diff --git a/mastermind colors.py b/mastermind colors.py
index 2682c1b..46dd60c 100644
--- a/mastermind colors.py	
+++ b/mastermind colors.py	
@@ -2,63 +2,73 @@
 
 import random
 
-print (" --- MASTERMIND --- \n")
-print ("Guess the secret color code in as few tries as possible.\n")
-print ("Please, enter your color code.\nYou can use red(R), green(G), blue(B), yellow(Y), white(W) and pink(P)")
+print(" --- MASTERMIND --- \n")
+print("Guess the secret color code in as few tries as possible.\n")
+print("Please, enter your color code.\nYou can use red(R), green(G), blue(B), yellow(Y), white(W) and pink(P)")
 
 colors = ["R", "G", "B", "Y", "W", "P"]
 attempts = 0
 game = True
 
 # computer randomly picks four-color code
-color_code = random.sample(colors,4)	
-print (color_code)
+#color_code = random.sample(colors, 4)
+color_code  = "BGRY"
+print(color_code)
 
-# player guesses the number	
+# player guesses the number
 while game:
-	correct_color = ""
-	guessed_color = ""
-	player_guess = input().upper()
-	attempts += 1
-	
-	# checking if player's input is correct
-	if len(player_guess) != len(color_code):
-		print ("\nThe secret code has exactly four colors. I know, you can count to four. Try again!")
-		continue
-	for i in range(4):
-		if player_guess[i] not in colors:
-			print ("\nLook up what colors you can use in this game. You are not a daltonist, are you?")
-			continue
-			
-	# comparison between player's input and secret code
-	if correct_color != "XXXX":
-		for i in range(4):
-			if player_guess[i] == color_code[i]:
-				correct_color += "X"
-			if  player_guess[i] != color_code[i] and player_guess[i] in color_code:
-				guessed_color += "O"
-		print (correct_color +  guessed_color + "\n")		
-		
-	if correct_color == "XXXX":
-		if attempts == 1:
-			print ("Wow! You guessed at the first attempt!")
-		else:
-			print ("Well done... You needed " + str(attempts) + " attempts to guess.")
-		game = False
-		
-	if attempts >= 1 and attempts <6 and correct_color != "XXXX":
-		print ("Next attempt: ")
-	elif attempts >= 6:
-		print ("You didn't guess! The secret color code was: " + str(color_code))	
+    correct_color = ""
+    guessed_color = ""
+    mem_color = ""
+    player_guess = input().upper()
+    attempts += 1
 
-	# play or not to play
-	while game == False:
-		finish_game = input("\nDo you want to play again (Y/N)?").upper()	
-		attempts = 0
-		if finish_game =="N":
-			print ("Thanks for the game! Bye, bye!")
-		elif finish_game == "Y":
-			game = True
-			print ("So, let's play again... Guess the secret code: ")
+    # checking if player's input is correct
+    if len(player_guess) != len(color_code):
+        print("\nThe secret code has exactly four colors. I know, you can count to four. Try again!")
+        continue
+    for i in range(4):
+        if player_guess[i] not in colors:
+            print("\nLook up what colors you can use in this game. You are not a daltonist, are you?")
+            continue
 
-# --- end --- #			
\ No newline at end of file
+
+    # comparison between player's input and secret code
+    if correct_color != "XXXX":
+        for i in range(4):
+            if player_guess[i] == color_code[i]:
+                correct_color += "X"
+                if player_guess[i] not in mem_color:
+                    mem_color += player_guess[i]
+                elif player_guess[i] in mem_color:
+                    guessed_color = guessed_color[:-1]
+            if player_guess[i] != color_code[i] and player_guess[i] in color_code and player_guess[i] not in mem_color:
+                guessed_color += "O"
+                if player_guess[i] not in mem_color:
+                    mem_color += player_guess[i]
+        print(correct_color + guessed_color + "\n")
+
+
+    if correct_color == "XXXX":
+        if attempts == 1:
+            print("Wow! You guessed at the first attempt!")
+        else:
+            print("Well done... You needed " + str(attempts) + " attempts to guess.")
+        game = False
+
+    if attempts >= 1 and attempts < 6 and correct_color != "XXXX":
+        print("Next attempt: ")
+    elif attempts >= 6:
+        print("You didn't guess! The secret color code was: " + str(color_code))
+        game = False
+    # play or not to play
+    while game == False:
+        finish_game = input("\nDo you want to play again (Y/N)?").upper()
+        attempts = 0
+        if finish_game == "N":
+            print("Thanks for the game! Bye, bye!")
+        elif finish_game == "Y":
+            game = True
+            print("So, let's play again... Guess the secret code: ")
+
+            # --- end --- #