2019-10-06 - Altona Algorithms 2019 - reconstruction by Stewy
D2 U2 R2 B2 F R2 B' U2 B' F' D' L D F R' D' B2 R2 B2 L B'
x2 y // inspection
L U R U' U' F y D2 // cross
U' R' U R // 1st pair
U' R U' R' U R U R' // 2nd pair
y2' U' R' U' R // 3rd pair
U R U' R' y' R' U R U R' U R // 4th pair / SVLS
U R' d' F R2 u R' U R U' R u' R2' // PLL