Quarterback fakes the slant to the right side (2) in the stack formation, then looks to the right side (3) running a fly route.
The check down is the Right (1) on a sideline route or the original (2) receiver across the middle.

“Zipline” (Fake Slant Fly) is an offensive 8 on 8 flag football play from Twins Stacked which is a This play is authored by Tom Loughman.

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