--- a/gameServer/CoreTypes.hs	Tue Mar 31 23:01:53 2015 +0300
+++ b/gameServer/CoreTypes.hs	Tue Mar 31 23:14:09 2015 +0300
@@ -226,6 +226,7 @@
         isRegisteredOnly :: Bool,
         isSpecial :: Bool,
         defaultHedgehogsNumber :: Int,
+        teamsNumberLimit :: Int,
         greeting :: B.ByteString,
         voting :: Maybe Voting,
         roomBansList :: ![B.ByteString],
@@ -250,6 +251,7 @@
         False
         False
         4
+        8
         ""
         Nothing
         []

--- a/gameServer/HWProtoCore.hs	Tue Mar 31 23:01:53 2015 +0300
+++ b/gameServer/HWProtoCore.hs	Tue Mar 31 23:14:09 2015 +0300
@@ -71,12 +71,14 @@
         h "WATCH" f = return [QueryReplay f]
         h "FIX" _ = handleCmd ["FIX"]
         h "UNFIX" _ = handleCmd ["UNFIX"]
-        h "GREETING" msg = handleCmd ["GREETING", msg]
+        h "GREETING" msg | not $ B.null msg = handleCmd ["GREETING", msg]
         h "CALLVOTE" msg | B.null msg = handleCmd ["CALLVOTE"]
                          | otherwise = let (c, p) = extractParameters msg in
                                            if B.null p then handleCmd ["CALLVOTE", c] else handleCmd ["CALLVOTE", c, p]
-        h "VOTE" msg = handleCmd ["VOTE", upperCase msg]
-        h "FORCE" msg = handleCmd ["VOTE", upperCase msg, "FORCE"]
+        h "VOTE" msg | not $ B.null msg = handleCmd ["VOTE", upperCase msg]
+        h "FORCE" msg | not $ B.null msg = handleCmd ["VOTE", upperCase msg, "FORCE"]
+        h "MAXTEAMS" n | not $ B.null n = handleCmd ["MAXTEAMS", n]
+        h "INFO" n | not $ B.null n = handleCmd ["INFO", n]
         h c p = return [Warning $ B.concat ["Unknown cmd: /", c, " ", p]]
 
         extractParameters p = let (a, b) = B.break (== ' ') p in (upperCase a, B.dropWhile (== ' ') b)

--- a/gameServer/HWProtoInRoomState.hs	Tue Mar 31 23:01:53 2015 +0300
+++ b/gameServer/HWProtoInRoomState.hs	Tue Mar 31 23:14:09 2015 +0300
@@ -125,7 +125,7 @@
                     defaultHedgehogsNumber rm
         let newTeam = clNick `seq` TeamInfo clNick tName teamColor grave fort voicepack flag isRegistered dif hhNum (hhsList hhsInfo)
         return $
-            if not . null . drop (maxTeams rm - 1) $ roomTeams then
+            if not . null . drop (teamsNumberLimit rm) $ roomTeams then
                 [Warning $ loc "too many teams"]
             else if canAddNumber roomTeams <= 0 then
                 [Warning $ loc "too many hedgehogs"]
@@ -389,6 +389,15 @@
     s <- roomClientsChans
     return [AnswerClients s ["CHAT", n, B.unwords $ "/rnd" : rs], Random s rs]
 
+
+handleCmd_inRoom ["MAXTEAMS", n] = roomAdminOnly $ do
+    cl <- thisClient
+    let m = readInt_ n
+    if m < 2 || m > 8 then
+        return [AnswerClients [sendChan cl] ["CHAT", "[server]", loc "/maxteams: specify number from 2 to 8"]]
+    else
+        return [ModifyRoom (\r -> r{teamsNumberLimit = m})]
+
 handleCmd_inRoom ["FIX"] = serverAdminOnly $
     return [ModifyRoom (\r -> r{isSpecial = True})]