Blind vs Blind: How to Play SB vs BB Preflop

Blind vs blind (BvB) is the pot that happens when everyone folds around to the small blind and only the small blind and big blind are left. Because both players already have chips in and nobody has shown strength, ranges balloon: the small blind attacks with a wide range, and the big blind defends far wider than anywhere else at the table. Play it too tight and you bleed your forced bets; play it well and it becomes a steady profit center.

Why the ranges are so wide

Two forces widen everything:

• Dead money. Both blinds are posted, so there’s a pot worth stealing even with weak holdings.
• No prior strength. Nobody opened or called, so neither player’s range is capped or premium-heavy. That uncertainty rewards aggression.

The result is a spot where hands you’d fold in the face of a UTG raise become clear raises and calls.

Small blind strategy: raise, don’t limp

From the small blind with everyone folded, the modern default is raise or fold, opening a wide range:

• You can win the big blind’s dead money outright when they fold.
• You take the initiative into a heads-up pot.
• A raise avoids the trap of limping into a bloated multiway-style pot out of position.

A raise-first strategy is the simplest strong approach. Advanced players mix in a limping range too, but raise-or-fold captures most of the value without the complexity. Because you’ll be out of position the whole hand, size a little larger than usual — often around 3–3.5× — to charge the big blind and reduce how wide they profitably continue.

Big blind strategy: defend wide, 3-bet a lot

You have the best price in poker here — you close the action with money already invested. So you defend very wide:

• Call with playable hands: any suited hand of real value, connected cards, most pairs, and reasonable offsuit broadways.
• 3-bet a polarized mix — your strongest hands for value plus bluffs with blockers and playability — to punish a wide small-blind open. The same logic drives every 3-bet range.
• Fold only the true trash that can’t flop anything.

Being in position postflop is a big edge here, which is exactly why position matters even in a two-player pot.

Sample blind vs blind ranges

At 100bb, folded to the small blind:

These are wider than any other seat matchup — that’s the whole point of BvB.

A worked spot

Folded to you in the small blind with K♣ 8♦.

• Against a full table this is a marginal hand, but heads-up with dead money it’s a clear raise. K-8 offsuit dominates a chunk of the big blind’s defending range and picks up the blinds when they fold.
• Now flip seats: you’re in the big blind with the same K♣ 8♦ and the small blind raises. You’re getting a great price in position, so you call — folding here would be far too tight against a wide opener.

Same modest hand, two different aggressive actions — that’s blind vs blind in a nutshell.

Common blind vs blind mistakes

• Playing too tight. Waiting for premiums surrenders the dead money over and over.
• Limping the small blind. Gives up initiative and invites a wide, in-position big blind to punish you postflop.
• Under-defending the big blind. With the best price at the table, folding a majority of hands is a serious leak.
• Never 3-betting from the big blind. A wide small-blind open should face 3-bet pressure, not just flats.

Putting it together

Blind vs blind rewards aggression: raise a wide small blind, defend an even wider big blind, and 3-bet freely to attack loose opens. Anchor it to your broader opening ranges, remember that these forced-bet battles add up fast in a cash game, and see how it fits the whole tree in the preflop strategy hub.