Search found 469 matches

by rvida
Fri Feb 15, 2013 12:19 am
Forum: Computer Chess Club: General Topics
Topic: Legal Reverse engineering of software
Replies: 43
Views: 6684

Re: Legal Reverse engineering of software

I have been a bit fast when translating Charle's "reverse engineering" into "decompilation" (or disassembly), which are two different notions (although Charles' post focus on disassembly). For practical purposes it is pretty much unprovable which approach was used in the RE process. Same knowledge ...
by rvida
Fri Feb 15, 2013 12:07 am
Forum: Computer Chess Club: General Topics
Topic: Legal Reverse engineering of software
Replies: 43
Views: 6684

Re: Legal Reverse engineering of software

Many are using the term RE (reverse engineering) improperly, thus confusing the issues. Legal RE is a process not a task. If you cut the process short and stop with the task, it is illegal. There are two separate legality issues: 1) is it legal to perform the decompilation of the old program? 2) do...
by rvida
Sat Feb 02, 2013 5:33 pm
Forum: Computer Chess Club: General Topics
Topic: Robodini Q&A
Replies: 173
Views: 143495

Re: Robodini Q&A

But one thing on which I made up an opinion I am quite confident is that I'd would like to ask Richard to, now, remove the Robodini binary link because, given that is almost at the same strength of Houdini (although it is not SMP) it could affect Houdini sales and this, I believe, was not the inten...
by rvida
Fri Feb 01, 2013 8:40 pm
Forum: Computer Chess Club: General Topics
Topic: What should Robert do? (read post first before you vote)
Replies: 145
Views: 22944

Re: What should Robert do? (read post first before you vote)

You are right. I had in mind the example of a big commercial program making use of some GPL parts for small external functions (for example a video game making use of a GPLed compression library or codec). Then only this library or codec's source, and modifications, should be made available to anyo...
by rvida
Thu Jan 31, 2013 5:48 pm
Forum: Computer Chess Club: General Topics
Topic: Locked position. And eval motors.
Replies: 4
Views: 902

Re: Locked position and evals of engines.

I used Critter 1.4 w32 for analyzing the two positions you posted. Analysis by Critter 1.4 w32 (using three cores) in an Intel i5-760 (2.8 GHz), with 1 GB of hash, running in console mode: ... The eval of +1.75 does not change since low depths. Instead of Critter 1.4 you should have try 1.4a or 1.6...
by rvida
Thu Jan 31, 2013 5:15 pm
Forum: Computer Chess Club: General Topics
Topic: Robodini Q&A
Replies: 173
Views: 143495

Re: Robodini Q&A

Q: Are you willing to publish source code? A: No. Despite R1.1 being a H3 clone, it contains a lot of boilerplate code that is (c) by me. I hate the Robbodini coding style - I had to replace it with something more readable/maintainable while preserving its functionality. Richard, how hard is this p...
by rvida
Wed Jan 30, 2013 12:27 pm
Forum: Computer Chess Club: General Topics
Topic: Robodini Q&A
Replies: 173
Views: 143495

Re: Robodini Q&A

Oddly you failed to mention in your Q&A that for over 18 months you've had access to the RE Houdini 1.5 sources provided by Jury Osipov, and that this most certainly is 100 times more relevant for RE'ing Houdini 3 than your quoting some unknown Robbolito sources... You were misinformed (if not outr...
by rvida
Wed Jan 30, 2013 1:32 am
Forum: Computer Chess Club: General Topics
Topic: Robodini Q&A
Replies: 173
Views: 143495

Re: Robodini Q&A

You found Bugs in Houdini 3 ? Does it affect in analysis ? One of the bugs was already discussed here - the one which caused 32bit version to produce different analysis than the 64bit one. H3 modifies the value of a knight depending on "pawn spread" (the file distance between leftmost and rightmost...
by rvida
Wed Jan 30, 2013 12:41 am
Forum: Computer Chess Club: General Topics
Topic: Robodini
Replies: 66
Views: 26660

Re: Robodini

(my guess for biggest improvement: space eval...missing entirely in Ippolit source code, just see Stockfish for a good one) Bingo! Well, to be honest, I don't believe it is the biggest improvement (except for Chess960)... Just that it is in there. And it is computed exactly the same way as in Stock...
by rvida
Tue Jan 29, 2013 11:37 pm
Forum: Computer Chess Club: General Topics
Topic: Robodini Q&A
Replies: 173
Views: 143495

Robodini Q&A

Please accept my apologies for the confusion I unwillingly created. This unfortunate Robodini thing got way more attention than it really deserves. I got a lot of questions regarding this by emails/pms/whatnot, so I decided to answer them all in a single forum post in the form of a FAQ document. Q: ...