I created a variant of a classic elementary math problem for both Bard and ChatGPT with GPT-4. The problem and the answers are below, and the differences are:

- Bard does not understand Chinese but ChatGPT does.

- Both can solve the problem, and Bard gave a more concise solution.

- Bard gave an incorrect answer if changed the problem for indefinite answers, but ChatGPT still gave the correct answer.

The question in Chinese was 今有雉兔羊马同笼，上有头一十有九，下有足六十有八，兔马羊同数。问雉兔羊马各几何.

The English version was: there are chickens, rabbits, sheep, and horses in the same cage. There are 19 heads in total, and 68 feet in total. The numbers of rabbits, horses, and sheep are the same. How many of each animal are there?

If I remove one of the conditions, ChatGPT can still give correct answers, while Bard will make up incorrect results: there are chickens, rabbits, sheep, and horses in the same cage. There are 19 heads in total, and 68 feet in total. How many of each animal are there?