Errors from transposing or misreading numbers, placing the decimal in the wrong location, etc. The machine mind has a “perfect cache” to hold numbers, concepts, and steps involved. Math is just the simple example of their ability. Such machine minds will be able to hold every state and federal law in their mind, and could re-draft legislation that is “clean” while porting case law from the old to the new legal references.
*for an example of current tech getting simple math wrong: https://twitter.com/KordingLab/status/1588625510804119553?s=20&t=lIJcvTaFTLK8ZlgEfT-NfA
With the collapse of FTX Future Fund, I’m guessing this prize/contest is no longer funded.