diff --git a/main.lua b/main.lua
index c227d81e..c3f6f528 100644
--- a/main.lua
+++ b/main.lua
@@ -289,6 +289,18 @@ do
 		if RANKS.tsd_u then RANKS.tsd_u=0 end
 		needSave=true
 	end
+	if STAT.version==1601 then
+		RANKS.round_e=nil
+		RANKS.round_n=nil
+		RANKS.round_h=nil
+		RANKS.round_l=nil
+		RANKS.round_u=nil
+		fs.remove('record/round_e.rec')
+		fs.remove('record/round_n.rec')
+		fs.remove('record/round_h.rec')
+		fs.remove('record/round_l.rec')
+		fs.remove('record/round_u.rec')
+	end
 	if RANKS.stack_20l then
 		RANKS.stack_20l=nil
 		RANKS.stack_40l=nil
diff --git a/parts/modes/round_e.lua b/parts/modes/round_e.lua
index 1dcb44f3..04cb5fe6 100644
--- a/parts/modes/round_e.lua
+++ b/parts/modes/round_e.lua
@@ -1,5 +1,5 @@
 local function update_round(P)
-	if #PLY_ALIVE>1 then
+	if P.stat.piece%7==0 and #PLY_ALIVE>1 then
 		P.control=false
 		local ID=P.id
 		repeat
@@ -13,6 +13,7 @@ end
 return{
 	color=COLOR.cyan,
 	env={
+		life=1,
 		drop=300,lock=300,
 		infHold=true,
 		dropPiece=update_round,
@@ -22,7 +23,7 @@ return{
 	},
 	load=function()
 		PLY.newPlayer(1)
-		PLY.newAIPlayer(2,AIBUILDER('CC',7,1,true,10000))
+		PLY.newAIPlayer(2,AIBUILDER('CC',8,1,true,8000))
 	end,
 	score=function(P)return{P.stat.piece,P.stat.time}end,
 	scoreDisp=function(D)return D[1].." Pieces   "..STRING.time(D[2])end,
@@ -31,10 +32,10 @@ return{
 		if P.result=='win'then
 			local T=P.stat.piece
 			return
-			T<=23 and 5 or
-			T<=26 and 4 or
-			T<=40 and 3 or
-			T<=60 and 2 or
+			T<=7*8 and 5 or
+			T<=7*10 and 4 or
+			T<=7*15 and 3 or
+			T<=7*26 and 2 or
 			1
 		end
 	end,
diff --git a/parts/modes/round_h.lua b/parts/modes/round_h.lua
index fbeed6f9..5a142a01 100644
--- a/parts/modes/round_h.lua
+++ b/parts/modes/round_h.lua
@@ -1,5 +1,5 @@
 local function update_round(P)
-	if #PLY_ALIVE>1 then
+	if P.stat.piece%7==0 and #PLY_ALIVE>1 then
 		P.control=false
 		local ID=P.id
 		repeat
@@ -13,6 +13,7 @@ end
 return{
 	color=COLOR.magenta,
 	env={
+		life=1,
 		drop=300,lock=300,
 		infHold=true,
 		dropPiece=update_round,
@@ -22,7 +23,7 @@ return{
 	},
 	load=function()
 		PLY.newPlayer(1)
-		PLY.newAIPlayer(2,AIBUILDER('CC',7,2,true,16000))
+		PLY.newAIPlayer(2,AIBUILDER('CC',8,2,true,16000))
 	end,
 	score=function(P)return{P.stat.piece,P.stat.time}end,
 	scoreDisp=function(D)return D[1].." Pieces   "..STRING.time(D[2])end,
@@ -31,10 +32,10 @@ return{
 		if P.result=='win'then
 			local T=P.stat.piece
 			return
-			T<=30 and 5 or
-			T<=40 and 4 or
-			T<=55 and 3 or
-			T<=75 and 2 or
+			T<=7*8 and 5 or
+			T<=7*10 and 4 or
+			T<=7*15 and 3 or
+			T<=7*26 and 2 or
 			1
 		end
 	end,
diff --git a/parts/modes/round_l.lua b/parts/modes/round_l.lua
index 4068013f..08542fd7 100644
--- a/parts/modes/round_l.lua
+++ b/parts/modes/round_l.lua
@@ -1,5 +1,5 @@
 local function update_round(P)
-	if #PLY_ALIVE>1 then
