That’s a great question! And unfortunately, no, we can’t guarantee that each hand is solvable today.
Generally that should be (theoretically) possible to achieve, but it would require a very substantial amount of work to accomplish. Many solitaire variants have been proven to be NP-complete problems, and most likely this variant also falls into that category. Roughly speaking, what that means is that the only way to check if a specific shuffle/deal is solvable is to attempt each move until you win, or you’ve exhausted all move options and know that it’s not solvable. It’s possible that we could cut some corners, but we’d need to read some scientific papers on that topic to see if any of the corner cutting techniques could be applied to BBB specifically. So, to do the actual verification, we’d need to write an automatic solver program, and run it against every possible deck shuffle (for each difficulty mode we support). This is a lot of work to write the solver program (and make sure it works correctly), and would probably take weeks to just execute the solver against all these possible shuffles and difficulty modes (on a normal computer). If we ever end up having some free time, we might go down that rabbit hole, but until then, we have no easy way to check. As you can probably see I’ve already seriously considered embarking on this journey…
The solo slider controls the trumpet solo audio track track.