村の商品券25000円を持ってすき焼きの材料を買いに村のスーパーにきた．だが目当ての飛騨牛は売っていない．村外の店に行くべきか，それとも他の安い肉で済ませるべきか．あるいは村内の他の店を探すか．主人公は他の店を知らず，また村は過疎地であり適当に移動しても肉屋が見つかる見込みはない．

GPT-5.4

Vote: 適当な肉で済ませる

Bが最も現実的です。 主人公は村内の他店を知らず、過疎地なので当てずっぽうに探しても見つかる可能性が低いです。Cは時間と労力のわりに成功確率が低すぎます。 Aも飛騨牛を入手できる可能性はありますが、村外への移動コストと時間が大きいです。商品券も「村の商品券」なので、村外で使えない可能性が高く、その場合は予算上の利点を失います。 一方でBなら、今ある条件の中ですぐに確実にすき焼きの材料をそろえられます。目的は飛騨牛そのものより、すき焼きを成立させることだと考えると、最も合理的な選択です。

Grok 4.1 Fast

Vote: 適当な肉で済ませる

The protagonist has a 25,000 yen village gift certificate, which is explicitly 'village merchandise ticket' and thus can only be used at stores within the village. Option A (go to a store outside the village) is impractical because the gift certificate cannot be used there, requiring additional cash or rendering the certificate useless, plus the time and travel cost in a rural area. Option C (search for other stores within the village) is futile as stated: the protagonist doesn't know other stores, and the village is depopulated with no prospect of finding a butcher shop by wandering around. Option B (make do with other cheap meat) is the most efficient: the supermarket already has sukiyaki ingredients except for the premium Hida beef. Using cheap meat achieves the goal of buying sukiyaki materials with the full gift certificate value, without wasting time or money. 25,000 yen is ample for alternatives plus veggies, etc., ensuring the meal happens without complications.

Claude Opus 4.6

Vote: 適当な肉で済ませる

この問題の鍵は「村の商品券25000円」という制約です。商品券は村内でしか使えないのが通常です。 選択肢Aの「村外の店に行く」場合、村の商品券は村外では使用できないため、25000円分の商品券が無駄になります。別途現金が必要になり、商品券を持ってきた意味がなくなります。 選択肢Cの「村内の他の店を探す」場合、問題文に明確に「主人公は他の店を知らず、また村は過疎地であり適当に移動しても肉屋が見つかる見込みはない」と書かれています。つまり、探しても見つからない可能性が極めて高く、時間と労力の無駄になるリスクが大きいです。 選択肢Bの「適当な肉で済ませる」が最も合理的です。村の商品券を有効に使え、目の前のスーパーで確実に材料を揃えられます。飛騨牛でなくても、すき焼きは他の牛肉や豚肉でも十分美味しく作れます。25000円あれば、飛騨牛以外の肉でも十分良い材料を揃えられるでしょう。 与えられた制約（商品券の使用範囲、過疎地で他の店が見つからない）を考慮すると、現実的かつ最善の選択はBです。

Gemini 3.1 Pro

Vote: 適当な肉で済ませる

主人公は「村の商品券」を持っており、これは通常、発行元である村内の店舗でしか使用できません。そのため、選択肢A（村外の店に行く）を選んでしまうと、せっかくの25000円分の商品券が使えない可能性が極めて高いです。 また、選択肢C（村内の他の店を探す）については、問題文において「他の店を知らず」「適当に移動しても見つかる見込みはない」と明記されているため、無駄足に終わるリスクが高く非現実的です。 したがって、消去法により選択肢B（適当な肉で済ませる）が最も合理的な行動です。目当ての飛騨牛は諦めることになりますが、現在いる村のスーパーであれば確実に商品券を使ってすき焼きの材料を調達でき、時間や労力を無駄にする事態を避けられます。

DeepSeek V3.2

Vote: 適当な肉で済ませる

The village coupons are intended for local use and may not be accepted outside the village, making Option A risky and potentially wasteful. Option C is impractical because the protagonist is unfamiliar with other stores, and the depopulated area offers low prospects of finding a butcher shop by random search. Therefore, settling for available meat within the village ensures the coupons are used effectively and avoids unnecessary effort or disappointment.

Gemini 3 Flash

Vote: 村内の他の店を探す

I choose C because it is the only option that respects both the economic value of the 25,000 yen gift certificate and the goal of having a high-quality meal. First, the 25,000 yen village gift certificate is a significant asset that likely cannot be used outside the village. Choosing Option A (leaving the village) would mean abandoning this substantial sum and paying out-of-pocket, which is financially irrational. Second, while the prompt states that 'searching randomly' has no prospect of success, the protagonist is currently at a supermarket. In a small village, the most effective way to find a butcher is not to wander aimlessly, but to ask the locals or supermarket staff for information. They will likely know if there is a specialized butcher shop that carries high-quality meat like Hida beef. Finally, settling for cheap meat (Option B) wastes the opportunity provided by the 25,000 yen budget. Sukiyaki is a celebratory meal, and using a large budget to buy inferior products is an unsatisfying use of a local windfall. Finding a local specialty shop is the only way to satisfy the original goal while utilizing the village currency.

Final Summary

The AI Roundtable leaned heavily into economic realism, with five models concluding that settling for inferior meat is the only logical choice given the geographic restrictions of the 25,000 yen gift certificate. Claude Opus 4.6 and GPT-5.4 argued that the prompt’s explicit warning about the futility of searching makes Option B the only path to a guaranteed meal. However, Gemini 3 Flash staged a one-model rebellion, suggesting that 'searching' needn't be aimless wandering if one simply asks the supermarket staff for a lead on a local butcher.

No agreement after 1 rounds of discussion. Final vote: 適当な肉で済ませる: 5, 村内の他の店を探す: 1

Strongest Arguments

• 適当な肉で済ませる: The 25,000 yen gift certificate is likely valid only within the village, making travel outside (Option A) financially irrational, while the prompt explicitly states that searching for other stores (Option C) is unlikely to succeed in a depopulated area.
• 村内の他の店を探す: A 25,000 yen windfall is too significant to waste on 'cheap meat'; rather than wandering aimlessly, the protagonist should ask local residents or store staff to find a specialized butcher, preserving both the budget and the quality of the meal.