Blind vs blind is where online poker stops being “standard” and starts being pure range warfare. You are both forced to put money in, you are both wide, and you are both incentivized to fight because there is dead money sitting there every hand.
If you want to analyze these spots well, you need a simple framework that survives multi tabling. Not vibes. Not “I had a feeling.” We want repeatable logic that tells you what your range should do, and why.
Why blind vs blind is its own game
In most positions, ranges are naturally constrained. In blind vs blind, they explode. SB opens extremely wide, BB defends extremely wide, and both players interact with the rake, position, and initiative differently than any other spot.
Online, this matters even more because players are often tighter in early positions and then wildly over aggressive blind vs blind. Your edge comes from understanding who has the incentive to push EV and who is forced to realize equity poorly.
Remember the non negotiables. SB is out of position postflop. BB closes the action preflop and has direct pot odds. Those two facts drive almost everything.
The EV engine: what you are actually analyzing
When you analyze a blind vs blind hand preflop, you are not asking “what do I feel like doing.” You are comparing the EV of three actions.
- Fold EV, usually zero from the BB, and negative from SB because you already posted.
- Call EV, driven by direct price, postflop realization, and rake drag.
- Raise EV, driven by fold equity now, equity when called, and how well your range plays postflop.
Most players only think about the first layer, “do I have enough equity.” You must add the second layer, “can I realize it.” In blind vs blind, equity without realization is a trap, especially for SB.
Rake changes ranges, but it does not play the hand for you
In online poker games, rake is a real tax that punishes small pots and thin edges. That pushes both players to protect their EV by folding some marginal continues and by preferring lines that either win preflop or build pots with hands that can win bigger.
But do not make rake your excuse to play scared. Rake is one variable. Position, initiative, and player type still decide the best line. Against a BB who over folds, you still open wide. Against a BB who defends wide and plays well postflop, you tighten the low equity trash and raise more of your value.
SB opening analysis: build a range with purpose
SB is the aggressor preflop most of the time. Your open size and your range composition should be chosen to create fold equity while keeping your postflop life manageable.
At 100bb, most online pools converge on 2x to 2.5x opens. The smaller the size, the more BB can defend, but the cheaper your steals become. The larger the size, the more BB is pressured, but you burn more when you get 3 bet or called and outplayed.
Strategically, your SB opening range wants three categories.
- Strong value, hands that can take heat and continue versus 3 bets, like AQo, AK, JJ+.
- Playable middling hands, suited broadways, suited aces, suited connectors, hands that realize reasonably well even when you are out of position.
- Low equity steals, the bottom of the range that exists mainly to pick up the dead money when BB over folds. If BB is sticky, this section shrinks fast.
Anti hope poker rule. Do not open hands that rely on flopping miracles and then paying rake in small pots. If a hand cannot defend itself across many runouts, it belongs in the muck more often than most players admit.
BB defense analysis: you close the action, use it
BB has better pot odds and position postflop. That is why BB defends wide. But wide does not mean mindless. You still need a plan against SB’s continuation strategy and SB’s 3 bet defense.
Your BB options are call, 3 bet, or fold. The biggest leak I see online is players either call too much with dominated trash, or they 3 bet too linear and end up value heavy, which lets SB realize too easily with calls.
A strong BB approach uses a mix.
- 3 bet for value, hands that are happy stacking off versus 4 bets or playing big pots, like QQ+, AK.
- 3 bet as leverage, hands that block SB continues and play well in big pots, like A5s, K9s, Q9s, some suited connectors at the right frequencies.
- Call to realize, hands that are not strong enough to 3 bet but have enough equity and playability, like KTo, QTo, suited gappers, pocket pairs.
Here is the key. BB calls realize more equity than SB calls because BB has position. That means BB can defend hands that SB should not open in the first place against a strong opponent.
Who is left to act matters. In blind vs blind, nobody is left to act, which removes the squeeze threat. That is why you can widen compared to BTN vs BB dynamics where other players are not involved but position and range still differ. Context dictates strategy.
Polar vs linear 3 betting: stop using the wrong shape
Blind vs blind 3 betting is often more polar than people think, because the opener is very wide. When SB opens 50 to 70 percent, BB gains EV by attacking with hands that either dominate SB’s continuing range or have good blockers and playability.
