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I found an online list of Powerscore's 15 hardest LR questions to date, and I'm working through them:

http://blog.powerscore.com/lsat/killer- ... me-part-i/
http://blog.powerscore.com/lsat/killer- ... e-part-ii/
http://blog.powerscore.com/lsat/killer- ... -part-iii/

Does anyone know of any further lists beyond these ones? I have all of the LSAC tests on hand as well as the Kaplan LSAT Mastery Practice book, and ideally I'd like to review other really hard ones (the 100 or 200 hardest, if such a list exists).

Here's my list of difficult LR questions in recent exams.

Thanks for your help! I have only six PTs left before October 1 (58, 59. 60, 61, 62, 63) so rather than run through them I'm reviewing the hardest LG and LR problems I've seen before. For what its worth, my experience has been that reviewing wrong answers and understanding exactly why the credited answer is correct and the others are incorrect is the most useful in improving.