How to play 42s preflop
Heads-up · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb · 31 spots where 42s gets a decision
Opens (raise first in)
| Spot | 42s |
|---|---|
| SB open (RFI) First to act | Raise 2/2.5/3bb 57.8% · Call 42.2% |
Facing an open or a limp
| Spot | 42s |
|---|---|
| BB vs SB limp SB limps | Raise 2/2.5/3bb 81.6% · Call 18.4% |
| BB vs SB open 2bb SB opens 2bb | Raise 4/6bb 58.8% · Call 41.2% · Fold 0.1% |
| BB vs SB open 2.5bb SB opens 2.5bb | Call 72.9% · Raise 5/7.5bb 25.4% · Fold 1.7% |
| BB vs SB open 3bb SB opens 3bb | Fold 100% |
Facing an isolation raise
| Spot | 42s |
|---|---|
| SB vs BB iso raise 2bb SB limps, BB isolates to 2bb | Call 92.8% · Raise 4/6bb 6.4% · Fold 0.8% |
| SB vs BB iso raise 2.5bb SB limps, BB isolates to 2.5bb | Call 100% |
| SB vs BB iso raise 3bb SB limps, BB isolates to 3bb | Call 100% |
Facing a 3-bet
| Spot | 42s |
|---|---|
| BB vs SB 3-bet 5bb SB limps, BB isolates to 2.5bb, SB 3-bets to 5bb | Fold 76% · Call 22.9% · Raise 11.5bb 1.1% |
| BB vs SB 3-bet 7.5bb SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb | Fold 99.9% · Call 0.1% |
| BB vs SB 3-bet 6bb SB limps, BB isolates to 3bb, SB 3-bets to 6bb | Fold 50.9% · Call 49.1% |
| BB vs SB 3-bet 9bb SB limps, BB isolates to 3bb, SB 3-bets to 9bb | Fold 100% |
| SB vs BB 3-bet 4bb SB opens 2bb, BB 3-bets to 4bb | Call 98% · Fold 2% |
| SB vs BB 3-bet 6bb SB opens 2bb, BB 3-bets to 6bb | Call 97.7% · Fold 2.3% |
| SB vs BB 3-bet 5bb SB opens 2.5bb, BB 3-bets to 5bb | Call 99% · Fold 0.9% · Raise 11.5bb 0.1% |
| SB vs BB 3-bet 7.5bb SB opens 2.5bb, BB 3-bets to 7.5bb | Call 99.1% · Fold 0.9% |
| SB vs BB 3-bet 6bb SB opens 3bb, BB 3-bets to 6bb | Call 97.8% · Raise 13.8bb 2.1% · Fold 0.2% |
| SB vs BB 3-bet 9bb SB opens 3bb, BB 3-bets to 9bb | Call 92.3% · Fold 7.7% |
Facing a 4-bet
| Spot | 42s |
|---|---|
| SB vs BB 4-bet 9.2bb SB limps, BB isolates to 2bb, SB 3-bets to 4bb, BB 4-bets to 9.2bb | Fold 50.2% · Call 49.8% |
| SB vs BB all-in SB limps, BB isolates to 2bb, SB 3-bets to 4bb, BB goes all-in | Fold 100% |
| SB vs BB 4-bet 13.8bb SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb | Call 65% · Fold 34.8% · All-in 59.84bb 0.3% |
| SB vs BB all-in SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB goes all-in | Fold 99.6% · Call 0.4% |
| BB vs SB 4-bet 9.2bb SB opens 2bb, BB 3-bets to 4bb, SB 4-bets to 9.2bb | Fold 100% |
| BB vs SB all-in SB opens 2bb, BB 3-bets to 4bb, SB goes all-in | Fold 100% |
| BB vs SB 4-bet 13.8bb SB opens 2bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb | Fold 100% |
| BB vs SB all-in SB opens 2bb, BB 3-bets to 6bb, SB goes all-in | Fold 96.8% · Call 3.2% |
| BB vs SB 4-bet 11.5bb SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb | Fold 100% |
| BB vs SB all-in SB opens 2.5bb, BB 3-bets to 5bb, SB goes all-in | Fold 100% |
| BB vs SB 4-bet 17.25bb SB opens 2.5bb, BB 3-bets to 7.5bb, SB 4-bets to 17.25bb | Fold 100% |
| BB vs SB all-in SB opens 2.5bb, BB 3-bets to 7.5bb, SB goes all-in | Fold 100% |
Facing a 5-bet or shove
| Spot | 42s |
|---|---|
| BB vs SB all-in SB limps, BB isolates to 2.5bb, SB 3-bets to 5bb, BB 4-bets to 11.5bb, SB goes all-in | Fold 100% |
Settings: Heads-up · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 60bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.73). 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.