  SOS is a game similar to tic-tac-toe. We study a variety of variations of it
played on a 1-by-$n$ rectangle. On our journey we change the target string to
SOO, then study all target strings containing SSS, then go back to finite
strings and study SOSO. Then we create a variation with two target strings
SSSS-OOOO. We continue with mis\`{e}re games. After that we look at different
changes of the board: we wrap the board around, add dimension, and allow it to
expand. We end with a variation that came from the ultimate tic-tac-toe.
