2cep
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2cep is a 4x4 method developed by [Plus Two]. It was created as an alternative approach to solve a 4x4 by using reduction to directly turn it into a 2x2 instead of a 3x3.
Contents
Steps
1. Create 5 2x2x2 corners missing their centers (they will be solved in step 4).
2. Solve 1 of the remaining corners using an algset called ECEE.
3. Solve the last 2 corners using L2C algorithms. Algorithms can be found on Plus Two's channel, but they are still in development, and aren't fully finished yet.
4. Solve the centers. 2x2 setup moves and the algorithm (R U R' U)*5 (which rotates the U layer centers by 180 degrees)are used for this.
5. 2x2 stage. Solve the 2x2 using whatever method you normally solve a 2x2 with. Ideally, EG would be used.
Pros
 This method has NO PARITY
Cons
 Lots of rotations
 High move count