The Newhall Signal by George Koltanowski

   Chess, September 2, 1972 (Koltanowski Is Coming in Two Weeks, Problem 47)

   Chess, September 6, 1972 (The New World's Champion, Problem 48)

   Chess, September 13, 1972 (Koltanowski Is Coming On Friday!, Problem 50)

   Chess, September 15, 1972 (Koltanowski Appears Tonight!, Problem 51)