Serena Meng's Practice Book
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Practice #17
Started at February 1, 2026 11:41 AM GMT+8.
R' U' F U' R2 U2 F2 L2 U F2 D L2 R2 U R2 U L' B F2 U' F L B' D' R' U' F
Solutions
Spoiler for Solutions. Click to see.
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