Author: Tim Foden
Date: 01:10:50 07/28/04
Go up one level in this thread
On July 28, 2004 at 02:07:15, Gopikrishna wrote:
>On July 27, 2004 at 18:27:37, Robert Hyatt wrote:
>
>>On July 27, 2004 at 18:07:31, Gopikrishna wrote:
>>
>>>5 0.030 -3.849 35581 Nf5 {++} Qb1+ 2. Kf2 fxe3+ 3. Ke2 Qe1+ 4. Kxe1
>>> exd2+ 5. Kxd2
>>>6 0.061 -1.326 70597 Nf5 {++} Qb1+ 2. Kf2 fxe3+ 3. Ke2 Bf3+ 4. gxf3 Bb4
>>> 5. Qg5+ Kf8 6. Qg7+ Ke8 7. Qxh8+ Bf8 8. Nxe3
>>>
>>>Like 5 ply search means its just normal moves excluding check and capture
>>>extensions right? So it can be (5 normal moves + 3 check moves + 2 capture
>>>moves) right?
>>
>>
>>Who knows. Could be 5 plies + checks + captures + threats + passed pawn pushes
>>+ singular moves + who-knows-what. Depends on the program/programmer...
>
>No like I mean how do you all calculate? That is my doubt is if suppose any
>check move is made, then that is not counted right?
No. You have the cause and effect the wrong way around.
I mean its an extension I
>believe? And similarly for captures also right? So suppose if we are searching 4
>plies deep and if there is 2 check moves then we effectively search 6 plies deep
>right?
Yes, this is the right way around.
>>>5 0.030 -3.849 35581 Nf5 {++} Qb1+ 2. Kf2 fxe3+ 3. Ke2 Qe1+ 4. Kxe1
>>> exd2+ 5. Kxd2
In the above, the program was saying: "search 5 moves deep".
The logic during the search would go something like this:
Depth=5... Nf5
Depth=4... Qb1+
Depth=4... Kf2
Depth=3... fxe3+
Depth=3... Ke2
Depth=2... Qe1+
Depth=2... Kxe1
Depth=1... exd2+
Depth=1... Kxd2
Depth=0... <empty q-search>
Does this make it any clearer at all? Or just more confusing? :)
Cheers, Tim.
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