SB vs CO all-in
6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO opens 2bb, SB 3-bets to 4bb, CO goes all-in · Small blind to act
6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 255.8bbYour cards?
4bb
1bb
249.84bb
Tap your two cards.
Small blind's range
230 of 1,326 combos get hereFold 86.9%Call 13.1%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the small blind (SB) when CO opens 2bb, SB 3-bets to 4bb, CO goes all-in in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?
CO opens 2bb, SB 3-bets to 4bb, CO goes all-in in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the small blind (SB) folds 86.9% and calls 13.1%. Always call: AA. Mixed: JJ-KK, AKs, AJs, KJs, AKo.
- Always fold
- 55-TT, AQs, A4s-ATs, KQs, K9s-KTs, Q9s+, JTs, T8s+, 98s, 87s, 76s, 65s, 54s, AQo, KQo
- Always call
- AA
- Mixed
- JJ-KK, AKs, AJs, KJs, AKo
Settings: 6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 250bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 29.27). A jackpot fee on bigger pots is not in this solve, so lines that build big pots may be slightly too loose. Bet sizes are the solved ones; a size that is not here plays like the nearest one.
Fits exactly: no game we have checked.
Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).
Rake sources: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.