What is Furiten?
Furiten (振聴) is a state in mahjong where you cannot ron (win by discard) on tiles you have previously discarded or passed on. In furiten state, you cannot win by ron from other players’ discards, but you can still win by tsumo (self-draw). This is an important rule to maintain fairness in mahjong.
The term “furiten” combines “furi” (discard) and “ten” (tenpai), expressing a state where you’ve essentially discarded your own winning tile.
Detailed Explanation of Furiten
Three Types of Furiten
| Type | Condition | Duration | How to Clear |
|---|---|---|---|
| Discard Furiten | Your winning tile is in your discards | Permanent | Cannot clear |
| Same-Turn Furiten | Passed on winning tile same turn | 1 turn | Cleared on your draw |
| Post-Riichi Furiten | Passed on winning tile after riichi | Until end | Cannot clear |
Discard Furiten Details
When your discard pile contains a winning tile:
- Cannot ron on that tile
- Cannot ron on ANY of your waits
- Tsumo win is still possible
- Furiten continues even if you change waits
Same-Turn Furiten Details
When you pass on a winning tile in the same turn:
1. Instantly becomes furiten
2. Cannot ron on others' discards
3. Cleared when it's your turn to draw
4. Cleared even if you discard drawn tile immediately
Usage Examples
Real Game Situations
Example 1: Confirming Furiten
"I'm furiten so I can't ron"
"That tile is in my discards, so I'm furiten"
Example 2: Same-Turn Furiten
"Just passed on that, so same-turn furiten"
"Will be cleared on my next draw"
Example 3: Post-Riichi Furiten
"Passed after riichi, so I'm furiten now"
"Can only win by tsumo now"
Related Terms
- Ron: Winning on opponent’s discard
- Tsumo: Winning by self-draw
- Riichi: Tenpai declaration
- Tenpai: One tile away from winning
- Kawa: Discard pile
Common Mistakes and Points to Note
Points Beginners Often Mistake
-
All Waits Become Furiten
- Even one winning tile in discards means all waits can’t ron
- Same for multi-wait hands
-
Tsumo is Still Possible
- Furiten only blocks ron
- Self-draw wins are OK
-
Changing Waits Doesn’t Help
- Once furiten, can’t be cleared
- Changing hand shape doesn’t help
-
Passing After Riichi
- Immediately becomes furiten
- Continues until end of hand
Furiten Examples
Discard Furiten Example
| Hand | Wait | Discard Status | Result |
|---|---|---|---|
| 123m 456p 789s 12m | 3m | 3m in discards | Furiten |
| 234p 567p 11s 456m | 14p | 1p in discards | Furiten |
| Pair hand waiting 13m | 13m | 1m in discards | Furiten |
Same-Turn Furiten Example
Situation: Tenpai with 234p (14p wait)
1. Player to left discards 1p → Pass
2. Player across discards 4p → Can't ron (same-turn furiten)
3. Your turn to draw → Furiten cleared
How to Avoid Furiten
Basic Prevention
| Method | Explanation | Effect |
|---|---|---|
| Check discards | Always check your discard pile | Prevent discard furiten |
| Choose waits | Pick waits not in your discards | Improve win rate |
| Don’t pass | Always ron when in tenpai | Prevent same-turn furiten |
| Careful riichi | Avoid furiten riichi | Prevent wasted riichi |
Strategic Handling
1. When in furiten tenpai:
- Aim for tsumo win
- Stay dama and observe
- Rebuild hand for different wait
2. Deciding whether to riichi:
- Avoid if furiten
- Calculate tsumo expected value
- Consider point situation
Furiten Strategy
Playing with Furiten
| Situation | Recommended Action | Reason |
|---|---|---|
| Early furiten tenpai | Rebuild hand | Low win rate |
| Late furiten tenpai | Go for tsumo | No time to rebuild |
| High-value furiten | Push for tsumo | High reward |
| Low-value furiten | Fold | High risk |
Furiten Riichi - Yes or No?
When to declare furiten riichi:
1. High tsumo expected value
2. Pressure on opponents
3. Ippatsu and uradora possibility
4. Block opponent riichi chase
When to avoid:
1. Few tiles left in wall
2. Points not needed
3. Someone else likely to win
Advantages and Disadvantages of Furiten
Advantages (Strategic Use)
1. Safe tile guarantee
- Furiten tiles are absolutely safe
- Use for defense
2. Pressure on opponents
- Furiten riichi creates pressure
- May stop opponents from winning
3. Hand reading material
- Deduce hands from discards
- Use for strategy planning
Disadvantages
- Cannot win by ron
- Win rate drops significantly
- Riichi value decreases
- Point efficiency suffers
Common Furiten Troubles
Frequent Issues
-
Declaring Furiten Ron
- Results in chombo (penalty)
- Subject to penalty points
-
Missing Furiten Status
- Common among beginners
- Need habit of checking
-
Rule Misunderstanding
- Regional variations exist
- Confirm rules beforehand
Conclusion
Furiten is a state where you cannot ron on tiles you’ve discarded or passed on, an important rule maintaining mahjong fairness. There are three types: discard furiten, same-turn furiten, and post-riichi furiten, each with different conditions and durations. Beginners should develop the habit of always checking their discards and not passing on winning tiles. Since tsumo is still possible even in furiten, appropriate judgment based on the situation can minimize furiten’s disadvantages.