A purely linear 3 bet range, like “all the best hands down to ATo and KQo,” creates a problem. SB’s response becomes too easy. They fold the bottom, call the middle, and 4 bet the top. Your bluffs get snapped and your value gets under realized.
A polar range forces mistakes. When your value is strong and your bluffs are well chosen, SB has to defend some awkward hands and gets pushed into low EV calls out of position.
4 bet decisions: small, sharp, and rare
Blind vs blind 4 betting exists, but it should not become a leveling war. Most online opponents do not have a clean 3 bet bluffing strategy, which means you can often exploit by 4 betting more for value and bluffing less.
Your questions are simple.
- Does villain 3 bet too much, especially with hands that do not want to face a 4 bet.
- Do you block their continues, primarily with an ace or king.
- Do you have a clear plan versus a shove, because 100bb stacks get in quickly.
If you are not sure, do not click buttons. Calling in position as BB can be great. Calling out of position as SB is a tax you should avoid unless your hand is legitimately robust.
Common blind vs blind leaks I want you to eliminate
Leak 1, SB open too wide versus sticky BB. If BB defends a ton and fights postflop, your low equity steals light money on fire. Trim the offsuit trash. Keep the suited and connected hands.
Leak 2, BB 3 bet too big. Giant 3 bets bloat pots with a range that still misses often. You give SB better implied odds and you force yourself into high variance lines. Use a size that applies pressure but still lets your bluffs exist.
Leak 3, BB calls with dominated offsuit broadways with no plan. Hands like K7o and Q8o look connected to top pair, but they make second best pairs and lose big pots. Choose hands that make strong top pairs or strong draws.
Leak 4, SB flatting 3 bets “to see a flop.” This is set mining thinking. You are out of position in a big pot. If you call, it needs to be because your hand can fight across many textures, not because you are hoping to spike.
Hand Scenario: The Small Blind Pressure Test
Game: Online 6 max cash, 100bb effective. Folds to SB. You are SB with 8♠ 7♠. You open to 2.3bb. BB is a thinking reg who 3 bets a lot blind vs blind and uses a polarized strategy. BB 3 bets to 8.5bb.
Your decision: Folding feels weak, calling feels tempting, 4 betting feels ambitious. This is where analysis matters. With 8♠ 7♠, you do not block value and you do not block folds. You are relying on postflop realization out of position in a 3 bet pot, which is hard even with a suited connector.
Recommended line: Versus a strong polarized 3 bet range, this hand is often a fold at 100bb in many rake environments. If rake is low and villain’s 3 bet sizing is small, you can mix in calls at some frequency because you can make strong draws and occasionally win big pots. But defaulting to a call is a leak.
Now the flop: You call and the flop comes J♥ 6♣ 2♠. BB c bets 25 percent pot.
Analysis on the flop: You have a backdoor flush, a backdoor straight, and two undercards. This is the exact spot that shows why preflop discipline matters. Your relative strength is low, and your realization is capped because many turn cards still leave you guessing. If you fold here, you essentially paid preflop to donate more rake and give villain an easy c bet profit.
The takeaway from the scenario: The preflop call is not “wrong” because 87s is unplayable. It is wrong when villain is competent, you are out of position, stacks are only 100bb, and you do not have a clear plan to pressure turns and rivers. Tighten SB versus frequent 3 bettors, and force them to earn it.
A simple blind vs blind analysis checklist
When you review your database or a session, run this checklist on every blind vs blind hand. It keeps you honest and it keeps you fast.
- What is the SB open size, and what does that do to BB’s pot odds.
- What is BB’s 3 bet frequency blind vs blind, and is it polarized or linear.
- How does your hand perform versus the continuing range, not versus the total range.
- Do you block value or block folds, which matters most for 4 bet bluffs.
- How well do you realize equity given position and pot size.
- What is the rake, and is the edge big enough to survive the tax.
Over time, you will notice a pattern. Winning blind vs blind players are not necessarily the most aggressive. They are the most selective about where aggression prints and where it is just noise.
Key Takeaway
Blind vs blind preflop analysis is an EV comparison between folding, calling, and raising, under the constraints of position, initiative, and rake. As SB, open wide with hands that can realize equity out of position, and trim low playability offsuit trash versus sticky or aggressive BBs. As BB, defend wide but purposefully, using a polarized 3 bet strategy to pressure SB’s over opens, and avoid passive “see a flop” calls that create low realization, rake heavy spots.
