Mixed One Suit vs Full Flush: Which to Aim For
Two of the most important hands in Hong Kong Mahjong scoring are Mixed One Suit (混一色) at 3 faan and Full Flush (清一色) at 7 faan. They’re related (both involve focusing on a single suit), but they differ in difficulty, flexibility, and reward. Knowing when to aim for each is a fundamental strategic skill.
What Are They?
Mixed One Suit (混一色 / Wan Yat Sik): 3 Faan
A hand using tiles from one suit plus honor tiles (winds and/or dragons). This is the more flexible and common version.
Example: 1-2-3 Bamboo, 4-5-6 Bamboo, 7-8-9 Bamboo, East-East-East, pair of Red Dragons
Full Flush (清一色 / Ching Yat Sik): 7 Faan
A hand using tiles from one suit only (no honor tiles at all). This is the pure, more difficult, and much higher-scoring version.
Example: 1-2-3 Dots, 3-4-5 Dots, 5-6-7 Dots, 7-8-9 Dots, pair of 2-Dots
Side-by-Side Comparison
| Aspect | Mixed One Suit | Full Flush |
|---|---|---|
| Faan value | 3 | 7 |
| Tiles allowed | One suit + honors | One suit only |
| Flexibility | High | Low |
| Frequency | Common | Uncommon |
| Defensive risk | Moderate | High |
| Payout (approx.) | 8x base | 128x base |
| Difficulty | Medium | Hard |
When to Aim for Mixed One Suit
Mixed One Suit should be your default high-value strategy. It’s the most reliable way to reach the 3-faan minimum and build a competitive hand.
Ideal Starting Conditions
- 6+ tiles in one suit
- 2-3 honor tiles (especially matching winds or dragons)
- Few tiles in the other two suits (easy to discard them)
Why It Works
Mixed One Suit works because honor tiles give you flexibility, more options for forming sets, and because dragon pungs, wind pungs, and self-drawn bonuses all combine with it and stack. It’s also partially concealed, since you don’t need to reveal your entire strategy. And at 3 faan, it meets the minimum to win in most games (learn how faan scoring works).
Example Progression
Opening hand: 2B, 5B, 6B, 8B, 9B, East, East, South, 3D, 7D, 4C, Red, Red
Strategy: Keep Bamboo tiles, East pair, Red Dragon pair. Discard Dots and Characters. Aim for Mixed One Suit in Bamboo.
When to Aim for Full Flush
Full Flush is the high-risk, high-reward option. Aim for it when the conditions are clearly right.
Ideal Starting Conditions
- 8+ tiles in one suit (9 is ideal)
- Few or no honor tiles worth keeping
- The suit you have is spread across multiple numbers (giving sequence options)
Why It Pays Off
Full Flush is worth 7 faan on its own, enough to combine with almost anything and hit the faan limit. The payout is dramatic too: 128x base versus 8x for Mixed One Suit.
Why It’s Risky
It’s risky, though. The strategy is telegraphed, since opponents will notice you discarding two entire suits, and it’s inflexible: if key tiles in your suit are unavailable, you’re stuck. Good opponents will treat you as a defensive target and hold your suit tiles to block you, and with all your eggs in one basket, no honor tiles means no backup scoring elements if the flush falls through.
The Transition Strategy
One of the most valuable skills is knowing when to transition from Full Flush to Mixed One Suit (or vice versa).
Starting with Full Flush, Downgrading to Mixed
You begin pursuing Full Flush (one suit only), but partway through, you draw useful honor tiles or realize key suited tiles are unavailable.
Decision point: If you can’t see a clear path to Full Flush by the time you’ve drawn 6-8 tiles, consider switching to Mixed One Suit. Start keeping useful honor tiles instead of discarding them.
The “downgrade” from 7 faan to 3 faan might seem painful, but a completed 3-faan hand beats an incomplete 7-faan hand every time.
Starting with Mixed, Upgrading to Full
You begin with Mixed One Suit (one suit + honors), but your draws are heavily weighted toward the suit with few honors.
Decision point: If you find yourself with only 0-1 honor tiles and plenty of suited tiles, consider discarding the honors and going for Full Flush. This upgrade from 3 to 7 faan can be dramatic.
Common Combinations
These hands often appear alongside flush strategies:
| Combination | Total Faan |
|---|---|
| Mixed One Suit + Self-Drawn | 4 |
| Mixed One Suit + Dragon Pung | 4 |
| Mixed One Suit + All Pungs | 6 |
| Mixed One Suit + Seat Wind + Round Wind | 5 |
| Full Flush + Self-Drawn | 8 |
| Full Flush + All Pungs | 10 (limit!) |
| Full Flush + Any bonus | 8+ |
Note that Full Flush + All Pungs = 10 faan, which hits the limit in most games. This is one of the most achievable limit hands.
Defensive Considerations
If You’re Building a Flush
Be aware that your discards scream your strategy. When you dump 5 tiles from two suits, everyone knows you’re going for a flush. Expect opponents to:
- Hold tiles from your target suit
- Discard safely from your abandoned suits
- Play more defensively when you seem close
If You’re Defending Against a Flush
When an opponent is clearly building a flush, hold tiles from their target suit even if it hurts your own hand, discard from their abandoned suits since these are safe, and don’t discard honor tiles carelessly, since they might be going for Mixed One Suit.
Choosing Your Suit
When multiple suits seem viable, consider which suit has the most tiles in your hand (obviously), which suit’s tiles are least visible in discards (more available tiles mean better odds), whether there are useful honor tiles that pair with one suit (winds, dragons), and which suit’s gaps are easiest to fill: having 1-3-5-7-9 is harder to fill than 2-3-5-6-8.
FAQ
Can Mixed One Suit use any honor tiles?
Yes. Mixed One Suit allows any combination of honor tiles (winds and/or dragons) alongside tiles from one suit. There’s no restriction on which honor tiles you include.
Is Full Flush always better than Mixed One Suit?
In terms of faan, yes (7 vs 3). In terms of achievability, no. Full Flush is much harder to complete because you have fewer tile types to work with. A completed Mixed One Suit is infinitely better than an incomplete Full Flush.
What if my hand has two suits that are equally strong?
Pick one and commit early. The longer you hold tiles from two suits, the harder it becomes to complete either flush. Look at which suit has better sequence potential and which honor tiles complement it.
How often do Full Flush hands actually appear?
In casual play, a Full Flush appears roughly once every 50-100 hands. Mixed One Suit appears much more frequently, perhaps once every 10-15 hands. The rarity of Full Flush is part of what makes it exciting.
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