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Daily iPhone chess programs releases
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Christophe Théron



Joined: 11 Mar 2006
Posts: 815
Location: Guadeloupe (french caribbean island)
PostPost subject: Re: Daily iPhone chess programs releases    Posted: Wed Mar 09, 2011 10:01 am Reply to topic Reply with quote
Tord Romstad wrote:
Wow.

This is the best computer chess news I have seen since -- I'm not sure, but it must be several years. Thanks a lot for Chess Tiger for iPhone, Christophe!

tiger wrote:
Wow Julien you are damn fast!

The application has appeared on the App Store less than 12 hours ago and is still on the fourth or fifth page (yes the last page) when you search for "chess". In other words it is totally lost amongst 200 chess programs or so...


Don't worry, it will climb. Believe it or not, Stockfish is close to the top of the list.

Quote:
What I have not included in the App Store description is that the chess engine is exactly the same as the PC version of Chess Tiger 2011, which has not been released yet for PC. So even advanced players, as you have noticed, will get a run for their money! Smile


There will be a Macintosh version too, I suppose? Razz



Actually there is already one... Sort of! Smile

The development went like this:

- port the Chess Tiger engine from Linux to Mac. As Chess Tiger is basically a terminal application, it did not take long. I just had to adapt a few low-level modules to be compatible with Darwin and I was done. Just took a few days.

- port the Chess Tiger terminal application to iPhone by replacing the console interface by a text-only UIKit interface. At that point I could play chess by entering e2e4 on the iPhone keyboard, and looking at a microscopic character-only board representation on the iPhone screen. When doing this port I started to learn Objective-C.

Then I had to pause the development because I had another application to write. Incidently I decided to write it in C# using GTK+ because I wanted it to be portable on Linux, Mac and Windows. This was my opportunity to learn object-oriented programming. It took me one full month to write this application and to start understanding and using the OOP concepts. This was done entirely in MonoDevelop which is VERY good and has taken much from Visual Studio and Xcode..

I went back to Chess Tiger for iPhone and at that point was really tempted to write the GUI in C# with MonoTouch. Unfortunately at that time Apple had banned thid-party tools from iPhone apps. It was quite clear that the target was Flash and not MonoTouch. There were constant reports that MonoTouch aplications were still approved in the App Store, but I did not feel very confident to invest so much time and risk being rejected, so I decided to use Objective-C.

BTW as you know Apple has since reversed the decision and third-party development tools are now "legal". Looking back, I think I should have used C# with MonoTouch.

Objective-C has the invaluable advantage to be 100% compatible with C. Any C code can be integrated into an Objective-C program. This has been a very helpful feature for me.

However Objective-C is a language from the eighties, and while it has been updated several times there are 3 things I still really hate about it:

- Having to maintain ".h" files. I admit C# has spoiled me and that it is probably debatable, but there is no question that you can program much faster and make less mistakes just because of this in C#. However it is such a fondamental feature in Objectice-C (like in C) that there is no hope that it can be improved.

- Properties are an afterthought in Objective-C. While they are not strictly necessary in OOP, they make programming easier. If iwanted to stick with purely elegant programming, maybe I would use Forth. But I want the language to help me, I want syntactic sugar. Properties in Objective-C are acceptable, but require that I pay attention to what I do. This energy I should be able to spend to more productive tasks.

- And finally, the real killer: there is NO GARBAGE COLLECTION on iOS. The feature is not missing in Objective-C actually, because it has been implemented years ago and is available for Mac applications. But not on iOS. The general belief is that Apple decided against GC for now because of performance concerns. But MonoTouch has it and I have not heard that it was slow. Anyway... The lack of garbage collection makes programming in Objective-C for iOS extremely painful. Half the variables you manipulate are objects (a string is an object for example) and you need to pay attention about memory management ALL THE TIME. Far too much of your energy is consumed by taking care of this problem. Screw just a release on one variable up and your program will crash. And it will not crash where you screwed it up, it will crash in a totally unrelated place and you will spend the rest of the day trying to figure it out. Or worse, it will crash only on the device and not on the simulator. Or the opposite. Or it will corrupt something, somewhere else, and it may go unnoticed until you release the product.

