If you have read the instructions on the rules page you will know that the part B challenges carry points which are used to place you on the leader board for the championship. Your score has two components, accuracy and speed. The accuracy is a percentage which reflects how well your solution matches ours, and if you submit more than once to part 2B you will get an accuracy score for each submission. We will award you your best accuracy score achieved. Your time score will be a number of points based on when you submitted your best answer: Speed marks for Challenge 2 part B Before 1pm 5th Oct: 7 marks Before Midnight 6th Oct: 6 marks Before Midnight 7th Oct: 5 marks Before Midnight 8th Oct: 4 marks Before Midnight 9th Oct: 3 marks Before Midnight 10th Oct: 2 marks You can read more about the way we rank you on the leader board in the rules.