To Tom Rules: How to Play Tổ Tôm, the Vietnamese 120-Card Game

Tổ Tôm is the traditional Vietnamese card game with the reputation of being the hardest to learn. It uses its own deck of 120 long, narrow cards marked in Chinese characters, it takes five players, and it comes with a vocabulary that newcomers need a few sessions to absorb. It belongs to the rummy family: the aim is to arrange every card in your hand into valid combinations and declare a finished hand. This guide explains the deck, the deal, what phu and ù mean, how Tổ Tôm differs from Chắn — and why the cards show Japanese figures.

The 120-card Tổ Tôm deck

The deck has 30 different cards, four copies of each: 30 × 4 = 120.

• 27 suited cards: three suits — Vạn (萬, myriads), Sách (索, strings) and Văn (文, cash) — each running from 1 (nhất) to 9 (cửu). 3 × 9 = 27.
• 3 special cards: ông lão (the old man), thang thang and chi chi.

Each card shows its rank at one end and its suit at the other, both as Chinese characters. The full-length figure in the middle of the card has no bearing on its value. 28 cards are overprinted in red — the 8s and 9s of strings and myriads, and the special cards — and the other 92 are printed black on white.

Because every card exists exactly four times, experienced players keep count: once three copies of a card have appeared, only one is left. Reading the characters is the first hurdle — you have to learn the faces before you can learn the rules.

Why are there Japanese figures on Tổ Tôm cards?

This is the detail that surprises almost everyone. The figures on the cards are drawn in Japanese Edo-period dress — accounts describe 18 men, 4 women and 4 children — alongside very Japanese images such as carp, peaches, castles and boats. The deck as it is known today was printed by a French firm in Marseille during the colonial period.

Yet the Japanese do not play Tổ Tôm. Vietnamese press reports say Japanese readers who looked at the characters on the cards could not read them, or could only guess, and Japanese scholars including Professor Yumio Sakurai have studied the question without settling it. The pictures are Japanese, the game is Vietnamese, and the link between the two is still an open question — so “Tổ Tôm comes from Japan” is not an established fact.

The deal

1. Tổ Tôm is played by five players.
2. The 120 cards are split into six piles of 20.
3. Five piles go to the five players; the sixth becomes the stock (nọc), which players draw from during the hand.
4. The dealer ends up with 21 cards, one more than everyone else, and plays first.

Play then goes round the table: players draw from the stock, take discarded cards they can use, and discard, each trying to fit their whole hand into phu.

Phu: the valid combinations

A phu is a valid combination of three or more cards. There are two basic kinds:

• Phu dọc (run): three consecutive ranks in the same suit — for example 2, 3 and 4 of Vạn.
• Phu bí (set): the same rank in three different suits — for example the 5 of Vạn, the 5 of Sách and the 5 of Văn.

On top of these, some special groupings are accepted as phu by convention — for example 1 of Vạn, 1 of Sách and 9 of Văn. This is one of the areas where tables differ, so agree it before you start. If you know Phỏm, a phu is the same idea as a phỏm: a group of cards that belongs together.

Ù: winning the hand

Ù means going out and winning the hand. The basic conditions are:

• All 21 cards in your hand are in phu, with no loose card left over (a loose card is called què).
• The hand contains at least one lưng.

A lưng is a required condition for ù, but rule sets do not agree on one fixed definition of it, and it varies by region. The same goes for the scoring system (cước): Tổ Tôm has a great many special winning hands, each with its own value, and how they are scored differs a lot between rule sets. Ask how the table plays before the first deal.

Tổ Tôm vs Chắn

The two games use the same cards, and Chắn is essentially the reduced version of Tổ Tôm:

Because it is easier to learn, Chắn is far more widely played, especially in the north. If Tổ Tôm feels like too much, start with Chắn: same cards, same way of thinking, lighter rules. See all the Vietnamese card games and their decks.

Can you play Tổ Tôm at an online casino?

No. Tổ Tôm needs its own 120-card deck, so it is not in the lobbies of the online casinos we list. The card games they carry are baccarat, blackjack, poker and a handful of Asian three-card games. 22bet’s casino lobby has three versions of Bài Cào from King Midas Games plus live Teen Patti tables, and 20Bet’s live casino lists Three Card Poker and Teen Patti. If you play for real money, set a budget first.

Play responsibly

Tổ Tôm belongs to village life, festivals and Tết, and in that setting it is a game of skill and culture. Played for money, it is gambling, with a real risk of losing it. Treat it as entertainment, not a way to earn, and set limits before you play. For adults 18 and over only.