Do you mean one and two? Two and three are clearly different, as three has no pattern other than disenfranchisement. I agree that one and two are both valid ways to divide the squares visually, but the text is stating that one is, “perfect,” and two is, “compact but unfair,” implying that the goal should be getting each political group some representation. That is still allowing politicians to pick their constituents, and even if it’s more fair than three, it still built to serve the candidates, not the voters. Compact (i.e. a system that divides districts entirely by geography and population, without consideration towards demographics or political alignment) should be the actual desired outcome.