[Johnny Brown]

My bad. The guide has Alliance at 7a+, which is fair unless you've got tiny arms. The Rib gets 7b+ though, and in the top half too!

[Percy B]

What Columns on the Tetris block do, Bonjoy? Not heard of that one, but an 8a on there might be fun!

[Bonjoy]

It's a Mick Adams' prob which starts from the bottom of Tetris and goes up and right to either finish with the slab problem (original) or the right arete. I've heard it's very good