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Two hands · Two sides · Four ways to play

Tandem Mahjong™

A new way to play. Challenge yourself or buddy up!

Tandem Mahjong reimagines American mahjong for one or two players. Cards have two sides, EAST and WEST, each with six original categories paired with a playful counterpart: Odd Squad meets Break Even, Flora faces Fauna, and Flashback battles Present Tense.

Then things get delightfully strange. By The Numbers turns tile combinations into working equations. Word Play spells out full phrases. There's something fun on this card for every player.

Here's how it works: Using a Tandem Rack, build an EAST hand and a WEST hand side by side. Declare Mahjong to lock one side in and keep playing for the second. Or complete both at once to declare Tandem Mahjong and score triple the value of both lines.

Or go head-to-head, each player taking one side of the card in Classic Duel, where the first Mahjong wins. Choose Classic Solitaire with a single rack, or take on both sides in Tandem Solitaire.

No full table required. No waiting for four players. Just a clever new way to play with a friend or on your own.

The 2026 Tenpai Tandem Mahjong Card standing open, showing the front cover

themes

West
East
Straight Lines
Cross Winds
Break Even
Odd Squad
Pairs
Quints
Flora
Fauna
Word Play
By the Numbers
Present Tense
Flashback

4 Ways 2 Play

One card, four games

Every Tandem Card plays four ways. Race the wall to complete a line on one or both sides, or challenge your partner to an EAST vs. WEST duel.

Tandem Solitaire™

1 Tandem Rack, 1 player

Build two walls, play both hands at once, and move concealed tiles freely between your EAST and WEST racks. Declare Tandem Mahjong before the walls run out.

Classic Solitaire™

1 single rack, 1 player

One hand, any line on the card. Complete a mahjong before the wall runs out to win—then do it again on the opposite side.

Tandem Duel™

2 Tandem Racks, 2 players

Two players, four hands. Build the Tandem Square, break the wall with the Tandem Pusher, and be the first to expose two hands.

Classic Duel™

2 single racks, 2 players

Each player takes one side of the card, EAST against WEST. The first player to complete a hand and declare Mahjong takes the game.

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