DaYan Neptune Bermuda Cube

After Uranus, I reached the end of my journey through the planets with Neptune. Neptune is similar to its predecessor; the difference being that there are three Bermuda faces instead of four. It is possible to rotate all three square centres; this introduces the possibility of a parity issue during the solve.

In the solved state, the right angles of the triangular centres all point to one corner. There are three degrees of freedom, on the blue, white and orange faces.

This makes it slightly easier to scramble than the previous two puzzles. The heavy bandaging means that cornering is not as easy as in some other puzzles. It is best to rotate the puzzle when the edges are rotated properly. I have not experienced any problems with popping.

If the puzzle of flipped over, it gives the illusion of a standard 3x3x3 puzzle.

As with other Bermuda puzzles, the integrity of the cubic shape is soon lost during the scramble.

Solution

By now the basic methodology for solving the Bermudas is well established. There is the additional complication of a possible parity issue.

I choose to focus on the yellow and white sides during the solve but any two opposites faces will work just as well, due to the symmetry of the puzzle.

Step 1 - Solve the Green/Red Edge

This is trivial. This will be the middle section of a Petrus-like block.

Step 2 - Solve the White Triangles and Pentagon

This can be done intuitively, though careful planning is needed to place the triangles. We now have a solved cubic section. It will be extended in the next step.

Step 3 - Solve the Yellow Corner and Edges bordering the Red and Green Faces

Again, this can be done intuitively.
This creates a Petrus-like block that gives freedom of movement on the blue and orange faces.

Step 4 - Solve the Blue and Orange Rectangles and Pentagons

First, rotate these pieces (they behave like edges). Solve the blue rectangles and check that the puzzle does not have a parity issue. If it is not possible to permutate all of the edges on the orange edge then the yellow square needs to be rotated by 90°.
Once all of the pieces are correct it is time to work on the corners. To facilitate this I rotate the blue face so that the right angle of the blue centre is pointing down.

Step 5 - Rotate the Orange and Blue Triangles and Squares

This is a little fiddly but once I had sussed out how to rotate them I found it not too difficult.

Step 6 - Permutate the Blue Squares

Next permutate the blue squares, though I geerally do this at the same time as step 5.

Step 7 - Permutate the Orange Squares and Triangles, and Blue Triangles

The final step is permutate the pieces that behave like corners on the orange face.

One solved cube...