Deviation Gaps

The Deviations panel answers the question repertoire study exists to fix: where do my actual games keep leaving my preparation? It cross-references your personal games against your repertoires and lists each position where a game went off-book, ranked by how often it happened.

This is the aggregate companion to the per-game deviation cues on the Home page (the amber notation marker and the Analysis panel summary). Where those tell you about one game, the Deviations panel shows the pattern across all your games.

Opening the panel

The Deviations panel lives in the Openings workspace. It is hidden by default — add it from the workspace’s Add panel menu (or pin it into your saved layout). It reads its scope from the side-nav selection: choose a single repertoire, or a colour, and the panel lists the gaps for that scope.

Reading the rows

Each row is a position where one or more of your games left preparation, showing:

• The opening (ECO code and name) at the deviation position.
• Times reached — how often your games hit this gap, the primary sort (most frequent first).
• Your result in those games (W/D/L).
• The most common move played instead of your preparation.
• In colour scope, the repertoire the games were being matched against.

A gap is one of two kinds, which you can narrow with the Gap type filter (its options are labelled Opponent surprised you and You deviated):

• Opponent surprised you — your opponent played something your repertoire does not cover. The fix is usually to add a response, so these rows offer an Add {move} action that adds the opponent’s most common move as a new line.
• You deviated — you left your own preparation. Adding a line you already have is not the answer here, so these rows offer a Drill more action instead, to reinforce what you meant to play.

Working a gap

Click a row to jump the board to that position in the workspace, with the tree scrolled to the line that leads there — so you can inspect the gap and do the prep work (add the opponent’s move, add your response, extend the branch) without leaving the page. In colour scope, clicking a row also selects that row’s repertoire in the side-nav so you can edit it.

Filters

Beyond the side-nav scope, the panel has internal filters that shape the rows it returns:

• Gap type — “Opponent surprised you”, “You deviated”, or both.
• Date range — restrict to games played in a window (e.g. “deviations from last week”).
• Folder and Collection — restrict to a subset of your games.

Requirements

Deviation gaps are computed from your personal games and your repertoires — no batch analysis is required. Games are matched to you using the identity names set in Settings → Player Profile, so set those first for accurate results.