Search found 1623 matches

by Rein Halbersma
Sun Jan 13, 2019 23:36
Forum: het Nieuwe Forum
Topic: Match Shvartsman - Boomstra
Replies: 31
Views: 5833

Re: Match Shvartsman - Boomstra

Voor het eerst sinds Gantwarg-Wiersma 1981 wint een Nederlander weer eens een match van een ”Rus". Daarna nog Wiersma-Wirny (=), Gantwarg-Clerc (-), Tsjizjow-Sijbrands (=), Tsjizjow-Wiersma (-) en herkamp Tsjizjow-Clerc (-).
by Rein Halbersma
Mon Dec 17, 2018 15:33
Forum: Draughts, Computer, Internet
Topic: Development environment
Replies: 4
Views: 1611

Re: Development environment

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...
by Rein Halbersma
Sun Dec 16, 2018 18:52
Forum: Draughts, Computer, Internet
Topic: Checkers for Android: Full Game Navigation
Replies: 10
Views: 1903

Re: Checkers for Android: Full Game Navigation

See if you like it. The checkers app is soon to follow! I am rolling out a new version of Checkers for Android with: Use of parentheses for alternating moves Slightly nicer layout of columns Slightly improved display while navigating Ability to export game to clipboard or sharing as PDN (portable d...
by Rein Halbersma
Sun Dec 16, 2018 18:48
Forum: Draughts, Computer, Internet
Topic: Development environment
Replies: 4
Views: 1611

Re: Development environment

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...
by Rein Halbersma
Sat Dec 08, 2018 09:36
Forum: Draughts, Computer, Internet
Topic: Checkers for Android: Full Game Navigation
Replies: 10
Views: 1903

Re: Checkers for Android: Full Game Navigation

And I seem to recall that your chess app has much more functionality than checkers (endgame dbs pluggable engines e.g.), is that something you'd consider for checkers? And dare I ask if 10x10 draughts is in the cards? All requests duly noted! I have been on the fence on adding third party engine an...
by Rein Halbersma
Fri Dec 07, 2018 22:36
Forum: Draughts, Computer, Internet
Topic: Checkers for Android: Full Game Navigation
Replies: 10
Views: 1903

Re: Checkers for Android: Full Game Navigation

It works, thanks! Some tips: as a user I expect the printed moves to be clickable / scrollable, to quickly navigate the variation tree. Is that hard to add? Also, could you add either the move number (I.e. 1. 10-14 22-18 2. 6-10 etc.), or e.g. add parentheses around the 2nd player’s moves: 10-14 (2...
by Rein Halbersma
Fri Dec 07, 2018 20:37
Forum: Draughts, Computer, Internet
Topic: Checkers for Android: Full Game Navigation
Replies: 10
Views: 1903

Re: Checkers for Android: Full Game Navigation

Hi Aart, Just installed it on my Android 8.0 phone. I don't see move history, and only one move-back button. What gives? Thanks for your interest Rein! I did a gradual roll-out of the new feature. It is at 100% now, so you should get an update soon. Please let me know if you find any bugs (other th...
by Rein Halbersma
Fri Dec 07, 2018 10:02
Forum: Draughts, Computer, Internet
Topic: Checkers for Android: Full Game Navigation
Replies: 10
Views: 1903

Re: Checkers for Android: Full Game Navigation

It has been a while, but I recently added something to Checkers for Android I had been planning for a long time: a notation window and full game navigation, similar to my chess app (and recently also the reversi app). No more artificial restrictions on the undo, one can simply go back and forth in ...
by Rein Halbersma
Thu Nov 15, 2018 08:40
Forum: Draughts, Computer, Internet
Topic: Perft for all recognized draughts variants
Replies: 23
Views: 9801

Re: Perft for all recognized draughts variants

van http://www.friesdammen.nl/dam/page3.php?articleID=260 Concurrentie voor Lusoris? Maar wellicht dat Rein nu ook al een speelbare versie heeft? Yes and no. I have a Frisian move generator which knows all the rules except the maximum of 3 consecutive king moves. (I also don't have implemented yet ...
by Rein Halbersma
Thu Aug 23, 2018 09:33
Forum: het Nieuwe Forum
Topic: 55 uur 163 km zwemmen of 48 uur simultaan blind dammen
Replies: 1
Views: 1169

Re: 55 uur 163 km zwemmen of 48 uur simultaan blind dammen

NicoV wrote:Wat is zwaarder ?
Ik heb Sijbrands of Prosman nog nooit op een brancard afgevoerd zien worden. (Wellicht dat sommige tegenstanders wel hebben moeten opgeven met uitputtingsverschijnselen).
by Rein Halbersma
Sat Aug 11, 2018 09:39
Forum: het Nieuwe Forum
Topic: WK Fries Dammen
Replies: 14
Views: 3907

Re: WK Fries Dammen

Het beslissende fragment: Toch erg jammer. Het "haakje" 5-10 is niet heel moeilijk, en de overige witte schijven stonden op "verbonden" velden, dus dat de stand combinatiegevoelig was, was wel logisch (wit had zelf ook zulke opties). In een tv filmpje zei Georgiev al dat hij continu combinaties moe...
by Rein Halbersma
Thu Aug 09, 2018 13:54
Forum: Draughts, Computer, Internet
Topic: Complexity of Checkers and Draughts on board sizes 6x6/8x8/10x10/12x12/14x14
Replies: 11
Views: 7879

Re: Complexity of Checkers and Draughts on board sizes 6x6/8x8/10x10/12x12/14x14

I changed the table data type from 64-bit integer to BigInteger, and new results are: 12x12 5732895173614141678179591577998733384657257103359 = 5.7 x 10^48 14x14 7717880162220474034203925206374892518645244798128637950441522462719 = 7.7 x 10^66 My new Python program can now reproduce this on all dig...
by Rein Halbersma
Mon Aug 06, 2018 18:08
Forum: het Nieuwe Forum
Topic: WK Fries Dammen
Replies: 14
Views: 3907

Re: WK Fries Dammen

Paul van de Veen wrote:Fraaie en -voor mij- totaal onverwachte eindspelcombi van Georgiev!
Sensationele uitslag: Kooistra is 19-voudig kampioen Fries dammen (sinds 1986, laatste titel 2016). Georgiev had ook tegen Tiemensma de winst voor het grijpen, en is nog ongeslagen. De titel lonkt.
by Rein Halbersma
Thu Aug 02, 2018 18:26
Forum: Draughts, Computer, Internet
Topic: A quite uncertain position
Replies: 3
Views: 1241

Re: A quite uncertain position

It sounds for me as a confirmation it is a draw. Can you tell me if the score done by Kingsrow is decreasing with the time? +68 is still a substantial advantage isn't it? I will let it run overnight. But +68 is less than 1 piece, and in endgames, it's drawish (in the opening / early middle game, it...
by Rein Halbersma
Thu Aug 02, 2018 17:16
Forum: Draughts, Computer, Internet
Topic: A quite uncertain position
Replies: 3
Views: 1241

Re: A quite uncertain position

Hi, The following position appears during last Nijmegen Open at the 7th round Antony Alavoine - Arnoud de Greef Position after 34.48x37 http://fmjd.org/dias2/save/15332185332.png Black to play Previously in the game Black got a winning position but after a weak black move white reached the followin...