PokerSolver
PokerSolver/6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs UTG open 3bb

BB vs UTG open 3bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · UTG opens 3bb · Big blind to act

6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 5.46bbYour cards?
1bb
3bb
0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 73.4%Call 17.2%Raise 6/9bb 9.4%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when UTG opens 3bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

UTG opens 3bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the big blind (BB) folds 73.4%, calls 17.2% and raises 6/9bb 9.4%. Always call: 22-88, A8s-AJs, A5s-A6s, A3s, K6s+, QTs+, J8s+, T8s+, 97s+, 86s+, 75s+, 65s, 53s+, KJo+. Always raise 6/9bb: 99+, AQs+, K5s, Q9s, AKo, A9o. Mixed: A7s, A4s, A2s, K4s, Q6s-Q8s, J7s, T7s, 96s, 64s, ATo-AQo, KTo, QTo+.

Always fold
K2s-K3s, Q2s-Q5s, J2s-J6s, T2s-T6s, 92s-95s, 82s-85s, 72s-74s, 62s-63s, 52s, 42s+, 32s, A2o-A8o, K2o-K9o, Q2o-Q9o, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
22-88, A8s-AJs, A5s-A6s, A3s, K6s+, QTs+, J8s+, T8s+, 97s+, 86s+, 75s+, 65s, 53s+, KJo+
Always raise 6/9bb
99+, AQs+, K5s, Q9s, AKo, A9o
Mixed
A7s, A4s, A2s, K4s, Q6s-Q8s, J7s, T7s, 96s, 64s, ATo-AQo, KTo, QTo+
Settings: 6-max · 40bb · 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, 40bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.93). 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: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: 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.