While memory allocation is naturally also a concern in C, C++ and many other languages, it is especially painful in OO programming languages, where basically everything is an object and has to be allocated and later released (freed).

So I have learned that an OO language without garbage collection is an absolute NO-NO, and unfortunately I have spent months working with one.

Brothers and sisters, listen to me: Objective-C on iOS is a bitch, and you'd better stay away from it. At least until it gets decent garbage collection.

My guess is that it will get it when all iPhones, iPads and iPod touch get a dual core processor. At this time only the iPad 2 has one. There are hints that some work on GC in iOS have been done, but I guess we will have to wait for 2 years or more to get it for real.


Sorry for the rant Tord, I think you already know all of that. It's a warning for people who want to get into iOS programming and will read this.


So back to your question: the Chess Tiger engine works very well on Macs but it is only a terminal application.

I guess I could make an UCI engine from it but I have so many other priorities that I do not see this happening before the post-PC (and post-Mac) era is on us. Smile



Quote:

Quote:
I will leave it to the rating lists to measure the strength of the program, however I have already noticed that Stockfish has problems against Tiger on this platform,


I got 1.5-0.5 in Stockfish's favor in the first two games I played, but of course two games are nothing, and I was cheating by running Chess Tiger on an iPhone and Stockfish on the 25% faster iPad 1, and by using a development version of Stockfish which is stronger than the public iOS Stockfish.

Quote:
which was not totally unexpected as Stockfish is a 64 bits program and runs slowly on a 32 bits iPhone/iPad.


Yes. I should probably write a 32-bit version some time. Thanks for pushing me. Smile



Actually I was surprised to see that Tiger was not slaughtered, but eventually it does not matter.

Look at how strong our programs are on a modest iPhone. If you are still concerned by strength and investing considerable time on it, then you are working for less than 1% of your users.



Quote:

Quote:
About the minus sides you have mentionned:

- This is an introductory price. Sorry, but it will go UP in a few days.


I am not sure this is a good idea, but of course it is your decision.



There is no doubt that I would get more users and more ego satisfaction by giving it away for free.

As my ego does not need much fixing anymore nowadays, I actually appreciate more that people spent a very modest amount of money on a product that took me almost a year and a half of my life, and that is going to take me even more time and energy as I improve it.

I'm sorry about how psychotic I sound by implying that I would like to get money from my work, and I how I am going to be flamed for this.




Quote:

Quote:
- The application has High-resolution graphics built inside, so on iPhone 4 or iPod touch 4 it uses the full definition of the retina display. Unfortunately the iPad does not use these high-resolution graphics, which is a shame.


Not sure I understand what you mean here. The iPad has even higher resolution than the iPhone 4. Stockfish uses 40x40 bitmaps on the iPhone <4, 80x80 bitmaps on the iPhone 4, and 96x96 bitmaps on the iPad. Most of the piece sets are actually antialiased, down-scaled versions of 300x300 bitmaps.



Chess Tiger is a retina application (compatible with both 320x480 and 640x960 screens) but the iPad just takes the 320x480 resolution and scales it up. This results in blurred graphics, mainly visible on text.

There must be both technical and marketing reasons for this, but I wish they would just display the 640x960 version of your iPhone/iPod touch app when you display it zoomed on an iPad.


Quote:

A few feature requests:

Would it be possible to display all scores from white's point of view, at least as an option?

Could you please add an option for a plain, non-textured background?

Could you please add the possibility to take back and replay moves by swiping left and right, as in most other iOS chess programs?



These are good suggestions that I add immediately to my (already quite long) list of TODOs.

Thanks Tord.



