spectro46

Many thanks for the advice. I had appreciated the importance of winning the opening lead with the A♣ but only after reading the Solution given. Short-sightedly I did not apply the logic to the importance of playing the A♦ before the other diamonds. Repeatably leaving the A♦ as the last diamond I played as South I could not cash the dummy diamonds, of course - with hindsight.

All my many attempts at winning the Bridge Master Level 1 A-30 Challenge have failed despite taking heed of the Solution given. Further hints on the strategy to take beyond the opening play would be much appreciated.