PokerSolver
PokerSolver/6-max · 100bb · SB 0.4bb · 5% rake, cap 3bb/BB vs CO all-in

BB vs CO all-in

6-max · SB 0.4bb · 5% rake, cap 3bb (blinds 0.4/1bb) · 100bb · CO limps, BB isolates to 3bb, CO 3-bets to 9bb, BB 4-bets to 20.6bb, CO goes all-in · Big blind to act

6-max · 100bb · SB 0.4bb · 5% rake, cap 3bbChange game
Stacks (bb), if they differ
Pot 121bbYour cards?
20.6bb
100bb
0.4bb

Tap your two cards.

Big blind's range

314 of 1,326 combos get here
Fold 67.5%Call 32.5%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO limps, BB isolates to 3bb, CO 3-bets to 9bb, BB 4-bets to 20.6bb, CO goes all-in in 6-max · SB 0.4bb · 5% rake, cap 3bb at 100bb?

CO limps, BB isolates to 3bb, CO 3-bets to 9bb, BB 4-bets to 20.6bb, CO goes all-in in 6-max · SB 0.4bb · 5% rake, cap 3bb, 100bb: the big blind (BB) folds 67.5% and calls 32.5%. Always call: KK+, AKs. Mixed: TT-QQ, 88, A6s-AQs, KJs+, K8s-K9s, K4s-K5s, QJs, Q5s, J8s, J3s, 97s, 32s, AKo, AJo, A9o.

Always fold
99, 77, 33, A4s, A2s, KTs, K6s, J9s+, J7s, T9s, 54s, 52s
Always call
KK+, AKs
Mixed
TT-QQ, 88, A6s-AQs, KJs+, K8s-K9s, K4s-K5s, QJs, Q5s, J8s, J3s, 97s, 32s, AKo, AJo, A9o
Settings: 6-max · 100bb · SB 0.4bb · 5% rake, cap 3bb (small blind 0.4bb, big blind 1bb, 100bb stacks, 5% rake capped at 3bb; before the flop, rake only after a 3-bet). Solver: HoldemResources Calculator (HRC). 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: GGPoker Rush & Cash NL5, NL25; Natural8 Rush & Cash NL5, NL25.

Close: GGPoker regular cash NL500 (rake cap 1.6bb there, 3bb here).

Close: CoinPoker cash NL500 (rake cap 1.6bb there, 3bb here; only its tables without antes).

Close: WPT Global cash NL5 (rake cap 6bb there, 3bb here; 4% rake there, 5% here; no rake when no flop is dealt there; only its tables without antes).

Close: WPT Global cash NL50 (rake cap 4bb there, 3bb here; 4% rake there, 5% here; no rake when no flop is dealt there; only its tables without antes).

Close: Natural8 regular cash NL500 (rake cap 1.6bb there, 3bb here).

CoinPoker tables with antes: their own chart.

Rake sources: ggpoker.com/poker-games/texas-holdem (fetched 2026-10-31); Rush rake and preflop rake confirmed on our own GG exports (972 of 1,034 pots, 210 of 211); regular tables' preflop rule from natural8.com/en/poker/texas-holdem (same network, fetched 2026-10-31); natural8.com/en/poker/rush-and-cash (fetched 2026-10-31; caps $0.06 to $6, 3bb at every stake); the same GGNetwork pools as GGPoker, whose preflop rake we confirmed on GG exports; coinpoker.com/games/texas-holdem/ (caps and the preflop rule) and coinpoker.com/guides/poker-rake/ (5%), fetched 2026-10-31; wptglobal.com/poker/poker-table-rake (fetched 2026-10-31); natural8.com/en/poker/texas-holdem (fetched 2026-10-31; caps by players dealt in, 3-bet pots raked before the flop).