Sorry for the late reply. There were some bugs in our game, which may make it difficult to solve the puzzle as intended. We sincerely apologize for this.
We are trying to fix it, and if you're interested in seeing what the puzzle should look like, please check this document.
https://docs.google.com/document/d/1VkMCOZvMO6lfeSD3jdJqjPj27_7UStqbXy37rBIVRQQ/...