[shogi-server] New pairing algorithm: ShogiServer::Pairing::LeastDiff

[shogi-server/shogi-server.git] / changelog

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@@ -1,3 +1,13 @@
+2013-03-20  Daigo Moriwaki <daigo at debian dot org>
+
+       * [shogi-server]
+         - New pairing algorithm: ShogiServer::Pairing::LeastDiff
+           This pairing algorithm aims to minimize the total differences of
+           matching players' rates. It also includes penalyties when a match
+           is same as the previous one or a match is between human players.
+           It is based on a discussion with Yamashita-san on
+           http://www.sgtpepper.net/kaneko/diary/20120511.html.
+
 2012-12-30  Daigo Moriwaki <daigo at debian dot org>
 
        * [shogi-server]