Logic Problems:

Super Moon Lunar Eclipse

Grid-based Logic

Last Sunday night, a super moon lunar eclipse occurred. Six friends, all amateur astronomers, were jubilant at the chance to see this rare phenomenon, which has only happened...

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

Geomatrix:

Intermediate 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 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

Matchsticks:

The Pyramid

Segment-based geometry, hands-on

The Pyramid is built of 15 squares. What is the minimum number of matchsticks to be removed so that…

Puzzle Stories:

Stamp Act - The Pile

Deduction, Reasoning, Spatial

Benny is back at work at the post office. Low on ink as usual. Today he has to postmark an entire pile of stamps. The pile contains many identical 3×3 sheets of stamps...

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