Defense: Difference between revisions

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{{main|Furiten|Genbutsu}}
{{main|Furiten|Genbutsu}}
The most important defense technique.  [[Genbutsu]] involves tiles deemed 100% safe per the rules applied.  Here, the [[furiten|furiten rule]] can be exploited.  Any tile that an opponent has discarded is 100% safe against them. The temporary furiten rule makes tiles discarded on the current go-around 100% safe against players who haven't had their turn after the discard. Furiten involving riichi marks the tiles after the riichi as 100% against the riichi caller, for any tiles unclaimed tiles by the same player.
The most important defense technique.  [[Genbutsu]] involves tiles deemed 100% safe per the rules applied.  Here, the [[furiten|furiten rule]] can be exploited.  Any tile that an opponent has discarded is 100% safe against them. The temporary furiten rule makes tiles discarded on the current go-around 100% safe against players who haven't had their turn after the discard. Furiten involving riichi marks the tiles after the riichi as 100% against the riichi caller, for any tiles unclaimed tiles by the same player.
===Sakigiri===
{{main|Sakigiri}}
'''Sakigiri''' is the task of discarding tiles, before they become dangerous.  With each tile draw and discard, the game's conditions are constantly changing.  Most of the time, players may possess winning tiles for other players in the hand.  They must either be used for the hand, discarded in time, or simply kept in the hand.


==Techniques to find safe tiles==
==Techniques to find safe tiles==
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{{main|Kabe}}
{{main|Kabe}}


A tactic similar to suji that uses "walls" formed by seeing all 4 of a tile to remove the possibility of ryanmen waits. For example, if you see all 4 of 6-man, no player can have a 56-man or 67-man shape, so a ryanmen waits for 7-man and 8-man are impossible. Like suji, other waits are still possible, but note that a 68-man wait for the 7-man is also blocked, making the 7-man safer than a 4-man discard suji. Kabe safety is comparable to suji safety, and should be used in similar fashion.
A tactic similar to suji that uses "walls" formed by seeing all 4 of a tile to remove the possibility of ryanmen waits. For example, if you see all 4 of 6-man, no player can have a 56-man or 67-man shape, so ryanmen waits for 7-man and 8-man are impossible. Like suji, other waits are still possible, but note that a 68-man wait for the 7-man is also blocked, making the 7-man safer than a 4-man discard suji. Kabe safety is comparable to suji safety, and should be used in similar fashion.


==The ways of defense and offense==
==The ways of defense and offense==
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'''Betaori''' focuses on discarding nothing but safe tiles.  In this state, a player has completely abandoned all hope of developing a winning hand; and instead, the hand is dedicated towards avoiding any threatening hands.  At times, even a player achieving a tenpai hand may need to completely break the tenpai for avoidance. The essence of betaori is to always discard the safest tile first. Suji tiles or even hell wait only honors shouldn't be discarded before any genbutsu tiles.
'''Betaori''' focuses on discarding nothing but safe tiles.  In this state, a player has completely abandoned all hope of developing a winning hand; and instead, the hand is dedicated towards avoiding any threatening hands.  At times, even a player achieving a tenpai hand may need to completely break the tenpai for avoidance. The essence of betaori is to always discard the safest tile first. Suji tiles or even hell wait only honors shouldn't be discarded before any genbutsu tiles.


===Uchi-mawashi===
===Mawashi uchi===
'''Uchi-mawashi''' is a half-way style where a player aims to discard fairly safe tiles while still aiming for tenpai. Discardable tiles include honors, suji tiles and no-chance kabe tiles. From this state a player may fall back to betaori upon drawing dangerous tiles, or attack when reaching tenpai. This style is not recommended for beginners, and should be used rarely. It is appropriate to use when in a good shape iishanten for a strong hand.
'''Mawashi uchi''' is a half-way style where a player aims to discard fairly safe tiles while still aiming for tenpai. Discardable tiles include honors, suji tiles and no-chance kabe tiles. From this state a player may fall back to betaori upon drawing dangerous tiles, or attack when reaching tenpai. This style is not recommended for beginners, and should be used rarely. It is appropriate to use when in a good shape iishanten for a strong hand.


===Kanzen shinko===
===Kanzen shinko===
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