Pair

Pair

Definition

A pair (also called jantou or atama) consists of two identical tiles. In standard mahjong, every winning hand must contain exactly one pair.

Detailed Explanation

The pair is one of the fundamental building blocks of mahjong hand composition. Unlike melds, which consist of three tiles arranged in specific patterns (such as pung, kong, or chow), a pair requires only two matching tiles.

Characteristics

Pairs can be formed from any tile type in the game:

• Honor tiles: Any of the four winds (East, South, West, North) or three dragons (White, Green, Red)
• Number tiles: Any of the nine different number values (1-9) in each of the three suits (bamboo, character, dot)

The two tiles in a pair must be identical in both suit and rank. For example, two East wind tiles form a valid pair, as do two 5-dot tiles or two 7-character tiles.

Role in Hand Structure

A complete winning hand in standard mahjong consists of:

• Exactly one pair (2 tiles)
• Four melds (12 tiles), which can be pungs, kongs, or chows

This creates the standard 14-tile winning hand structure. The pair serves a unique role—it is the only element of a winning hand that does not form part of a three-tile sequence or group.

Strategic Significance

The pair holds considerable strategic importance in mahjong gameplay:

Pair Selection: Players must decide early which tile to designate as their pair, as this choice influences which melds they can form and which tiles they need to draw. A poorly chosen pair can lock a player into an inefficient hand structure.

Winning Flexibility: Certain pairs, particularly honor tile pairs, are considered more flexible because they don’t commit a player to a specific suit or number sequence. In contrast, choosing a pair like 5-dot may suggest to other players that you’re building melds in the dot suit.

Scoring Considerations: In many mahjong variants, the pair itself can contribute to hand scoring. For instance, a pair of dragons or a pair of the round wind often yields bonus points (called yaku or fu).

Terminology

The term jantou (眼牌) comes from Japanese mahjong terminology and literally means “eye tile,” reflecting the pair’s role as the “eyes” of the hand. The alternative term atama (頭) means “head,” suggesting the pair’s position at the top or beginning of hand composition. Both terms are widely used in English-language mahjong communities.

Usage Example

Consider a player building toward a winning hand:

“I’ve got three melds complete and I’m holding East, East, 3-bamboo, 4-bamboo, 5-bamboo, and 3-dot, 3-dot, 3-dot. I should use the two East tiles as my pair and form a chow with the bamboos. That leaves me needing one more pung or kong to win.”

In this example, the player has identified their pair (East, East) and structured the rest of their hand around it. The pair serves as the anchor point for the entire hand composition.

Related Terms

• Jantou: Japanese term for pair; synonymous with “pair”
• Atama: Alternative Japanese term meaning “head”; also refers to the pair
• Meld: A three-tile group (pung, kong, or chow); distinct from a pair
• Agari: A winning hand; always contains exactly one pair
• Menzenchin: A fully concealed hand; all tiles, including the pair, are hidden until winning
• Pung: A three-tile meld of identical tiles; often confused with a pair but contains three tiles instead of two
• Kong: A four-tile meld of identical tiles; an extended form related to the pair concept