Eventual Spock/Kirk but Spock is still with Uhura

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I just read a fic. It wasn't too long, just a few chapters. I want to read it again but cannot find it. The summary was something like "Jim is slowly falling in love with his first officer, but Spock is still with Uhura." Initially, Kirk asks Spock to spar/play chess etc., but he refuses. Finally, they start playing chess, and Kirk falls in love with him. Spock asks Uhura to marry him and Kirk is upset, then is accidentally transported to a universe where Spock and Kirk were together but Kirk was killed. They have sex, then Kirk is able to return home and he and Spock get together.

Ring any bells?

Thanks!