
If you're looking for manga similar to Susume, Karolina, you might like these titles.
Follows female professional shougi player Nayuta Touge. On breaks during her matches, Nayuta must choose the perfect meal to eat that will give her the edge to win her match. Nayuta analyzes her food options and the food decisions of her opponents just like she analyzes every move on the shougi board.
Sayaka Kiryuu is a model student, but rumors are going around that she is hanging out with adults. Her classmate Takuya Takatsuki ends up going with her one day, and finds out that what she does with adults is board games.