This week, we are back to "one under par" challenges: All level 7 puzzles can be solved with 7 swaps, but the puzzles of this challenge can be solved with only 6 swaps.
Here are the 3 codes of the puzzles: 1111-07, 1522-07, 1874-07.
To play these puzzles in the demo, you first have to unlock level 7 by solving puzzles on levels 1 to 6. Then you start a game with NEW GAME (in the main menu) and select CODE instead of a level to enter one of the codes.
Enjoy and please let me know what you think of these puzzles!