Which diagram shows two runs of string linked together: A or B?
Which diagram shows two rings of string linked together: A or B?
In which loop A or B may your finger be gripped if we draw the string's ends while it is aside?
Which ring of string is unknotted: A or B?
Knots and strings were not only essential to sailors and pirates, but are still used in many industrial, occupational, recreational, and domestic settings!
Knot theory is also a branch of topology, and deals with the mathematical analysis of their structure and properties. Topological problems involving strings and knots may enhance your spatial reasoning and your sense of observation.
The aim of these puzzles is to visually check every entangled ring of string (called ‘closed curve’ in mathematics) to find if it is linked/unlinked or even knotted/unknotted.It is not so simple as it first appears!
For every tree you must mark a tent horizontally or vertically adjacent to it. No tent can be in an adjacent square to another tent (even diagonally) but a tree can border any number of tents. The numbers by each row and column tell you how many tents there should be in that row or column. Can you locate the tents?
This patchwork is in three colours - blue, purple and red. If we don’t want any same-coloured pieces to share a border, what colour will the pieces at a and b be?
Which two of these block piles could be fitted neatly together to make a perfect 3 x 3 x 3 cube?
The aim of these puzzles is to visually check every entangled ring of string (called ‘closed curve’ in mathematics) to find if it is linked/unlinked or even knotted/unknotted. It is not so simple as it first appears!
Challenge yourself with the best visual, numerical and logic problems. Topics include:
Sports & Games | Nature, Fauna & Flora | Food & Beverage | Letters & Numbers | Business | Science & Technology | Events | Abstract & Cubes | Ecology & Enviroment
Our digital puzzles are developed in HTML5, CSS and JavaScript and can be viewed across multiple devices (pc, tablet and smart phone) without requiring any plug-ins.
We offer a complete lineup of news and feature stories, commentary, photos, graphics from the world's top publishing brands including: Psychology Today • Inc. • Fast Company
