PokerSolver
PokerSolver/4-max · 100bb · SB 0.5bb · 5% rake, cap 3bb/BB vs CO 3-bet 6bb

BB vs CO 3-bet 6bb

4-max · SB 0.5bb · 5% rake, cap 3bb (blinds 0.5/1bb) · 100bb · CO limps, BB isolates to 2bb, CO 3-bets to 6bb · Big blind to act

4-max · 100bb · SB 0.5bb · 5% rake, cap 3bbChange game
Stacks (bb), if they differ
Pot 8.5bbYour cards?
2bb
6bb
0.5bb

Tap your two cards.

Big blind's range

356 of 1,326 combos get here
Fold 64.4%Call 16.9%Raise 13.8bb 16.2%All-in 100bb 2.6%
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 2bb, CO 3-bets to 6bb in 4-max · SB 0.5bb · 5% rake, cap 3bb at 100bb?

CO limps, BB isolates to 2bb, CO 3-bets to 6bb in 4-max · SB 0.5bb · 5% rake, cap 3bb, 100bb: the big blind (BB) folds 64.4%, calls 16.9%, raises 13.8bb 16.2% and goes all-in 100bb 2.6%. Mixed: TT+, 88, 66, 33-44, A9s+, A7s, A4s-A5s, A2s, KQs, KTs, K7s-K8s, K3s-K5s, Q9s+, J9s, T9s, T7s, 97s+, 85s, 75s+, 63s-64s, 54s, 43s, AKo, ATo.

Always fold
77, 55, A6s, A3s, KJs, K9s, K6s, Q7s, JTs, J8s, J2s, T5s, 87s, 65s, 53s, A9o, JTo, 86o
Always call
No hand plays this every time
Always raise 13.8bb
No hand plays this every time
Always all-in 100bb
No hand plays this every time
Mixed
TT+, 88, 66, 33-44, A9s+, A7s, A4s-A5s, A2s, KQs, KTs, K7s-K8s, K3s-K5s, Q9s+, J9s, T9s, T7s, 97s+, 85s, 75s+, 63s-64s, 54s, 43s, AKo, ATo
Settings: 4-max · 100bb · SB 0.5bb · 5% rake, cap 3bb (small blind 0.5bb, big blind 1bb, 100bb stacks, 5% rake capped at 3bb; before the flop, rake only after a 3-bet). Solver: HoldemResources Calculator (HRC) (HRC CI 20.31). 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: GGPoker regular cash NL50 (rake cap 6bb there, 3bb here).

Close: GGPoker regular cash NL100 (rake cap 3.75bb there, 3bb here).

Close: GGPoker regular cash NL200 (rake cap 2.25bb there, 3bb here).

Close: PokerStars cash NL50 (rake cap 1.5bb there, 3bb here; no rake when no flop is dealt there).

Close: CoinPoker cash NL2, NL10 (rake cap 6bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL50 (rake cap 4.8bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL100 (only its tables without antes).

Close: CoinPoker cash NL200 (rake cap 1.8bb there, 3bb here; only its tables without antes).

Close: WPT Global cash NL10, NL20 (4% rake there, 5% here; no rake when no flop is dealt there; only its tables without antes).

Close: WPT Global cash NL100, NL200 (rake cap 2bb 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 NL50 (rake cap 6bb there, 3bb here).

Close: Natural8 regular cash NL100 (rake cap 3.75bb there, 3bb here).

Close: Natural8 regular cash NL200 (rake cap 2.25bb there, 3bb here).

Close: ACR Poker cash NL50 (rake cap 4bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL100 (rake cap 2bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

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); pokerstars.com/poker/room/rake (fetched 2026-10-31); 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); acrpoker.eu/real-money/poker-rake-calculation/ (fetched 2026-10-31).

Rake: Wrong rake for GG: this solve caps the rake at 3bb, but GG caps NL200 at $4.50 (2.25bb) with 4 players dealt in and $3 (1.5bb) with 3. A solve with GG's caps is queued.