Yotsuba&! Vol 10

Yotsuba loves playing games. When Daddy's the counter at hide-and-seek, he can never find Yotsuba, because he is such a good hider. And when they go to the park, Yotsuba's the best at swing-tag-shoe-races. Daddy says Yotsuba's just making up the rules as they go along, but Yotsuba thinks Daddy's just a sore loser.