The problem CrossWord solves

A Webapp where user can create crossword solve random puzzle, challenge based puzzle and even share puzzle or challenge to other users via link/social media. Solving the puzzle one piece at a time.
this all is available under one app.

Challenges we ran into

During Development of App, We have to integrate different tech stack into one bundle to complete the application. We have hard time figuring out how to nicely integrate different sections of app.
We ran into cookie Problem during hosting of app on heroku.
Also online collaboration with GitHub was pretty hard initially.