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'''Tonpuusen''' {{kana|東風戦}} consists of a game that ends after the east round. A full [[hanchan]] of the game may take a long time, anywhere between one hour to an hour and a half even among fast players.  An east round only game may naturally cut the duration in half.  While a full hanchan may extend into the overtime west round if necessary, the south round in this case works in the same manner.
'''Tonpuusen''' {{kana|東風戦}} consists of a game that ends after the [[Ba|east round]]. If the goal score is not met by the end of East 4, [[Enchousen|overtime]] happens in the South round.  


==Strategy differences compared to hanchan==
==Strategy differences compared to hanchan==
Under hanchan, players have the opportunity to be oya (dealer) twice. In tonpuusen, however, that is not the case. Everyone has the chance to be dealer only once.
In riichi mahjong, a [[hanchan]] - a game consisting of two wind rounds - is the standard game length. In tonpuusen, the game is around half as long, which changes the strategy.
 
* Fast hands are relatively more powerful. In tonpuusen, when you win a cheap hand, you "wasted" 25% of the game. In a hanchan, you "wasted" only 12.5% of the game.
* Dealer [[tsumo]] payments and [[ryuukyoku]] tenpai settlements are more impactful. Less points are exchanged per game, so tsumo's and tenpai settlements are worth relatively more.
* Dealing in is more dangerous. If you deal into a [[mangan]], you have less chances to come back.
 
That being said, tonpuusen is not a radically different game. Many of the tips listed above will also apply to the South round of a hanchan. (For example, when you have relatively equal points to another player in South 2 of a hanchan, you'll want to win fast hands and not deal in.)


==External links==
==External links==

Revision as of 03:18, 14 April 2024

Tonpuusen 「東風戦」 consists of a game that ends after the east round. If the goal score is not met by the end of East 4, overtime happens in the South round.

Strategy differences compared to hanchan

In riichi mahjong, a hanchan - a game consisting of two wind rounds - is the standard game length. In tonpuusen, the game is around half as long, which changes the strategy.

  • Fast hands are relatively more powerful. In tonpuusen, when you win a cheap hand, you "wasted" 25% of the game. In a hanchan, you "wasted" only 12.5% of the game.
  • Dealer tsumo payments and ryuukyoku tenpai settlements are more impactful. Less points are exchanged per game, so tsumo's and tenpai settlements are worth relatively more.
  • Dealing in is more dangerous. If you deal into a mangan, you have less chances to come back.

That being said, tonpuusen is not a radically different game. Many of the tips listed above will also apply to the South round of a hanchan. (For example, when you have relatively equal points to another player in South 2 of a hanchan, you'll want to win fast hands and not deal in.)

External links

Tonpuusen in Japanese Wikipedia