It was fought on Easter Monday, the 9th of April 1917 and is usually associated with Easter here even as that date wanders. Oddly or perhaps very predictably (I'm no expert in the wanderings of the Moon or of religious festivals) the 95th anniversary has fallen today, also the 9th of April and also Easter Monday.
I don't have a Vimy Ridge wargame in my pocket to show nor have I looked up appropriate links to video or pictures, but.........on the vintagewargaming blog there is a link to the following brilliant video clip from the British pathe archives of a proposed (or actual?) pre-WWII training aide using toy soldiers and which the commentators suggest in Wellsian fashion, could be used to replace the real thing. With something like 15-20,000 men killed, wounded or missing from the two armies over the four days, that may not be an inappropriate thought.
Now, I could probably build a canvas playing surface and 1/72nd plastic figures would work, but where am I going to find volunteers to crawl around under the table while I play?