World record 21x21 rubik's cube July 8, 2019 16 32 64 128 21x21 rubik's cube world record 2023 World record for 21 x 21 rubik's cube 21x21 rubik's cube world record 2022 21x21 rubik's cube world record video 21x21 rubik's cube world record 2023 video 21x21 rubik's cube world record time
