POSTFLOP ARCHETYPE · 6h5s4c
Low connected flop strategy — 6 5 4 two-tone
Low connected flops — three connected low cards (typically 7-high or lower) — are the rare texture where the preflop caller actually has the equity edge. The caller's defending range includes many small pairs, suited connectors, and one-gappers that hit pairs, two-pair, and straights on this texture. The raiser, by contrast, is mostly stuck with overcards and overpairs that don't connect well. C-bet frequency drops below 50%, and the check range becomes large and important to protect.
Range equity by scenario
| Scenario | IP equity | OOP equity |
|---|---|---|
| BTN open · BB call · SRP · 100bb | 48.9% | 51.0% |
| CO open · BB call · SRP · 100bb | 49.1% | 50.5% |
| SB 3-bet · BTN call · 3BP · 100bb | 46.3% | 53.0% |
Solver action mixes
BTN open · BB call · SRP · 100bb
BTN c-bets ~40-45% on 654 two-tone, mostly with overpairs (TT-AA) at small sizing and a polar bluff slice. Suited connectors that hit pairs or open-enders prefer to check-call.
IP action mix
- Bet 33%: 64.3%
- Bet 75%: 4.0%
- Check: 31.7%
OOP action mix
- Check (plan x/r): 89.7%
- Donk 25%: 3.2%
- Check-raise plan: 7.1%
CO open · BB call · SRP · 100bb
Similar shape but slightly tighter c-bet — CO has fewer of the suited connector hits than BTN, so its range is more polar (overpairs and air).
IP action mix
- Bet 33%: 64.5%
- Bet 75%: 4.0%
- Check: 31.5%
OOP action mix
- Check (plan x/r): 89.8%
- Donk 25%: 3.1%
- Check-raise plan: 7.1%
SB 3-bet · BTN call · 3BP · 100bb
In 3-bet pots, SB's overpair-heavy range still beats most of BTN's flat range on 654, but the margin is small. C-bet around 50% with mostly small sizing.
IP action mix
- Bet 33%: 62.8%
- Bet 75%: 4.0%
- Check: 33.2%
OOP action mix
- Check (plan x/r): 88.5%
- Donk 25%: 3.5%
- Check-raise plan: 8.0%
Frequently asked
Should I just give up on low connected boards?
Not entirely. C-betting with overpairs at small sizing is still +EV — caller folds enough overcards and missed broadways. But the high-card c-bet portion (KQ, AJ, AT) should be a check rather than a bet most of the time.
How does 654 differ from 765?
765 is even worse for the raiser because it includes more straight-completion combos in the caller's range (any 9, 8, or 4 makes a straight). Equity drops a couple more percentage points to OOP.