-1. Introduction\r
----------------\r
-\r
-Stockfish is a free UCI chess engine derived from Glaurung 2.1. It is\r
-not a complete chess program, but requires some UCI compatible GUI\r
-(like XBoard with PolyGlot, eboard, Jos�, Arena, Sigma Chess, Shredder,\r
-Chess Partner, or Fritz) in order to be used comfortably. Read the\r
-documentation for your GUI of choice for information about how to use\r
-Stockfish with your GUI.\r
-\r
-This version of Stockfish supports up to 8 CPUs, but has not been\r
-tested thoroughly with more than 2. The program tries to detect the\r
-number of CPUs on your computer and set the number of search threads\r
-accordingly, but please be aware that the detection is not always\r
-correct. It is therefore recommended to inspect the value of the\r
-"Threads" UCI parameter, and to make sure it equals the number of CPU\r
-cores on your computer.\r
-\r
-\r
-2. Files\r
---------\r
-\r
-This distribution of Stockfish consists of the following files:\r
-\r
- * Readme.txt, the file you are currently reading.\r
-\r
- * Copying.txt, a text file containing the GNU General Public\r
- License.\r
-\r
- * src/, a subdirectory containing the full source code, including a\r
- Makefile that can be used to compile Stockfish on Unix-like\r
- systems. For further information about how to compile Stockfish\r
- yourself, read section 4 below.\r
-\r
- * polyglot.ini, for using Stockfish with Fabien Letouzey's PolyGlot\r
- adapter.\r
-\r
-\r
-3. Opening books\r
-----------------\r
-\r
-This version of Stockfish has experimental support for PolyGlot opening\r
-books. For information about how to create such books, consult the\r
-PolyGlot documentation. The book file can be selected by setting the\r
-UCI parameter "Book File".\r
-\r
-\r
-4. Compiling it yourself\r
-------------------------\r
-\r
-On Unix-like systems, it should usually be possible to compile\r
-Stockfish directly from the source code with the included Makefile.\r
-The exception is computer with big-endian CPUs, like PowerPC\r
-Macintoshes. Some of the bitboard routines in the current version of\r
-Stockfish are endianness-sensitive, and won't work on a big-endian CPU.\r
-\r
-Stockfish has POPCNT instruction runtime detection and support. This can\r
-give an extra speed on Core i7 or similar systems. To enable this feature\r
-(disabled by default) simply uncomment #define USE_POPCNT in bitcount.h\r
-before to compile.\r
-\r
-On 64 bit Unix-like systems the 'bsfq' assembly instruction will be used\r
-for bit counting. Detection is automatic at compile time, but in case you\r
-experience compile problems you can comment out #define USE_BSFQ line in types.h\r
-\r
-\r
-5. Terms of use\r
----------------\r
-\r
-Stockfish is free, and distributed under the GNU General Public License\r
-(GPL). Essentially, this means that you are free to do almost exactly\r
-what you want with the program, including distributing it among your\r
-friends, making it available for download from your web site, selling\r
-it (either by itself or as part of some bigger software package), or\r
-using it as the starting point for a software project of your own.\r
-\r
-The only real limitation is that whenever you distribute Stockfish in\r
-some way, you must always include the full source code, or a pointer\r
-to where the source code can be found. If you make any changes to the\r
-source code, these changes must also be made available under the GPL.\r
-\r
-For full details, read the copy of the GPL found in the file named\r
-Copying.txt.\r
-\r
-\r
-6. Feedback\r
------------\r
-\r
-The author's e-mail address is mcostalba@gmail.com\r
+1. Introduction
+---------------
+
+Stockfish is a free UCI chess engine derived from Glaurung 2.1. It is
+not a complete chess program, but requires some UCI compatible GUI
+(like XBoard with PolyGlot, eboard, Josè, Arena, Sigma Chess, Shredder,
+Chess Partner, or Fritz) in order to be used comfortably. Read the
+documentation for your GUI of choice for information about how to use
+Stockfish with your GUI.
+
+This version of Stockfish supports up to 16 CPUs, but has not been
+tested thoroughly with more than 4. The program tries to detect the
+number of CPUs on your computer and set the number of search threads
+accordingly, but please be aware that the detection is not always
+correct. It is therefore recommended to inspect the value of the
+"Threads" UCI parameter, and to make sure it equals the number of CPU
+cores on your computer. If you are using more than four threads, it
+is recommended to raise the value of "Minimum Split Depth" UCI parameter
+to 6.
+
+
+2. Files
+--------
+
+This distribution of Stockfish consists of the following files:
+
+ * Readme.txt, the file you are currently reading.
+
+ * Copying.txt, a text file containing the GNU General Public
+ License.
+
+ * src/, a subdirectory containing the full source code, including a
+ Makefile that can be used to compile Stockfish on Unix-like
+ systems. For further information about how to compile Stockfish
+ yourself, read section 4 below.
+
+ * polyglot.ini, for using Stockfish with Fabien Letouzey's PolyGlot
+ adapter.
+
+
+3. Opening books
+----------------
+
+This version of Stockfish has support for PolyGlot opening books.
+For information about how to create such books, consult the PolyGlot
+documentation. The book file can be selected by setting the UCI
+parameter "Book File".
+
+
+4. Compiling it yourself
+------------------------
+
+On Unix-like systems, it should usually be possible to compile
+Stockfish directly from the source code with the included Makefile.
+
+For big-endian machines like Power PC you need to enable the proper
+flag changing from -DNBIGENDIAN to -DBIGENDIAN in the Makefile.
+
+Stockfish has POPCNT instruction runtime detection and support. This can
+give an extra speed on Core i7 or similar systems. To enable this feature
+compile with 'make icc-profile-popcnt'
+
+On 64 bit Unix-like systems the 'bsfq' assembly instruction will be used
+for bit counting. Detection is automatic at compile time, but in case you
+experience compile problems you can comment out #define USE_BSFQ line in types.h
+
+In general is recommended to run 'make help' to see a list of make targets
+with corresponding descriptions.
+
+
+5. Terms of use
+---------------
+
+Stockfish is free, and distributed under the GNU General Public License
+(GPL). Essentially, this means that you are free to do almost exactly
+what you want with the program, including distributing it among your
+friends, making it available for download from your web site, selling
+it (either by itself or as part of some bigger software package), or
+using it as the starting point for a software project of your own.
+
+The only real limitation is that whenever you distribute Stockfish in
+some way, you must always include the full source code, or a pointer
+to where the source code can be found. If you make any changes to the
+source code, these changes must also be made available under the GPL.
+
+For full details, read the copy of the GPL found in the file named
+Copying.txt.
+
projects / stockfish / blobdiff