Kan strategy: Difference between revisions

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 [[Kan]] is a naturally risky action, due to the nature of [[kandora]]. When a player calls kan, any player - including the kan-declarer's opponents - may benefit from the kandora. Therefore, some assessment should be made when calling kan.
-== Offense ==
+This page will assume you are declaring closed kan / added kan, unless otherwise stated.
-Kan is usually an offensive move. The player gets an extra draw from the [[rinshanpai]] and chances for the kandora.  If the hand is tenpai, then the hand has a chance for [[rinshan kaihou]].
-Most importantly, if the kan-declaring player wins, then their opponents will not benefit from the kan dora. Therefore, if the player believes that they are likely to win the hand (e.g. reaching [[tenpai]] early, or [[iishanten]] very early), then kan is stronger than usual.
+== Assessing kan ==
+=== Advantages ===
+* Reveals an extra [[kandora]]. Players in [[riichi]] also benefit from kan uradora.
+* Gives an extra tile draw, with a chance for [[rinshan]] if in [[tenpai]].
+* Increases the hand's [[fu]].
-=== Riichi ===
+=== Disadvantages ===
+* Opponents can benefit from kandora if they win.
+* The kanned tiles cannot be discarded or used in the hand.
+* Reveals the called tiles in your hand.
+* An open kan will [[menzen|open your hand]].
+=== Kan during riichi ===
 {{main|Riichi|Kan#Restrictions}}
+When playing with real tiles, players in riichi must always be aware of whether a kan call can [[Kan#Restrictions|legally be called]]. Players using game software or online platforms do not need to be aware because the programs handle the situations for them.
+== Kan when likely to win ==
+Kan is an aggressive move. You only benefit from kan if you win. Conversely, if you win, your opponents cannot benefit from the kan dora. Therefore, prefer to kan when you believe you have a high chance of winning. For example, kan when you are already in [[tenpai]] (and no one else is in tenpai), and kan with a good 1-[[shanten]] hand if early in the game (turn <8).
+Players in [[riichi]] benefit from twice the dora (kandora + kan uradora), so a kan during riichi is especilly helpful.
+Conversely, if an opponent is in tenpai, you should ''not'' kan, unless desperate, or if you are also in tenpai. When you and an opponent are in tenpai, the decision to kan will depend mostly on point standing and your tenpai wait.
-Players in riichi benefit from twice the dora: a kan dora and a kan ura dora. Also, a player in riichi is already in tenpai, so they are more likely to win. In addition, the threat of kan dora will make your riichi more threatening, encouraging players to fold (folding players do not benefit from kan dora). Therefore, kan during riichi is particularly strong, assuming it is possible.
+== Situational analysis ==
+{{Main|Situational analysis}}
-If you are in riichi, but someone appears to be pushing against you, it becomes a more risky play. If you happen to be far ahead in the lead in this situation, consider not calling kan.
+Kandora increases the score of everyone's hand. Therefore, the decision to kan can change depending on the point standings and current round.
-When playing with real tiles, players must always be aware of whether a kan call can [[Kan#Restrictions|legally be called]]. Players using game software or online platforms do not need to be aware because the programs handle the situations for them.
+* Players far ahead in the lead should not kan. The extra points benefit your opponents more than you: extending your lead doesn't help you much, but your opponents can certainly use the points to [[gyakuten|surpass]] you.
+* Players that are behind when near the last round might be desperate to kan for the extra points.
 == Defense ==