PokerSolver/6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs BTN 3-bet 5bb

BB vs BTN 3-bet 5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO opens 2.5bb, BTN 3-bets to 5bb · 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

6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differUTGHJCOBTNSBBB

Pot 9.96bbYour cards?

1bb

2.5bb

5bb

0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 89.7%Call 7%Raise 11.5bb 1.5%All-in 249.84bb 1.8%

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

What is the GTO play for the big blind (BB) when CO opens 2.5bb, BTN 3-bets to 5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

CO opens 2.5bb, BTN 3-bets to 5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the big blind (BB) folds 89.7%, calls 7%, raises 11.5bb 1.5% and goes all-in 249.84bb 1.8%. Always call: JJ, A8s, QTs. Mixed: QQ+, 44-TT, A9s+, A2s-A7s, KTs+, K4s, QJs, JTs, 87s, AJo+, KQo.

Always fold: 22-33, K5s-K9s, K2s-K3s, Q2s-Q9s, J2s-J9s, T2s+, 92s+, 82s-86s, 72s+, 62s+, 52s+, 42s+, 32s, A2o-ATo, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: JJ, A8s, QTs
Always raise 11.5bb: No hand plays this every time
Always all-in 249.84bb: No hand plays this every time
Mixed: QQ+, 44-TT, A9s+, A2s-A7s, KTs+, K4s, QJs, JTs, 87s, AJo+, KQo

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.

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.