Carlsen versus Nepomniachtchi, World Chess Championship 2021, Game 6

Analysis of Kasparov - Topalov 1999

Possibly the most brilliant move in chess history

Levitsky versus Marshall, 1912

All roads lead to Rome

Let's look at the opening of a very famous game played between Bobby Fischer and Donald Byrne in 1956:

Now, let’s compare that opening to another game, played between the great Tony Miles and Kasparov back in 1986, where Kasparov, with the Black pieces, plays the "Slav" line of the "Queen's Gambit":

Next, let's look at another game, one played in 2001 with one Luc Bergez having the White pieces, and Josep Manuel Lopez Martinez having the Black pieces:

Now, three games, one with a 1. Nf3 opening, one with playing the Slav line of the Queen's Gambit, and one playing the Grunfeld Defense. Let's look at the position after White's eighth move in the Fischer-Byrne game:

And compare that to the position after White's eighth move in Miles-Kasparov 1986:

Not to mention the position after White's eighth move in Bergez - Lopez 2001:

Point being, three different openings, but they all lead to the same position. Indeed, Fischer - Byrne is considered a Grunfeld even though it starts with 1. Nf3 instead of the "standard" 1. d4.