Readings & Meanings:
I won at poker.
That person is someone who is determined to win.
Let's have a match of rock, paper, scissors.
Surprisingly, this kanji is organized as a 力-radical kanji. Chikara, 力, is in the bottom right corner.
The phonetic is everything else: 朕. This kanji is a pictogram of two hands, raising a boat.
Taking the idea of raising, and adding the "strength" of 力, you have someone who is raised above others by virtue of strength. Therefore, that person is the winner.