I've posted this list on the programmers forum.
You can access it by following This Link
Ruud has also kindly provided a link to download all the puzzles as a single file from the sudokuvault. You can download it by following this link
I couldn't fit it into 1 post there.
I have therefore divided it into 3 posts & provided a link here to that thread.
here is a general description of the puzzles
#This is a list that I compiled earlier this year when searching for "Hardest puzzles"
#It was filtered down from 80000+ puzzles that were generated using multiple seeds and minimal neighbourhood search
#The configurations are mainly Diagonal following coloin's method
#The puzzles were rated usung gsf's q1, Dukosu's Suexrat9 & Ruud's SudoCue 184.108.40.206
#q1>8999, Sx9>899, SC BruteForce>0 filters were applied
#Iteration count prior to 1st guess using gsf's sudoku FNBHTWXYKO set was done, I=0 filter was applied
#1st 1225 puzzles have unique non isomorphic solution grids selected from the filtered 1800 pool depending on the highest q1 rating
#All the puzzles have non-isomorphic puzzle configuration
#The 1st 1225 puzzles were sorte according to their Sx9 rating, this was repeated for the last 575 in the set.
#the set has been cross checked against other famous puzzle sets, I kept only the isomorphic puzzles that were referenced to myself