I guess there is a mistake somewhere.

The actual mini source code

Code: Select all

```
if ( skipMove==INVALIDMOVE && alphaUpdated) TT::setEntry({bestMove,bestScore,hashBound,depth,computeHash(p)});
```

I am lost !

**Moderators:** hgm, Harvey Williamson, bob

This textbox is used to restore diagrams posted with the [d] tag before the upgrade.

Tests I ran tonight show that storing alpha bound is very bad in terms of elo (-200).

I guess there is a mistake somewhere.

The actual mini source code

removing the && alphaUpdated lose 200 elo ...

I am lost !

I guess there is a mistake somewhere.

The actual mini source code

Code: Select all

```
if ( skipMove==INVALIDMOVE && alphaUpdated) TT::setEntry({bestMove,bestScore,hashBound,depth,computeHash(p)});
```

I am lost !

Vivien Clauzon

Weini

https://github.com/tryingsomestuff/Weini

Minic

https://github.com/tryingsomestuff/Minic

Weini

https://github.com/tryingsomestuff/Weini

Minic

https://github.com/tryingsomestuff/Minic

Ok thanks for the test. Re-running another myself with Minic...

Vivien Clauzon

Weini

https://github.com/tryingsomestuff/Weini

Minic

https://github.com/tryingsomestuff/Minic

Weini

https://github.com/tryingsomestuff/Weini

Minic

https://github.com/tryingsomestuff/Minic

Unfortunatly I can confirm that in Minic, setting a alpha bound hash entry give very bad result, -200 elo in gauntlet with many other variations:

Code: Select all

```
0 minic_dev 95 15 1367 63.3% 37.2%
...
12 minic_test -113 54 86 34.3% 47.7%
```

Vivien Clauzon

Weini

https://github.com/tryingsomestuff/Weini

Minic

https://github.com/tryingsomestuff/Minic

Weini

https://github.com/tryingsomestuff/Weini

Minic

https://github.com/tryingsomestuff/Minic