I learned that for 4-SAT, if clause to variable ratio is more than 10, the generated problems become difficult to solve, and the likelihood of formula to be SAT or UNSAT is close to 50%. So I generated 3 types of formulas:
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Что думаешь? Оцени!。关于这个话题，体育直播提供了深入分析
A Crowding-out crisis
Starts of MLB team names - BLUE, BREW, CARD, ROCK