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--- wiki:map_selection [2026/09/28 22:53] – Complete archive and clarify fallback policy wikiadmin
+++ wiki:map_selection [2026/09/29 08:08] (current) – Document Standard Farm and Stream finder with source references and related links wikiadmin
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 ====== How maps are selected ======
+Pool eligibility, freshness, player feedback, and mode-specific preferences work together to select maps.
+^ Availability | All lobbies; filters vary by room |
+^ Documentation status | Current behavior |
+^ Behavior reference | v6.6.16 · reviewed 2026-09-28 |
 Selection starts with the active source catalog and the room's configured filters: game mode, key count where applicable, difficulty, playable length, pass-count policy, age policy when enabled, and availability. [[commands:pool|.pool]] gives the current room settings.
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 ===== Sparse catalog expansion =====
 A separate sparse-pool mechanism can progressively broaden playable length and configured ranked-map age while retaining star-rating, pass-count, quality, status, key-mode, and download boundaries. It prefers the original candidates before expanded ones. This catalog expansion is different from [[wiki:style_fallback|style exhaustion fallback]], which softens style evidence within the resulting eligible catalog.
+===== Worked example =====
+Type ''.pool'' to inspect the active range and filters. A style or source request still has to find eligible maps inside the applicable selection policy.
+===== Limitations =====
+Sparse-catalog expansion and style exhaustion fallback are separate mechanisms. Research evidence and pool counts can change.
+===== Related articles =====
+See [[troubleshooting:repeats|a related guide]] and [[wiki:start|all features]].
+===== Inside the Standard finder =====
+For the evidence behind osu!standard Farm and Stream, read [[technical:standard_map_finder|the Standard finder notebook]]. It explains PP-efficiency models, circle-run detection, and the distinction between research qualifiers and live room filters.