Logic Problems:

Writing Contest Winners

Grid-based Logic

Four high school friends loved to write and at their teacher's suggestion they entered a regional writing contest. Each of them entered a story in a different category. To their surprise and delight, all four of them...

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

Matchsticks:

Parallelogram Getrid

Segment-based geometry, hands-on

How many parallelograms of all sizes can you count in the shape? What is the minimum number of matchsticks to...

Cut-Outs:

The Checkered Snowflake Folds

DIY, Hands-on

Folding the Snowflake just along the lines between its triangle cells, form a perfect, gapless, perfectly checkered (in two colors on one of its sides), flat hexagon of the biggest size

Geomatrix:

Intermediate 5

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:

Shopping Spree

Deduction, Reasoning, Spatial

Charlotte spent her morning in downtown. After a delicious cup of hot chocolate at location #102, she visited a perfume salon at location #56 across the street...

Kolocells:

Advanced 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