Maybe this should be Advance Plus Quiz. Diamonds were played a lot, but only once through dumb defense did it make 10 tricks. But we can do better… Best line wins…
Here are first four tricks… good luck
T1. ♣K ♣A ♣2 ♣5
T2. ♦2 ♦7 ♦K ♦A
T3. ♣3 ♣6 ♣Q ♣J
T4. ♦6 ♦Q S7 ♦3
This played may 10, 2004 on BBO
West North East South
- - Pass Pass
1♣ Dbl 1♠ 2♠*
DBL 3♦ Pass Pass
3♠ Pass Pass 4♦
Pass Pass Pass
*Ok, 2♠ is equality method showing generally balanced hand, with both red suits. You will have probably bid this differently.