Logic Problems:

Cabins for Rent

Grid-based Logic

Five couples decided to camp in the mountains for their last camping trip of the season before winter settled in. In deference to the chillier weather, they rented cabins this time instead of camping out in tents...

BRYLine:

Intermediate 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:

Advanced 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:

Tetramid

DIY, Hands-on

Cut out, fold along the dotted lines, and glue 4 pieces. Using all 4 pieces, build a regular tetrahedron

Matchsticks:

Twin Cubes - View 1

Segment-based geometry, hands-on

Seventeen matchsticks are arranged into the shapes of two 3D cubes. What is the minimum number of matchsticks...

Puzzle Stories:

The 4P Toothpick Challenge

Deduction, Reasoning, Spatial

Patrick, Paul, Peter and Phillip are drawing toothpicks. One of the boys is holding four toothpicks in his hand without revealing which one is the shortest...

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