PokerSolver
PokerSolver/6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs CO iso raise 2.5bb

BB vs CO iso raise 2.5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · UTG limps, CO isolates to 2.5bb · Big blind to act

6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 5.96bbYour cards?
1bb
1bb
2.5bb
0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 81%Call 16.3%Raise 5/7.5bb 2.7%
Tap a hand, or type one above, to see its exact mix.

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

UTG limps, CO isolates to 2.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the big blind (BB) folds 81%, calls 16.3% and raises 5/7.5bb 2.7%. Always call: KK, 55, A8s, QTs, 98s, 76s, 54s, AJo+, KQo. Always raise 5/7.5bb: AQs. Mixed: AA, 66-QQ, 22-44, AKs, A9s-AJs, A2s-A7s, K7s+, K5s, K3s, QJs, Q8s-Q9s, J9s+, T7s+, 97s, 86s+, 75s, 65s, ATo, KTo, QJo.

Always fold
K6s, K4s, K2s, Q2s-Q7s, J2s-J8s, T2s-T6s, 92s-96s, 82s-85s, 72s-74s, 62s-64s, 52s-53s, 42s+, 32s, A2o-A9o, KJo, K2o-K9o, Q2o-QTo, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
KK, 55, A8s, QTs, 98s, 76s, 54s, AJo+, KQo
Always raise 5/7.5bb
AQs
Mixed
AA, 66-QQ, 22-44, AKs, A9s-AJs, A2s-A7s, K7s+, K5s, K3s, QJs, Q8s-Q9s, J9s+, T7s+, 97s, 86s+, 75s, 65s, ATo, KTo, QJo
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.

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.