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--- coolstuff [2021/11/17 21:42] – created haydn
+++ coolstuff [2022/12/28 23:41] (current) – old revision restored (2022/12/28 23:29) haydn
@@ Line 9: / Line 9: @@
 ===== Websites =====
   * https://regex101.com/
+===== Maltese Gear Cube =====
+Solution ideas from zergosaur: https://www.youtube.com/watch?v=CMM1YoUvfaU
+) Solve the corners, centers and edges (ie all pieces except for the gears) using a Mixup Gear Cube method:
+a) Solve the corners as a 2x2, using: http://www.rubiksplace.com/cubes/2x2/
+b) 3-Cycle the edge + centers using: (R U R U R) (U' R' U' R' U') - this midpoint might be worth investigating further as the 2x2 face is unchanged but the back 3x3s are modified at this point. Follow with: (L' U' L' U' L') (U L U L U)
+) Permute the gears
+a) 2x 2-Cycle across the left and right edges: (R U R U R) (U'R'U'R'U') -match- (R U R U R) (U'R'U'R'U') -match- (U'L'U'L'U') (L U L U L) -match- (U'L'U'L'U') (L U L U L)
+b) 3-Cycle across the left edge and left upper edge:
+(R U R U R) (U'R'U'R'U') -match- (R U R U R) (U'R'U'R'U') -match- (U'L'U'L'U') (L U L U L) -match- (U'L'U'L'U') (L U L U L) -match- (DLD') -3/4- (L'U'L'U'L') (U L U L U) -3/4- (L'U'L'U'L') (U L U L U) -3/4- (U R U R U) (R'U'R'U'R') -3/4- (U R U R U) (R'U'R'U'R') -3/4- (DL'D')
+) To rotate 2 gears by 90°:
+ (R'D'RD)*4
+ D (RURUR U'R'U'R'U')*2 (U'L'U'L'U' LULUL)*2 D'
+ (D'R'DR)*4
+ D (L'U'L'U'L' ULULU)*2 (URURU R'U'R'U'R')*2 D'
+This rotates the front left gear +90°, and the front right gear -90°.
+Alternatively, a small variation of this alg
+ (R'D'RD)*4
+ LD (RURUR U'R'U'R'U')*2 (U'L'U'L'U' LULUL)*2 D'L'
+ (D'R'DR)*4
+ LD (L'U'L'U'L' ULULU)*2 (URURU R'U'R'U'R')*2 D'L'
+rotates 4 gears:
+ front right -90°
+ top left: +90°
+ left top: -90°
+ left bottom: +90°
+Do the above algs until all gears are either solved or need to be flipped 180° (ie only need to fix gears which need to be rotated 90° or 270°).
+) Doing https://youtu.be/uBU_0Qb-AGI twice flips all 4 gears which were part of the cycle by 180°. Use this to orient all of the gears correctly.
+Additional Algs (not used in above method):
+a) The following 1000+ move alg (!) rotates the two gears located on the front and back faces next to the L face by 90°.
+ (R' D' R D)*132
+ D
+ (R' D' R D)*132
+ D'
+b) Use https://youtu.be/L3Sd1mS5DTI to rotate pairs of gears of the same color by 90°.