I've seen many games that have been solved with scores that seem impossible. One example is Bugs Collection 138, level 138. The best score is 237 moves/111 pushes, and I can't see how it could possibly be solved with so few moves & pushes. Here is the level:
There is a lot to do in that level, and by the time I get to 237 moves there is quite a bit of it still unsolved.
Another example is Boxxle 1, level #1. The best score is 89 moves/31 pushes. But no matter how I play it I can't get it better than 93/31. Here is the level and my moves:
There are many games like this in all collections. How can can this be possible?