PUBLISHED RECREATIONS

1. Mathacrostics 1-100, in Points and Angles (doublecrostics on mathematical themes, one per issue in most issues from 1972 to 1990), the newsletter of the Metropolitan Mathematics Club of Chicago

2. Uncle Zal’s Mathacrostics. Palo Alto, CA: Dale Seymour Publications, 1984. (same as B9 above)

3. MMC Math Contests 1-24 (unique single-problem contest open to students, teachers, and interested others), in the December issues of Points and Angles, the newsletter of the Metropolitan Mathematics Club of Chicago, 1985-2008