Wolverine is a chess engine. Click and drag your pieces to move them. Press "t" to change Wolverine's think time, or to play a game as black. Press "i" to import a FEN position. Press "d" to see search stats. Use https://turbowarp.org/1202302970 for much better performance.
Wolverine 3 features a completely rebuilt search algorithm, significantly increasing playing strength over Wolverine 2. Thanks to the Scratch community for their support. Two resources that were especially helpful for me are the Chess Programming Wiki and ArnoHu's Scratch Chess Engine - Game of Kings forum. The new Wolverine would not have been possible without them.