PokerSolver
PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs CO all-in

SB vs CO all-in

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO opens 2bb, SB 3-bets to 4bb, CO 4-bets to 9.2bb, SB 5-bets to 20.24bb, CO goes all-in · Small blind to act

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 221.72bbYour cards?
20.24bb
1bb
199.84bb

Tap your two cards.

Small blind's range

186 of 1,326 combos get here
Fold 88.7%Call 11.3%
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 4-bets to 9.2bb, SB 5-bets to 20.24bb, CO goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

CO opens 2bb, SB 3-bets to 4bb, CO 4-bets to 9.2bb, SB 5-bets to 20.24bb, CO goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the small blind (SB) folds 88.7% and calls 11.3%. Always call: AA. Mixed: TT-KK, AKs.

Always fold
99, 66-77, ATs-AQs, A8s, A4s-A6s, KTs+, QTs+, JTs, T9s, 98s, 87s, 76s, 65s, AQo+
Always call
AA
Mixed
TT-KK, AKs
Settings: 4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 200bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.

Rake sources for the games it fits: 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.