For 200 unlabelled speckle images you'll be asked the binary question:
"Is this a response from PUF 1 or PUF 2?". Your score will simply be the percentage of correct answers.
Your submission should contain two columns, one named 'id' and one named 'Answers' separated by a comma. The 'id' has the numbers  1 till 200 indicating which image you're identifying. The 'Answers' column has the number 1 or 2 indicating PUF 1 or 2.
id,
Answers
1,
2
2,
2
3,
1
.
.
.
.
.
.
And example submission file is available at 'Data'.