Strong Overcall
Overcalling with a suit, requirements:
Overcalling with one no-trump, requirements:
Aggressive Weak Overcall
Skipping one or more levels, requirements:
Note:All levels require three honors in the overcalling suit, or two of the top three honors.
Level 2 (e.g. - two hearts over 1 diamond) indicates six cards in your suit and 4-9 HCP. (Note: this is essentially a weak two bid but is an overcall.)
Level 3 (e.g. - three diamonds over 1 spade): indicates 7+ cards in your suit and 3+ HCP. (Note: this is essentially a weak three bid but is an overcall.)
Level 4 (e.g. - four diamonds over 1 spade): indicates 7+ cards, 11 or fewer HCP, and 3+ HCP.
Level 5 (e.g. - five diamonds over 1 spade): indicates 8+ cards in your suit and 3-20 HCP. This is a preemptive bid.
Unusual No-Trump Overcall (convention) (forcing for one round) (a possible path to game)
Indicates: