Here was where the mistake happens on my part and when you need to understand when a weaker piece is worth much more than a stronger one. I was on cruise control. After I made my move I wondered if my opponent understood that many people sacrifice their 5 for a 3 in the end game since it can render your opponents sabs unless.
(hide) If you want to play a game with an opponent of a similar level, you can define a required BKR range for a new game invitation. Then nobody with a BKR outside this range will be able to see/accept it. (Katechka) (show all tips)