661_Pete, on 2016-September-26, 14:25, said:
I'm thinking 1♦ - 1♠ - 3♠ - 4♦(cue) - 4♥(cue) - 4♠ - 5♣(cue) - 5NT(GSF) - 7♠
The problem with this auction is that 3S isn't forcing for most pairs. You have a hand that only invited game going past game to make a control bid.
With a 5-loser hand (4.5 when adjusted for aces/queens), you want to be in game opposite a 1S response. (Point counters can count 5 for the void.) Assuming the opponents don't compete, the auction starts 1D-1S-4S. Note that East didn't start 2NT so East is likely (no guarantees here) to have an unbalanced hand with long diamonds and shortness somewhere - anywhere is good for West. Given that most East can have in spades and diamonds is the S-AQJ and the D-KJ, East needs at least 8 points in the other suits, counting at least 3 for a singleton. It's not that likely that East has an uncontrolled suit here so West can bid Old Black, knowing that East virtually has to have good diamonds. East admits to two aces and West figures that all four suits have second round control and bids 6S. Not ideal but a tie for top with 2 other pairs for a pair that has no methods is quite reasonable. If the pair can show 2 aces and a void over Blackwood, West can count five spades, at least five diamonds, the ace, and two ruffs to make 13 tricks. While it's possible to construct a hand that East could have that would jump to 4S without the SQ, it's not that likely, and 2-2 spades give you the grand. However, it sounds like bidding the small slam is sufficient in the field you played in and I might not want to gamble on the SQ. If only two pairs reached small slam, it's unlikely that any pairs can show the void and the SQ.
Let's say West decides to make a control bid of 5D instead of bidding Old Black. Hopefully East won't think West psyched 1S
, yes that did happen to me once.
Now, East bids 5H, and West bids 5S with no club control. East bids 6C - has to be a first round control else East would just bid 6S. Now it requires a little guesswork. I don't think West can bid seven yet (still that SQ issue and West doesn't know about the sixth diamond.) However, an expert West might bid 6D, and West can hardly do that without the SK and either the D-AQ or D-Ax and extras elsewhere, so East can take a pop at 7S. For pairs playing a style of control bidding where control bids don't promise first round controls, this is just about impossible.
I've bid this hand without splinters for a reason. If you play splinters, you probably have enough other agreements that you already know how your pair would reach a grand slam (or at least a slam.) Since I don't know what your agreements are, and it's different for each pair, it would be pompous of me to suggest an auction that uses a particular set of agreements and call it "standard". I've shown that pairs with no agreements should get to a small slam and if the pair guesses well (I'm not going to say "uses good judgment" because I think a couple of the calls are guesses), they could bid the grand. This is with no conventions other than simple Blackwood (to get to 6) or control bidding (to get to 6 and possibly 7 with inspired guessing.)
Now, it could start 1D (1H) 1S (4H). Since West could have a random 6-count, I think 4S is enough with East but East has shown extras. Unfortunately, East might have pushed to bid 4S under pressure, so West doesn't have a clue whether East has a maximum or not. However, it's pretty likely that East has at most one heart and no wasted high cards in hearts, so it's not unreasonable for West to bid 5D thinking that 5S probably isn't too likely to go down if partner has good spades and diamonds and some control in clubs. What can partner have that justifies bidding 4S over 4H? A minimum with a singleton heart isn't enough, regardless of that old saw "always bid 4S over 4H." East will bid 5H, West will bid 5S (no club control), East will bid 6C (has to be a first round control else East would just bid 6S), West probably will bid 6S but if West trots out 6D, East will probably bid the grand. Again, no methods.