lbellicaud

I agree with every bid, except the last double. When the partner says 2 heart, he has at least 6 cards and a pretty good hand. Moreover you know that he his single in diamond. At this point you have 9 tricks in your hand, so you need almost nothing to do 4 !h . Instead of doubling, i would have bid 4 heart, or at least 3...

That's right

3 round of trump, then KQ of club while discarding one diamond, and then A of diamond and queen, 100% contract

in standard 3♦ is an underbid You are supposed to be game forcing with this hand. and 3♦ is not forcing at all. I bid 3♣

1. 4♠ 2. 4♠ 3. - 4. X 5. X 6. X 7. 5♦ 8. X 9. 4♠ 10. - 11. 5♦ 12. 4♠ 13. - 14. - 15. 4♠ 16. X 17. - 18. - 19. 5♣ 20. - 21. X 22. 4♠ 23. X