In another post I will make a selection of levels 'many-in-goal' (according to the terminology of Sven Egevad): all the boxes are placed except a minimum percentage. Note.- In other 'Sokoban lessons' there are numerous levels 'fix one' selected, that I will not repeat here. So, this selection is limited to the puzzles of medium and small size, and leave the big levels for another occasion. And of course, gyjgw, author of excellent remodels.
In small 'fix one' four authors stand out: Sven Egevad, Aymeric du Peloux (collections Nabokosmos and Picokosmos), Evgeny Grigoriev (collections GrigrSpecial and GrigrComet) and Thomas Reinke. In this post I have made a selection of some 'fix one', and as usual I have tried are represented different styles, authors and difficulties. The explanation of this fact may be this: with all the boxes placed, the free spaces are minimal, so that the difficulty is maximum. This type of puzzles are often very difficult. These levels are particularly attractive, at least to me, and are my favorite: when I see one, I can't resist the temptation to try to solve it. It is called usually 'fix one' the puzzle whose boxes are all placed except one.
