iNatch icon

iNatch is a graphical interface to manipulate proof games.

A proof game is chess game that allows to reach a given position. The interface presents by default 2 diagrams. The left one is the position to reach, the right one holds a chess game.

In the world of chess problems, proof games belong to the retrograde analysis category. When I was responsible for the retro section in Phénix, I created iNatch to help me to render the text for published problems. The software also helps me to view problems I receive via email, whichever format or language.

Here are the most important features of iNatch:

The current version of iNatch is 0.7 (april 2007).