Its like, when a hair is pulled from your head you feel it. But do you know how many hairs are on your head? You don’t know! So on one hand you know about every single hair because if you pull it it pains you, but at the same time you don’t know how many hairs are there.
So knowledge and ignorance go together in that sense.
Like a librarian knows almost all the books that are there in the library and he can guide you to where the book is. But if you ask him on which page of which book what is said, he will not know. He knows where the book is and he knows the book but yet he does not know all the contents of the book.
Similarly the game can only be interesting if you don’t know the result of the game before hand. If you know who is going to win and who is going to lose then you can’t be sincere in playing the game.