For the ICTM 2021 Geometry Contest, the difficulty should be around a low to intermediate level. There were a few questions which require somewhat analytical skills like #6 and #11, but overall the difficulty was standard. As usual, the geometry contest tests students on proofs, memorization, and comprehension.
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Question 6: 0:28
Question 9: 2:28
Question 10: 4:53
Question 11: 8:04