If the betting comes to you in poker, then you should bet or raise provided your hand is in the top 50% of all hands. However, another player interferes and raises £100 into a £100 pot before it is your turn. Clearly you must reassess your action and take note that you are getting 2/1 odds. Thus you should pass unless your hand is in the top 33%. Sklansky calls the gap between 33% and 50% the gap concept.
Then you should reraise if your hand figure to in the top 50% of all hands you don’t pass. Thus you raise if your hand is in the top 16%. The gap between 16% and 50% I refer to as the extended gap concept. I would have preferred to use the term ratchet principle, but Sklansky got there first. This applies to all poker games, but what such percentages mean is partly up to you.
