---
title: "Push or fold with 63s heads-up"
url: "https://georgelipoker.com/push-fold/heads-up/hand/63s.md"
canonical_url: "https://georgelipoker.com/push-fold/heads-up/hand/63s"
last_updated: "2026-10-23"
type: "reference"
summary: "63s shoves from the small blind at every stack up to 2bb and calls from the big blind up to 3.5bb heads-up. Exact EV at each stack."
related: ["https://georgelipoker.com/push-fold.md", "https://georgelipoker.com/push-fold/heads-up/hand/53s.md", "https://georgelipoker.com/push-fold/heads-up/hand/84o.md"]
---

# Push or fold with 63s heads-up

63s shoves from the small blind at every stack up to 2bb and calls from the big blind up to 3.5bb heads-up. Exact EV at each stack.

The solved heads-up answer for 63s: out of the small blind it shoves at every stack up to 2bb, mixes between 2.5bb and 7bb and folds deeper, and out of the big blind it calls at every stack up to 3.5bb and folds deeper. No ante, no prize pool.

- Shoves every time up to: 2bb
- Calls every time up to: 3.5bb
- Rank of 169: 147
- Combos: 4

## How deep can the small blind shove 63s?

63s shoves every time as the small blind up to 2bb. At 2bb its shove is worth -0.4187 big blinds against -0.5000 for folding. Between 2.5bb and 7bb it mixes, so either choice is close to break-even there. At 2.5bb the shove is worth -0.5233 big blinds against -0.5000 for folding. Past 7bb the chart folds it.

63s as the small blind, by stack:

| Stack | Shove frequency | Shove EV | Fold EV | Equity when called |
| --- | --- | --- | --- | --- |
| 1bb | 100% | -0.209 | -0.500 | 39.5% |
| 2bb | 100% | -0.419 | -0.500 | 39.5% |
| 3bb | 0% | -0.565 | -0.500 | 38.6% |
| 4bb | 0% | -0.548 | -0.500 | 36.8% |
| 5bb | 0% | -0.510 | -0.500 | 36.4% |
| 6bb | 0% | -0.501 | -0.500 | 36.2% |
| 7bb | 100% | -0.493 | -0.500 | 36.0% |
| 8bb | 0% | -0.518 | -0.500 | 36.0% |
| 9bb | 0% | -0.509 | -0.500 | 35.7% |
| 10bb | 0% | -0.516 | -0.500 | 35.5% |
| 11bb | 0% | -0.542 | -0.500 | 35.3% |
| 12bb | 0% | -0.560 | -0.500 | 35.3% |
| 13bb | 0% | -0.568 | -0.500 | 35.2% |
| 14bb | 0% | -0.583 | -0.500 | 35.0% |
| 15bb | 0% | -0.634 | -0.500 | 35.0% |
| 16bb | 0% | -0.647 | -0.500 | 34.4% |
| 17bb | 0% | -0.642 | -0.500 | 34.3% |
| 18bb | 0% | -0.661 | -0.500 | 34.2% |
| 19bb | 0% | -0.677 | -0.500 | 33.9% |
| 20bb | 0% | -0.695 | -0.500 | 33.8% |

## When should the big blind call with 63s?

63s calls every time as the big blind up to 3.5bb. At 3.5bb its call is worth -0.9201 big blinds against -1.0000 for folding. At 3.5bb a call breaks even at 35.7% equity, because the big blind has already posted a full blind that folding gives up. Past 3.5bb the chart folds it.

