Took three tries before making it all the way up Katahdin, each attempt was on a different route.
Also took two tries to get up Coe.
I made it part way up the North Tripyramid slide then gave up, but I just walked around to the other trail and went up along the ridge to the north, so that's not really a failure, just a change of route.
At least a couple are pending: We didn't go for The Horn last year with rain seemingly on the way; turned around after summiting Saddleback. Five weeks later, we made it up North Brother, but didn't think it wise to go for Fort in the sleet.
The three of us did Donaldson and Emmons last July 25, but ran out of time to try an attempt of Seward. Cameron and I did Marcy and Skylight together the year before, but didn't have enough time to try Gray. I don't know if those count as failed attempts if we manage to climb two mountains but miss out on even trying for a third.