--- title: "K8s Combos: Count, Blockers, Board Pairs" url: "https://georgelipoker.com/combos/k8s.md" canonical_url: "https://georgelipoker.com/combos/k8s" last_updated: "2026-10-21" type: "reference" summary: "K8s is 4 combos of the 1,326 starting hands (0.30%). See how a known card or a board pair changes the count, plus its rank and equity." related: ["https://georgelipoker.com/combos.md", "https://georgelipoker.com/combos/a7o.md", "https://georgelipoker.com/combos/a3s.md"] --- # K8s Combos: Count, Blockers, Board Pairs K8s is 4 combos of the 1,326 starting hands (0.30%). See how a known card or a board pair changes the count, plus its rank and equity. K8s can be dealt in 4 combos. That is 0.30% of the 1,326 two-card hands, and its 58.31% equity against a random hand ranks it number 37 out of 169. - Combos: 4 - Share of 1,326: 0.30% - Rank of 169: 37 - Equity vs random: 58.31% - This hand and stronger: 18.70% ## K8s: the 4 combos Fix the suit, and the king and eight of that suit are the only choice; four suits make 4 combos. These are the 4 specific hands that count as K8s. Each tile is one two-card holding, and no two tiles are the same hand. The 4 combos of K8s: Ks 8s, Kh 8h, Kd 8d, Kc 8c. ## How cards you can see change the count This is the blocker table for K8s. One visible card of a given rank removes the combos that need it, and the rest stay possible. K8s combos left after one known card of each rank: | Known card | K8s combos left | | --- | --- | | Ace | 4 | | King | 3 | | Queen | 4 | | Jack | 4 | | Ten | 4 | | Nine | 4 | | Eight | 3 | | Seven | 4 | | Six | 4 | | Five | 4 | | Four | 4 | | Three | 4 | | Two | 4 | With a king or an eight in view, 3 of the 4 combos of K8s remain, which removes 25%. Any card of a different rank leaves all 4 combos in play. ## When the board is paired Boards with a pair remove two cards of one rank at once. The rows give the K8s combos left for each paired rank. K8s combos left after a pair of each rank on the board: | Board pair | K8s combos left | | --- | --- | | Aces | 4 | | Kings | 2 | | Queens | 4 | | Jacks | 4 | | Tens | 4 | | Nines | 4 | | Eights | 2 | | Sevens | 4 | | Sixes | 4 | | Fives | 4 | | Fours | 4 | | Threes | 4 | | Twos | 4 | Only a board pair of kings or eights matters here: 2 combos of K8s remain, against 4 for any other pair. ## A worked example Suppose you look down at a king and a two. Any opponent hand comes from 1,225 possibilities. K8s makes up 3 of them, which is 0.24% (1 in 408); if you held neither card's rank in common with K8s, it would be 4 of them, 0.33%. ## How strong is K8s? Order all 169 classes by equity against a random hand and K8s lands at number 37, inside the top 60 classes, with 58.31%. A tie is worth half a win in that figure. Down to and including K8s, the ranking holds 248 combos, or 18.70% of deals; 244 of them belong to hands above it. ## K8s against ranges of hands Five ranges, five equities for K8s. Counting only the combos your cards leave possible, it has 30.85% against the top 5 percent (60 combos), 34.19% against the top 10 percent (130 combos), 37.26% against the top 20 percent (264 combos), 40.93% against the top 30 percent (386 combos) and 49.96% against the top 50 percent (658 combos). K8s equity against the strongest hands: | Opponent range | Combos in range | K8s equity | | --- | --- | --- | | Top 5 percent | 60 | 30.85% | | Top 10 percent | 130 | 34.19% | | Top 20 percent | 264 | 37.26% | | Top 30 percent | 386 | 40.93% | | Top 50 percent | 658 | 49.96% | K8s is behind all five of these ranges, even the top 50 percent, so it is the underdog on average against each of them. Blockers work on ranges as well as hands. Against the 130 combos of the top 10 percent, K8s leaves an average of 118.00. That is 12.00 combos fewer than the 130 an opponent has before you look. ## Hands next to K8s Look at K8s against the hands that rank next to it. K8s has 42.91% equity against A7o, the hand ranked number 36: it wins 42.70% of boards, ties 0.42% and loses 56.88%. It is the underdog in that matchup. K8s has 41.11% equity against A3s, the hand ranked number 38: it wins 40.85% of boards, ties 0.53% and loses 58.62%. It is the underdog in that matchup. K8o is what the same two ranks look like when they are offsuit: 12 combos at number 51, 56.02% equity. K8o is 3 times as many combos but 2.29 points weaker against a random hand. Related to K8s: - [A7o combos](https://georgelipoker.com/combos/a7o.md) - [A3s combos](https://georgelipoker.com/combos/a3s.md) - [K8o combos](https://georgelipoker.com/combos/k8o.md) - [Top 20 percent range](https://georgelipoker.com/combos/range/20.md) - [All starting hands](https://georgelipoker.com/combos.md) - [Hand ranking calculator](https://georgelipoker.com/tools/hand-ranking-calculator.md) - [Poker equity calculator](https://georgelipoker.com/tools/equity-calculator.md) ## Questions about K8s combos **How many combos of K8s are there?** 4 combos, which is 0.30% of the 1,326 two-card starting hands, so you are dealt K8s about 1 time in 331.5. **How many K8s combos are left if I hold a king?** 3 combos of K8s remain out of 4. With a two as your other card, an opponent has it about 1 time in 408. **Is K8s stronger than K8o?** Yes, by 2.29 points: K8s has 58.31% equity against a random hand and ranks number 37, while K8o has 56.02% and ranks number 51. K8o has 12 combos to K8s's 4. ## How this was computed All 1,326 two-card holdings were grouped into classes, and the K8s group was counted. The blocker rows drop each combo containing a visible card; the board-pair rows do it for a visible pair. Exact matchups, counted over all 1,712,304 boards, supply the rank and equity. A tie counts as half, and ranges are weighted by the combos that remain. Source: GeorgeLiPoker's own count of the 52-card deck and its preflop matchup table. ## Related - [Poker Combos: Count Every Starting Hand](https://georgelipoker.com/combos.md) - [A7o Combos: Count, Blockers, Board Pairs](https://georgelipoker.com/combos/a7o.md) - [A3s Combos: Count, Blockers, Board Pairs](https://georgelipoker.com/combos/a3s.md)