63s as the big blind, by stack:

| Stack | Call frequency | Call EV | Fold EV | Equity vs shoves |
| --- | --- | --- | --- | --- |
| 1bb | 100% | -0.209 | -1.000 | 39.5% |
| 2bb | 100% | -0.480 | -1.000 | 38.0% |
| 3bb | 100% | -0.783 | -1.000 | 36.9% |
| 4bb | 0% | -1.061 | -1.000 | 36.7% |
| 5bb | 0% | -1.325 | -1.000 | 36.7% |
| 6bb | 0% | -1.589 | -1.000 | 36.8% |
| 7bb | 0% | -1.852 | -1.000 | 36.8% |
| 8bb | 0% | -2.160 | -1.000 | 36.5% |
| 9bb | 0% | -2.439 | -1.000 | 36.4% |
| 10bb | 0% | -2.705 | -1.000 | 36.5% |
| 11bb | 0% | -3.002 | -1.000 | 36.4% |
| 12bb | 0% | -3.319 | -1.000 | 36.2% |
| 13bb | 0% | -3.624 | -1.000 | 36.1% |
| 14bb | 0% | -3.955 | -1.000 | 35.9% |
| 15bb | 0% | -4.293 | -1.000 | 35.7% |
| 16bb | 0% | -4.555 | -1.000 | 35.8% |
| 17bb | 0% | -4.891 | -1.000 | 35.6% |
| 18bb | 0% | -5.185 | -1.000 | 35.6% |
| 19bb | 0% | -5.498 | -1.000 | 35.5% |
| 20bb | 0% | -5.801 | -1.000 | 35.5% |

## What makes 63s different from similar hands?

63s is 4 combos out of the 1,326 two-card hands and ranks number 147 of the 169 starting-hand classes by equity against a random hand. From the small blind, 63s shoves cleanly 0.5bb deeper than 63o (2bb against 1.5bb). From the big blind, 63s calls cleanly 1bb deeper than 63o (3.5bb against 2.5bb). Suited hands win more often because of flushes, which is why the suited version is the more playable of the pair.

## Where can I check other hands like 63s?

The stack pages show the full shove and call charts at each depth, and the hands closest to 63s in strength, along with 63o, have pages of their own. The combos page counts the specific hands that make up 63s and how card removal changes them.

Related pages:

- [All hands and stacks heads-up](https://georgelipoker.com/push-fold.md)
- [Push or fold chart at 2bb](https://georgelipoker.com/push-fold/heads-up/2-bb.md)
- [Push or fold chart at 3bb](https://georgelipoker.com/push-fold/heads-up/3-bb.md)
- [Push or fold with 63o](https://georgelipoker.com/push-fold/heads-up/hand/63o.md)
- [Push or fold with 53s](https://georgelipoker.com/push-fold/heads-up/hand/53s.md)
- [Push or fold with 84o](https://georgelipoker.com/push-fold/heads-up/hand/84o.md)
- [63s combos and rank](https://georgelipoker.com/combos/63s.md)
- [Push or fold calculator](https://georgelipoker.com/tools/push-fold-calculator.md)

## How were the numbers for 63s computed?

We solve a chips-only game for two players: small blind 0.5, big blind 1, no ante, equal stacks. Starting hands are the 169 classes, weighted so that shared cards are impossible, and equity comes from counting every five-card board. The solver plays itself with best responses, averages them, and fixes the hands on the edge so they are exactly indifferent.

Source: GeorgeLiPoker's own heads-up solver, run on its exact preflop equity table.

## Questions

**Is 63s a shove at 10bb heads-up?**

No. At 10bb the small blind folds 63s: shoving is worth -0.516 big blinds and folding -0.500.

**Should the big blind call a shove with 63s at 15bb?**

No. At 15bb calling with 63s is worth -4.293 big blinds against -1.000 for folding, so the chart folds.

**Why does 63s 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. 63s shoves every time only up to 2bb.

## Related

- [Heads-Up Push or Fold Charts, 1 to 20bb](https://georgelipoker.com/push-fold.md)
- [Push or fold with 53s heads-up](https://georgelipoker.com/push-fold/heads-up/hand/53s.md)
- [Push or fold with 84o heads-up](https://georgelipoker.com/push-fold/heads-up/hand/84o.md)