Word Sudoku comes from Charles Reinke. The game combines anagrams with sokoban.
  The most interesting part of the game: where is the word going to be spelled in the grid"
500 levels - just too many for me to tackle.  I solved about 10 levels.
Charles also made the game Flip's Challenge.  I know that I played it, but never blogged about it. It's good too.
http://www.axialfrontier.com/wordsokoban
https://itunes.apple.com/us/app/word-sokoban/id1193759708"mt=8

...