Read the Blockers table
Measure how one removed card changes a player's action frequencies, with strategy held fixed.
The Blockers table isolates a single-card removal effect. It asks how the acting player's action frequencies change if the opponent holds one particular card. It does not re-solve the strategy or directly recommend an action for your complete hand.
Open the decision whose range you want to test
Select a postflop decision in the action line, then open Blockers in the hand-details panel, beside Hands, Summary, and Filters.
Check the acting player. The table describes that player's range and actions, conditional on a card being held by the opponent. If you want to study which cards affect an opponent's folding frequency, open the opponent's response decision first.
This analysis needs a decision strategy and complete combination weights. It is unavailable preflop and at nodes without the required data.
Read changes in percentage points
Each row is a card. The action columns show the change in frequency after combinations containing that card are removed from the acting player's range. The remaining range is reweighted while the underlying strategies stay fixed.
A positive value means that action becomes more frequent in the remaining range; a negative value means it becomes less frequent. Green and red indicate the direction of the change, not whether the card is good or bad for your hand.
For example, if a fold frequency changes from 40% to 43%, the effect is +3 percentage points, not a 3% relative increase. The row's explanation includes the before/after frequencies.
Sort using the card or action column headings. A value that cannot be calculated—such as removal leaving no combinations—is not a zero effect.
Investigate a bluff candidate
- Navigate to your betting decision and choose a bet size in the action line.
- Open the opponent's response node.
- Open Blockers and sort Fold from highest to lowest.
- Look for cards that increase the opponent's folding frequency in this fixed strategy.
Those cards can suggest bluff candidates worth inspecting. Return to your decision and check the full combo's strategy, action EVs, equity, and other card. A card that increases folding is one piece of evidence, not a command to bluff every hand containing it.
Investigate a slow play
Choose Check at your decision, then inspect the opponent's response node. Sort the Check column from lowest to highest to find cards associated with less checking and more betting by the opponent.
Connect this to the exact value hands you might check. Compare their other properties and the strategy at your original decision before drawing a conclusion.
Keep the limits of the calculation in view
Single-card effects cannot simply be added to obtain the effect of a two-card hand: the removed combinations overlap. The table also holds strategies fixed, so it does not describe how an opponent would adapt after a new solve.
Use nodelocking to test a different decision strategy, range editing to test different starting hands, and range comparison to inspect the broader matchup.