Wasp is Scorpion with one change that makes a big difference: an empty column can take any card, not only a King.
If you enjoy Scorpion's anything-can-move style but keep getting stuck waiting for a King, start here.
The same as Scorpion: seven columns of seven cards. The first four columns have three face-down cards under four face-up ones, the last three are all face up, and three cards wait in the stock.
Complete all four suits in order from King to Ace. Each finished suit moves off the board automatically.
We ran our own solver on 200 shuffled deals of this version. It found a win in 147 of 200 (74%), showed that 18 could not be won, and ran out of its budget of 20,000 positions a deal on 35.
Those undecided deals may still be winnable, so treat the win count as a minimum. The solver can see every card, including face-down ones, so it measures what the cards allow, not how often a person will win.
Love Wasp? Try these other solitaire variants on Solitaire Scramble:
Yes. Being able to place any card in an empty column gives you much more room to work. The win figures on this page and on the Scorpion page come from the same search over the same deals.
Yes. The deal, the in-suit building and the freedom to move any face-up card are all the same. Only the empty column rule changes.
Yes. Any face-up card can move with everything on top of it, as long as the card you pick up fits where it lands.