The one I just played, I guessed in four. But the key thing I like about this format is that you're evaluating all the tension points in a position, and then figuring out what the order of operations needs to be. So on my third guess, I got all but the second move right. Then I had to work backwards and forwards to figure the rest out.
I quite liked it. Ostensibly, the same is true in a puzzle, but in this format there's more opportunity for trial and error to discover more about the position you might not have seen in the first glance.
OK, I just checked, the computer says I'm wrong. I am wrong because black can instead go Rb6 Rc8 .. Qb7 Qc4 .. Rxf6 Qxf1!.
Also, you're still at least a bit wrong because the computer thinks since black is already losing, it should go for Rb6 Re8 .. Rxe6 R8xe6, black giving up the queen for the rook in order to protect the bishop in the end. But yes, that's a computer idea.