Analysis quality

How the review earns your trust.

Every conclusion is supported by verified chess evidence and additional checks, so the final review remains clear, consistent, and honest about uncertainty.

Updated July 19, 2026

Deep analysis, carefully checked

Every position is analysed before the review is created. Critical and complex moments receive additional checks, and the final values are compared with the supporting chess lines before they are shown.

The result is one consistent picture of the game: evaluation, accuracy, performance, phases, move quality, strengths, and coaching all reflect the same carefully verified analysis.

Every position is examined in context

Each move is evaluated as part of the full game, not as an isolated number. Tactical turns, critical decisions, and uncertain classifications receive deeper confirmation before the review is final.

Additional controls check legal alternatives, evaluation stability, forced lines, and whether each conclusion is supported by enough evidence.

How the Game Review is formed

The completed analysis is turned into a whole-game view for both players, including accuracy, performance, phases, move quality, strengths, and reliability.

Accuracy

Accuracy summarises decision quality across eligible moves. Book moves, forced mates, and positions without enough evidence are handled separately, so missing data is not treated as a mistake.

Performance estimate

Performance is an objective estimate for one game, calibrated from the available review evidence. It is not an official rating, rating change, or claim about a player's stable strength.

Move classification

Move labels consider more than a single evaluation change. The analysis considers the expected-result change, tactical context, legal alternatives, difficulty, uniqueness, and additional confirmation. Brilliant, great, excellent, and good remain distinct categories.

Phase and skill metrics

Opening, middlegame, and endgame are separated using position context rather than fixed move numbers alone. Skill ratings require a minimum number of relevant positions. An unrated skill is reported as insufficient data, not as a strength or weakness.

Reliability

Reliability is a quality statement about this analysis, not a decoration. It reflects whether enough moves were examined, evaluations remained stable, and every affected metric has the evidence it needs.

LevelWhat it means
HighThe review has strong coverage and stable supporting evidence.
MediumThe review remains useful but carries a visible caution.
InsufficientUnsupported values are withheld or clearly marked as missing.

GM Poodle Coach explanations

GM Poodle Coach turns the most important moments of your game into clear, practical explanations. It shows what changed, why a move succeeded or failed, which alternatives deserve attention, and what lesson to carry into future games.

Complex variations are reduced to the ideas that matter, so you can understand the decision instead of sorting through raw lines and numbers.

Every explanation is checked against the completed analysis before it is shown. When a conclusion cannot be supported clearly, the Coach keeps it cautious or leaves it out rather than inventing certainty.