How a Mahjong Turn Works: Draw, Discard and Calls

In an ordinary Mahjong turn, draw a tile, consider your hand and discard a tile unless you can legally declare a win. A claimed discard can interrupt that rhythm. The important beginner habit is to identify which action starts your turn before reaching for the wall.

This walkthrough uses Mahjong Competition Rules (MCR), the Chinese competition rules described in the World Mahjong Organization's Green Book and linked by the European Mahjong Association. It is an introduction to turn order, not a complete scoring guide or a rulebook for every Chinese regional game. For other versions, start with our Chinese, American and Riichi comparison.

Start with an ordinary turn

Under MCR, play passes anticlockwise through East, South, West and North. After the opening deal and any required flower replacements, East already has the extra tile and begins by discarding, unless declaring a legal win. East does not take an additional ordinary draw first.

1. Wait for the preceding discard. Keep your hands away from the wall until it is your turn and any valid claim has been resolved.
2. Draw one tile. Look at what it changes: a useful group, a possible pair, or a tile you do not want to keep.
3. Discard one tile if you are not declaring a legal win. Leave it visible so the table can follow play.

For a hand with no kongs or bonus tiles, the useful counting check is 13 tiles between turns, 14 after drawing, then 13 after discarding. Count exposed groups as part of the hand. Kongs and flower replacements need their own counting and replacement procedures.

A worked example: South draws and discards

Try this as an open practice exercise, with the faces visible. Assume no flowers, kongs or intervening calls. South's 13 tiles are:

• Bamboo: 2, 3 and 9;
• Dots: 4, 5 and 6;
• Characters: 7, 8 and 9;
• Honours: two East Winds and two Red Dragons.

South draws 4 Bamboo. Place it beside 2 and 3 Bamboo so everyone can see the new sequence, then choose 9 Bamboo as the practice discard. South is back to 13 tiles. This example demonstrates the sequence of actions; it does not claim that this is always the strongest strategic discard or that the hand has won.

Ask the learner to explain three things before continuing: which tile arrived, which group became possible, and which tile left. If they can answer without recounting the entire table, move on to a second practice turn.

How chow, pung and kong change the turn

MCR discard claims at a glance

Call	Group formed	Next action
Chow / chi	Three consecutive numbers in one suit; claim only from the player to your left.	Expose the group and discard. No ordinary draw.
Pung / peng	Three identical tiles; the discard can come from any other player.	Expose the group and discard. No ordinary draw.
Melded kong	Four identical tiles, using a discard with three concealed copies.	Take the required replacement from the back of the wall, then discard unless winning.

Under MCR, a winning claim takes priority over chow, pung and kong; pung or kong takes priority over chow. A pair is not an ordinary exposed-set claim. A discard that completes the pair can be a winning tile only when the whole hand qualifies for a legal win.

Example: a pung interrupts the order

East discards 6 Dots. West holds two more 6 Dots and makes a valid pung claim, with no winning claim taking priority. South does not draw first. West exposes the three 6 Dots, makes a discard, and play proceeds to North unless another valid call intervenes.

Use four seat labels to practise this example. Move a small marker to the player whose action comes next. The marker is a teaching aid, not an additional game rule. It helps the group see why “everyone gets a draw in sequence” stops being true when a discard is claimed.

Four useful checks for a first lesson

• Separate a call from an ordinary draw. Rehearse each route on its own before combining them.
• Identify the tile by suit as well as number. “Six” alone is ambiguous when several suits are in play.
• Keep teaching discussions between practice actions. Open-hand explanations are a learning exercise, not tournament table procedure.
• Separate a complete shape from a legal win. Under MCR, the hand must also reach eight scoring points without flowers, and the final tile must be obtained legally. Our winning-hand tutorial shows how to check the structure and minimum before declaring Hu.

Common questions

Do I always draw before discarding?

No. Compare an ordinary turn with East's first discard and with a chow or pung claim in the examples above. A kong follows a replacement-draw procedure.

Can Winds make a chow?

No. Winds are honours, not a numbered suit. Use Mahjong Tiles Explained to practise distinguishing suits and honours before practising calls.

Does this teach American Mahjong or Riichi?

No. Those versions have their own call restrictions and winning requirements. Read the American Mahjong first-steps guide or the WRC Riichi rules for the relevant starting point.

Continue the lesson

Once you can follow the turn order, practise one complete MCR hand. Identify its four sets, pair and qualifying scoring feature, then explain which tile completed it.

Return to Mahjong 101 for the learning sequence, or check how to set up the table before dealing. If you are preparing a shared home set, use our family game-night buying checklist. You can also browse Mahjong tiles and sets and check each listing's contents separately.

Sources and teaching scope

Rule statements were checked against the World Mahjong Organization's Mahjong Competition Rules, hosted by the European Mahjong Association: sections 3.4, 3.5.7, 3.6 and 3.7, plus 3.9.1 and the false-Hu provisions in 3.11 for winning prerequisites. The practice hands and teaching suggestions above are original examples from Wind & Honour. Consult the full rules for concealed or added kongs, timing, replacement exceptions and scoring. See our editorial standards.