93o vs 86o: Pre-flop Strategy and Win Rate Analysis at 20BB Depth

Definition and Background

In Texas Hold'em, 93o and 86o represent two offsuit hands: 9♠3♥ (93o) and 8♣6♦ (86o). The letter ‘o’ stands for offsuit, meaning the cards are of different suits. Both hands are extremely weak starting hands and are typically not included in standard preflop raising ranges. However, at a short stack depth of 20 big blinds (BB), the situation changes. 20BB is a common stack size in the middle to late stages of tournaments, where players' ranges can tighten or loosen significantly depending on position, opponent style, and ICM (Independent Chip Model) pressure.

Principles: Equity and Game Logic

Equity Comparison

According to common equity calculation software (e.g., PokerStove or Hold'em Manager), assuming both players are all-in preflop with no other interference, 93o versus 86o has approximately 37% : 63% equity (note: this is a typical example; actual equity may vary slightly due to suit combinations, but the trend remains). 86o leads mainly because its cards are closer together, making it easier to form straights (e.g., 5-6-7-8-9 or 4-5-6-7-8), while 93o has larger gaps and can only rely on the high card of 9 or very weak straight draws (e.g., 5-6-7-8-9 requires three middle cards). Additionally, 86o has slightly higher showdown value when unpaired.

Core Short Stack Strategy

At 20BB, preflop all-in or fold becomes the primary choice. This is because the pot odds after a raise force players to almost always call an all-in, negating positional advantage. Therefore, preflop ranges are mainly based on all-in pot odds and the opponent's calling range. It is generally considered that shoving from the small blind with 93o against the big blind is extremely -EV, as the big blind will call with a wide range. On the button, shoving 93o against the small and big blinds depends on the probability that both fold. The better the position, the higher the blind-steal success rate, and the more feasible it becomes to shove weak hands.

Practical Examples

Example 1: Button vs. Blinds

Assume you are on the button with 20BB, and both blinds also have 20BB (no antes). Everyone folds to you, and you have 93o. If you shove, the small blind and big blind each face a call of 20BB. Their calling ranges at 20BB are typically tight: roughly 20%-30% of hands, such as all pairs, A-high hands, KQo, etc. The small blind will fold about 70% of the time, similarly for the big blind. Assuming independent fold probabilities, the total fold equity is about 0.7 × 0.7 ≈ 0.49, meaning nearly half the time you win 1.5BB (small blind + big blind) immediately. However, when called, you are almost always behind, with only about 37% equity. Expected value (EV) calculation:

• Probability of being called ≈ 1 - 0.49 = 0.51. When called by one blind, your equity is about 37%. EV when called = 0.37 × (+1.5BB) + 0.63 × (-20BB) ≈ 0.555 - 12.6 = -12.045BB.
• EV from folds = 0.49 × 1.5BB = 0.735BB.
• Total EV ≈ 0.735 - 12.045 ≈ -11.31BB. Thus, even considering fold equity, shoving 93o is severely -EV. Therefore, shoving from the button with 93o is a poor choice. Folding is much better.

Example 2: Small Blind vs. Big Blind

You are in the small blind with 20BB, and the big blind also has 20BB, no antes. You have 86o. Is it viable to shove from the small blind against the big blind? The big blind's calling range will be wider because they already have 1BB invested and are getting good pot odds. They need to call 19BB to win 21BB (including their own 1BB), about 1.1:1 odds, so they will call with almost any hand that has equity. Typically, the big blind calls with 50%-70% of hands. 86o against a random hand from the big blind has about 55% equity (typical data, but depends on the calling range). However, it is necessary to calculate precisely. If the big blind calls with a loose range, 86o's equity may be less than 50%. More importantly, shoving 86o from the small blind is extremely risky: when called, it is mostly a coin flip, but the loss when called must be considered. Usually, at this stack depth, shoving 86o from the small blind is close to zero or slightly -EV, so folding is safer.

Common Misconceptions

Misconception 1: Shoving weak hands is always losing

Wrong. At extremely short stacks (e.g., below 10BB), shoving weak hands is sometimes necessary. But at 20BB, there is still enough room to fold, so actively shoving weak hands is not advisable.

Misconception 2: Preflop equity determines everything

Although preflop equity is important, factors such as position, fold equity, opponent range, and stack size are equally crucial. 93o is a big underdog against 86o, but if fold equity is extremely high, it could still be +EV. However, as shown above, at 20BB fold equity is insufficient to compensate for the disadvantage.

Misconception 3: 86o is much stronger than 93o, so it is playable often

86o is a better weak hand, but still far below playable standards. In full-ring or 6-max games, players typically only raise with the top 15% of hands from early positions, and 86o is not among them.

Summary

• At 20BB, both 93o and 86o are extremely weak starting hands and should not be used to build the pot actively, let alone shove.
• 86o has about 63% equity against 93o, but in actual preflop strategy, this advantage is insufficient to offset position and risk.
• The only scenario where these hands might be used is when you are in the big blind facing a min-raise from the small blind, where calling could be profitable. However, most of the time, folding is the optimal choice.
• Short-stacked players should focus on strong hands and speculative hands (suited connectors, small pairs) and be cautious when applying pressure with marginal holdings.