<p><span class="h-card" translate="no"><a href="https://mastodon.social/@whitequark" class="u-url mention">@<span>whitequark</span></a></span> reminds me of Proofsweeper which is Minesweeper but you have to prove your move is correct before you’re allowed to play it: <a href="https://github.com/A1kmm/proofsweeper" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="">github.com/A1kmm/proofsweeper</span><span class="invisible"></span></a></p>