About

About ProveItBro

ProveItBro is a small, independent site of solitaire and sudoku that run in your browser. Every game is built here, on its own engine — nothing is embedded from elsewhere — and every one is free to play without an account.

Who makes it

ProveItBro is made by Kirill, who designs and builds the games, writes the guides, and runs the numbers behind them. The figures in the solitaire guides that are not from published research were measured on this site's own engine.

What the site is for

Most browser card games are something to do with your hands. These are meant to be that too, but with a score that means something: classic scoring rules, a clock where it matters, and a leaderboard for every game. Hints and undo are always there. Whether you use them is up to you.

What a game here should do

  • Open instantly, with nothing to install.
  • Play fully without signing in. An account only saves scores and progress.
  • Keep your board if you close the tab.
  • Work on a phone as well as a laptop.
  • Give hints that look for the win, not just any legal move.
  • Tell you the truth about the odds — including when a deal cannot be won.

Archive

Older arcade and puzzle builds from before the site focused on solitaire and sudoku are kept playable in the archive.

Get in touch

Questions, bugs, a deal you think cannot be won: hey@proveitbro.com