Yongqiang Peng's Practice Book
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Practice #139
Started at October 25, 2026 12:26 AM GMT+8.
R' U' F B2 R2 F' L2 F U' F' B2 D' L B2 R F2 D2 B2 R' U2 R' F2 B2 R' U' F
Solutions
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