This is one of the most self-frustrating game I ever had
Engine already told me what "moves" were wrong and what I should have played. But engine tells moves not ideas, so I have couple of questions?
•I have easily converted single-rook, minor piece, king and pawn, endgames but double-rook endgame I have really struggled as attacking side due to open lines due to lack of pawns by defending side. So how can I prevent myself from being passive without losing material advantage of pawns? My rooks were really passive in endgame.
•The move where my winning advantage turned into losing was last b4 move. But they are moves, but instead of move, what exact idea or concept I should keep in mind to avoid blunders due to "passed pawn counterplay"? Apart from double-rooks, passed pawns as source of counterplay is really difficult to handle for me, especially double-connected passed pawns