Serena Meng's Practice Book
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Practice #19
Started at February 8, 2026 1:34 PM GMT+8.
R' U' F B2 U2 B2 U2 R2 U2 R2 B2 L B2 D2 R' B' U' R F2 L D R2 D2 B' R' U' F
Solutions
Spoiler for Solutions. Click to see.
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