Dear Boris,

I believe that a general lack of chess engines - imprudent adoption of positional sacrifices, compensation for which occurs after 10 or more moves.

To address this shortcoming, it is necessary to change algorithm for choosing the best continuation, when the opponent offers sacrifice.

Dear Vladimir,

Do you have any ideas of improving chess engines?

I believe that chess engine should be considered as an adaptive decision-making system, the functioning of which is determined by customizable system of mandatory and orienting rules.

Definition of such a system of rules can be found in our article

https://www.researchgate.net/publication/259648120_The_Technology_of_Interactive_Resource_Allocation_in_Accordance_with_the_Customizable_System_of_Rules

Article The Technology of Interactive Resource Allocation in Accorda...

Could you give an example of orienting rules for chess engine?

System of orienting rules: "bishop against knight in the implementation of passed pawns.

I think chess engine should have a special system of rules to recognize a type of position (there should be a predefined set of types). Each type of position should correspond to a certain family of systems of rules to be used for a choice of move.

Some of my games with chess programs can be found here:

• http://vdilyin.blogspot.ru/2014/07/shredder-for-android-2600-elo-7-2014.html
• http://vdilyin.blogspot.ru/2013/06/deep-fritz-13-2305-elo.html
• http://vdilyin.blogspot.ru/2013/06/houdini.html

Dear Vladimir,

Do you continue to research the engine Houdini?

Dear Alexander,

No, I stopped using it because Windows 8 is disgusting for me. (I have "Houdini" under this operating system).

Dear Kamal, thanks for your answer.

You are playing against chess programs?

All chess engines have a tendency to play with open center performing d- or e-triangle (more preferable) pawn with exchanges as result it will be draw strategy. There are not too many games with closed center.