I thought the "normal" re-opening bid for South was 3♠, but the description of that is "5+D; 4+H; 13+ total..." Ick.
The re-opening double shows biddable spades?
Re-opening 3♣ instead is explained as "4+C; 4+H; 11+ total points".
Re-opening 3♥ instead is explained as "6+H; 11-12 total points". Non-forcing.
What was South supposed to do in balancing seat?
It's my understanding that support doubles only apply when opp's overcall is below 2 of partner's suit, so this bid wasn't available to North over 2♠. Therefore, wouldn't he have the option of a penalty double? Is he not strong enough for that?

Help

