An algorithm that solves a finite match 3 game to completion.
The website is hosted at https://www.match3solve.com/.
The website version of the program can also be used locally by opening the index.html file in a web browser.
The question mark button in the top right should explain anything else you need.
All the files in the website folder are used for this.
There is a .exe in the /rust-match-3-solver that you can run.
You can also compile it normally with cargo build in the /rust-match-3-solver directory and then by running the .exe in the /rust/target/debug folder.
You can get an input JSON string from the website by making the board you want to solve and then clicking export. Just paste the exported string directly from your clipboard into the prompt when asked.
The program will then ask for how many thread layers are wanted. Must puzzles can be solved very quickly with 2. If the puzzle is extremely large, you may have to use 1 to prevent it from destroying your computer.
Even though this implementation is intended to solve the larger puzzles, there is 1 known puzzle in Islands of Insight that this implementation can't solve due to the over a trillion board states. It could probably be solved if you have a thread ripper and a decent chunk of ram and time though if someone wants to try that.
The program will output a series of swaps in y1,x1 with y2,x2 format. The top left corner is (0,0). And the tile to the right of that is (0,1). The rest can be easily extrapolated from there.