Hi, an interesting new feature of wine 1.2 is it's 64-bit support. Many Windows chess engines gain about 50-80% speed increase when running at 64-bit. Most provide 32-bit and 64-bit engines. But on my 64-bit Ubuntu 10.04 only an error message appears i.e. with the free Stockfish 1.8. Code: max@ub64:~/Downloads$ uname -a Linux ub64 2.6.32-24-generic #38-Ubuntu SMP Mon Jul 5 09:20:59 UTC 2010 x86_64 GNU/Linux max@ub64:~/Downloads$ wine --version wine-1.2 max@ub64:~/Downloads$ ll st* -rw-r--r-- 1 max max 357888 2010-07-02 12:22 stockfish-18-64-ja.exe -rw-r--r-- 1 max max 919965 2010-08-03 18:14 stockfish-18-win.zip max@ub64:~/Downloads$ wine ./stockfish-18-64-ja.exe Trying to load PE image for unsupported architecture (AMD-64) err:process:create_process starting 64-bit process L"Z:\\home\\max\\Downloads\\stockfish-18-64-ja.exe" not supported on this environment wine: Fehlerhaftes EXE-Format fýr Z:\home\max\Downloads\stockfish-18-64-ja.exe I tested the 64-bit versions of these free chess engines Hannibal 1.0a: http://sites.google.com/site/edapostol/hannibal Houdini 1.03a Single core: http://www.cruxis.com/chess/houdini.htm Stockfish 1.8 for Windows: http://www.stockfishchess.com/download/ Rybka 2.3.2a: http://www.rybkachess.com/free/Rybka232a.zip in console mode .. but had no success and got same error. Any idea what is wrong with my system [Question] Are there some additional settings to apply? And was somebody lucky running a 64-bit windows chess engine with wine 1.2? -Max
