Puzzle: Cube, Face Cut, Type A, 4th Order, Vertex Cut, Type C, 3rd Order
Abbreviation: Cube FA4VC3
Commonly Known As: 4x4x4 + Master Skewb

Piece Counts

Name	Qty	Colors	Orient.	Perm.	Orbits
Outer Corner	8	3	3	Odd	None
Inner Corner	24	1	None	Odd	None
Outer Edge	48	1	None	Even	2
Inner Edge	24	2	None	Odd	None
Outer Center	24	1	None	Odd	None
Inner Center	24	1	None	Odd	None

Move Types

Type	Layer	Period	Pieces Affected	Total Parity
Face	1	4	1 outer corner 4-cyc, 3 inner corner 4-cyc, 4 outer edge 4-cyc, 2 inner edge 4-cyc, 1 outer center 4-cyc, 1 inner center 4-cyc	Even
Face	2	4	2 outer edge 4-cyc, 1 inner edge 4-cyc, 2 outer center 4-cyc, 2 inner center 4-cyc	Odd
Vertex	1	3	1 outer corner twist, 1 outer corner 3-cyc, 2 inner corner 3-cyc, 6 outer edge 3-cyc, 2 inner edge 3-cyc, 4 outer center 3-cyc, 3 innter center 3-cyc	Even

Suggested Solving Orders

Reduction
1. Group inner centers
2. Group outer centers with inner centers
3. Group inner edges
4. Group subcorners with corners
5. Solve grouped pieces
6. Solve outer edges

Important Issues and Notes
The outer edges fall into two orbits which change parity together. Solving the inner edges puts the outer edge orbits in even parity.

Useful Algorithms
In step 2, three cycle outer centers: ubr+ F+ ubr- F-
In step 2, three cycle outer centers: UFR+ U+ UFR-
In step 3, three cycle inner edges: u+ R+ U+ R- u-
In step 4, three cycle subcorners: (UFR- R+ U- R- UFR+) D+ (UFR- R+ U+ R- UFR+) {D-}
In step 5, swap two reduced edges: u2 r2 U2 r2 U2 r2 u2
In step 5, parity change reduced edges: r- U2 r+ U2 r- F2 r+ F2 r- B2 r- B2 r+
In step 5, rotate one corner: (R+ UFL+ R- UFL+ R+ UFL+ R- UFL+) (F2 U+ (r+ U2 r- l- U l+) U- F2 L2 F+ (u- F2 u+ d+ F2 d-) F- L2) (L- (r+ U+ UBR- U- UBR+ U- r-) B- d+ B+ (r+ U+ UBR- U+ UBR+ U- r-) B- d- B+ L+)
In step 6, three cycle outer edges: UFR+ (R+ Bb+ D+ Bb- R-) UFR- (R+ Bb+ D- Bb- R-)