Master Basic Discard Choices: Winning Hands and the Path to Riichi

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When you have just learned mahjong, you often wonder which tile to discard the moment you open your initial hand. Mastering the basics of what to cut helps you organize your hand and reach your goal smoothly on every turn.

The first step toward improvement is understanding the final completed hand you aim for across all your tiles, allowing you to let go of unnecessary tiles without hesitation.

Basic Winning Structure and Managing Isolated Tiles

萬萬萬萬西Hand
Figure 1: A hand containing an isolated 1 of characters and West
Figure 1 as text

Hand: 1m 3m 4m 5m 2p 3p 4p 8p 8p 6s 7s 8s West

Highlighted tiles: 1m, West

Notation: 1345m23488p678s3z

In this diagram, combinations of characters, circles, and bamboo begin to take shape in the hand, but the terminal 1 of characters and the honor tile West float as single isolated tiles. In mahjong, a win generally consists of 14 tiles made of 4 sets of 3 tiles each and 1 pair of 2 identical tiles. Discarding isolated tiles like the 1 of characters and West in the early turns, because they do not connect with others, is the fundamental approach to choosing discards.

To develop your hand efficiently, it helps to remember the types of sets and how easily they form.

Types and Characteristics of Sets
NameExampleFeatures
Sequence2, 3, 4 of charactersA 3-tile run of consecutive numbers in the same suit
Triplet5, 5, 5 of bambooA set of 3 identical tiles
Pair8, 8 of circlesThe pair formed by 2 identical tiles

Because middle suited tiles (3 through 7) easily make sequences, discarding terminal 1s and 9s or honor tiles that yield no yaku naturally broadens your tile acceptance.

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Reaching Tenpai with a Two-Sided Wait and Aiming for Riichi

In 4-player mahjong, games often take shorter formats such as an East-only game that ends after East 1 to East 4. Every format repeats initial deals through winning or a draw in each hand, so first learn how to aim for tenpai within a single hand.

萬萬Hand萬萬Waits
Figure 2: A hand in tenpai waiting on a two-sided 6 and 9 of characters
Figure 2 as text

Hand: 7m 8m 2p 3p 4p 5p 6p 7p 2s 3s 4s 8s 8s

Waits: 6m, 9m

Highlighted tiles: 7m, 8m

Notation: 78m234567p23488s

In this diagram, the hand has reached tenpai, needing only 1 tile to complete. With 7 and 8 of characters, either the 6 or 9 of characters completes a sequence, creating an ideal two-sided wait. When reaching tenpai with a closed hand without calling, you can deposit 1,000 points to declare riichi. Declaring riichi prevents changing your hand, but that alone grants the 1-han yaku of riichi.

Follow these steps as a beginner to aim steadily for a win:

  • After receiving your deal, discard isolated honor and terminal tiles that offer no yaku in the early turns.
  • Keep 2 consecutive suited tiles (such as 4 and 5 of circles) to increase candidate sets with two-sided waits.
  • Once in tenpai with a closed hand, declare riichi proactively to seek a win.

Declaring riichi with a closed hand grants the 1-han yaku riichi even without any other yaku, satisfying the win requirement before you memorize all yaku. Winning depends on whether your wait tile appears, but it remains a dependable tactic while learning hand-building.

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Calling Basics and the One-Han Minimum Rule

Mahjong allows calling to claim another player's discard to complete a set. While calling speeds up hand development, beginners must heed an essential rule.

萬萬Hand中中中Pon ↑萬Waits
Figure 3: A hand in tenpai waiting on the 5 of characters after a pon of Red Dragon
Figure 3 as text

Hand: 4m 6m 2p 3p 4p 9p 9p 6s 7s 8s

Pon (from across): Red Red Red

Waits: 5m

Highlighted tiles: 4m, 6m

Notation: 46m23499p678s pon 777z

In this diagram, 3 Red Dragons have been claimed with pon, leaving tenpai waiting on the 5 of characters. Japanese riichi mahjong requires a one-han minimum, meaning you cannot win without at least 1 yaku. Red Dragon is a yakuhai that yields a yaku with just 3 tiles, so you can still win after calling. However, calling chii or pon aimlessly without any yaku leaves you unable to win, even if your shape is complete.

Keep these fundamentals in mind whenever you consider calling:

  • Chii can form a sequence only from a discard made by the player on the left.
  • Pon can form a triplet from any player's discard by claiming the 3rd matching tile.
  • Winning with an open hand requires a yaku like yakuhai (White, Green, or Red Dragon) or All Simples using only 2 through 8.

Calling opens your hand, so you cannot use riichi. Until a yaku is certain, holding a closed hand without hasty calls remains the safer path.

Honing Discard Sense in Solo Games

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Until tile patterns and wait shapes become second nature, practicing where you can think at your own pace is ideal. In smartphone titles, playing alone against computer opponents with no time limits lets you ponder each cut thoroughly. The mahjong RPG Jankokushi lets you play solo against the computer without haste, making it great for practicing discard choices at your own tempo.

Whenever you hesitate over a discard in play, break down your hand into sets, pair, and remaining floating tiles. You will see which discard preserves connections and which tile links best with future draws.

Reviewing hand progression, cutting tiles in this natural priority order works best:

  1. Discard isolated honor tiles that offer no yaku.
  2. Discard terminal 1s and 9s that lack adjacent support.
  3. Discard extra tiles that failed to form sets, keeping two-sided waits to aim for riichi.

As you repeat matches, candidate discards will naturally come to mind just by looking at your starting hand. Take your time hand by hand and absorb basic winning structures.

Frequently asked questions

What should I do when I am unsure what to discard?

The basic rule is to let go of isolated honor tiles and terminals that offer no yaku first. Because suited tiles from 3 through 7 make sequences easily, cutting disconnected outer tiles first brings your hand together naturally.

Why am I unable to win after calling tiles?

Under the one-han minimum rule, you cannot win without at least 1 yaku. Calling prevents declaring riichi, so it is safer to keep a closed hand unless you have a yaku such as yakuhai or All Simples.

What is the benefit of declaring riichi?

When in tenpai with a closed hand, you gain the yaku of riichi even without other yaku. It requires putting out a 1,000-point deposit, but meeting the yaku requirement makes it a strong ally for beginners.

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Why not test your yaku and riichi across the land in the mahjong RPG Jankokushi alongside figures of the Three Kingdoms?

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