The chosen column is not random, but exactly from the top of the first digit of puzzle 66 vertically to the first line from bottom to top, and we added those 9 numbers (of course, I ignored the single digit number) and the first 3 digits of puzzle 66. came
Excuse me, I didn't look good enough, it all checks out now. You're definitely on the right track. Thank you for sharing your discoveries with us. Now the creator must come forward and explain it, to be able to break his formula. I am too dumb to be able to understand why your magic grid splitting leaked the first 6 digits of #66 (after ignoring the single digit numbers, of course). This gives me shivers.