A four-state tennis scoreboard rendered as a chart in plain HTML — one row per set and one cell per game in the order played, each cell's upper/lower half marking who won it while an outline means the serve was held, a solid fill means it was broken and a "TB" tag marks a tiebreak, with set scores (bracketed mini-score included), hold percentages, unfinished sets and retirements all counted from the same games array.