The Easiest 28 challenges presentation: https://www.sirgog.com/wp-content/uploads/2022/02/3-17-challenges-24.pdf
The Hardest 12 presentation: https://www.sirgog.com/wp-content/uploads/2022/02/3-17-challenges-40.pdf
My notes as Excel https://www.sirgog.com/wp-content/uploads/2022/02/Archnemesis-Challenges.xlsx