How to Preempt in Third Seat
Preempting in the third seat after two passes is a tactical strike. You can relax the normal suit quality rules because partner has already passed, minimizing the risk of destroying a good hand.
A standard preemptive opening bid (like a Weak Two or a 3-level bid) strictly requires a "good" suit because you do not yet know if partner has a strong hand. However, if the auction begins with two passes, you are in the Third Seat. At this point, you know partner is weak. The only player who can hold a strong hand is your left-hand opponent (the fourth seat).
Therefore, third-seat preempts are entirely tactical. You can open a Weak Two or jump to the 3-level with a terrible suit just to steal the bidding space from the opponent who is waiting to strike.
Why third-seat preempts work
If you pass in the third seat with a 6-card suit and 5 points, the fourth seat will open the bidding, and their side will easily find their game.
By bidding 2♠ or 3♠ with a garbage suit, you force the fourth player to enter the auction at a dangerously high level. Because partner has already passed, you don't have to worry about preempting your own side out of a game.
A worked example: The tactical Weak Two
The Auction:
- West (LHO): Pass
- North (Partner): Pass
- East (You):
Your Hand:
♠ J 8 5 4 3 2
♥ 4 3
♦ K 9
♣ 8 5 2
(4 HCP, 6 Spades)
Caption: In first or second seat, this hand is far too weak and the Spade suit is far too poor (missing the A, K, Q, and 10) to open 2♠. But in third seat, you should absolutely open 2♠! You know South has a monster hand. Force South to start guessing at the 3-level.
Four common mistakes
- Partner (who originally passed) raising a third-seat preempt. (Partner must remember you might have a terrible suit! They should almost never raise).
- Passing in third seat with a 6-card suit because it "doesn't meet the rules" for a Weak Two.
- Using a third-seat preempt with a hand that actually qualifies for a normal 1-level opening.
- Preempting in fourth seat (never preempt in fourth seat; if you are weak, just pass and the board is thrown in!).
When the rule does not apply
If your side is Vulnerable and the opponents are Non-Vulnerable, you must exercise caution. A third-seat preempt with a truly awful suit might get doubled, handing the opponents 500 or 800 points when they could only make a partscore.
Key takeaways
- Third-seat preempts are designed to disrupt the fourth player.
- Suit quality requirements are vastly reduced.
- You can preempt lighter (fewer HCP) than in 1st or 2nd seat.
- Partner must exercise extreme caution and rarely raise.