The National Jockey Club Handicap (gr. III) was a puzzle just waiting to be assembled by Guided Tour at Sportsman's Park on April 22. The out-of-town star was supposed to ship in, overcome the challenge of invading speedster Duckhorn, add another $120,000 to his earnings, and leave everybody else in the field of five to cash their checks. Puzzle solved. All the pieces were in place -- until a stout-hearted Illinois-bred named Chicago Six scattered the preordained solution all over the drying-out racetrack.