diff --git a/che_close/func.php b/che_close/func.php
index 96aeb76..b61a88e 100644
--- a/che_close/func.php
+++ b/che_close/func.php
@@ -12,6 +12,32 @@ function randF(){
     return mt_rand() / mt_getrandmax();
 }
 
+/**
+ * 각 값의 비중에 따라 랜덤한 값을 선택
+ * 
+ * @param array 각 수치의 비중
+ * 
+ * @return object 선택된 랜덤 값의 key값. 단순 배열인 경우에는 index
+ */
+function ChooseRandomItem($items){
+    $sum = 0;
+    foreach($items as $value){
+        $sum += $value;
+    }
+
+    $rd = randF()*$sum;
+    foreach($items as $key=>$value){
+        if($rd <= $value){
+            return $key;
+        }
+        $rd -= $value;
+    }
+
+    //fallback. 이곳으로 빠지지 않음
+    end($items);
+    return key($items);
+}
+
 // 37.5 ~ 75
 function abilityRand() {
     $total  = 150;
diff --git a/che_close/func_process.php b/che_close/func_process.php
index f152862..b751b86 100644
--- a/che_close/func_process.php
+++ b/che_close/func_process.php
@@ -805,7 +805,7 @@ function process_9($connect, &$general) {
             MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
         }
 
-        switch(rand()%3) {
+        switch(ChooseRandomItem(array($general['leader'], $general['power'], $general['intel']))) {
             case 0:
                 $general[leader2]++;
                 $query = "update general set resturn='SUCCESS',leader2='$general[leader2]',dedication=dedication+'$ded',experience=experience+'$exp' where no='$general[no]'";
@@ -1981,7 +1981,7 @@ function process_29($connect, &$general) {
         if(rand() % $criteria > 0) {
             $exp = 100;
             $ded = 70;
-            switch(rand()%3) {
+            switch(ChooseRandomItem(array($general['leader'], $general['power'], $general['intel']))) {
             case 0: $general[leader2] += 1; break;
             case 1: $general[power2] += 1; break;
             case 2: $general[intel2] += 1; break;
@@ -1991,7 +1991,7 @@ function process_29($connect, &$general) {
             // 탐색 성공
             $exp = 200;
             $ded = 300;
-            switch(rand()%3) {
+            switch(ChooseRandomItem(array($general['leader'], $general['power'], $general['intel']))) {
             case 0: $general[leader2] += 3; break;
             case 1: $general[power2] += 3; break;
             case 2: $general[intel2] += 3; break;
@@ -3934,7 +3934,7 @@ function process_49($connect, &$general) {
         MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
 
         // 경험치 상승
-        switch(rand()%3) {
+        switch(ChooseRandomItem(array($general['leader'], $general['power'], $general['intel']))) {
         case 0:
             $general[leader2]++;
             $query = "update general set leader2='$general[leader2]' where no='$general[no]'";