I actually have a few moots in common with one of the writers (who has no clue what's going on) but I think Sneakers is the Bside, and Checkmate is the TT. ITZY are the queens (in a chess game) and they're checkmating us. That's the concept I believe.
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Or maybe there's 2 back to back Korean comebacks and this is to drum up hype? Noise marketing? They could have lied about only one....
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OR sneakers is a collab with Jojo Siwa 
On the POSTER the name Sneakers is hiding the name CHECKMATE - I think they are releasing a pre-release title track or something.
