Additionally, any map that could potentially be a counterexample must have a portion that looks like one of these 1,936 maps.
Fǎl a wen, kart kul war-en taddoobǎt tumast ən ǎlmital , ilzam tǎt ad-təlla ashrut iyyan olahǎn əd-iyyat dǎɣ ti-n 1936.