Start Play The two players alternate in moving. In 'HO-SUN' and 'JUNG-SUN' game modes, the black stone moves first while for 'HANDICAP' mode, the white stone moves first.

Moving Stones As already explained, there are 361 line-crossing points on the game board. Players can place a stone any point among the 361 line-crossing points with the following three exceptions: A)Points where black or white stones are already placed. B) Self-Capturing position at which the stone is captured by the partner player automatically as soon as the player moves the stone. C)Repeated board position at which, by placing the stone, it repeats the previous board position again and again. Self-Capturing and Repeated Board Position will be explained more details in rule 3 and 4.

Capturing One of the ways to win the game is to capture the partner's stone as much as possible(At least this is true for Korean and Japanese Rules though it does not matter in the end compared to the Chinese Rule. For more details, please refer AGA rules). A player can capture the partner player's stones by surrounding them while the partner's stones are in a connected form by horizontally and vertically but not diagonally without any empty points . In Figure 2, if a black stone is placed at 'A' position, the 9 surrounded white stones will be captured by the black stone. The Self-Capturing position is any point where it extends the connected forms and makes them to be surrounded by the opponent's stones completely. In Figure 2, the position 'B ' will be the Self Capturing position for the white stone and, as already explained, the white stone is not allowed to be moved on the position 'B'.

Take Back Before game starts, two players can negotiate if they allow 'Take Back'. Once the game starts, this option can not be modified. If it is agreed to allow the 'Take Back', a player can request 'Take Back' any time for one's own latest stone move or for the partner's. However, the other player also has a right if he or she accepts the request or not for each request. In default, this option is 'disabled'. In IGS, the 'Take Back' is all the time allowed but it could be requested only from the partner player not the player who move the stone.

Pass Turn To finish up the game, two players should agree upon that there are no more places to move a stone to occupy more territories. If one of the two players thinks no more stone is needed to finish up the game while the other doesn't, the player can pass his or her turn to the partner player at his or her turn so that the partner can move a stone wherever the partner wants.

Remove Dead Stones Once one of the two players thinks the game is completed, he or she can request 'Remove Dead Stone' Request. If the partner does not accept the request, the player can pass the turn to the partner or the player can move a stone to any neutral empty points. If the partner accepts the request, both players should remove the dead stones in the partner's occupied territory by clicking one's own dead stones. For example, the black stone player should click the black-colored dead stone. One single click on a dead stone will remove all dead stones in a partner's territory. If one of the two players finds the game is not done completely during he or she removes dead stones, he or she can come back to in-play mode at any time.

Acknowledge Rights to capture Stones In Favor of Capturing Stones Sounds complex ? Sometimes, an arguing situation could be happened by the two players. One player thinks some opponent's stones are dead while the other player thinks the stones are alive. Let's see the Figure 6, 7, 8, 9 and 10. In Figure 6, while a black stone can not be moved either on 'A' or on 'B', a white stone could be moved on 'A' since it could lead a 'PAE' or 'KO'' situation as explained Rule 5. Figure 7 through 10 show how this is a 'PAE' situation. If this is happened during the game is progressing, the white stone could catch the black stones only if the outer white stones are alive and the white stone wins the 'Pae' situation. If this is happened at the end of the game, however, the white stone will capture the black stone in the end since there is no more place to move the black stone. As a result, during the 'Remove Dead Stone ' phase, we acknowledge white stone's rights to catch the black stones at the figure 6 without any further stone move.

Neutral Points Please see the Figure 11. On the assumption that those surrounding black and white stones are alive at the end of the game, the inner two empty points are neutral since both stones can not be moved at the empty points to capture opponent's stones.

Counting Territory After removing the dead stones, one of the players can request counting to the partner player. The total number of territory for each player = 'the total number of empty points in the player's territory' - 'the total number of stones captured by the partner player' + 'compensation points' if any. As already explained, for 'HO-SUN' game mode, 6.5 compensation pointes will be given to the white stone player unless it is not modified during the game negotiation time. The neutral empty points are not counted for any player. The winner is the player whoever got the more territories than the other player.

Resign If one of the players thinks the game is out of control and there is no other way to win the game, he or she can give up the game at any time.