Coach definition, not a live verdict. These pages show how the X-ray Coach defines this concept and where its thresholds sit, sourced from the coach's own code. Unlike the tactic pages, nothing here runs a live detector — example boards illustrate the rule, they don't execute it.
What it means
- Conversion technique once a late endgame is reached, split by the evaluation you entered it with.
The exact rule the X-ray Coach applies
- Winning endgame: entered a late endgame at ≥ +2 — measured by how often you won.
- Slight edge: entered between +0.5 and +2 — how often you won.
- Equal: entered in an equal band — your chess score from there.
- Losing: entered at ≤ −2 — how often you saved a draw or win.
Why it matters
Endgame technique is highly trainable and separates rating bands sharply — the same position is a routine win for one player and a draw for another.