Kalkulator Big O (PLO 5-Kad Hi-Lo) - Percuma

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Big O (5-Card PLO Hi-Lo) Complete Guide

Big O is a 5-card Pot Limit Omaha Hi-Lo game. The fifth card creates a 66% increase in hand combinations compared to PLO8, fundamentally changing strategy. With 10 possible two-card combinations (vs. 6 in PLO8), average winning hand strength is significantly higher.

Must Use Two + Split PotYou receive 5 hole cards but must use exactly 2 from your hand and 3 from the board. The pot splits between best High and qualifying Low. You can use different card combinations for High and Low.

8-or-Better LowA Low hand only qualifies with 5 unpaired cards ranked 8 or lower. Ace plays as lowest (1). If no Low is possible, High scoops the entire pot. The 'Wheel' (A-2-3-4-5) is both the Nut Low and a strong High straight.

Scooping vs QuarteringScooping (winning both High and Low) is the primary goal. Getting 'Quartered' (tie for Low, lose High = 25% of pot) is a disaster. In Big O, with 5 cards each, quartering risk is even higher than PLO8.

Big O vs PLO8: Key Differences

Nut Inflation

In PLO8, top two pair might win. In Big O, sets are the minimum—often you need full houses or nut flushes. For Lows, naked A-2 gets quartered easily; protected Lows (A-2-3) are essential.

Variance Paradox

Despite seeming wilder, Big O can have lower variance for skilled players. Pre-flop equities run closer together, and bluffing is less effective since opponents likely 'have it' with 5 cards.

Dangler Death

A 'Dangler' is a useless 5th card (e.g., A-2-K-K-9 where 9 doesn't connect). In PLO8, you can hide a bad card. In Big O, every card must work together—danglers are devastating.

Starting Hand Tiers

Tier 1: Premium Scoop Monsters

Hands where all 5 cards interact perfectly to win both High and Low. These are raising hands from any position.

Tier 2: Strong Multi-way Hands

Solid hands for big pots but lacking absolute perfection. Play these in position or multi-way pots. Note: Bare A-A with poor side cards is dangerous in Big O.

Trap Hands to Avoid

Beginners lose the most with these. Naked A-2 (no backup) gets counterfeited. Middle rundowns can't make Nut Low. Non-nut Highs are expensive second-best.

Post-Flop Tips

Counterfeiting

When a board card pairs your Low card (e.g., you have A-2, board shows 2), your Low is ruined. Solution: Play hands with backups like A-2-3.

Open-Limping

Unlike Hold'em, limping can be valid in Big O—it keeps pots small with drawing hands and invites profitable multi-way action.

Fold the Second Nut

With 5 cards per player, someone likely has the absolute nuts. K-high flush or non-nut straights facing heavy action should fold.

Core Strategy Principles

1. Prioritize Scoop: Never play for just half the pot. 2. Respect the 5th Card: Assume opponents are stronger than in PLO8. 3. Avoid Danglers: Don't play 4-card hands in a 5-card game. 4. Fold Second Best: In a game of nuts, second nuts is the first loser. 5. Backup Your Lows: A-2-3 beats A-2 when the board counterfeits.

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