// Christophe
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Subject Author Date/Time
Daily iPhone chess programs releases Julien MARCEL Tue Mar 08, 2011 1:36 pm
      Re: Daily iPhone chess programs releases Ted Summers Tue Mar 08, 2011 1:48 pm
            Re: Daily iPhone chess programs releases Dom Leste Tue Mar 08, 2011 2:43 pm
      Re: Daily iPhone chess programs releases Christophe Théron Tue Mar 08, 2011 5:53 pm
            Re: Daily iPhone chess programs releases Julien MARCEL Tue Mar 08, 2011 7:13 pm
                  Re: Daily iPhone chess programs releases Tord Romstad Tue Mar 08, 2011 8:02 pm
                        Re: Daily iPhone chess programs releases Don Dailey Fri Feb 17, 2012 7:20 pm
            Re: Daily iPhone chess programs releases Tord Romstad Tue Mar 08, 2011 7:49 pm
                  Re: Daily iPhone chess programs releases Julien MARCEL Tue Mar 08, 2011 8:12 pm
                        Re: Daily iPhone chess programs releases Christophe Théron Wed Mar 09, 2011 8:25 am
                              Re: Daily iPhone chess programs releases Julien MARCEL Wed Mar 09, 2011 10:57 am
                                    Re: Daily iPhone chess programs releases Christophe Théron Wed Mar 09, 2011 4:00 pm
                        Re: Daily iPhone chess programs releases Tord Romstad Wed Mar 09, 2011 8:18 pm
                  Re: Daily iPhone chess programs releases Christophe Théron Wed Mar 09, 2011 10:01 am
                        Re: Daily iPhone chess programs releases Tord Romstad Wed Mar 09, 2011 8:41 pm
            Re: Daily iPhone chess programs releases Tom Giampietro Wed Mar 09, 2011 2:06 am
                  Re: Daily iPhone chess programs releases Christophe Théron Wed Mar 09, 2011 10:40 am
                        Re: Daily iPhone chess programs releases Tom Giampietro Wed Mar 09, 2011 1:44 pm
                              Re: Daily iPhone chess programs releases Julien MARCEL Wed Mar 09, 2011 4:00 pm
                                    Re: Daily iPhone chess programs releases Christophe Théron Wed Mar 09, 2011 4:08 pm
                                          Re: Daily iPhone chess programs releases Julien MARCEL Wed Mar 09, 2011 4:11 pm
                                    Re: Daily iPhone chess programs releases Albert Silver Wed Mar 09, 2011 4:37 pm
            Re: Daily iPhone chess programs releases Steve Maughan Wed Mar 09, 2011 2:44 am
                  Re: Daily iPhone chess programs releases Alex Brown Wed Mar 09, 2011 6:39 am
                  Re: Daily iPhone chess programs releases Christophe Théron Wed Mar 09, 2011 10:52 am
                        Re: Daily iPhone chess programs releases Robert Flesher Wed Mar 09, 2011 1:04 pm
            Re: Daily iPhone chess programs releases Dom Leste Wed Mar 09, 2011 7:38 am
                  Re: Daily iPhone chess programs releases Christophe Théron Wed Mar 09, 2011 10:43 am
            Re: Daily iPhone chess programs releases Kaj Soderberg Wed Mar 09, 2011 8:57 pm
                  Re: Daily iPhone chess programs releases Christophe Théron Thu Mar 10, 2011 2:02 am
      Re: Daily iPhone chess programs releases S.Taylor Wed Mar 09, 2011 9:55 pm
            Re: Daily iPhone chess programs releases Christophe Théron Thu Mar 10, 2011 2:04 am
                  Re: Daily iPhone chess programs releases Stefan Brettschneider Tue Mar 15, 2011 6:58 pm
                        Re: Daily iPhone chess programs releases Julien MARCEL Tue Mar 15, 2011 10:38 pm
                              Re: Daily iPhone chess programs releases Tom Giampietro Tue Mar 15, 2011 11:53 pm
                                    Re: Daily iPhone chess programs releases Alex Brown Wed Mar 16, 2011 1:03 am
                                    Re: Daily iPhone chess programs releases Tord Romstad Wed Mar 16, 2011 8:32 am
                                          Re: Daily iPhone chess programs releases Steve Maughan Wed Mar 16, 2011 1:00 pm
                                                Re: Daily iPhone chess programs releases Tord Romstad Wed Mar 16, 2011 3:18 pm
                                                      Re: Daily iPhone chess programs releases Tom Giampietro Wed Mar 16, 2011 4:00 pm
                                                            Re: Daily iPhone chess programs releases Julien MARCEL Thu Mar 17, 2011 11:43 am
                              Re: Daily iPhone chess programs releases Tord Romstad Wed Mar 16, 2011 7:48 am
                              Re: Daily iPhone chess programs releases Alex Brown Thu Mar 17, 2011 1:38 pm
                                    Re: Daily iPhone chess programs releases Tord Romstad Fri Mar 18, 2011 1:21 pm
                                          Re: Daily iPhone chess programs releases Julien MARCEL Sat Mar 26, 2011 1:44 pm
                                                Re: Daily iPhone chess programs releases Dr.Wael Deeb Sat Mar 26, 2011 3:35 pm
                                                      Re: Daily iPhone chess programs releases Stefan Brettschneider Sat Mar 26, 2011 4:01 pm
