How deep can the small blind shove J2o?
J2o shoves every time as the small blind up to 4.5bb. At 4.5bb its shove is worth -0.4822 big blinds against -0.5000 for folding. Past 4.5bb the chart folds it.
| Stack | Shove frequency | Shove EV | Fold EV | Equity when called |
|---|---|---|---|---|
| 1bb | 100% | -0.113 | -0.500 | 44.3% |
| 2bb | 100% | -0.226 | -0.500 | 44.3% |
| 3bb | 100% | -0.341 | -0.500 | 42.7% |
| 4bb | 100% | -0.433 | -0.500 | 38.4% |
| 5bb | 0% | -0.538 | -0.500 | 35.4% |
| 6bb | 0% | -0.615 | -0.500 | 33.9% |
| 7bb | 0% | -0.690 | -0.500 | 32.6% |
| 8bb | 0% | -0.752 | -0.500 | 32.3% |
| 9bb | 0% | -0.781 | -0.500 | 31.6% |
| 10bb | 0% | -0.810 | -0.500 | 31.2% |
| 11bb | 0% | -0.844 | -0.500 | 31.1% |
| 12bb | 0% | -0.891 | -0.500 | 30.7% |
| 13bb | 0% | -0.908 | -0.500 | 30.6% |
| 14bb | 0% | -0.937 | -0.500 | 30.4% |
| 15bb | 0% | -1.008 | -0.500 | 30.3% |
| 16bb | 0% | -0.991 | -0.500 | 30.3% |
| 17bb | 0% | -0.984 | -0.500 | 30.0% |
| 18bb | 0% | -1.011 | -0.500 | 29.8% |
| 19bb | 0% | -1.025 | -0.500 | 29.7% |
| 20bb | 0% | -1.034 | -0.500 | 29.9% |
When should the big blind call with J2o?
J2o calls every time as the big blind up to 4bb. At 4bb its call is worth -0.9304 big blinds against -1.0000 for folding. At 4bb a call breaks even at 37.5% equity, because the big blind has already posted a full blind that folding gives up. Past 4bb the chart folds it.
| Stack | Call frequency | Call EV | Fold EV | Equity vs shoves |
|---|---|---|---|---|
| 1bb | 100% | -0.113 | -1.000 | 44.3% |
| 2bb | 100% | -0.314 | -1.000 | 42.1% |
| 3bb | 100% | -0.625 | -1.000 | 39.6% |
| 4bb | 100% | -0.930 | -1.000 | 38.4% |
| 5bb | 0% | -1.216 | -1.000 | 37.8% |
| 6bb | 0% | -1.532 | -1.000 | 37.2% |
| 7bb | 0% | -1.814 | -1.000 | 37.0% |
| 8bb | 0% | -2.141 | -1.000 | 36.6% |
| 9bb | 0% | -2.392 | -1.000 | 36.7% |
| 10bb | 0% | -2.706 | -1.000 | 36.5% |
| 11bb | 0% | -3.185 | -1.000 | 35.5% |
| 12bb | 0% | -3.475 | -1.000 | 35.5% |
| 13bb | 0% | -3.780 | -1.000 | 35.5% |
| 14bb | 0% | -4.107 | -1.000 | 35.3% |
| 15bb | 0% | -4.568 | -1.000 | 34.8% |
| 16bb | 0% | -4.883 | -1.000 | 34.7% |
| 17bb | 0% | -5.305 | -1.000 | 34.4% |
| 18bb | 0% | -5.721 | -1.000 | 34.1% |
| 19bb | 0% | -6.124 | -1.000 | 33.9% |
| 20bb | 0% | -6.424 | -1.000 | 33.9% |
What makes J2o different from similar hands?
J2o is 12 combos out of the 1,326 two-card hands and ranks number 121 of the 169 starting-hand classes by equity against a random hand. From the small blind, J2o shoves cleanly 4bb shallower than J2s (4.5bb against 8.5bb). From the big blind, J2o calls cleanly 1.5bb shallower than J2s (4bb against 5.5bb). The offsuit version has three times as many combos but gives up the flush equity of its suited twin.
Where can I check other hands like J2o?
The stack pages show the full shove and call charts at each depth, and the hands closest to J2o in strength, along with J2s, have pages of their own. The combos page counts the specific hands that make up J2o and how card removal changes them.
How were the numbers for J2o computed?
The game has two players, blinds of 0.5 and 1, no ante and one effective stack. Every one of the 169 starting-hand classes is dealt in proportion to the card-compatible pairs of specific hands, and a showdown is settled with the exact equity from our preflop table. Each side keeps answering the other's average strategy until neither can gain, then the borderline hands are solved exactly.
Source: GeorgeLiPoker's own heads-up solver, run on its exact preflop equity table.
Questions
- Is J2o a shove at 10bb heads-up?
- No. At 10bb the small blind folds J2o: shoving is worth -0.810 big blinds and folding -0.500.
- Should the big blind call a shove with J2o at 15bb?
- No. At 15bb calling with J2o is worth -4.568 big blinds against -1.000 for folding, so the chart folds.
- Why does J2o change from a shove to a fold as stacks grow?
- Deeper stacks put more chips at risk for the same blinds, and the big blind can afford to call a smaller share of hands. J2o shoves every time only up to 4.5bb.