Artemis BJJ (MYGYM Bristol), Can Sönmez, Bristol, UK - 27/07/2016
The shin-to-shin guard provides an additional pressure to your sweeps, giving you the very useful ability to lift compared to koala guard or de la Riva (or at least, I find it's much easier to lift with shin on shin than de la Riva). I first started playing with this after my instructor showed me some options at a private in 2015, then in more depth at Ana's seminar. Put your shin in front of their same side leg, wrapping behind that leg with your same side arm. Your other leg pushes on their knee. That will normally make them post their arm, or at least put the arm in range.
Make sure that the knee on your shin leg is at forty five degrees. If it is too high, they can push your knee out of the way and pass, so keep it low enough to prevent an easy push. Grab their sleeve, with the intention to pass their arm under their leg to your other hand, which is waiting there behind their leg. With your passing hand, grab high on the arm you just controlled, up near their shoulder. Pull down on that arm as you lift with your shin. It's much the same motion as the basic de la Riva sweep I was taught at GB Brum.
Sparring Notes: This is something I've been wanting to improve since Kev showed me back in February 2015. Ana's seminar helped me get it sorted in my head, so I think this is a technique I can incorporate better into my open guard now, something I've sorely needed. After a number of years attempting to get my open guard into shape, it feels like I'm finally beginning to get somewhere. But as ever, you have good days and bad days in BJJ. I'm writing this a couple of weeks later after using lots of shin on shin during sparring where it worked ok, which would explain why I'm feeling especially positive about it right now.