                                                      Re: Daily iPhone chess programs releases Julien MARCEL Sat Mar 26, 2011 4:04 pm
                                                            Re: Daily iPhone chess programs releases Julien MARCEL Mon Mar 28, 2011 9:52 am
                                                            Re: Daily iPhone chess programs releases Alex Brown Mon Mar 28, 2011 11:31 pm
                                                                  ChessTiger Update Stefan Brettschneider Sat Apr 09, 2011 1:56 pm
                                                                        Re: ChessTiger Update Alex Brown Sat Apr 09, 2011 8:32 pm
                                                                        Re: ChessTiger Update Christophe Théron Sun Apr 10, 2011 12:13 am
                                                                              Re: ChessTiger Update Tom Giampietro Sun Apr 10, 2011 12:38 am
                                                                              Re: ChessTiger Update Julien MARCEL Sun Apr 10, 2011 12:50 am
                                                                                    Re: ChessTiger Update Christophe Théron Sun Apr 10, 2011 2:50 am
                                                                              Re: ChessTiger Update Justin Blanchard Sun Apr 10, 2011 1:18 am
                                                                                    Re: ChessTiger Update Christophe Théron Sun Apr 10, 2011 2:59 am
                                                                                          Re: ChessTiger Update Justin Blanchard Sun Apr 10, 2011 3:59 am
                                                                                          Re: ChessTiger Update Mike Scheidl Sun Apr 10, 2011 5:03 am
                                                                                          Re: ChessTiger Update Christophe Théron Sun Apr 10, 2011 6:59 am
                                                                                          Re: ChessTiger Update Mike Scheidl Sun Apr 10, 2011 4:15 pm
                                                                                          Re: ChessTiger Update Christophe Théron Sun Apr 10, 2011 7:05 pm
                                                                                          Re: ChessTiger Update Mike Scheidl Sun Apr 10, 2011 11:40 pm
                                                                                          Re: ChessTiger Update Christophe Théron Tue Apr 12, 2011 2:14 am
                                                                                          Re: ChessTiger Update Albert Silver Sun Apr 10, 2011 5:17 am
                                                                                          Re: ChessTiger Update Christophe Théron Sun Apr 10, 2011 7:12 am
                                                                                          Re: ChessTiger Update Tom Giampietro Sun Apr 10, 2011 7:21 am
                                                                                          Re: ChessTiger Update Christophe Théron Sun Apr 10, 2011 8:46 am
                                                                                          Re: ChessTiger Update Tom Giampietro Sun Apr 10, 2011 5:45 pm
                                                                                          Re: ChessTiger Update Miguel A. Ballicora Sun Apr 10, 2011 2:36 pm
                                                                                          Re: ChessTiger Update Christophe Théron Sun Apr 10, 2011 6:49 pm
                                                                                          Re: ChessTiger Update Tord Romstad Sun Apr 10, 2011 8:06 pm
                                                                                          Re: ChessTiger Update Christophe Théron Tue Apr 12, 2011 2:20 am
                                                                                          Re: ChessTiger Update M ANSARI Wed Apr 13, 2011 2:50 am
                                                                                          Re: ChessTiger Update Christophe Théron Wed Apr 13, 2011 4:49 am
                                                                                          Re: ChessTiger Update Milos Stanisavljevic Wed Apr 13, 2011 11:40 pm
                                                                                          Re: ChessTiger Update M ANSARI Thu Apr 14, 2011 3:40 am
                                                                                          Re: ChessTiger Update Christophe Théron Thu Apr 14, 2011 8:49 am
                                                                                          Re: ChessTiger Update Julien MARCEL Thu Apr 14, 2011 5:17 pm
                                                                                          Re: ChessTiger Update Steve Maughan Thu Apr 14, 2011 6:32 pm
