diff --git a/41_Guess/ruby/guess.rb b/41_Guess/ruby/guess.rb
new file mode 100644
index 00000000..cf2deea2
--- /dev/null
+++ b/41_Guess/ruby/guess.rb
@@ -0,0 +1,48 @@
+def print_intro
+  print " " * 31 + "GUESS\n"
+  print " " * 15 + "CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY\n"
+  print "THIS IS A NUMBER GUESSING GAME. I'LL THINK\nOF A NUMBER BETWEEN 1 AND ANY LIMIT YOU WANT.\nTHEN YOU HAVE TO GUESS WHAT IT IS.\n"
+end
+
+def game_play(limit,choice_limit)
+    random = rand(limit.to_i)+1
+    puts "I'M THINKING OF A NUMBER BETWEEN 1 and #{limit}"
+    puts "NOW YOU TRY TO GUESS WHAT IT IS."
+    print "? "
+    ans=0
+    guesses=0
+    until ans.to_i == random.to_i
+      ans = gets.chomp
+      guesses += 1
+      if ans.to_i > random.to_i
+        puts "TOO HIGH. TRY A SMALLER ANSWER."
+        print "? "
+      elsif ans.to_i < random.to_i
+        puts "TOO LOW. TRY A BIGGER ANSWER."
+        print "? "
+      elsif ans.to_i == random.to_i
+        puts "THAT'S IT! YOU GOT IT IN #{guesses} TRIES."
+        if guesses.to_i < choice_limit.to_i
+          puts "VERY GOOD."
+        elsif guesses.to_i == choice_limit.to_i
+          puts "GOOD."
+        else
+          puts "YOU SHOULD HAVE BEEN ABLE TO GET IT IN ONLY #{choice_limit}"
+        end
+        print "\n\n\n\n\n"
+      end
+    end
+end
+
+
+def main
+  print_intro
+  puts "WHAT LIMIT DO YOU WANT"
+  limit = gets.chomp
+  choice_limit = (Math.log(limit.to_i)/Math.log(2)+1).to_i
+  while 1
+    game_play(limit,choice_limit)
+  end
+end
+
+main