diff --git a/src/server/game/mod/order/OrderFunc.go b/src/server/game/mod/order/OrderFunc.go
index c1387ad8..9fdc7bd7 100644
--- a/src/server/game/mod/order/OrderFunc.go
+++ b/src/server/game/mod/order/OrderFunc.go
@@ -145,15 +145,46 @@ func getChessDiff(ChessNum, OrderDiff, OrderN int) map[int]int {
 func getChessLv(Min, Max, Diff int) int {
 	Start := Min
 	End := Max
-	switch Diff {
-	case DIFF_LOW:
-		End = Min + (Max-Min+1)/3 - 1
-	case DIFF_MID:
-		Start = Min + (Max-Min+1)/3
-		End = Min + (Max-Min+1)/3*2 - 1
-	case DIFF_HIGH:
-		Start = Min + (Max-Min+1)/3*2
+	if Max-Min >= 5 {
+		switch Diff {
+		case DIFF_LOW:
+			End = Min + (Max-Min+1)/3 - 1
+		case DIFF_MID:
+			Start = Min + (Max-Min+1)/3
+			End = Min + (Max-Min+1)/3*2 - 1
+		case DIFF_HIGH:
+			Start = Min + (Max-Min+1)/3*2
+		}
 	}
+	if Max-Min == 2 {
+		Start = Max - Diff + 1
+		End = Start
+	}
+	if Max-Min == 3 {
+		switch Diff {
+		case DIFF_LOW:
+			End = Min + 1
+		case DIFF_MID:
+			Start = Min + 2
+			End = Min + 2
+		case DIFF_HIGH:
+			Start = Min + 3
+			End = Min + 3
+		}
+	}
+	if Max-Min == 4 {
+		switch Diff {
+		case DIFF_LOW:
+			End = Min + 1
+		case DIFF_MID:
+			Start = Min + 2
+			End = Min + 3
+		case DIFF_HIGH:
+			Start = Min + 4
+			End = Min + 4
+		}
+	}
+
 	Start = max(Min, Start)
 	End = max(Start, End)
 	End = min(Max, End)