Chapter 01 · Combinatorics

There are 169 names. The deck deals 1,326 hands.

Win-rate math starts here. A range is not a list of hand names — it is a pile of combinations. Pocket pairs look huge on a chart and are scarce in the deck. Offsuit hands look like the leftover triangle and are 70.6% of everything you are actually dealt.

169distinct starting hands
1,326real two-card combos
6 / 4 / 12pair · suited · offsuit weight
1 in 221to be dealt AA

The census

Hand type Distinct Each Combos
Pocket pairs AA 13 6 78
Suited AKs 78 4 312
Offsuit AKo 78 12 936
Total 169 — 1,326
78 pairs · 5.9% 312 suited · 23.5% 936 offsuit · 70.6%

13 × 13 grid · every named hand

Pairs on the diagonal. Suited above. Offsuit below.

Why the weights exist

Suits and leftovers.

52 cards. First card free. Second card is 51 leftovers.

Pairs · 6. AA is AcAd, AcAh, AcAs, AdAh, AdAs, AhAs. C(4,2) = 6.

Suited · 4. AKs is hearts, diamonds, clubs, or spades together. One suit per combo.

Offsuit · 12. AKo is 4 aces × 4 kings minus the 4 suited matches = 12. Three times the suited twin.

So “AK” in a range is 16 combos if both versions are in. “AKs” alone is 4. Treating them as equal is how people misread 3-bet ranges.

Deck weight · 1,326 tiles

What the dealer actually hands you.

Each square is one combo. Gold is any pocket pair. Mint is any suited hand. Blue is any offsuit hand. This is why a “wide offsuit range” is much heavier than it looks on a name grid.

78 gold + 312 mint + 936 blue = 1,326

Frequencies that matter at the table

Named hands, real odds.

HandCombosP(dealt)1 in
AA60.45%221
Any pair785.88%17
AKs40.30%332
AKo120.90%111
AK (s+o)161.21%83
Any suited31223.5%4.3
Any offsuit93670.6%1.4

Win-rate implication

Count combos, not labels — or the range in your head is the wrong size.

If a tight UTG open is “pairs 99+, AKs, AQs, AKo,” that is 6+6+6+6 + 4+4 + 12 = 44 combos, about 3.3% of hands. If you casually add AQo because “it’s the same as AKo,” you just added 12 more combos — a 27% inflation of the range. Blockers work the same way: an ace in your hand removes 3 of the 4 AKs and 9 of the 12 AKo. The next chapters (position ranges, 3-bets, pot odds) all sit on this counting system.