StackSense Tetris
A Tetris-specific coaching app that ingests a FCEUX replay and an NES Tetris screenshot, identifies your current stack shape, and suggests the next 1-2 moves that maximize survival probability at your current level and gravity speed.
Intermediate Tetris players trying to push past the level-100 speed wall and reach the kill screens
- Screenshot-to-board vision model that reads your stack from any NES or modern Tetris screenshot without a replay file
- Move recommender that returns the placement maximizing 'open holes closed' and 'stack height reduced' for the current level's gravity
- Level-by-level pacing coach trained on Antithesis's Project 999999 and the modern Tetris Effect meta so the advice ages with you
- Streak journal that logs every session and shows your average 'max level' so you can see coaching actually working
The Hacker News post documents how hard it is to push past level 160 even with sophisticated tooling; an AI that ingests a single screenshot and suggests the right move is the missing bridge between video essays and hands-on practice.
Niche but real: CTM/NES Tetris World Championship scene exists, Galactoid's tools list pulled 106k visitors, and StackRabbit is described as the strongest NES Tetris AI — but the cited HN post only mustered 20 points / 4 comments, indicating a small addressable market.GitHub - AnselChang/Tetrisfish2: Ranked multiplayer NES Tetris ... ↗List of Tetris Practice Tools - Galactoid's Tetris Guides and Research ↗
Tetrisfish2 already ships replay review powered by StackRabbit, qualitative feedback on stacking decisions, and a puzzle trainer extracted from real games — essentially the exact product described. Combined with Nestrischamps (OCR/restreaming) and a dozen free Galactoid-listed tools, the niche is crowded.GitHub - AnselChang/Tetrisfish2: Ranked multiplayer NES Tetris ... ↗GitHub - GregoryCannon/StackRabbit: An AI for playing NES Tetris at a ... ↗Tetris Analysis ft. Tetrisfish - AltSci Cell ↗
Every adjacent tool surfaced (StackRabbit, Tetrisfish, Nestrischamps, Cold Clear, Blockfish, Jstris, TETR.IO trainers) is free and open source; no paid NES-Tetris coaching app surfaced, and the community is accustomed to free Discord-served tooling, making willingness-to-pay weak.List of Tetris Practice Tools - Galactoid's Tetris Guides and Research ↗GitHub - GregoryCannon/StackRabbit: An AI for playing NES Tetris at a ... ↗
Classic NES Tetris has sustained a competitive scene (CTM, World Championships, kill-screen chases) for years and the game itself is immortal, so demand for level-100+ tooling is structurally long-lived.GitHub - GregoryCannon/StackRabbit: An AI for playing NES Tetris at a ... ↗NES Tetris Trainer - GitHub Pages ↗
OCR + replay ingestion is proven feasible — Nestrischamps already does browser-based NES capture and Tetrisfish runs StackRabbit on FCEUX replays — so a screenshot-only wrapper is implementable, but accuracy on partial stacks and piece-preview inference still requires meaningful engineering.Nestrischamps: Capture your NES Classic Tetris gameplay ↗GitHub - AnselChang/Tetrisfish2: Ranked multiplayer NES Tetris ... ↗