                                                                                          Re: ChessTiger Update Julien MARCEL Thu Apr 14, 2011 6:36 pm
                                                                                          Re: ChessTiger Update Steve Maughan Thu Apr 14, 2011 6:52 pm
                                                                                          Re: ChessTiger Update Julien MARCEL Thu Apr 14, 2011 7:07 pm
                                                                                          Re: ChessTiger Update Albert Silver Thu Apr 14, 2011 7:17 pm
                                                                                          Re: ChessTiger Update Alex Brown Fri Apr 15, 2011 3:09 am
                                                                                          Re: ChessTiger Update M ANSARI Fri Apr 15, 2011 6:02 am
                                                                                          Re: ChessTiger Update Steve Maughan Fri Apr 15, 2011 12:25 pm
                                                                                          Re: ChessTiger Update Christophe Théron Fri Apr 15, 2011 1:55 pm
                                                                                          Re: ChessTiger Update Steve Maughan Fri Apr 15, 2011 2:24 pm
                                                                                          Re: ChessTiger Update Kaj Soderberg Fri Apr 15, 2011 4:04 pm
                                                                                          Re: ChessTiger Update Christophe Théron Sun Apr 17, 2011 12:44 am
                                                                                          Re: ChessTiger Update Alex Brown Sun Apr 17, 2011 5:50 am
                                                                                          Re: ChessTiger Update Christophe Théron Sun Apr 17, 2011 9:31 am
                                                                                          Re: ChessTiger Update Robert Flesher Tue Apr 19, 2011 8:25 pm
                                                                                          Re: ChessTiger Update Christophe Théron Wed Apr 20, 2011 12:29 am
                                                                                          Re: ChessTiger Update Christophe Théron Sun Apr 17, 2011 9:25 am
                                                                                          Re: ChessTiger Update Tord Romstad Mon Apr 18, 2011 7:33 am
                                                                                          Re: ChessTiger Update Justin Blanchard Tue Apr 19, 2011 8:37 pm
                                                                                          Re: ChessTiger Update Tom Giampietro Mon Apr 18, 2011 12:32 pm
                                                                                          Re: ChessTiger Update Tord Romstad Mon Apr 18, 2011 1:57 pm
                                                                                          Re: ChessTiger Update Christophe Théron Tue Apr 19, 2011 9:45 am
                                                                                          Re: ChessTiger Update Christophe Théron Tue Apr 19, 2011 9:24 am
                                                                                          Re: ChessTiger Update Tom Giampietro Tue Apr 19, 2011 1:04 pm
                                                                                          Re: ChessTiger Update Justin Blanchard Tue Apr 19, 2011 8:40 pm
                                                                                          Re: ChessTiger Update Christophe Théron Wed Apr 20, 2011 1:36 am
                                                                                          Re: ChessTiger Update Dom Leste Wed Apr 20, 2011 5:44 am
                                                                                          Re: ChessTiger Update Christophe Théron Fri Apr 22, 2011 12:36 am
                                                                                          Re: ChessTiger Update Steve Maughan Wed Apr 20, 2011 12:26 pm
                                                                                          Re: ChessTiger Update Ricardo Barreira Wed Apr 20, 2011 9:40 pm
                                                                                          Re: ChessTiger Update Steve Maughan Wed Apr 20, 2011 10:26 pm
                                                                                          Re: ChessTiger Update Christophe Théron Fri Apr 22, 2011 1:38 am
                                                                                          Re: ChessTiger Update Justin Blanchard Wed Apr 20, 2011 11:55 pm
                                                                                          Re: ChessTiger Update Julien MARCEL Thu Apr 21, 2011 12:02 am
                                                                                          Re: ChessTiger Update Christophe Théron Fri Apr 22, 2011 1:00 am
