101 Okey Rules, Scoring and Game Types

Objective and setup

The game is played by four people; bots fill in if needed.
The dealer receives 22 tiles and every other player receives 21.
The dealer starts by discarding; later turns begin by drawing.
Turns move counterclockwise around the table.
The goal is to finish your rack and end the match with the lowest total penalty.
An indicator tile is revealed; the joker has the same color and the next number (1 after 13). There is no indicator declaration or bonus.
A false joker carries the normal color and number value of the joker tile.

Each turn consists of drawing, optional table actions, and discarding one tile.
Draw from the face-down deck or take the previous player's latest discard.
An unopened player must use a side discard in their own opening.
A side discard may be returned before any public table change, after which the player draws from the center.
A previously opened player may use a side discard in any otherwise legal table action.
The previous player's discard cannot be taken if it is a playable tile.
Returning after opening, processing, or retrieving a joker causes a 101-point penalty.
Discarding ends the turn; discarding the final rack tile finishes the hand.
If the center deck is empty, the hand is scored without a winner.
A human player's first accepted opening attempt adds 15 seconds once, up to a 60-second maximum.

A run contains at least three consecutive tiles of one color.
A run cannot wrap from 13 to 1.
A color set contains the same number in three or four different colors.
A color set cannot repeat a color.
Each newly opened meld may contain at most five tiles.
A double contains two real tiles of the same color and number, or one real tile paired with a joker.
Every double must contain at least one real tile; two jokers cannot form a double and are rejected in a doubles opening.

For a meld opening, add the number values of the tiles.
In standard play, the value of a meld opening must be 101 or more.
For example, the 7-8-9 run is worth 7 + 8 + 9 = 24; the 3-3-3 color set is worth 3 + 3 + 3 = 9.
For quick scoring, add only the middle values and aim for 33 remainder 2, which represents 101 points.
For example, use 8 for the 7-8-9 run and 2 for the 2-2-2 color set. Their sum of 10 represents 30 points: 10 × 3.
The remainder comes from dividing the leftover value by 3. In 7-8-9-10, choose 9 as the middle tile: 7 ÷ 3 is 2 remainder 1.
The total is therefore 9 + 2 remainder 1 = 11 remainder 1. This represents 3 × 11 + 1 = 34 points.
For the same 7-8-9-10 run, choose 8 instead: 10 ÷ 3 is 3 remainder 1, again giving 11 remainder 1 and 34 points.
Calculate every meld this way and aim for 33 remainder 2, or 101 points. Adding only the middle values makes scoring easier.

In standard play, the value of a meld opening must be 101 or more.
In individual progressive play, you must exceed the highest opening; if you open first, you still need 101 points.
In partnered progressive play, you must exceed the opposing team's opening value.
A doubles opening is measured by the number of doubles played.
A doubles opening requires at least five doubles.
In partnered progressive play, a doubles opening must exceed the number of doubles opened by the opposing team.
A player cannot process tiles into another player's meld before completing their opening.
After a valid opening, suitable tiles may be added to open ends of table melds.
At least one rack tile must remain available for the closing discard.
At most two tiles may be processed onto the same end of a meld in one action.
Trying to close the turn below the opening threshold rolls back the actions and adds 101 penalty points.

A joker may replace a missing tile in a valid run or color set.
A table joker may be retrieved only by supplying the real tile or tiles it represents.
A joker cannot be replaced with another joker.
To retrieve the joker from a three-tile color set, every missing color must be supplied in the same action.
For example, if blue 3, black 3, and a joker are on the table, both red 3 and yellow 3 are required; supplying only one is invalid.
In a four-tile color set containing a joker, supply the tile represented by that joker to retrieve it.
If another player retrieves a joker placed on the table, the player who last placed it receives 101 penalty points.

Discarding a playable tile costs 101 points unless that discard finishes the hand.
Discarding a joker costs 101 points unless that discard finishes the hand.
Rolling back after changing the table costs 101 points.
Discarding before completing the required opening threshold costs 101 points.
An invalid attempt to finish entirely from the rack is rolled back and costs 101 points.
When a side discard is used for a meld opening, its discarder receives ten times its face value.
When a side discard is used for a doubles opening, its discarder receives twenty times its face value.

The player who finishes receives -101 points.
A player who never opened receives 202 penalty points.
A meld opener scores the sum of the face values left in their rack.
A doubles opener scores twice the sum of the face values left in their rack.
Each real joker left in an opened rack adds another 101 penalty points.
Held-joker points are outside finish multipliers and are not added separately to an unopened rack.
For example, if you hold a joker when someone else finishes with a joker, your 101-point joker penalty remains 101 rather than becoming 202.
Finishing entirely from the rack, finishing with a joker, and finishing after opening doubles each add a ×2 multiplier; combinations may reach ×4 or ×8.
The finish multiplier applies to the winner's -101 and the opponents' base end-of-hand scores.
If all four players open doubles, the hand is cancelled, that hand's penalties are removed, and the tiles are dealt again.
The player or team with the lowest total penalty wins the match.

Seats 1 and 3 are Team A; seats 2 and 4 are Team B.
Teams cannot change after the match starts.
A partner opening does not open the other player; everyone meets their own requirement.
You cannot see a partner's rack or act on their behalf.
A team's score is the sum of both partners' applied penalty points.
When a player finishes, their partner's remaining-rack penalty is cleared; immediate penalties such as discarding a playable tile remain.
The team with the lower total penalty wins; equal totals produce a draw.

The first meld threshold is 101 points and the first doubles threshold is five pairs.
After an accepted opening, the next threshold becomes at least one more than the accepted value.
For example, an opening of 108 makes the next meld threshold at least 109.
Meld and doubles thresholds rise independently.
In standard play, thresholds stay at 101 points and five pairs throughout the hand.
In partnered progressive play, an opening raises only the opposing team's threshold.
Every new hand resets all thresholds to 101 points and five pairs.

You may play with a guest account; a permanent account retains your profile and statistics.
To play with friends, create a private room and share its code and optional password.
Bots that fill empty seats are subject to the same authoritative server rules as players.
Assisted play only shows valid-action hints; it does not change the rules.
The game works in current desktop and mobile browsers.
Problems and bugs can be reported through the feedback form.