I enjoyed playing this, the concept is cool, and I was pleasantly surprised that the game ended cleanly instead of dumping me into an endless score chase.
Given the cribbage theme, I was really surprised when 31 didn't also clear. The combination of monominos and horizontal clearing only makes it pretty difficult to greed and take risk in a conventional way; none of the chain forms I carried with me worked here other than stairs, which can give it kind of a flat texture.