In this special issue,我们专门和迪米特·瓦卡雷洛夫谈话，一个主要的代谢学家和拓扑学拼图设计师。Dimiter has long been interested in topological puzzles (string-wire-wood puzzles).他把这些难题叫做"topological"after Martin Gardner,他们的解决方案是基于一些非正式拓扑思维的动机。Dimiter explores how in 1992 he published in a Russian book a paper titled"How to invent a new topological puzzle".当时没有因特网，拓扑学难题的主要来源是收集了阿纳托利·卡里宁的谜题和书籍。The exclusive feature article contains an astonishing guide to the internal classification of topological puzzles based on the base puzzles and a description of different ways of combination and hiding the base principles,which in a sense presents methods of"how to invent new puzzles".This is demonstrated by a variety of examples,most of which are new puzzles.
We also present an interview with the wonderful Jean-Baptiste Jacquin,a French puzzle collector and blogger from the suburbs of Lyon,in the southeast of France.He organises a puzzle meeting every spring in Lyon,France,bringing together those that have a love of Metagrobology and documents the events and his interests on his puzzle blog: Rencontre Casse-tête Lyon.In 2010,Jean-Baptiste创建了Arteludes在线商店，对于那些对美丽感兴趣的人来说，这是一个神奇的目的地，unique hand-crafted mechanical puzzles with the craftsman Maurice Vigouroux.工艺品生产各种各样的机械拼图，手工制作的异国硬木。
Topological puzzles are qualified by some puzzlers as the most difficult.分频器瓦卡雷洛夫
除了这些，we also present an interview with Maurice Vigouroux,completed for us by Guillaume Largounez (thank you!) and an interview with the prolific wooden puzzle designer and craftsman Stephane Chomine kindly completed for us by Jean-Baptiste (thank you!还有更多！!
100 pages,130gsm，silk paper.Digitally printed.In colour throughout.绑定：完美绑定的PUR绑定。在英国印刷。The Gloss lamination cover (4 additional sides) is printed on 170 gsm,gloss paper,in colour on the outside and inside.
A4 210m x 297mm portrait.
Europe = £8
Canada = £10