Input
Your games · PGNs, URLs, and live games enter the same prep pipeline.
Match file 01 · Preparation room
Prepareone moveahead.
Turn real games into a match-day plan you can trust. Import the games, expose the habits, validate the idea, and walk into the round with a plan.
Local analysis by default. AI coaching stays behind first-party server boundaries.
Position file · Source linked
Black to move8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
01
Corpus
Source games
02
Model
Tendency map
03
Novelty
Ranked idea
04
Pack
Round artifact
Evidence
Trust bands · Engine disagreement and corpus quality stay visible.
Output
Pack · The end state is an exportable match-day artifact.
01 / 05
Preparation chain
From raw games to a decision you can rehearse.
Each stage keeps the source, confidence, and next action visible, so preparation ends in a concrete match-day pack.
01
Import real games
Bring PGNs, public game URLs, or live games into one local-first corpus.
Source material
02
Model the opponent
Expose repertoire branches, move-order tendencies, and corpus confidence.
Opponent map
03
Validate novelty
Rank candidate deviations by surprise, practicality, and eval tolerance.
Prepared choice
04
Rehearse critical moments
Convert swing positions into drills and readiness checks.
Execution reps
05
Export the pack
Assemble focus lines, directives, checklist, and provenance into one portable artifact.
Match-day pack
02 / 05
Product surface
Board first, evidence always visible.
A tournament workspace built for fast decisions: the board stays central while engine evidence, prep context, and next actions remain in view.
Board centeredEvidence linkedActions visible
Production interface
Workspace / 01
A1
Prep mission timeline
Move from corpus to opponent model, novelty, critical positions, drills, readiness, and pack without losing context.
A2
Trust-coded analysis
Compare depth, engine disagreement, and reliability warnings before committing to a line.
A3
Grounded coach
Ask about the current position and get coaching tied to the board, your corpus, and saved prep.
A4
Tournament board
Custom pieces, legal-move feedback, promotion controls, sound, and keyboard navigation make analysis immediate.
03 / 05
Decision trail
Every recommendation shows its work.
ChessLM keeps source material, analysis confidence, and generated artifacts connected, so you can review why a line made the pack before you trust it.
Traceable by design
Follow the source games, confidence signals, and saved artifacts behind each match-day decision.
Corpus confidence
Source counts, duplicate handling, parse quality, and coverage stay visible before opponent modeling begins.
Validated novelties
Candidates balance frequency, evaluation tolerance, surprise, practicality, and transposition evidence.
Reviewable output
Match-day packs keep focus lines, drills, directives, checksums, and source provenance together.
Built for trust
Private preparation. Explicit boundaries.
Local-first preparation
Board analysis, corpus work, and prep artifacts stay usable without sending every move to an AI provider.
Server-side provider access
AI, billing, and account operations use authenticated first-party endpoints; provider keys never enter the browser.
Visible reliability signals
Engine confidence, provider errors, usage limits, and degraded modes stay readable instead of failing silently.
04 / 05
Pricing
Pay for preparation depth—not an empty dashboard.
Analyze positions for free. Upgrade when you need durable opponent prep, training plans, and AI coaching.
Plan 01
Free
$0/mo
A serious local analysis board with no AI credits.
- Private in-browser Stockfish analysis
- Interactive board and opening context
- Standard depth with two candidate lines
Plan 02
Tournament choice
Pro
$9.99/mo
Complete preparation for regular tournament play.
- PGN corpus, opponent prep, drills, and match-day packs
- 100 AI coach chats each month
- 3 voice coach sessions each month, up to 10 minutes each
Plan 03
Max
$24.99/mo
For heavy prep cycles and longer voice sessions.
- Everything in Pro with maximum analysis quality
- 500 AI coach chats each month
- 6 extended voice coach sessions each month, up to 15 minutes each
05 / 05 · Final position