I think both things can instantly be true. "Solitaire" is one of Karen's best performances, but the song is such a downer than I can understand she didn't like it. I also, despite it being a clear example of what Karen could do with a so-so song (which lyric wise it is), think it was the wrong choice for the third single off the album coming off a top five (#4) hit in "Only Yesterday" - especially as it was released in the Summer (early August to be exact). It's just not a radio song and particularly not a Summer radio song. It's not what you want to hear on a hot day on the beach with the radio by your side. "Happy" which is an upbeat, happy (if you pardon the pun) song was a better pick (and would have done better on the charts) and even "Desperado" (which is also a showcase for Karen's voice), would have done as well, if not better than "Solitaire".