Manual de Houdini 3 2012 | Page 152

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Houdini Help
positions. A win is more valuable the more often a position was visited and the deeper
the previous variation was. It is also possible to use Let's Check anonymously without
adding your name.

Discovering a position
More calculation time is needed to "discover" a position than for standard analysis. The
green progress bar jumps back slightly when the next step is displayed.
The system has three levels:
1. Fast calculation (black display)
2. Deep calculation (green display)
3. Very deep calculation (Discoverer, only the first)
Deeper calculations can overwrite the variation, but the name of the person who
discovered the position remains. The window also shows whether the position is part
of common chess theory, the number of visits, the main line and the depth.

The entry “My Line” has to do with the variation that has been discovered (3 half
moves) and is currently being displayed in the Let’s Check window. The position’s
discoverer is stored separately and has nothing to do with this information.
The evaluation of the analysis is also displayed.

3.5.14.4 How should a game be analysed with Let’s Check?
A deep analysis that would normally last over an hour can now be carried out in a few
minutes.

The condition for this is that you have already won enough analysis credits by
contributing your own engine. The credits system achieves a balance between giving
and taking analysis power. For every position that you analyse while contributing your
engine you win 1 credit. If you analyse a complete game you win about 1.3 credits per
position. This difference is to benefit the server’s own interests.

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