Mậu Binh Rules - Complete Guide 🎴#

Quick Answer#

What is Mậu Binh? Mậu Binh (also called Chinese Poker or Binh Xập Xám) is a strategy game where each player arranges 13 cards into 3 hands.

How long does a round take? About 3-8 minutes.

How many players? 2-4 players (best with 4).

Main objective? Arrange cards into a valid 3-5-5 structure and win more hands (chi) than opponents.

Most important rule? Your hand strength must be Back (5 cards) > Middle (5 cards) > Front (3 cards). If not, you are fouled (Binh Lủng, also called misset).

Overview#

Mậu Binh is one of the most logic-heavy Vietnamese card games. There is no betting round during play and no bluffing mechanics. Everyone receives 13 cards, then arranges them into three hands and compares each hand with opponents.

This guide covers the standard 13-card Mậu Binh / Binh Xập Xám format.

Quick Facts#

• Players: 2-4 (optimal: 4)
• Deck: Standard 52-card deck (no jokers)
• Duration: 3-8 minutes per round
• Difficulty: Intermediate to advanced
• Core format: 13 cards arranged into 3 hands (3-5-5)

Hand Structure (3-5-5)#

Each player must split 13 cards into:

1. Front hand (Chi Đầu): 3 cards (a three-card-hand) — weakest
2. Middle hand (Chi Giữa): 5 cards — medium
3. Back hand (Chi Cuối): 5 cards — strongest

Validation rule: Back > Middle > Front

If your ordering is invalid, you commit Binh Lủng (foul hand) and lose automatically for that round under most table rules. Getting Sập Hầm (losing all three hands to one player) results in doubled penalties.

Hand Rankings#

For 5-card hands (Middle and Back)#

From low to high:

1. High Card
2. Pair
3. Two Pair
4. Three of a Kind
5. Straight
6. Flush
7. Full House
8. Four of a Kind
9. Straight Flush

For 3-card hand (Front)#

From low to high:

1. High Card
2. Pair
3. Three of a Kind

Round Flow#

1. Deal: Each player receives 13 cards.
2. Arrange: Players split into Front/Middle/Back hands.
3. Reveal: All hands are opened.
4. Compare by position:
   • Front vs Front
   • Middle vs Middle
   • Back vs Back
5. Score: Win/loss is counted per hand (chi), with optional table bonuses.

Scoring Basics#

A common scoring model:

• Win 1 hand: +1 chi
• Lose 1 hand: -1 chi
• Sweep all 3 hands vs one opponent: bonus (varies by table)

Special bonus patterns (house-dependent, sometimes grouped as royalty bonuses) may include:

• Four of a Kind in a 5-card hand
• Straight Flush in a 5-card hand
• Three of a Kind in Front hand

Always confirm local table scoring before starting.

Instant Win Patterns (Tới Trắng)#

Many tables use instant-win patterns. Common examples include:

• Dragon straight (13-card straight)
• Six pairs + one single
• Special full-structure premium hands

Exact pattern list and payout differ by platform/region. Confirm rule set before play.

Etiquette#

Mậu Binh is a quiet, contemplative game that rewards careful analysis over quick reflexes. Because there are no betting rounds and no bluffing, the social atmosphere at a Mậu Binh table is typically calm and focused. Players should respect this atmosphere by avoiding unnecessary distractions, loud conversations, or commentary while others are arranging their hands.

The arrangement phase is the heart of Mậu Binh, and players should be given adequate time to organize their 13 cards. Rushing someone who is thinking through their hand placement is considered rude, especially since a misarranged hand (Binh Lủng / foul) results in automatic loss. If a player accidentally fouls their hand, the table should handle it graciously -- in casual games, some groups allow a brief correction window, while competitive play enforces the penalty strictly.

When revealing hands, players should open all three hands simultaneously and clearly so that comparisons can be made fairly. It is poor form to reveal hands one at a time in a way that creates suspense or pressure, as Mậu Binh is about honest comparison rather than dramatic reveals. Scorekeeping should be transparent, and any disputes about hand strength should be resolved by consulting the standard rankings rather than arguing.

Table Manners#

• Keep your 13 cards flat on the table or held neatly in your hand during arrangement; do not wave them around or gesture with them.
• Arrange your three hands face-down until all players signal they are ready to reveal, then open them together.
• Do not look at or comment on another player's arrangement before all hands are revealed.
• When scoring, announce results clearly and wait for acknowledgment from opponents before moving to the next round.
• Handle winning and losing with equal composure; Mậu Binh rewards steady play over emotional reactions.

Sportsmanship#

• If you notice an opponent has accidentally fouled their hand in a casual game, discreetly let them know before reveal rather than waiting to claim an easy win.
• Celebrate royalty hands and special wins modestly -- luck plays a significant role in which 13 cards you receive.
• Never pressure opponents to hurry their arrangement; a thoughtful player is not a slow player.
• In multi-round sessions, maintain consistent focus and effort even when behind in score.

Common Mistakes#

1. Wrong order (Binh Lủng): Middle accidentally stronger than Back.
2. Overloading Front: Putting too much strength in 3-card Front and weakening total EV.
3. Ignoring opponent style: Not adjusting arrangement vs aggressive bonus-chasing opponents.

Example (Valid Arrangement)#

• Front (3): K♠ K♥ 7♦ (Pair)
• Middle (5): 5♣ 6♣ 7♣ 8♦ 9♥ (Straight)
• Back (5): A♠ A♥ A♦ Q♣ Q♦ (Full House)

Order is valid because: Full House > Straight > Pair.

Probabilities and Odds#

Mậu Binh is fundamentally a game of probability and arrangement. Understanding hand distributions helps you make optimal placement decisions.

Special Hand Probabilities (13 Cards from 52-Card Deck)#

Standard Hand Distribution#

When no special hand is dealt, here is the probability of receiving certain combinations across your 13 cards:

Arrangement Success Rates#

Winning All Three Hands (Sập/Thắng Trắng)#

Next Steps#

• 📊 Strategy Guide
• 🌏 Regional Variations
• ❓ FAQ

Last Updated: February 2026 Author: Card Games Academy Difficulty: ★★★☆☆ (Intermediate)