                                                                                          Re: ChessTiger Update Tord Romstad Mon Apr 18, 2011 7:23 am
                                                                                          Re: ChessTiger Update Steve Maughan Mon Apr 18, 2011 2:01 pm
                                                                                          Re: ChessTiger Update M ANSARI Sat Apr 16, 2011 6:57 am
                                                                                          Re: ChessTiger Update Tord Romstad Mon Apr 18, 2011 7:15 am
                                                                                          Re: ChessTiger Update Christophe Théron Tue Apr 19, 2011 9:50 am
                                                                                          Re: ChessTiger Update Julien MARCEL Tue Apr 19, 2011 10:11 am
                                                                                          Re: ChessTiger Update George Bodkin Wed Apr 20, 2011 10:58 pm
                                                                                          Re: ChessTiger Update George Bodkin Wed Apr 20, 2011 11:19 pm
                                                                                          Re: ChessTiger Update Tom Giampietro Tue Apr 19, 2011 1:10 pm
                                                                                          Re: ChessTiger Update Christophe Théron Wed Apr 20, 2011 4:05 am
                                                                                          Re: ChessTiger Update Josh Manion Wed Apr 20, 2011 5:32 am
                                                                                          Re: ChessTiger Update Christophe Théron Fri Apr 22, 2011 1:42 am
                                                                                          Re: ChessTiger Update Tom Giampietro Wed Apr 20, 2011 1:33 pm
                                                                                          Re: ChessTiger Update Christophe Théron Fri Apr 22, 2011 1:44 am
                                                                                          Re: ChessTiger Update Luis Smith Fri Apr 22, 2011 2:41 am
                                                                                          Re: ChessTiger Update Tom Giampietro Fri Apr 22, 2011 2:54 am
                                                                                          Re: ChessTiger Update Christophe Théron Sat Apr 23, 2011 2:56 am
                                                                                          Re: ChessTiger Update Miguel A. Ballicora Sun Apr 10, 2011 2:37 pm
      Re: Daily iPhone chess programs releases Julien MARCEL Thu Apr 28, 2011 10:02 pm
            Re: Daily iPhone chess programs releases Christophe Théron Fri Apr 29, 2011 2:38 am
                  Re: Daily iPhone chess programs releases Julien MARCEL Wed May 11, 2011 5:56 pm
                        Re: Daily iPhone chess programs releases Julien MARCEL Tue May 17, 2011 1:31 pm
                              Re: Daily iPhone chess programs releases Julien MARCEL Fri May 20, 2011 10:07 am
                                    Re: Daily iPhone chess programs releases Julien MARCEL Sat Nov 05, 2011 11:22 am
                                          Re: Daily iPhone chess programs releases Julien MARCEL Mon Nov 21, 2011 5:14 pm
                                                Re: Daily iPhone chess programs releases Julien MARCEL Fri Dec 02, 2011 1:58 am
                                                      Re: Daily iPhone chess programs releases Stefan Brettschneider Fri Dec 02, 2011 7:20 pm
                                                            Re: Daily iPhone chess programs releases Julien MARCEL Fri Dec 02, 2011 8:10 pm
                                                                  Re: Daily iPhone chess programs releases Ralph Stoesser Fri Dec 02, 2011 9:29 pm
                                                                  Re: Daily iPhone chess programs releases Tord Romstad Fri Dec 02, 2011 10:36 pm
                                                                        Re: Daily iPhone chess programs releases Julien MARCEL Fri Dec 02, 2011 10:51 pm
                                                                        Re: Daily iPhone chess programs releases Stefan Brettschneider Sat Dec 03, 2011 5:36 pm
                                                                              Re: Daily iPhone chess programs releases Alex Brown Thu Dec 15, 2011 3:24 am
                                                                                    Re: Daily iPhone chess programs releases Julien MARCEL Thu Dec 22, 2011 1:06 am
                                                                                          Re: Daily iPhone chess programs releases Julien MARCEL Thu Dec 22, 2011 2:36 am
