Jappuz is a program that solves nonograms step by step and shows intermediate results graphically after each step. This allows a player to solve a puzzle up to a certain point (the point where one is stuck solving it manually) and then only see the next step proposed by the computer. In such a way the fun of solving a puzzle is not completely spoilt by the computer.
The program is acompanied by 22 example puzzles (plain text files with numbers for each row and column) It is a windows execuatable that runs out of the box (i.e. stand-alone, read only program, no changes to the system, no files altered)