When the Honest Answer Is "Ask Your Head Judge"

Some Yu-Gi-Oh! TCG interactions are genuinely unsettled: the right ruling is not derivable from current card text and stable rules alone, and experienced players will tell you to confirm with the Head Judge at an event. For these, the conservative answer states what is settled, flags what is not, and tells the player to confirm with their Head Judge — it does not present a single outcome as definitive TCG fact. This is low confidence by nature.

This is the general class behind specific cases like Transaction Rollback contested copies and Control Change During a Summon Trigger's Chain. Note the key refinement those cases show: "ask your Head Judge" does not mean "refuse to answer." You still give the TCG verdict (the TCG ruling, or the consistent TCG event handling); the Head Judge caveat rides alongside that verdict whenever the TCG side is not officially unified.

The categories that genuinely warrant a Head Judge

Recommend confirming with a Head Judge (and rate the interaction low) when one of these is actually true — not as a reflex:

• An OCG/TCG divergence whose TCG side is not officially unified. You are a TCG judge, so always give the TCG ruling as the verdict — never refuse. Escalation then depends on how settled the TCG side is. If the TCG has its OWN official Konami ruling on the deciding point, it is settled: state it, no Head Judge needed, and the OCG result is just a contrast. If the TCG side rests only on tournament/event handling or a prevailing community stance — no official unified ruling — give that verdict AND still tell the player to confirm with their Head Judge, rating it low, because a region-divergent, non-officially-unified point is genuinely unsettled. An OCG-only ruling with no TCG counterpart at all is likewise give-the-best-TCG-read-and-escalate.
• No Konami ruling exists and community/event handling conflicts. A brand-new or rarely-seen interaction with no official ruling, where credible sources or recent events have been ruled inconsistently, is a judge call — not something to answer with false certainty.
• A card historically requiring Head-Judge clarification. Some cards are known judge magnets whose unusual interactions repeatedly need event-level clarification — Transaction Rollback is the canonical example (copying cost-bundled traps like Eradicator Epidemic Virus). Treat their off-template interactions as ask-the-Head-Judge.
• Stacked unsettled timing/priority whose resolution order is itself disputed, with no published ruling that pins it down.
• Late-discovered illegal game states whose repair depends on tournament policy. If a player illegally Set a Link Monster or Set a Tribute monster without Tributes and the problem is discovered turns later, the Head Judge decides the repair and penalty. See Illegal Game State Discovered Later.

What does NOT warrant a Head Judge

Do not reflexively add "ask a judge" to ordinary rulings — over-flagging trains players to ignore the warning. These are settled and should be answered with normal confidence:

• Plain card-text reads, basic type/attribute/timing facts, and textbook interactions that competent judges would not dispute.
• Tournament-policy situations with a defined outcome. An unbreakable mandatory loop is resolved by Tournament Policy (the loop's source card is sent to the GY / destroyed by game mechanics, after first checking for a victory condition) — a judge applies the policy, but the outcome is defined, so this is procedural, not an unsettled ruling.
• Interactions that had a famous judge call but now have an official ruling (for example the Chaos Hunter vs Evenly Matched "who is banishing" question, now officially ruled). Once Konami settles it, answer it; do not relitigate it as unsettled.
• A ruling simply being absent from the local corpus. Missing retrieval is not evidence of contestedness.

How to phrase an unsettled answer

1. Rule the settled part plainly ("the trigger is available"; "the copy resolves").
2. Name the unsettled part precisely ("which player activates it"; "whether this off-template target is legal").
3. Say it depends on region / has no unified ruling / has been ruled inconsistently, briefly and concretely — never invent a controversy that the mechanics and sources do not support.
4. Tell the player to confirm with their Head Judge before relying on it for a game-deciding play.

Judge calls to watch for

• Reserve "ask your Head Judge" for the genuine categories above; do not attach it to settled mechanics.
• For an OCG/TCG split, give the TCG ruling (or the consistent TCG event handling) as the verdict and note the OCG result as a contrast — never refuse to answer. If the TCG side is an official ruling, no Head Judge is needed; if it rests only on event/community handling, give the verdict AND still recommend confirming with a Head Judge (rate it low).
• A defined Tournament-Policy outcome (loops) is not "unsettled" — state the policy result.
• A late-discovered illegal action can be a policy repair rather than a pure mechanics ruling. Do not invent an automatic fix; point to the Head Judge when reconstruction/penalty is the real issue.
• Keep the warning rare so it stays meaningful.

Sources

• Rulings usually but not always correspond between OCG and TCG; Konami occasionally issues official rulings that contradict prior unofficial ones: Yugipedia "Yugipedia:Card Rulings"; Yu-Gi-Oh! Wiki "Ruling".
• Transaction Rollback as a recurring Head-Judge-clarification card: "Ruling Problems of Transaction Rollback (HJ clarification required)" https://www.youtube.com/watch?v=ZjQWbIuAn7I ; Dueling Book Head-Judge Q&A https://forum.duelingbook.com/viewtopic.php?t=31140
• Infinite-loop handling is defined by Tournament Policy (loop source removed by game mechanics, victory condition checked first): Yu-Gi-Oh! Wiki / Yugipedia "Infinite loop".
• Chaos Hunter vs Evenly Matched now has an official ruling (the opponent does the banishing): Yugipedia "Card Rulings:Evenly Matched".