                                                                                          Re: Daily iPhone chess programs releases cambrose Thu Dec 22, 2011 8:00 pm
                                                                                          Re: Daily iPhone chess programs releases Julien MARCEL Thu Dec 22, 2011 8:12 pm
                                                                                          Re: Daily iPhone chess programs releases cambrose Thu Dec 22, 2011 8:54 pm
                                                                                          Re: Daily iPhone chess programs releases Julien MARCEL Sat Dec 24, 2011 12:18 am
                                                                                          Re: Daily iPhone chess programs releases cambrose Fri Dec 30, 2011 7:03 pm
                                                                                          Re: Daily iPhone chess programs releases George Speight Sat Dec 31, 2011 3:50 am
                                                                                          Re: Daily iPhone chess programs releases Julien MARCEL Fri Feb 17, 2012 5:04 pm
                                                                                          Re: Daily iPhone chess programs releases Alex Brown Sat Feb 18, 2012 4:05 am
                                                                                          Re: Daily iPhone chess programs releases Bryan Whitby Sat Feb 18, 2012 1:36 pm
                                                                                          Re: Daily iPhone chess programs releases Alex Brown Sun Feb 19, 2012 6:07 am
                                                                                          Re: Daily iPhone chess programs releases Julien MARCEL Sun Feb 19, 2012 10:13 pm
                                                                                          Re: Daily iPhone chess programs releases Julien MARCEL Wed Feb 22, 2012 12:33 am
                                                                                          Re: Daily iPhone chess programs releases Christophe Théron Wed Feb 22, 2012 2:36 am
                                                                                          Re: Daily iPhone chess programs releases Steve Maughan Wed Feb 22, 2012 2:45 am
                                                                                          Re: Daily iPhone chess programs releases Alex Brown Wed Feb 22, 2012 2:53 am
                                                                                          Re: Daily iPhone chess programs releases Steve Maughan Wed Feb 22, 2012 2:58 am
                                                                                          Re: Daily iPhone chess programs releases Christophe Théron Wed Feb 22, 2012 12:38 pm
                                                                                          Re: Daily iPhone chess programs releases Alex Brown Wed Feb 22, 2012 2:46 am
                                                                                          Re: Daily iPhone chess programs releases Christophe Théron Wed Feb 22, 2012 12:39 pm
                                                                                          Re: Daily iPhone chess programs releases Julien MARCEL Wed Feb 22, 2012 10:09 am
                                                                                          Re: Daily iPhone chess programs releases Christophe Théron Wed Feb 22, 2012 12:54 pm
                                                                                          Re: Daily iPhone chess programs releases Martin Sedlak Wed Feb 22, 2012 1:10 pm
                                                                                          Re: Daily iPhone chess programs releases Don Dailey Wed Feb 22, 2012 1:27 pm
                                                                                          Re: Daily iPhone chess programs releases Martin Sedlak Wed Feb 22, 2012 2:09 pm
                                                                                          Re: Daily iPhone chess programs releases Steve Maughan Wed Feb 22, 2012 2:10 pm
                                                                                          Re: Daily iPhone chess programs releases Christophe Théron Wed Feb 22, 2012 11:43 pm
                                                                                          Re: Daily iPhone chess programs releases Christophe Théron Wed Feb 22, 2012 11:38 pm
                                                                                          Re: Daily iPhone chess programs releases Christophe Théron Wed Feb 22, 2012 12:57 pm
      Re: Daily iPhone chess programs releases Alfonso Renati Sun Mar 04, 2012 8:57 am
            Re: Daily iPhone chess programs releases Julien MARCEL Sun Mar 04, 2012 9:23 am
                  Re: Daily iPhone chess programs releases Alfonso Renati Sun Mar 04, 2012 11:45 am
            Re: Daily iPhone chess programs releases Tom Giampietro Wed Apr 18, 2012 7:03 pm
