In Air Mahjong’s American game, you may call the latest natural discard to complete a permitted matching exposure of three or more tiles, or to complete your entire winning hand. You cannot collect a discard simply because it is useful. An ordinary call cannot make only a single or pair, and a discarded joker cannot be claimed.
The latest discard is 1 Bam. Your two 1 Bams can combine with it into a pung that fits Crosswind. You are not declaring a win yet: the red dragon pair is incomplete and 6 Bam does not fit.
Read the complete four-step walkthrough
1. Before the call: 13 in your rack. The latest discard is 1 Bam. Your two 1 Bams can combine with it into a pung that fits Crosswind. You are not declaring a win yet: the red dragon pair is incomplete and 6 Bam does not fit.
2. Call, then choose a discard: 11 in your rack + 3 exposed = 14. Call using your two 1 Bams. The new pung belongs to your hand even though it is visible on the table. Do not draw another tile. Discard the loose 6 Bam; the target still needs one red dragon.
3. After discarding 6 Bam: 10 in your rack + 3 exposed = 13. You are one tile short of Crosswind: another natural red dragon. A joker cannot finish this pair. Earlier discards cannot be retrieved.
4. A red dragon completes it: 11 in your rack + 3 exposed = 14. If you later draw the red dragon, declare Mah Jongg. If it is the latest discard, you may claim it for Mah Jongg because it completes the entire legal hand. That winning claim is different from an ordinary call just to make a pair.
Separate an exposure from a winning claim
An ordinary call takes the discard into a completed pung, kong, quint or sextet that fits an exposed line on the card. You show that group, then continue your turn and discard. A winning claim instead says that this tile completes the whole legal 14-tile recipe.
This distinction explains the pair exception. If a second red dragon would only complete your pair while other groups remain unfinished, you cannot call it for that purpose. If that same tile completes every requirement of your winning hand, you may declare the win.
Work through the Air Mahjong lesson
The prepared calling example gives you two 1 bamboo while another player discards a third. Those three tiles form a pung. It fits Crosswind, our original-card line requiring a same-number pung in each suit, a wind pung and a dragon pair.
The complete decision, not just the call button
Stage
Tiles and consequence
Before calling
Your 13 tiles include two 1 bamboo; pungs of 1 characters, 1 dots and East; one red dragon; and a loose 6 bamboo.
Call 1 bamboo
Your two matching tiles plus the discard form an exposed pung. You now hold 14 tiles in total, counting the exposure.
Discard 6 bamboo
You return to 13 tiles. Four pungs are complete; the red dragon pair still needs one natural red dragon.
A later red dragon is discarded
Declare a winning claim if this is still your hand. It completes the entire recipe, so the pair exception applies.
A drawn joker instead of that red dragon does not finish the pair. A discarded joker cannot be taken at all. The prepared lesson teaches the initial call; the later discard and winning tile here illustrate the continuation, not an automatic next screen.
Before confirming any exposure, name the complete line it serves. Once settled, a pung cannot satisfy a recipe asking for a pair or kong of that identity. A visible legal call is an available move, not a recommendation that it is your strongest move.
Check four things before calling
Is the tile still claimable? Our game presents a response phase for the latest discard. Earlier discards are not a supply you can revisit.
Can I complete the group now? Select matching natural tiles and any permitted jokers from your rack. You cannot claim first and promise to finish the group later.
Does the card allow this exposure? Its identity and exact size must fit a possible exposed line together with your other exposures.
What am I giving up? Check whether the call abandons a concealed line or removes a useful alternative.
A new exposure has a short adjustment window
In Air Mahjong, you may adjust the exposure you just called before your first discard or joker exchange. You must keep the claimed natural tile, and the revised group must still be permitted by the card. The adjustment can change its size or its mixture of natural tiles and jokers; it cannot turn a called 1 bamboo into a group of 5 dots.
After you discard or exchange a joker, the group’s size is settled. A later matching natural tile may replace an exposed joker, but that exchange does not reopen the group for general rearrangement.
Three tempting calls that do not work
“It gives me a pair.” A pair is not an ordinary exposure. Only a complete winning hand creates the exception.
“I can swap it for that exposed joker.” A useful exchange does not by itself entitle you to claim a discard.
“It makes a run.” American play does not offer the general chow call used in some other variants. Follow this card’s groups.
Passing is a real decision too
Use this short decision order when a tile appears: first ask whether it completes the entire hand; if not, ask whether it completes a permitted exposure; then ask whether committing to that exposure improves your plan. If all it does is create a pair, offer an exchange token or preserve a vague possibility, pass.
Practice the prepared call, then explain your next discard and exact winning tile using the example above. Finally read the joker rules so you can distinguish a helpful exchange from an illegal claim.
Your turn
After the worked call and 6 bamboo discard, you have four completed pungs and one red dragon. Another player discards a red dragon. What should you do?
Choose an answer. You can try again.
Your next practice mission.
Before confirming the call, name the full target line. Use the two 1 Bams with the discard, then explain why you must discard instead of drawing again.
No account needed. These lessons use Air Mahjong’s original 2025 house card, not an official annual league card. This button does not start paid coaching.
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