u/Longjumping-Film2138

When considering only the blue tiles, the purple square has a 50% chance of being a mine. When considering red tiles only, the purple tile has only a 33% chance of being a mine. Giving both of these equal weight (stupid, i know) gave me a ~42% mine chance for purple, but WoM's solver gave a mine probability of 21%.
Do I need to think about the entire board when calculating probabilities or is there logic i can use for guessing on sections?