Logic Masters Deutschland e.V.

This is my entry from round 5 of season 1 of the Skunkworks League, hosted by damasosos92.

In this round, the prompt was to create a recoil puzzle using only standard recoil rules. This genre was invented by SebastianSimon and his original puzzle can be found here

Don't forget to check out the other puzzles from the round. Those that are published here should all have [TSL] and [S1T5] in the title.

Recoil: Starting at the black diamond, draw a directed path through the centers of some cells in the grid. Path segments are drawn sequentially from cell to cell, such that the first path segment is drawn from the black diamond to an adjacent empty cell, the second segment is drawn from that cell to the next empty cell, and so on until the final segment is drawn and the path ends.

The path cannot branch or revisit a cell it has visited before.

Every time the path enters a new cell, a “recoiled cell” is placed in the first empty cell in the opposite direction. This recoiled cell may skip over gaps in the grid, other recoiled cells, or other path cells.

The path cannot enter a cell if its corresponding recoiled cell cannot be placed into the grid.

All cells of the grid must be visited by the path or contain a recoiled cell.

The following example, courtesy of damasosos92, demonstrates how this works in practice. Additionally, SebastianSimon's original puzzle includes an animated example.

recoil can be played online here.