+	if P.stat.piece%7==0 and #PLY_ALIVE>1 then
 		P.control=false
 		local ID=P.id
 		repeat
@@ -13,6 +13,7 @@ end
 return{
 	color=COLOR.red,
 	env={
+		life=1,
 		drop=300,lock=300,
 		infHold=true,
 		dropPiece=update_round,
@@ -22,7 +23,7 @@ return{
 	},
 	load=function()
 		PLY.newPlayer(1)
-		PLY.newAIPlayer(2,AIBUILDER('CC',7,3,true,26000))
+		PLY.newAIPlayer(2,AIBUILDER('CC',8,3,true,26000))
 	end,
 	score=function(P)return{P.stat.piece,P.stat.time}end,
 	scoreDisp=function(D)return D[1].." Pieces   "..STRING.time(D[2])end,
@@ -31,10 +32,10 @@ return{
 		if P.result=='win'then
 			local T=P.stat.piece
 			return
-			T<=30 and 5 or
-			T<=40 and 4 or
-			T<=55 and 3 or
-			T<=75 and 2 or
+			T<=7*8 and 5 or
+			T<=7*10 and 4 or
+			T<=7*15 and 3 or
+			T<=7*26 and 2 or
 			1
 		end
 	end,
diff --git a/parts/modes/round_n.lua b/parts/modes/round_n.lua
index 952ae0c1..9250898f 100644
--- a/parts/modes/round_n.lua
+++ b/parts/modes/round_n.lua
@@ -1,5 +1,5 @@
 local function update_round(P)
-	if #PLY_ALIVE>1 then
+	if P.stat.piece%7==0 and #PLY_ALIVE>1 then
 		P.control=false
 		local ID=P.id
 		repeat
@@ -13,6 +13,7 @@ end
 return{
 	color=COLOR.green,
 	env={
+		life=1,
 		drop=300,lock=300,
 		infHold=true,
 		dropPiece=update_round,
@@ -22,7 +23,7 @@ return{
 	},
 	load=function()
 		PLY.newPlayer(1)
-		PLY.newAIPlayer(2,AIBUILDER('CC',7,1,true,13000))
+		PLY.newAIPlayer(2,AIBUILDER('CC',8,1,true,13000))
 	end,
 	score=function(P)return{P.stat.piece,P.stat.time}end,
 	scoreDisp=function(D)return D[1].." Pieces   "..STRING.time(D[2])end,
@@ -31,10 +32,10 @@ return{
 		if P.result=='win'then
 			local T=P.stat.piece
 			return
-			T<=23 and 5 or
-			T<=26 and 4 or
-			T<=40 and 3 or
-			T<=60 and 2 or
+			T<=7*8 and 5 or
+			T<=7*10 and 4 or
+			T<=7*15 and 3 or
+			T<=7*26 and 2 or
 			1
 		end
 	end,
diff --git a/parts/modes/round_u.lua b/parts/modes/round_u.lua
index b2f8643b..f3d33960 100644
--- a/parts/modes/round_u.lua
+++ b/parts/modes/round_u.lua
@@ -1,5 +1,5 @@
 local function update_round(P)
-	if #PLY_ALIVE>1 then
+	if P.stat.piece%7==0 and #PLY_ALIVE>1 then
 		P.control=false
 		local ID=P.id
 		repeat
@@ -13,6 +13,7 @@ end
 return{
 	color=COLOR.lYellow,
 	env={
+		life=1,
 		drop=300,lock=300,
 		infHold=true,
 		dropPiece=update_round,
@@ -22,7 +23,7 @@ return{
 	},
 	load=function()
 		PLY.newPlayer(1)
-		PLY.newAIPlayer(2,AIBUILDER('CC',7,3,true,40000))
+		PLY.newAIPlayer(2,AIBUILDER('CC',8,4,true,40000))
 	end,
 	score=function(P)return{P.stat.piece,P.stat.time}end,
 	scoreDisp=function(D)return D[1].." Pieces   "..STRING.time(D[2])end,
@@ -31,10 +32,10 @@ return{
 		if P.result=='win'then
 			local T=P.stat.piece
 			return
-			T<=30 and 5 or
-			T<=40 and 4 or
-			T<=55 and 3 or
-			T<=75 and 2 or
+			T<=7*8 and 5 or
+			T<=7*10 and 4 or
+			T<=7*15 and 3 or
+			T<=7*26 and 2 or
 			1
 		end
 	end,