After rewatching I noticed a mistake I made at 27:44. I assumed that the 1 forced a 67 pair on the line because the other lines did the same. However I only used this information after finding out both couldn't contain an 8 (at 32:18), meaning they also couldn't contain a 9.
After rewatching I noticed a mistake I made at 27:44. I assumed that the 1 forced a 67 pair on the line because the other lines did the same. However I only used this information after finding out both couldn't contain an 8 (at 32:18), meaning they also couldn't contain a 9.