Intermediate Jump Overcall

The intermediate jump overcall is based on the notion that weak jump overcalls are inefficient and often only help the opponents determine the distribution and location of the defense's cards. Hence the intermediate jump overcall, which shows 11-15 points and a good six-card suit.

With KQJ632 A2 Q87 32. Bid 2 over 1/1/1.

With 1098632 AK QJ32 3. Overcall only 1 with the bad suit

With KQJ63 AK 532 987. Again, overcall only 1 with the five-card suit.

A 2NT response to an IJO is invitational, as is a simple raise.