TalkChess.com

[Pedro Perez Romero]

Hi

I'm new to this site. I have developped this software because I wanted to learn chess. As Capablanca said, endgames should be studied before middlegames and openings. And I fully agree.

My approach was : OK I have not a lot of time to do that, so I will let a software analyze the endgames for me, and I will memorize the positions and 2 o 3 key variations. In practice, this will be enough.

I didn’t find that software. Engines are not reliable and Nalimov databases cannot solve endgames with more than 6 pieces. So I decided to develop this tool.

FinaGen has 2 restrictions :
- You can only analyze endgames with up to one piece per side. For example, a position like KBB vs KNB cannot be solved. Any number of pawns is allowed, unless the position is too complex.

- Not all positions can be solved. Sometimes a position is partially solved, showing a result like “Black does not lose”, which means that Black can at least force a draw.
One of the tests consisted of comparing results from Nalimov database to FinalGen ones. All positions with one piece or less per side were compared. The result was the following one

Total positions compared = 1.59955E+13
Not solved = 3.72744E+11
Partially solved = 2904408188
Solved solution rate = 97.6515356%

This takes in account also illegal positions, which represent about 30% of the total, so we can conclude that unsolvable positions are less than 5%.

The “search for draw” mode can be very very fast but leads to a greater number of unsolved positions. In addition, it cannot determine a win, only draws.


In the next message, I will try to explain the reasons for such restrictions.
Despite these limitations, the program remains interesting because of its performance, compared to other generators.

Regarding the virus alert, this has been fixed and the current version is safe. As you can see in my Website, false positives are still there for some antivirus but this will be fixed soon.

Jouni , the “unexpected error” you got has been caused because the antivirus removed some dll’s and the program could not work properly.

Regards
Pedro Pérez Romero