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6/10

Post-Mortem Pal

An AI coach that walks club-level chess players through their tournament games move by move in plain English, spots recurring mistakes, and prescribes a 15-minute daily drill plan tailored to your actual weaknesses.

Target user

club chess players rated 1400-1800 who feel stuck on a plateau

Features
  • Plain-language move-by-move walkthrough of your OTB or online games
  • Recurring mistake detector that flags the same blunder pattern across your last 50 games
  • Weekly drill plan generated from your weaknesses (tactics, endgames, time trouble)
  • Opening repertoire health check that warns when a sideline has gone cold
Why now

Chennai Grand Masters coverage is pulling casual attention to the game; ChessBase already proves club players pay €40-100 for training products, but most amateurs abandon Stockfish output as unreadable; LLMs can finally translate engine lines into human coaching.

Signals · overall 6/10
Demand
7/10

Multiple high-ranking articles (cassandrachess.com, mychessplan.com, chesstacticstrainer.com) explicitly target 1400-1800 plateau pain, and Chess.com reports hundreds of millions of registered users — a real, well-documented segment.Why You Are Stuck at Your Chess Rating (And What to Fix)Chess Rating Plateau: Why You're Stuck | AICoachess

Whitespace
3/10

The space is already saturated with near-identical products — ChessLogix ($14.99-$29.99/mo), AICoachess (€1/game), ChessGPT, ChessMentor AI, and ChessOmni all combine Stockfish + LLM plain-English coaching, and Chess.com Diamond bundles LLM game reviews.ChessLogix - AI Chess Coach | Engine Analysis & LLM-Powered Game InsightsAI Chess Coach — Personalized Game Analysis Reports | AICoachessChessMentor AI is the AI chess coach that analyses every move

Monetization
6/10

Proven willingness to pay — ChessLogix charges $14.99-$29.99/mo, Chess.com Diamond ~$14/mo, ChessBase Premium €40-100/yr — but heavy competition from already-funded rivals compresses pricing power for a new entrant.ChessLogix PricingDiamond Membership: Explained - Chess.comThe whole chess world is yours! - ChessBase

Longevity
7/10

Chess engagement has multi-decade durability and recent tailwinds (Queen's Gambit, Chennai GMs, FIDE boom), but the LLM-coaching layer is rapidly being commoditized and may end up free inside Chess.com/Lichess.Diamond Membership: Explained - Chess.com

Feasibility
8/10

The exact MVP already ships — competitors use Stockfish 17 + GPT-4/Claude with Chess.com/Lichess PGN import; building a clone in weeks is straightforward, with no technical moat.ChessLogix - AI Chess Coach

chess · 100+ searches · CAGoogle Trends · 2026-07-21 (3d ago)