The Omok Strategy Guide
Omok is the Korean version of an ancient game called Gomoku. It is commonly played on a Go Board using black and white stones. Players take turns placing pieces in attempt to line up 5 pieces of their own color in a row. Once this is accomplished that player wins the game.
These are some simple rules to keep in mind while playing.
1) Donít get caught up in what your doing, make sure you always watch the opponent.
2) Play offensively
3) Donít try to win by expecting your opponent to not see simple moves. Another words donít make threats that do not benefit you.
4) Carefully watch closed lines of 3 and potential sequences using those lines.
Rule of three and three.
The three and three rule may be hard to understand at first. Simply put three and three rule disallows a player to move in a space that simultaneously forms two open rows of three. A row of three is a line that if left alone only requires one more piece to join 4 pieces with open ends on both sides. (a for sure win for that player). Example 1 jpg
In the picture examples one and two are open rows of 3.
Example three however is a closed row of three.
Here is an example of moves that violate the 3 and 3 rule. Example 2 jpg
The Overline Rule:
The Overline rule is something many Omok Players do not know about. If a row of more than 5 is formed then the player forming that row will not
win. This means if you get 6 in a row that does not mean you will win. This is an important rule to keep this in mind.
There are two kind of threats, immediate threats
and delayed threats
An immediate threat, is a row of four pieces. The threat must be blocked immediately or the other player can complete a row of five to win the next turn. Example 3 jpg
A delayed threat is an open row of 3, or any other threat that if not blocked this turn
will result in a loss in two turns or more
Because a delayed threat requires at least 2 turns a player may chose to temporarily ignore a delayed threat if he/she is able to form an immediate threat. Doing this may allow the player to maneuver his/her pieces in a better position or win using a sequence of immediate threats only.
Whenever a player makes a sequence of threatening move he goes on the attack. These moves leave the defending player with little choices in where to go. Sometimes even if you donít know a winning sequence it is good to continue making threats to gain a valuable position.
Defense should only be done out of necessity. You will have a very difficult time winning if the only thing you do is try to prevent the other person from winning.
Attack: players who concentrate on offence have a better chance of winning. If you make a continuous sequence of threats the other player may never have a chance to win. However this can be dangerous, Even though your on attack, you must continue to pay close attention to the opponentís formations. If youíre not careful your opponent will form a line using only defensive moves. You need to learn to see this, and in some cases expect it.
An attacking player has control of the game. That player dictates where all the pieces are being places and has strong influence on where the focus of the game is. When the attacking player fails to make a threat. Then control is passed to the other player, when they can start there own attack sequence. Also Control can be passed if the opponent counters a delayed threat with an immediate threat or if their defensive move forms a threat simultaneously while blocking.
Passing control is very dangerous, because many times it results in a loss. You should keep control as much as you can but do not exhaust all your options in order to keep control. The longer you have control, the more pieces your opponent will have to build off of.
Unstoppable Sequences 2 and 3:
The 2 and 3 sequence is where you simultaneously make a closed row of 4 and a open row of 3 at the same time. Example 4 gif
There are many variations of the 2 and 3 sequences and it is the most common way of landing a win that doesnít require your opponent to make a blunder (stupid mistake)
If you have a closed line of 3 think of ways you can make it into a 2 and 3 sequence while making other threats. Example 5 gif
this looks pretty simple but beware that the opponent may have multiple ways of responding like they do in this example. There responses might require you to abandon your sequence to defend another threat. However this said it is always helpful to game plan. Dual Immediate Threats.
A dual immediate threat isnít really a sequence at all. It is simply forming two immediate threats at the same time that require different spots to be blocked. Example 6 jpg Immediate Combo:
This is similar to the 2 and 3 sequence, except instead of using just 1 immediate threat it uses the pieces from multiple immediate threats to form a line. Doing this requires you to think several moves ahead but this shouldnít be too hard since the threats are immediate, there are very few ways to respond. Example 7 gif
That's it. Now go out there and have fun playing omok, IMO the last good thing about MS (except AriantPQ)