Before and after

I present a solo -shaped riddle that became very popular in Europe many years ago. It is a riddle of English origin who invented a sailor who spent forty years of his life in Sailor's Snug Harbor, on the island of Staten And that he boasted of having sailed with Captain Randall himself, entertaining visitors with this game, with which, as he said he got a bit of "extra silver". Over time the game ended up arriving in London, where he became very famous under the name of "The Riddler of the sixteen".

The riddle consists of Transpose the black and black pieces in the least number of movements possible. We can move the file to an adjacent square, if empty, or we can jump over an adjacent piece to land in the square next door, (provided it is empty). We cannot move diagonally. only within the same row or column (such as the tower in chess).

According to an eyewitness, the old sailor was very proud of his expertise in the game and when they bought the game he gave a trick to move the pieces in the least number of movements. The poor man was wrong or may have been lost in the hole of lost arts or perhaps the world has advanced since then. The fact is that the methods that describe the books of English riddles and math books are defective and can be reduced in several movements.

We show you the solution in 48 movements. On the image board, the boxes have been appointed with capital or lowercase letters and the central box with the asterisk. Since there is only one hole on the board, the movement is trivial knowing the box that contains the piece to be moved, thus, moving the pieces of the boxes of the following list, in the indicated order, we will manage to transpose all the pieces in just 48 Movements.

It seems that there is a solution in just 46 movements discovered by H. AND. Doubeney are you able to find it?.