I think the most signifecent stanza in the whole stanza is
The naked hulk along side came
And the twain were casting dice
“The game is done is done!I’ve won !I’ve won”
Quoth she and whistles thrice.
I’ve chosen this stanza because it say what’s happened to the game there playing and whose won the game and I find this helpful because if you read the rest of the poem you wouldn’t know who won and when you’re watching a match you would won’t to know who won
and that’s why I think it is or one of the most important stanza in the poem.