Show HN: Blunderless, a chess board vision trainer

Hey HN! This week I released Blunderless, a board vision trainer for chess.

I’ve been playing nonstop lately, and too often I’m still making stupid mistakes like moving the only defender of my piece and leaving it hanging, walking into stalemate, or not seeing forks.

So I built a super simple and fast exercise site to help train my eyes and prevent these silly mistakes. Simpler than chess(.)com’s puzzles, track your win/loss on each exercise, no sign up required.

I definitely want to continue adding exercises, so if you have suggestions let me know!