End Games

2vs1 pawn ending: defender should try to force backwards pawn, simplifying to 1 v 1 passed pawns. If the attacker with two pawns can force an exchange, then it simplifies to a single passed pawn for the attacker. The defender wants to force a backwards pawn as far up the board as possible.
Pinning a bishop to a rook with a rook: locks two pieces down, as long as you don't leave a minor piece unprotected for the rook to attack.
Missed Winning end Game: against doubled pawn, could pin the front double pawn so it can't be used as a defender.

White London: had lead of two pawns, and a protected passed pawn. Was looking for a tactic here, should have been looking to hold and trade down.
Missed Winning End Game: should take the 3vs2 queen side pawns, double pawns are enough to stop the advancing pawns
White London System: Don't need to defend their passed isolated pawn with both rook and king. Their two weaknesses on each side is enough pressure to stop any advances.