Show HN: HyperSudoku – Multiplayer sudoku puzzle every 15 min

Hi All, This the second iteration of a multiplayer sudoku web-based game I built recently. Hope you like it!

Features: 1) No login needed, 2) Web app, that can be added to home-screen as needed, 3) Works on Desktop (with arrow keys supported) & Mobile, 4) Share link with friends to invite to the game

Game Rules: 1) New puzzle starts for everyone every 15 minutes, 2) Game ends if you run out of time, 3) Fill all empty tiles correctly before time runs out to win, 4) Incorrect moves will disable the board for a few seconds, with penalty increasing as you've fewer empty tiles remaining

Get started here: https://hypersudoku.app