Known-card blockers

Count the opponent's combos after removing your cards and the board.

Select the number of original combos

Select the number of blocked combos

Select the number of remaining combos

Q of Spades
3 of Diamonds
A of Hearts
25 seconds remaining
Hero
2 of Hearts
J of Diamonds
Villain

Same suit

Blockers reference table

In these examples, As is the only known card. As

Start with all the combos. Cross out every combo containing the known card. Count those that remain.
Hand typeSee which combos disappear
PairAA

Pair As with each of the other three aces: those 3 combos are blocked.

As Ah As Ad As Ac
Original combos
6
Blocked combos
3
Remaining combos
3
Suited handsAKs

Only AsKs contains As: that one suited combo is blocked.

As Ks
Original combos
4
Blocked combos
1
Remaining combos
3
Offsuit handsAKo

As can pair with three kings of a different suit: those 3 combos are blocked.

As Kh As Kd As Kc
Original combos
12
Blocked combos
3
Remaining combos
9
Any suitsAK

As can pair with any of the four kings: those 4 combos are blocked.

As Ks As Kh As Kd As Kc
Original combos
16
Blocked combos
4
Remaining combos
12

Remove each blocked combo only once. Knowing both As and Ks still removes just one AKs combo.