Suukantsu: Difference between revisions

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'''Suukantsu''' {{kana|四槓子}} is a standard [[yakuman]], where the hand has collected [[kan]] four times.  As a result, this hand always has uses a [[Tanki|hadaka tanki machi]], because four [[naki|tile calls]] are required.  Of all the hands possible, suukantsu is the rarest.  Unlike all the other patterns, this yakuman cannot afford to have particular tiles unavailable via discards, the [[dead wall]], or used in other player's hands.
'''Suukantsu''' {{kana|四槓子}} is a standard [[yakuman]], where the hand has collected [[kan]] four times.  As a result, this hand always has uses a [[Tanki|hadaka tanki machi]], because four [[naki|tile calls]] are required.  Unlike all the other patterns, this yakuman cannot afford to have particular tiles unavailable via discards, the [[dead wall]], or used in other player's hands.  Of all the hands possible, suukantsu is the rarest.  It is even more rare than either [[Tenhou and chiihou|tenhou]] or [[Tenhou and chiihou|chiihou]].


==Tile pattern==
==Tile pattern==

Revision as of 00:21, 24 January 2015

Suukantsu
Type Yakuman
Kanji 四槓子
English Four kans
Value Yakuman
Speed Extremely slow
Difficulty The most difficult

Suukantsu 「四槓子」 is a standard yakuman, where the hand has collected kan four times. As a result, this hand always has uses a hadaka tanki machi, because four tile calls are required. Unlike all the other patterns, this yakuman cannot afford to have particular tiles unavailable via discards, the dead wall, or used in other player's hands. Of all the hands possible, suukantsu is the rarest. It is even more rare than either tenhou or chiihou.

Tile pattern

Agari:

Viability

This yakuman requires four kan calls. As a result, the hand in tenpai always uses hadaka tanki. In order to call a single kan, a player must draw at least 3 out of 4 of a single tile type under any of these three scenarios:

  • A player has a pair and calls pon. Then draws the fourth to call kan.
  • A player has a closed triplet and calls kan on a discarded fourth.
  • A player draws all four of a tile type and calls kan.

For this yakuman, a player must repeat any of those kan calls four times. This yakuman is the most difficult yakuman to attain tenpai, let alone score. If any of those tiles are rendered unavailable for kan, it forces the hand to seek other possible tiles to call kan with; or the hand is made virtually impossible.

Pitfalls

Suukantsu tenpai with an unescapable hadaka tanki situation.

The difficulty of this yakuman stems from the numerous pitfalls during its hand development. Any one of these scenarios can prevent this yakuman from completion.

  • Another player developing and winning with a faster and easier hand. This may be the case for any hand.
  • The winning tile is made unavailable, which again may be the case for any hand.
  • The player has called pon on a tile type, but the fourth tile was not available - either discarded earlier, drawn by another player, or in the dead wall.
  • The added kan to a previously called pon may be subject to chankan.
  • Another player has called kan. This prevents one player from calling kan four times.
  • Hadaka tanki may create a perilous situation, where the last remaining tile and drawn tile are dangerous tiles.

Value

Despite the greater degree of difficulty and exceptionally low freqency, the value remains as that of the other single yakuman.

External links

Suukantsu in Japanese Wikipedia