What actually changes as a chess player climbs the ladder? Not how often they win, but how they think: their precision, the pressure they create, and their killer instinct when the opponent slips.
One line per time control. Hover a point for the exact number and how many players it rests on.
How often the opponent cracked under a serious threat, by phase of the game. Darker = cracked more often.
What the mistakes are made of at each rung — every bar is 100% of that band's mistakes.