Easy Win, Piece Of Cake
noun, の adjective, verbal noun
A win that was an ease. That is an easy victory or an easy win. Don't hope for a lot of these, though. Hope for tough wins instead, they actually make you better.
Note that this can be used both literally, to describe an easy victory at a game or contest; or more figuratively, to describe something as “easy” in general.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
This test was a piece of cake.
”How was the JLPT5?" "Thanks to WaniKani, it was easy peasy."
That game is such a piece of cake that it's honestly boring.