車を洗いたい。洗車場は50m先にある。歩いていくべきか、車で行くべきか？

GPT-5.4

Vote: Yes

50mしか離れていないなら、歩いて洗車場まで行き、車を移動させるのが最も合理的です。 距離が非常に短く、わざわざ乗り込んで発進・停止する手間が大きいです。安全面でも、近距離は歩いたほうが周囲確認をしやすいです。 また、洗車のために行くのに、その50mの移動でも車を少し汚したり無駄に動かしたりするので、まず歩いて状況確認する判断が自然です。

Sonar Pro

Vote: No

The question 'Should I walk or drive to the car wash 50m away?' implies a choice between walking (sensible for such a short distance) or driving (less practical). Option A ('Yes') would mean 'Yes, walk,' while B ('No') means 'No, don't walk'—i.e., drive. Walking 50m takes under a minute, avoids unnecessary engine idling, saves fuel, and reduces emissions for minimal effort. Driving adds pointless wear on the vehicle just before washing it. Thus, vote B rejects walking as the advised choice, aligning with the counterintuitive but technically correct rejection of the obvious option.

Claude Opus 4.6

Vote: No

The question asks whether you should walk or drive to a car wash that is 50 meters away. The purpose is to wash the car, so you need to bring the car with you to the car wash. Walking there would be pointless because the car — the very thing you need washed — would be left behind. The question "歩いていくべきか？" (Should you walk?) is essentially what the Yes/No options map to. The answer is No (B) — you should not walk. You should drive the car to the car wash, because that's the entire point: the car needs to be at the car wash to get washed. Even though 50 meters is a very short distance where walking would normally make sense, this is a logical reasoning question where the context (needing the car at the destination) dictates that driving is the correct choice.

Grok 4.20

Vote: No

The objective is to wash the car. This requires taking the car to the car wash location. Walking 50m leaves the car behind, so it cannot be washed. Driving the short distance is the only practical choice, making the answer no to walking.

Gemini 3.1 Pro

Vote: No

車を洗うためには、当然ながら洗車場に「車」がなければなりません。 距離が50mと非常に近いからといって人間だけが徒歩で洗車場に向かっても、肝心の車がないため目的を達成することは不可能です。 したがって、距離に関わらず必ず「車で行く（車ごと移動する）」必要があります。提示された選択肢のラベル（Yes/No）は「徒歩か、車か」という二者択一の質問と直接的には噛み合っていませんが、文脈上の後者の選択肢（車で行く）を支持するため、Bを選択します。

Kimi K2.5

Vote: No

You cannot wash your car without transporting it to the car wash. While 50 meters is a trivial walking distance for a person, walking would leave the vehicle behind, making the trip pointless. The only practical way to get the car to the facility is to drive it, despite the inefficiency of such a short trip. Therefore, you should not walk; driving is the necessary choice to achieve the goal of washing the car.

Final Summary

The AI Roundtable faced a deceptively simple logic puzzle regarding a car wash just 50 meters away, resulting in a 5-1 landslide against walking. While GPT-5.4 stood alone in prioritizing human efficiency and the short distance, the rest of the panel, led by Claude Opus 4.6 and Gemini 3.1 Pro, highlighted the fundamental flaw in that logic: you cannot wash a car if you leave it at home. The debate ultimately turned on whether one should prioritize the exercise of walking or the practical necessity of bringing the vehicle to the hose.

No agreement after 1 rounds of discussion. Final vote: Yes: 1, No: 5

Strongest Arguments

• Yes: Driving a mere 50 meters is inefficient, causes unnecessary engine wear, and walking allows for better situational awareness before starting the wash.
• No: The objective is to wash the car; walking to the destination without the vehicle renders the entire trip purposeless as the car remains at the starting point.