It's likely that if you've been practicing German Longsword for a while, then you've encountered the "Meyer Square." This cutting diagram can be found in in Meyer's 1570 treatise, at is often used as an isolated cutting exercise. However, it is how Meyer puts the idea of the square into practice that makes it worth further investigation.

In this video we examine the play demonstrating the attacks to the openings, as it relates to the "Meyer Square".

Apologies for the lower quality of some of the sound and video footage; editing was performed using a different setup while traveling for work.