TILES AND GAMERS
You can play the game OK with tiles, similar to those one from the Dominoes game. Up to four players can play. The tiles are in four colors (usually red, blue, green and black) with numbers from 1 to 13 over them, as every tile have two numbers. There are two additional tiles (with Star or J over them). The tiles are 106 total. (4 x 13 x 2 = 104 + 2 = 106 ) (2 black 1, 2 black 2, 2 black 3, ……, 2 green 13 etc.). Plus the two tiles with star (called fake OK).
Every player has a board for ordering of tiles. The tiles are closed and ordered by five in a heap, one next to the other (21 heaps x 5 pc. + 1)
For the determination of the OK cast a die, (2 times - the first time to determinate the heap, and the second time to determinate which tile from the heap will be OK) and then the game is open. The open tile (a number from the respective color), with 1 (bigger from the same color) is OK (for example if the open tile is black 1, OK is black 2 - two pc.). The OK could replace every other tile when making series (groups).
DEALING OF THE TILES
Someone of the players deal the tiles, as the first player have 15 tiles (because he is going to play first), and the other three players have 14 tiles each. Every player arranges his tiles on his board. With the arranging, if some player before to play have the same tiles, as the open tile (in the example - black 1), the result of the other player became with one point down (if the player has at least three points). The players are doing that before the end of the first round.
The player, who have 15 tiles play first. He cleans one tile for which he suppose, that he will not need in the making of the series (groups), as he puts her on his right side (between his desk and the desk of the player, who stands on his right side).
The players are making moves counterclockwise. Then plays the second player, who can take the tile, left by the previous player (the player who is on his left side) or to withdraw one tile from the heap in the middle (those tiles, which are not given to the players) and then also cleans one tile. Then plays the third player and after him, the forth player. That is the way to make round after round until the moment when one of the players “close” (order the tiles in series/groups as it is in the rules) or the tiles are finished.
The goal of the game is the tiles to be ordered in series (groups). One group can be made by three tiles at least, (not if they are couple), which could be ordered by one color (1-2-3; 2-3-4; …; 11-12-13; and 12-13-1. After the 13-th tile could be placed only tile 1)
or if they are with the same value, but in different colors (for example - blue 1, red 1, green 1, red 13, green 13, blue 13) etc.
The group could be from more than one tiles from identical colors (but a least three). The equal numbers with different color (3 or 4).
If the player has to make a couple, the tiles have to be ordered by two pc. in color (every number in some definite color has two pc.)
For example: 2 black two, 2 red three, 2 blue five, two green eight, 2 black ten, 2 blue eleven, and two red thirteen. The tiles Fake OK also can make couple. Or seven couples x 2 = 14 tiles.
If making series (order) of 14 tiles in equal color, the group must collect all the tiles in the same color from 1 to 13 and second 1, which means only black, or only blue, or only red, or only green 1-2-3-4-5-6-7-8-9-10-11-12-13-1.
COUNTING OF POINTS
If the tiles are finished before any player to close, the result of every player goes down by one point.
If someone close as usual, the result of the other players go down by two points.
There are some ways, which could take more points down from the players result.
If any player closes with tile OK (the tile with one bigger than the open one), 4 points are going down from the results.
8 points are going down, if the player orders the tiles by couple (if he make 7 series by two equal tiles).
If player order the tiles by couple and close with tile OK, 12 points are going down.
If player order the tiles only from one color (in black, blue, red or green - from 1 to 13 and 1) and makes group (order), 16 points are going down from the result of the other players.
If any player makes a group of one color and close with OK, 20 points are going down.
In the beginning of the game all of the players have 20 points. Points are counting down. The games finishes when any player reaches zero points.
The game wins the player, who has most of the points at the end.
TILES OK AND FAKE OK
The tiles with star (Fake OKs) could be replaced only with the number with value as the real OK (if the tile OK is blue 2, as in the picture above, the Fake OK could replace or to be used only instead of tile blue 2), so it could stand between blue 1 and blue 3, to be in the beginning of the blue 3, 4, 5 and/or other and to make group or to be in the group with two other tiles from other color - red 2, green 2 and/or black 2.
The real OK (or OKs, as they are two) can replace any tile from any group (as Joker) and to be used instead of any missing tile.
When making groups the tiles OK and Fake OK could be used at the same time in one or more groups. In the examples from the pictures below: Group of tile OK (blue 2), used instead of blue 1, tile Fake OK, used instead of tile blue 2, tiles blue 3, blue 4 and blue 5 or group of tile Fake OK, used instead of tile blue 2, tiles blue 3, blue 4 and, blue 5 and tile OK (blue 2), used instead of blue 6. And a group of Fake OK, instead of blue 2, red 2, green 2 and tile OK (blue 2), used instead of black 2.
With every new deal the tile OK is changing. (The possibility to have the same tile is 1/52).
If all tiles are in group (as in the rules above), the player could "close" if he put the 15 tile, which is unnecessary in the middle of the table over the open tile and the he may show his desk to the other players.
If any player makes groups and the tile OK is unnecessary, then he may close with OK. The result of the other players goes down with more points (as it has been shown above).
The computer version of the game
In the computer version of the game, the computer determines the tile OK.
The heaps are ordered in the middle and with number from left to right, from up to down with numbers from 1 to 10.
The withdrawing of tile could be done consecutive from the respective heap with Drag and Drop of the tile or double click with the mouse over the tile from the heap in the middle
or over the tile, which has been dropped from the previous player.
The cleaning of tile could be done also with Drag and Drop of the tile which has been placed on your right side or Double click over the tile.
With the right button click over own tile from the desk it became closed (turn it is back), then it is protected from cleaning. If the tiles is OK, with Double click a small boy OK comes up. With the next click the tile could be opened and cleaned.
With Drag and Drop of the unnecessary 15 tile over the tile in the middle the game could be closed.