Name a country that borders Brazil: rare answers

“Name a country that borders Brazil” has 10 accepted answers here, and 2 of them (20%) are rare enough for the two deepest tiers. France and Argentina are the Surface answers almost everyone gives.

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Accepted answers: 10
Category: Geography
Deep answers (85–100 pts): 2 (20%)
Alternate spellings accepted: None needed
First letters: 9 different; P is the most common (2)

🦑 Midnight Zone: 2 answers (20%), 85 pts each
🐠 Twilight Zone: 3 answers (30%), 60 pts each
🐟 Sunlit Zone: 3 answers (30%), 30 pts each
🌊 Surface: 2 answers (20%), 10 pts each

The rarest answers

This list has no Abyssal tier, so the Midnight Zone is as deep as it goes: Bolivia and Paraguay, worth 85 points each.

🦑 Midnight Zone answers (85 points)

Bolivia, Paraguay

🐠 Twilight Zone answers (60 points)

Guyana, Uruguay, Suriname

🐟 Sunlit Zone answers (30 points)

Venezuela, Colombia, Peru

🌊 Surface answers (10 points)

France, Argentina

Rarity tiers are our own estimate of how few people would think of each answer. For strategy, read how to find One in a Krillion answers.

Prompts that share answers with this one

Name a country or territory in South America (9 shared, such as Bolivia, Paraguay, Guyana)
Name a country where Spanish is an official language (7 shared, such as Bolivia, Paraguay, Uruguay)
Name a country in the Alps or the Andes (6 shared, such as Bolivia, Venezuela, Colombia)
Name a country that has won the Copa América (6 shared, such as Bolivia, Paraguay, Uruguay)
Name a country with a total area of more than 1 million square kilometres (4 shared, such as Bolivia, Colombia, Peru)