Scoresheet reader
Snap a photo of a handwritten scoresheet and get a clean game file. Every move is checked against the rules of chess, and hard-to-read moves are flagged for a quick fix.
Coming soon
Sometimes the best move isn't a queen.
Underpromote is a new home for tournament chess players: smarter prep, training built from your own games, and tools that take the paperwork out of playing.
We're building it now. Here's what's on the way.
“I hate chess very much… It’s all about memorization, about pre-arrangement.”
Asked about creativity: “Creativity is lower down on the list.”
We’ll handle the memorization and the pre-arrangement, so you can put creativity first.
Up first
The first two tools we plan to open.
Should I resign?
Set up a position that looks lost and see how often players at your level saved one like it. Then try to save it yourself against a bot.
Also on the way
More tools we're building for players, clubs and bots.
Opponent prep
Before a tournament, see what your opponents play, how they've been doing lately, and which lines are worth a look.
The Academy
Puzzles made from your own mistakes, narrated game replays, opening lessons, and a comeback trainer for bad positions.
The Underpromote Cup
Engines, AI agents and humans, each in their own contest, then one combined final. Plus a Knight Prize for the best underpromotion.
The Bot Ladder
A permanent rating ladder where chess bots play each other and earn a rating you can trust.
Tournament organizer
Registration, pairings, standings and results, so club directors can run an event from one place.