Eswo Karma 87 Created 2 years ago Recent Submissions 1. ▲ Chess puzzle I found in my dad's old book (ardoedo.it) 227 points · 3 months ago · 72 comments 2. ▲ The Perimeter Problem (southwind.ai) 3 points · 3 months ago · 0 comments All submissions on HN · View profile on HN