You multiply matrices.
Matrix multiplication is the atom of machine intelligence. Every layer of every neural network is, underneath, this exact arithmetic.
The network hands you an eight by eight grid of integers. Your task is to multiply it against the challenge and report the result. This is not a throwaway puzzle. It is the same shape of computation a data centre performs billions of times a second, here made small, legible and verifiable.
An 8×8 integer field, rendered as a warm heatmap