allowed, can you divide the wigwam shape into...

Puzzle Stories:

Postage Stamp Dilemma

Deduction, Reasoning, Spatial

Today Benny’s post office got a new shipment of stamps with a new design: they’re printed in perforated 4×4 sheets instead of 3×3 sheets...

Kolocells:

Intermediate 3

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