Wednesday 18 October 2017



Dear Puzzling Friends

You may have noticed that I have not been posting and puzzle write-ups/reviews for the past several weeks. This is because I have been busy designing my own mechanical puzzle blog site and e-store (after having attended a website design course). 

My new puzzle reviews/write-ups (from 11th August 2017 onwards) are now found at So if you do not find what you are looking for here, please check out the new site.

I am still making improvements to it as I go along. Hence I would appreciate any comments you might have regarding my new site. This blog will continue to remain as it is as I am likely to refer to it in my future articles from time time. 

I wish to thank everyone for your support these past 6 years and hope you will continue to offer your support for my new puzzle site above. 

Apart from blogging, I will also make available new puzzles for sale now and again. My new batch of puzzles for sale will be listed towards the end of October/Early November in my Puzzle Shop. Do check back regularly to see what's available.

Thank You,


Friday 11 August 2017

IPP37 Nob Yoshigahara Puzzle Design Competition

Update 24 October 2017 - Dear Reader, please check out my new puzzle blog and e-store at

IPP37 this year in Paris, France drew 66 entries from all over the world to the Puzzle Design Competition. The entries are found here. Congratulations to all the award winners and top-10 vote getters.

Below are some photos of IPP participants hard at work on the 66 entries that were laid out on tables for all to have a go at during the 3 days of the IPP.

IPP37 - Puzzle Exchange

The Puzzle Exchange is one of the two main events during IPP, the other being the Puzzle Party. And this year's Exchange took place on 5th August at the Paris Marriott Rive Gauche Hotel & Conference Centre. Unlike the Puzzle Party which is open to all participants and invitees to IPP, the Exchange is limited to the Exchangers and their Exchange Assistants. 

Typically an Exchanger will exchange up to a maximum of 99 puzzles (which no other collector has in his/her collection) with 99 other participants, hence he must prepare a minimum of 100 Exchange Puzzles (the 100th puzzle is for display for all to see during the IPP). Except for several rare occasions in the past, in practice the maximum number seldom happens and the average number of puzzles exchanged at each IPP is between 80 to 90+. This year, there were a total of 95 exchanges, which was on the higher side.

It is also worthwhile to note that the assistants play a vital role and do a great job of helping to hold the Exchange puzzles, taking photographs of the Exchanger/Exchangee, fetching bottled water/lunch etc during the Exchange (average duration of between 4 to 4.5 hours, depending on the number of people) and other sorts of tasks. And in one very unfortunate incident during this IPP, the assistant was helping the poor Exchanger glue up a substantial number of broken puzzles which were damaged in transit. Also, generally the rule is that one must be an Exchange Assistant at least once before being eligible to be an Exchanger at future IPPs.

My Exchange Puzzles all laid out and ready.
On my right is my Exchange Assistant Oli Sovary-Soos from the UK
My Exchange Puzzle SYM-353, a joint design between me and Stanislav Knot, Czech Republic

Exchange participants setting up at their assigned tables