World Draughts Forum

Yes Ildjarn, that is exactly the line I found.

http://fmjd.org/dias2/save/15477441873.png White to play and win. As any "normal" problem the solution is unique. The originality of this problem is the following: in this position white has to take 9 men. White has the choice amongst 228 legal moves and only one is winning. I guess it is record is...

Jaap, I understand what you said. Maybe be may idea is wrong but for the time being I think my explanation was not clear enough. you wrote: (i) You introduce a system for making draughts more interesting by punishing exchanges, that sounds positive, but (ii) In the meanwhile your system does not inc...

Let's take as example the following game Martijn van IJzendoorn - Wouter Wolff Wereldkampioenschap Talllinn 2017 01. 32-28 17-21 02. 34-30 11-17 03. 40-34 06-11 04. 31-26 19-23 05. 28x19 14x23 06. 37-31 10-14 07. 41-37 14-19 08. 46-41 18-22 09. 45-40 01-06 10. 33-29 13-18 11. 50-45 20-25 12. 37-32 2...

Taking your proposal 3328 1822 3833 1218 4238 0712 4742 0107 3430 2025 3126 x x30 2227 x x Yes the move 22-27 gets a penalty to Black but as I tried to explain in my previous post it is exactly a penalty which looks a very good investment for the future because black has got more space on the board:...

Though I get your point I am still quite convinced that taking space at the cost of few penalties cannot be a very a bad strategy. The idea of taking into account only the first five row is new for me and for the time beeing I do not know how this change can improve the system. I have certainly to t...

Again a very interesting point: After 34-29 20-25 29-24 18-22 31-26 14-19 40-35 x x 10-14 24-20 x 33-28 yes white is punished by 3 points but white gained a lot of space on the right of the board. I am certainly not an expert of such openning but as a consequence of the white choice I guess black wo...

Hi Jaap, Your example is very interestiong because it adresses is very important part of my proposal : the "quiet position" notion i.e. a position in which all pieces are in a quiet situation, I mean not attacked by an opponent piece. Let's take your example: After 1.34-30 the move 1...20-25 changes...

Let's take the beginning of the game Lognon - Georgiev during the Europeen Championship in Moskou 2018 01. 32-28 17-21 02. 37-32 11-17 03. 34-30 07-11 04. 30-25 21-26 05. 41-37 17-21 06. 31-27 12-17 07. 27-22 18x27 08. 28-23 19x28 09. 33x31 01-07 10. 39-33 07-12 11. 44-39 13-18 12. 50-44 09-13 13. 4...

In order to fight against draw games my basic idea is to penalyse the player who tries only to avoid the loss. In general the strategy of such player is based on a maximum of "exchanging moves" avoiding as far as possible any weakness in his or her position. To explain my system I need only to defin...

Hi Arjen,

Are you sure this last diagram is an improvment? Both 28-23 and 34-30 are winning moves aren't they?

1) https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_pdep_u64&expand=4119 So Haswell and later (~2014 and newer). Yours is Coffee Lake from 2018, so yes, BMI2 (in particular PDEP/PEXT are supported). 2) https://docs.microsoft.com/en-us/cpp/intrinsics/x64-amd64-intrinsics-list?view...

Hi, I am looking for buying a new computor and I would like to try to use the BMI1, BMI2 and TBM instructions. In this context can you help me on the two folllowing questions: 1) Do you know if Intel Core i9 8950HK supports these instructions ? 2) I am using Visual Studio 2008. What Visual Studio v...

Hi, I am looking for buying a new computor and I would like to try to use the BMI1, BMI2 and TBM instructions. In this context can you help me on the two folllowing questions: 1) Do you know if Intel Core i9 8950HK supports these instructions ? 2) I am using Visual Studio 2008. What Visual Studio ve...

Oops, could you avoid trying again and again to acquire Damy? I explained several time that working on draughts game in order to try to get the best program is no more motivating for me because draughts is a drawing game and Scan, Kingsrow and Dragon prove that regularly. Though I showed on several...