Ô Ăn Quan

Game type: Two-player mancala with two Mandarin semicircles and ten citizen squares — multi-lap relay sowing in chosen direction; empty-square jumping captures with alternating chains; ends when both Mandarins are taken

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Overview

Ô Ăn Quan ("Mandarin Square Capturing") is a celebrated traditional board game of Vietnam. Historically popular among children and rural communities, the game was commonly marked directly on packed earth, stone verandas, or pavements using charcoal or chalk, played with common gravel and two larger river rocks. Embodying themes of agrarian stewardship and tax collection, players manage five citizen plots and vie to capture the wealthy provincial governors (Mandarins) at either end. The cultural resonance of the game is immortalized in Vietnamese folk poetry, children's rhymes, and celebrated works of art, most notably the master painter Nguyễn Phan Chánh's 1931 silk masterpiece Chơi Ô ăn quan.

Board

• Ranks/rows: Two
• Holes per row: 5 citizen squares (ô dân), totaling 10 citizen pits
• Mandarin squares (ô quan): Two large semicircular pits, one at each end
• Counters: 5 small pebbles in each citizen square (50 total); 1 larger stone (worth 10 points) or 10 small pebbles placed in each Mandarin square (20 points total). Board total: 70 points.
• Layout:

       [   Mandarin 1   ]
   [ 4 ] [ 3 ] [ 2 ] [ 1 ] [ 0 ]   <- Player 1
   [ 5 ] [ 6 ] [ 7 ] [ 8 ] [ 9 ]   <- Player 0
       [   Mandarin 0   ]

How to Play

• Players take turns moving stones.
• On their turn, a player picks up all pebbles from any non-empty citizen square on their own side.
• The player chooses either a clockwise or counter-clockwise direction and sows the pebbles one by one into subsequent squares, including the Mandarin semicircles.
• Relay sowing:
  • If the last pebble falls into a square immediately followed by an occupied citizen square, the player collects all pebbles from that following square and continues sowing in the same direction.
  • If the square immediately following the landing square is a Mandarin square, the move terminates and no further sowing occurs.
• *Passing / Refilling (Thả cá):*
  • If a player's five citizen squares are completely empty at the start of their turn, they must perform thả cá ("releasing fish"): placing one pebble from their captured reserve into each of their five squares.
  • If the player holds fewer than 5 captured pebbles, they must borrow the deficit from their opponent, to be repaid during final scoring.

Capturing

• If the last pebble lands in a square followed immediately by an empty square, a capture is triggered:
  • The player captures all counters in the square directly following the empty square (whether it is a citizen square or a Mandarin square).
  • Chaining: If the square immediately following the captured square is also empty, the player jumps it and captures the contents of the square after that as well. This leaping capture continues along the track as long as single empty squares alternate with occupied ones.
  • Double empty stop: If the landing pebble is followed by two or more consecutive empty squares, or if an empty square is followed by another empty square during chaining, the turn ends immediately without capturing.

End of Game and Winning

• The game concludes the moment both Mandarin squares have been emptied of their counters.
• Any pebbles remaining in the citizen squares are collected by the player on whose side of the board they sit.
• Any debts incurred during thả cá borrowing are repaid.
• Each player calculates their total score (captured pebbles plus final swept pebbles, with Mandarin stones valued at 10 points each).
• The player with the highest total score wins.

Notes

• Traditional play uses natural stones (sỏi): common small pebbles represent farmers or citizens (quân dân), while two distinctively larger stones or carved blocks serve as Mandarins (quan).
• Popular Vietnamese children's rhymes, such as Hàng hoa kẹo hột sen, accompanied moves and turn sequences during village gatherings.
• While the standard two-row layout is universal, historical four-player variations (Ô ăn quan bốn người) arranged four rows around a central quadrangle.

Source: Mancala World – Ô Ăn Quan

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