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Riichi Book 1: Difference between revisions
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When judging blocks, the most important thing is the # of tiles that can complete it. | When judging blocks, the most important thing is the # of tiles that can complete it. | ||
Sequences are easier to complete than triplets, as sequences have more tiles that can complete them. Of the incomplete tile groups, [[ryanmen]] is the strongest, as it has the most tiles that can complete it. The other types of joints can be judged on how easy it is to upgrade into ryanmen (the more ryanmen upgrades, the better). | Sequences are easier to complete than triplets, as sequences have more tiles that can complete them. Of the incomplete tile groups, [[ryanmen]] is the strongest, as it has the most tiles that can complete it. The other types of joints can be judged on how easy it is to upgrade into ryanmen (the more ryanmen upgrades, the better). In general, shanpon with 2 pairs > kanchan > penchan. | ||
===Tile versatility=== | ===Tile versatility=== | ||
{{#mjt:123456789m}} | {{#mjt:123456789m}} | ||
Certain tiles are more versatile than others. | Certain tiles are more versatile than others. Tiles closer to the terminals have fewer tiles that can help improve the shape: | ||
* Tiles 3-7 each can form joints using four tile types. | * Tiles 3-7 each can form joints using four tile types, and ryanmen with two types. | ||
* Tiles 2 and 8 can form joints using three tile types. | * Tiles 2 and 8 can form joints using three tile types, and ryanmen with one type. | ||
* Tiles 1 and 9 can form joints using only two tile types. | * Tiles 1 and 9 can form joints using only two tile types, and cannot form ryanmen. | ||
* Honors cannot form joints. | * Honors cannot form joints. | ||
Therefore, when tiles are not already part of a block, prefer 3-7 tiles | Therefore, when tiles are not already part of a block, prefer keeping 3-7 tiles over 2/8 tiles over 1/9 tiles. | ||
===Pairs=== | ===Pairs=== | ||