Removed spaces from top-level directory names.

Spaces tend to cause annoyances in a Unix-style shell environment.
This change fixes that.

61_Math_Dice/python/README.md

@@ -0,0 +1,3 @@
+Original source downloaded [from Vintage Basic](http://www.vintage-basic.net/games.html)
+
+Conversion to [Python](https://www.python.org/about/)

61_Math_Dice/python/mathdice.py

@@ -0,0 +1,79 @@
+from random import randint
+print("Math Dice")
+print("https://github.com/coding-horror/basic-computer-games")
+print()
+print("""This program generates images of two dice.
+When two dice and an equals sign followed by a question
+mark have been printed, type your answer, and hit the ENTER
+key.
+To conclude the program, type 0.
+""")
+
+def print_dice(n):
+    
+    def print_0():
+        print("|     |")
+    def print_2():
+        print("| * * |")
+
+    print(" ----- ")
+
+    if n in [4,5,6]:
+        print_2()
+    elif n in [2,3]:
+        print("| *   |")
+    else:
+        print_0()
+
+    if n in [1,3,5]:
+        print("|  *  |")
+    elif n in [2,4]:
+        print_0()
+    else:
+        print_2()
+
+    if n in [4,5,6]:
+        print_2()
+    elif n in [2,3]:
+        print("|   * |")
+    else:
+        print_0()
+
+    print(" ----- ")
+
+def main():
+
+    while True:
+        d1 = randint(1,6)
+        d2 = randint(1,6)
+        guess = 13
+
+        print_dice(d1)
+        print("   +")
+        print_dice(d2)
+        print("   =")
+
+        tries = 0
+        while guess != (d1 + d2) and tries < 2:
+            if tries == 1:
+                print("No, count the spots and give another answer.")
+            try:
+                guess = int(input())
+            except ValueError:
+                print("That's not a number!")
+            if guess == 0:
+                exit()
+            tries += 1
+
+        if guess != (d1 + d2):
+            print(f"No, the answer is {d1 + d2}!")
+        else:
+            print("Correct!")
+
+
+        print("The dice roll again....")
+
+
+
+if __name__ == "__main__":
+    main()