                  Re: Daily iPhone chess programs releases Julien MARCEL Wed Apr 18, 2012 7:26 pm
                        Re: Daily iPhone chess programs releases Tom Giampietro Thu Apr 19, 2012 3:56 am
                              Re: Daily iPhone chess programs releases Julien MARCEL Fri Apr 20, 2012 8:41 am
                                    Re: Daily iPhone chess programs releases Julien MARCEL Tue May 01, 2012 2:44 pm
                                          Re: Daily iPhone chess programs releases Ted Wong Tue May 01, 2012 11:41 pm
                                                Re: Daily iPhone chess programs releases Julien MARCEL Tue May 01, 2012 11:50 pm
                                                      Re: Daily iPhone chess programs releases Alex Brown Wed May 02, 2012 1:18 am
                                                            Re: Daily iPhone chess programs releases Ted Wong Wed May 02, 2012 1:27 am
                                                                  Re: Daily iPhone chess programs releases Alex Brown Wed May 02, 2012 2:18 am
                                    Re: Daily iPhone chess programs releases Julien MARCEL Fri Jun 08, 2012 9:57 pm
                                          Re: Daily iPhone chess programs releases Julien MARCEL Thu Jul 19, 2012 12:05 pm
                                                Re: Daily iPhone chess programs releases Rémi Coulom Thu Jul 19, 2012 1:06 pm
                                                Re: Daily iPhone chess programs releases Rémi Coulom Thu Jul 19, 2012 3:05 pm
                                                      Re: Daily iPhone chess programs releases Martin Sedlak Tue Jul 24, 2012 1:03 pm
                                                            Re: Daily iPhone chess programs releases Stefan Brettschneider Wed Jul 25, 2012 2:42 pm
                                                                  Re: Daily iPhone chess programs releases Julien MARCEL Wed Jul 25, 2012 3:24 pm
                                                                        Re: Daily iPhone chess programs releases Martin Sedlak Wed Jul 25, 2012 8:07 pm
                                                                        Re: Daily iPhone chess programs releases Tom Giampietro Thu Jul 26, 2012 2:31 pm
                                                                              Re: Daily iPhone chess programs releases Stefan Brettschneider Mon Jul 30, 2012 12:21 pm
                                                                                    Re: Daily iPhone chess programs releases Julien MARCEL Thu Aug 02, 2012 8:47 am
                                                                                          Re: Daily iPhone chess programs releases Ted Wong Thu Aug 02, 2012 9:40 am
                                                                                          Re: Daily iPhone chess programs releases Julien MARCEL Thu Aug 02, 2012 9:46 am
                                                                                          Re: Daily iPhone chess programs releases Ted Wong Thu Aug 02, 2012 9:52 am
                                                                                          Re: Daily iPhone chess programs releases Julien MARCEL Thu Aug 02, 2012 10:01 am
                                                                                          Re: Daily iPhone chess programs releases Bryan Whitby Thu Aug 02, 2012 2:51 pm
                                                                                          Re: Daily iPhone chess programs releases Ingo Bauer Thu Aug 02, 2012 4:34 pm
                                                                                          Re: Daily iPhone chess programs releases Julien MARCEL Thu Aug 02, 2012 5:06 pm
                                                                                          Re: Daily iPhone chess programs releases Ingo Bauer Thu Aug 02, 2012 10:17 pm
                                                                  Re: Daily iPhone chess programs releases Juan Molina Wed Jul 25, 2012 8:52 pm
                                                                  Re: Daily iPhone chess programs releases O. Veli Thu Jul 26, 2012 1:23 pm
                                                                        Re: Daily iPhone chess programs releases Stefan Brettschneider Fri Jul 27, 2012 6:44 am
                                                                              Re: Daily iPhone chess programs releases Julien MARCEL Sun Jul 29, 2012 8:02 pm
                                                                                    Re: Daily iPhone chess programs releases Tom Giampietro Sun Jul 29, 2012 9:27 pm
      Re: Daily iPhone chess programs releases Julien MARCEL Sun Dec 30, 2012 12:52 am
            Re: Daily iPhone chess programs releases Julien MARCEL Mon Jan 21, 2013 8:36 pm
                  Re: Daily iPhone chess programs releases Ted Wong Tue Jan 22, 2013 3:12 am
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