Logic Problems:

Friday Night D & D

Grid-based Logic

Donald and five of his friends meet every Friday night to play games, specifically an on-going roleplaying Dungeons & Dragons game...

BRYLine:

Expert 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 Checker-Flex Puzzle

DIY, Hands-on

Cut out 4 cross-like pieces. Fold each one only once. Now wrap them around a square so that a checkerboard is assembled on both sides

Matchsticks:

Trapezoid Getrid

Segment-based geometry, hands-on

How many trapezoids of all sizes can you count? What is the MINIMUM number of matchsticks which has to be removed from the arrangement in order to…

Puzzle Stories:

Outwit the Elevator

Deduction, Reasoning, Spatial

Remember our friend Larry who lives on the 50th floor? Well, recently, a new video-detecting system has been installed in his building for the elevator. This is how it works...

Kolocells:

Expert 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