Best of three
According to the Fourteenth Doctor, "best of three" was "an inviolable rule" that two players who were one-all were compelled to follow. The rule stated that the two players must have a third and final game to determine the true winner between them after two previous games resulted in a stalemate. (TV: The Giggle [+]Loading...["The Giggle (TV story)"])
During the Last Great Time War, when Morbius mused on being disappointed that he had — seemingly — captured the War Doctor too easily for his vengeance to be satisfying, the War Doctor joked that in this case, Morbius could let him go this time, and added: "We could make it the best of three!". Morbius curtly rejected the suggestion. (AUDIO: Morbius the Mighty [+]Loading...["Morbius the Mighty (audio story)"])
The Doctor enacted the "best of three" rule shortly after he lost a game of Cut against the Toymaker in 1925 Soho, pointing out that their tally was equal after he had won their first game "many years ago". (TV: The Giggle [+]Loading...["The Giggle (TV story)"]) The Doctor considered a best of three to be his only hope. (PROSE: The Doctor's Busiest Day [+]Loading...{"page":"9","1":"The Doctor's Busiest Day (short story)"}) The Toymaker then fled to 2023 for their final game, which ended up being a game of catch between the Fourteenth Doctor and the Fifteenth Doctor, in which the Doctors emerged victorious. When the Toymaker tried to bring up a technicality to excuse his loss, the Fifteenth Doctor evoked the "best of three" rule to cement his defeat. (TV: The Giggle [+]Loading...["The Giggle (TV story)"])