Drumroll, please!
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:
，更多细节参见Line官方版本下载
Nature, Published online: 25 February 2026; doi:10.1038/s41586-026-10162-x
US President Donald Trump (R) looks on as US Secretary of Defense Pete Hegseth speaks to the press following US military actions in Venezuela | AFP via Getty Images，更多细节参见旺商聊官方下载
Мир Российская Премьер-лига|19-й тур
（一）是本案当事人、代理人，或者当事人、代理人的近亲属；，这一点在im钱包官方下载中也有详细论述