Good hands start here.
Find your rhythm. Learn the rules. Discover your next winning hand.
Mahjong Competition Rules
The full tile set, classic calls, and a rich catalogue of scoring combinations.
The tiles & the goal
Play with circles, bamboos, characters, winds, dragons, and flowers: 144 tiles in all. Most winning hands form four sets and a pair; special hands such as Seven Pairs and Thirteen Orphans take a different shape.
Draw, discard, claim
Draw a tile, then discard one. Claim a discard with Pong for three matching tiles, or Kong for four. Chow claims a sequence from the player immediately before you. Declare Hu when your draw or an eligible discard completes your hand.
Winds & flowers
Your seat wind and the prevailing round wind can each score through a matching pong or kong. Flowers are revealed and replaced, and add one point each.
Scoring in Mahjong Space
The app uses Mahjong Competition Rules scoring, also called Chinese Official Scoring. Compatible features combine; overlapping or excluded combinations do not count twice.
Mahjong Space currently allows a complete hand without enforcing the official eight-point minimum. Flower points are bonus points, separate from that official minimum.
On a discard win, the discarder pays your hand value plus eight points, and the other two players pay eight each. On a self-draw, all three opponents pay your hand value plus eight.
One Hu ends the round
Scores are tallied when a player goes out. Seat winds rotate across rounds; the prevailing wind marks the larger round cycle.
Winning hands & scoring features
82 entries in MCR
88 points
Thirteen OrphansHand is composed of singles of any 12 of the 1, 9, and Honor tiles, along with a pair of the 13th. Combines with Fully Concealed Hand if Self-Drawn.Seven Shifted PairsHand is composed of seven pairs in the same suit, each shifted one up from the last. Combines with Fully Concealed Hand if Self-Drawn.Four KongsHand includes four kongs. Does not combine with Single Wait. Points for concealed pongs can be added.Nine GatesHolding a concealed hand of 1112345678999 tiles in one suit, and winning on the 1, 2, 3, 4, 5, 6, 7, 8, or 9 of the same suit. Combines with Fully Concealed Hand if Self-Drawn.All GreenHand is composed entirely of the 2, 3, 4, 6, 8 of bamboo and/or green dragon tiles.Big Three DragonsHand includes pongs (or kongs) of all three dragon tiles.Big Four WindsHand includes pongs (or kongs) of all four wind tiles.
64 points
Pure Terminal ChowsHand includes two 123 chows, two 789 chows, and a pair of 5's, all in the same suit.Four Concealed PongsHand includes four concealed pongs. Combines with Fully Concealed Hand if Self-Drawn.Little Three DragonsHand includes two pongs of dragons and pair of the third dragon.Little Four WindsHand includes three pongs of winds, and a pair of the fourth wind. Can combine with Prevalent Wind and Seat Wind.All HonorsHand is composed entirely of only honor tiles.All TerminalsHand made with only terminal suit tiles.
48 points
32 points
All Terminals and HonorsHand consists entirely of terminals and honors.Three KongsHand includes three kongs. May combine with Three Concealed Pongs if the kongs are all concealed.Four Shifted ChowsHand includes four chows in one suit, each shifted up 1 or 2 numbers from the last, but not a combination of both.
24 points
Lower TilesHand consisting entirely of 1, 2, and 3 suit tiles.Middle TilesHand consisting entirely of 4, 5, and 6 suit tiles.Upper TilesHand consisting entirely of 7, 8, and 9 suit tiles.Pure Shifted PongsHand includes three pongs (or kongs) of the same suit, each shifted one up from the last.Pure Triple ChowHand includes three chows of the same numerical sequence and in the same suit.Full FlushHand consists entirely of suit tile of the same suit.All Even PongsHand consists of four pongs and a pair, using only even-numbered suit tiles.Greater Honors and Knitted TilesHand consists of one tile of every wind and dragon, and singles of suit tiles that belong to separate knitted sequences. May combine with Fully Concealed Hand if Self-Drawn.Seven PairsHand consists of seven pairs. May combine with Fully Concealed Hand if Self-Drawn.
