How to Count Live Tiles in American Mah Jongg
July 20, 2026 · Bird Bam
Counting live tiles in American Mah Jongg means comparing the tiles your hand still needs with every matching tile you can already see. Start with the copies in your rack, then subtract exposed and discarded copies from the number in the set; the result is the maximum number of matching tiles still available in concealed racks or the wall.
Which tiles should you count first?
Do not count every tile on the table. Begin with the one or two groups that determine whether your likely NMJL card hand can still be completed.
Prioritize:
- A required pair. A joker cannot fill either position.
- A nearly complete pung, kong, or quint. Jokers may help where the card permits.
- A rare-looking requirement. Count before committing if several copies are visible.
- Your closest competing hand. Count critical tiles for both choices instead of switching on instinct.
How many copies of each tile are in an American Mah Jongg set?
A standard 152-tile American Mah Jongg set gives you these starting totals:
| Tile type | Copies in the set | What to remember |
|---|---|---|
| Each numbered suit tile | 4 | Four identical 6 Dots, four identical 9 Bams, and so on |
| Each wind | 4 | Four Easts, four Souths, four Wests, four Norths |
| Each dragon | 4 | Four red, four green, and four white dragons |
| Flowers | 8 | Flowers are interchangeable when the card shows flowers |
| Jokers | 8 | Jokers can substitute in eligible groups of three or more, but never in a single or pair |
Players still need the current NMJL card to know the exact groups, colors, and exposure status required by a hand.
How to count live tiles step by step
Use this five-step scan whenever you are deciding whether to keep pursuing a hand.
1. Name the exact group you need
Be specific: “I need one more 6 Dot for a pung” is useful. “I need more Dots” is not.
2. Start with the set total
For a specific suit tile, wind, or dragon, begin with 4. For flowers, begin with 8 because any flower can satisfy a flower position.
3. Subtract copies in your own rack
These copies are already accounted for. If you hold two 6 Dots, subtract two from four.
4. Subtract every visible matching copy
Scan:
- all opponents’ exposures;
- the discard area;
- any matching tile in your own exposure.
A discarded tile is no longer available. A tile in another player’s exposure is also unavailable. Concealed tiles in opponents’ racks cannot be counted directly, so your answer is a maximum, not a guarantee.
5. Check whether a joker truly helps
For an eligible pung, kong, or quint, an available joker may act as another route to completion. A joker does not rescue a required pair or single. Also remember that a joker visible in another player’s exposure may be exchangeable only if you have the matching natural tile and can legally make the exchange on your turn.
Worked examples: count before you commit
Example 1: One natural tile remains
Your chosen hand needs a pung of 6 Dots. You hold two 6 Dots, and one 6 Dot is already in the discard area.
- Start with 4 total 6 Dots.
- Subtract the 2 in your rack.
- Subtract the 1 discarded copy.
- At most 1 natural 6 Dot remains unseen.
That last copy may be in the wall or concealed in another rack. If your group may use a joker, jokers provide additional paths; if the group must be natural, you have only one possible natural completion.
Example 2: A required pair is still possible but thin
You need a pair of red dragons and hold one. Two red dragons are visible in opponents’ exposures.
- Start with 4 red dragons.
- Subtract 1 in your rack.
- Subtract 2 visible copies.
- Only 1 red dragon remains unseen.
The pair is technically possible, but it depends on that final natural tile. Because jokers cannot be used in a pair, this is a fragile requirement. Compare it with another hand before passing or discarding useful alternatives.
Example 3: The natural group is impossible
You hold three 4 Bams for a required kong. The fourth 4 Bam is visible in another player’s exposure.
All four natural copies are accounted for, so no natural 4 Bam remains. If the group is joker-eligible, a joker could complete it. If the hand or group cannot use a joker, that route is closed and you should reassess immediately.
How should the count change your strategy?
Use the count as a decision aid, not as a prediction of the next draw.
| Count result | Practical response |
|---|---|
| Several natural copies remain | Continue if the rest of the hand is also strong |
| One natural copy remains | Keep a backup hand and avoid discarding its key tiles too soon |
| No natural copies remain, but a joker can help | Continue only if the overall hand is close enough to justify the narrow route |
| No legal completion remains | Stop building that hand and evaluate another valid line on the card |
Also compare quality of outs, not just quantity. One remaining tile for a pair is harder than one missing tile in a joker-eligible kong because the kong may have both natural-tile and joker routes.
A 20-second table scan for intermediate players
Before your next discard:
- Identify your hardest required group.
- Count its matching tiles in your rack.
- Scan exposures and discards clockwise.
- Calculate the maximum unseen copies.
- Ask whether a joker is legal in that position.
- Compare the result with your best backup hand.
- Discard only after that comparison.
Repeating this scan helps you abandon blocked hands earlier and preserve tiles for reachable alternatives.
How Bird Bam helps at the table
Counting live tiles improves decisions, but it does not remove the separate work of recording each result after Mah Jongg. Bird Bam is an iOS American Mah Jongg scoring and community/group-play companion that helps groups keep score and track hands and games, reducing paper-scorekeeping friction while players focus on the table.
Players still use the current NMJL card for valid hands and tile requirements. If your group wants a cleaner way to handle the scorekeeping around those decisions, Bird Bam gives the table a simple iOS companion for American Mah Jongg.
Frequently asked questions
Does “unseen” mean the tile is definitely in the wall?
No. An unseen tile may be in the wall or concealed in another player’s rack. Your count measures the maximum copies that could still become available, not the probability of drawing one.
Do discarded tiles count as live tiles?
No. Once a tile is in the discard area and play has moved on, treat it as unavailable. The immediate discard can be called only when the rules and the target group permit the call.
Can a joker count as an extra out?
Yes, when the needed position belongs to an eligible pung, kong, or quint. No joker can fill a single or pair.
Should beginners count every possible hand?
No. Count the critical requirement in your leading hand and one realistic backup. That captures most of the strategic value without slowing play.