PokerSolver/4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB 3-bet 4bb

BB vs SB 3-bet 4bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · BTN opens 2bb, SB 3-bets to 4bb · Big 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 · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 7.64bbYour cards?

1bb

2bb

4bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 83.7%Call 8.5%Raise 9.2bb 5.9%All-in 99.84bb 1.9%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN opens 2bb, SB 3-bets to 4bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

BTN opens 2bb, SB 3-bets to 4bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 83.7%, calls 8.5%, raises 9.2bb 5.9% and goes all-in 99.84bb 1.9%. Always call: 66, 33. Always raise 9.2bb: AA. Mixed: 77-KK, 44-55, 22, A5s+, A2s-A3s, KTs+, K6s-K8s, K2s-K3s, Q9s+, JTs, J6s, J2s, T8s, T3s, 98s, 96s, 94s, 92s, 74s+, 64s, 54s, AJo+, A9o, KJo+, QTo.

Always fold: A4s, K9s, K4s-K5s, Q2s-Q8s, J7s-J9s, J3s-J5s, T9s, T4s-T7s, T2s, 97s, 95s, 93s, 82s+, 72s-73s, 65s, 62s-63s, 52s-53s, 42s+, 32s, ATo, A2o-A8o, K2o-KTo, QJo, Q2o-Q9o, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: 66, 33
Always raise 9.2bb: AA
Always all-in 99.84bb: No hand plays this every time
Mixed: 77-KK, 44-55, 22, A5s+, A2s-A3s, KTs+, K6s-K8s, K2s-K3s, Q9s+, JTs, J6s, J2s, T8s, T3s, 98s, 96s, 94s, 92s, 74s+, 64s, 54s, AJo+, A9o, KJo+, QTo

Settings: 4-max · 100bb · 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, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.