16 points
Three Concealed PongsHand includes three concealed pongs.Triple PongHand includes three pongs of the same number, one in each suit.All FivesHand uses a 5 suit tile in every set, including the pair.Pure Shifted ChowsHand includes three chows in one suit, each shifted up either one or two numbers from the last, but not a combination of both.Three-Suited Terminal ChowsHand consists of a 123 chow and 789 chow in one suit, a 123 chow and 789 chow in another suit, and a pair of fives in the third suit.Pure StraightHand includes three consecutive chows in the same suit, making a nine-tile straight.
12 points
Big Three WindsHand includes pongs (or kongs) of three of the winds.Lower FourHand consists entirely of suit tiles 1 through 4.Upper FourHand consists entirely of suit tiles 6 through 9.Knitted StraightHand includes a nine-tile straight formed with 3 different knitted sequences.Lesser Honors and Knitted TilesHand composed of singles of any honors and singles of suit tiles that belong to different knitted sequences. Combines with Fully Concealed Hand if Self-Drawn.
8 points
Chicken HandA hand that would otherwise earn 0 points (excluding flowers).Robbing the KongWinning off the tile that somebody adds to a melded pong.Out with Replacement TileWinning on the replacement tile drawn after declaring a kong. Counts as self-drawn.Last Tile ClaimWin by discard on the discard after the last tile of the wall is drawn.Last Tile DrawSelf-drawn win on the last tile of the wall.Two Concealed KongsHand includes two concealed kongs.Mixed Shifted PongsHand includes three pongs (or kongs), one in each suit, each shifted up one number from the last.Mixed Triple ChowHand includes three chows of the same numerical sequence, one in each suit.Reversible TilesHand consists entirely of reversible tiles (1,2,3,4,5,8,9 circles; 2,4,5,6,8,9 bamboo; and white dragon).Mixed StraightHand includes a 123 chow in one suit, a 456 chow in another suit, and a 789 chow in the third suit.
6 points
Two Dragon PongsHand includes two pongs (or kongs) of dragons.Melded HandHand includes four melded sets and is won by discard.All TypesHand in which each set, including the pair, is composed of a different type of tile (characters, bamboos, circles, winds, and dragons).Mixed Shifted ChowsHand includes three chows, one in each suit, each shifted up one number from the last.Half FlushHand composed entirely of honors and suit tiles of only one suit.All PongsHand includes four pongs (or kongs) and a pair.
4 points
Last of its KindWinning on a tile that is the last of its kind. This fact must be clear based on the visible discards, melds, and the winning player’s hand.Two Melded KongsHand includes two melded kongs.Fully Concealed HandHand consists entirely of concealed sets and is won by self-draw.Outside HandHand includes terminals and honors in each set, including the pair.
2 points
All SimplesHand consists entirely of simples (non-terminal, non-honor tiles, aka no 1s or 9s, no winds, no dragons).Concealed KongHand includes one concealed kong.Two Concealed PongsHand includes two concealed pongs.Double PongHand includes two pongs of the same number in two different suits.Tile HogHand uses all four of a suit tile without using them as a kong.All ChowsHand consists of all chows and no honors.Concealed HandHand includes four concealed sets and is won by discard.Seat WindHand includes a pong (or kong) of the player’s seat wind.Prevalent WindHand includes a pong (or kong) of the prevalent (table) wind.Dragon PongHand includes a pong (or kong) of dragons.
1 point
Pair WaitWaiting solely for a tile to form a pair. This tile must be the only one that will complete four sets and a pair.Closed WaitWaiting solely for the middle tile of a chow. This tile must be the only one that will complete four sets and a pair.Edge WaitWinning on a 3 to form a 123 chow, or solely for a 7 to form a 789 chow. This tile must be the only one that will complete four sets and a pair.FlowersEach flower tile is worth 1 point. They do not count towards the 8 point minimum for making Mahjong (note: minimum not currently enforced in Mahjong Space scoring).Self DrawnWinning on a tile drawn from the wall.No Honor TilesHand uses suit tiles only.One Voided SuitHand uses tiles from only two of the three suits. The hand can include honors.Melded KongHand includes a melded kong.Pong of Terminals or HonorsHand includes a pong (or kong) of 1's, 9's, or winds that aren't the prevalent wind nor the player's seat wind.Two Terminal ChowsHand includes a 123 chow and a 789 chow in the same suit.Short StraightHand includes two chows in the same suit that run consecutively after one another to make a six-tile straight.Mixed Double ChowHand includes two chows of the same numbers but in different suits.Pure Double ChowHand includes two identical chows in the same suit.