Combinations of an opponent range
Content by Tools of Poker Methodology and calculation assumptions
A range is a sum of hand combinations
We do not know the opponent’s exact hand. We assign a range: a set of hands they could have, based on their position and action. Each hand class contributes its own combos.
We will follow one example. The opponent range contains TT, JJ, QQ, KK, AA and AKs. Count only these hands; AKo and other hands are outside our starting range.
Perceived range
Your cards
board
1. Add the original combos in the range
The five pairs contribute 6 combos each, and AKs contributes 4. Six highlighted hand classes therefore represent more than six combos.
This is the original perceived range: the starting total before removing any cards.
2. Count blocked combos in each hand class
Your As removes three AA combos. The Kh on the board removes three KK combos. AKs loses AsKs and AhKh. TT, JJ and QQ are unaffected by these known cards.
Count each physical combo only once. A blocked AA combo and a blocked AKs combo are different hands, even if both contain As.
3. Subtract to find the available range
Remove the blocked combos from the original total. The remaining combos are the possibilities the opponent can still hold within the range we assigned.
The hand labels AA, KK and AKs stay in the range, but with fewer combos. Only a hand with no available combos would disappear completely.
4. Compare what remains with the original range
We started with 34 combos and 26 remain possible. To express the part that survives as a percentage, divide the available count by the original count and multiply by 100.
- Perceived range
- 34
- Blocked combos
- 8
- Available range
- 26
- Available range (%)
- 76.47%
26 ÷ 34 × 100 = 76.47%
26 of the 34 original combos remain available: 76.47% of the perceived range survives the blockers.
The denominator is the range we started with. Hands outside that range do not enter this calculation. Round only the final percentage to two decimal places.
Read the three counts in each range cell
Read each highlighted cell from left to right: original combos / blocked combos / available combos.
- AA shows 6/3/3: 6 combos originally, 3 blocked by As and 3 still possible.
- AKs shows 4/2/2: 2 of its 4 suited combos are blocked, leaving 2.
Open a highlighted hand to see its exact card combinations. Crossed-out cards explain the blocked count; checks show the combos that remain. Yellow cells are partly blocked, not incorrect answers.
We assign the 3-bet range to the opponent in BB (30 BB). Against BTN.
View source chartHand combinations reference
| Hand type | Example | Combos |
|---|---|---|
| Pair | AA | 6 |
| Suited hands | AKs | 4 |
| Offsuit hands | AKo | 12 |
| Any suits (suited + offsuit) | AK | 16 |
Next: find what the available combos form
Here we counted how many combos survive the blockers. In lesson 4.4, we use those same available combos to find how many have top pair, a set or a draw on the board.
4.4 · Range composition on the board