Score table memorization: Difference between revisions

Score table memorization (view source)

Revision as of 07:18, 24 October 2024

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 {{Main|Fu}}
 All hands start with a base of 20 fu. Then, a hand may increase fu by:
-*Having [[triplet]]s and/or [[kan]] calls
+*Having [[triplet]]s and/or [[kan]] calls.
 *Having a [[kanchan]], [[penchan]], or [[tanki]] wait
 *Having a pair of [[yakuhai]].
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 ===Tsumo vs ron ===
-The total points gained from a tsumo is identical, or nearly identical, to the points from ron. When a non-dealer wins by tsumo, the dealer pays ~50% of the points, and the other players pay ~25% of the points. When a dealer wins by tsumo, the other players split points equally.
+The total points gained from a tsumo is (nearly) identical to the points from ron. When a non-dealer wins by tsumo, the dealer pays ~50% of the points, and the other players pay ~25% of the points. When a dealer wins by tsumo, the other players split points equally.
-Most differences between tsumo and ron come from rounding. For example, a 1 han 30 fu ron is worth 1000 points. If you split that number by 50% dealer/25% non-dealer, then the dealer would pay 500 points and both non-dealers would pay 250 points. Points in mahjong are always rounded to the hundreds place, so 250 is rounded up to 300. Therefore, a 1 han 30 fu tsumo earns 500/300 (500 + 300 + 300), or 1100 points.
+Any differences between tsumo and ron come from rounding. For example, a 1 han 30 fu ron is worth 1000 points. Without rounding, this would be split into 500 dealer / 250 non-dealer. Points in riichi mahjong are always rounded to the hundreds place, so for non-dealers 250 is rounded up to 300. Therefore, a 1 han 30 fu tsumo earns 500/300 (500 + 300 + 300), or 1100 points.
 === +1 han = doubled fu ===
-When a hand gains +1 han, it is equivalent to doubling the hand's fu. (This does not apply for mangan+ hands.)
+When a hand gains +1 han, it is exactly equivalent to doubling the hand's fu. (This does not apply once a hand reaches mangan.)
 *1 han 40 fu = 2 han 20 fu
 *1 han 80 fu = 2 han 40 fu = 3 han 20 fu
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 *3 han 50 fu = 4 han 25 fu
-Therefore, you can multiply fu by 2, then subtract 1 han, and end up with the same score value. You can also add 1 han, then divide fu by 2, and end up with the same score. This means by memorizing the 30 fu values, you will also memorize the 60 fu values. By memorizing the 25 fu values, you will also memorize the 50 fu values.
+Therefore, if you multiply fu by 2, then subtract 1 han, you'll end up with the same score value. Likewise, you can add 1 han, then divide fu by 2, and end up with the same score. This means by memorizing the 30 fu values, you will also memorize the 60 fu values. By memorizing the 25 fu values, you will also memorize the 50 fu values.
-By proxy, this means that when a hand gains +1 han (without changing fu), it roughly doubles in point value. Due to rounding, a hand may not ''exactly'' double in value, but will be close to double.
+By proxy, this means that when a hand gains +1 han (without changing fu), it roughly doubles in point value. Due to rounding, a hand may not ''exactly'' double in value, but it will be close to double.
 ==Memorizing common values==
-Due to the size of the scoring table, it is important to know the most common values first. Knowing the (1-4 han) + (20, 25, 30, 40) fu hands, as well as mangan+ hands, are the most important.
+It is important to know the most common values first. Memorize the values for (1-4 han) + (20, 25, 30, 40) fu hands, as well as mangan+ hands, first, since they are far more common than anything else.
 === Mangan and more ===