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USE THE
PAUSE BUTTON 
There is only a certain amount of time during each
round that is given for you to make a decision on what you want to
do. Time usually range from 5 to 10 seconds at most. For
beginners, the time allotted sometimes just isn't enough to make a
good decision. This is where the pause button comes into
play. For beginners, this button should be the single most
important button on your keyboard. Use it and use it
often. Pause the game and take your time when making decisions
on what to do next.

PLAN OUT
YOUR HAND 
Plan out what you want to do with your tiles in order
to go out as soon as you see your opening hand. What tiles do you
want to keep and which should you discard. After a couple of
discards, you should have a general idea of what
Yaku conditions you can likely make with your hand and try to stick to it. Try
not to change your plan too much especially during the later parts
of the round. It may be too late then. It's better to stick to your
initial plan than to change it later and then regret making that
change. 
AIM FOR
THE EASY YAKUS 
Always aim for the easiest Yaku conditions to win.
The most common and easiest Yakus to get are from declaring Reach,
going out with a Fanpai, going out with an All Simple hand, or going
out with a No Points/All Chi hand.
Of course, if you have the opportunity or chance to get a bigger
hand, go for it. You might be lucky. Just don't do it all the time
:) Remember as well that Doras do not count as Yakus and cannot be
used as a method of going out. They are only counted in as Fans for
scoring. 
BE AWARE
WHEN MAKING REVEALED SETS 
Never make a revealed set unless you know already
what Yaku conditions you are going for with your hand. Never make a
revealed set just because the opportunity is given to you. Doing so
will often times leave you in a bad situation where you cannot win
at all simply because your hand is worth absolutely nothing.
Also,
remember your Yakus. Know that some of them allow you to have
revealed sets while others do not. An all Chi hand, one of the
easier hands to get, is worth 1 Yaku if your hand is concealed.
However, it is worth absolutely nothing if your hand is revealed,
which means that you cannot go out with this hand unless your hand
is worth something else.
Some Yaku conditions even downgrade in
value by 1 Yaku if your hand is revealed instead of concealed as
well. A Clean Hand, for example, is worth 3 Yakus if your hand is
concealed. However, it is worth only 2 Yakus if your hand is
revealed.
If you know what Yaku conditions you are going for, then
making revealed sets is a great and easy way for quick and sometimes
big wins, simply because you have more tiles to choose from when
making your hand. You get to use tiles you draw as well as tiles
discarded by the opponent. Many of the bigger hands allow you to have
revealed sets as well.
All in all, just remember that you should
know what Yaku or Yakus you are going for if you decide on making
revealed sets in your hand. Do not make it if you don't. 
KNOW YOUR
YAKUS 
Don't always try to go for the same Yakus each time
you play. Diversify your game by learning each of the Yaku
conditions in mahjong. Focus more on the 1 and 2 Fan Yakus since
those are the main ones made during play. Still it wouldn't hurt to
learn the rest or simply be familiar with them. The more Yakus you
know, the more options you have to select from when deciding on what
to make with your hand. With more options come better odds of
winning as well. 
DON'T
THINK YOU CAN WIN EVERY ROUND 
Realize that you cannot win every round. If tiles are
running out, the opponent declares Reach, and you have nothing close
to a complete hand, try not to let the opponent win. Play
defensively for a change. It's better to
get Noten or Tenpai at the end of the round and lose a little than
it is to see a bunch of your points taken away if the opponent
happens to win.
Check your opponent's discards. If the game features the Furiten
rule, which is often the case, she can declare Tsumo but cannot
declare Ron with any tile that she has previously discarded. Check
her discard pile and discard the tiles within it to try and decrease
her chances from going out. 
147 DEFENSE 
147 is a defensive strategy that can be used when deciding what to and what not to discard. It is a strategy that can be used because of the furiten rule. For example, if the opponent discarded a 4 dot tile, it would be safe for you to discard a 4 dot tile as well since the opponent cannot go out by Ron on a tile that she has discarded previously under the furiten rule. Additionally it may also be safe to discard the 1 dot and the 7 dot tile. The reason is that if the opponent is waiting to go out on a chi, she would not be allowed to make a 123 or 234 with a 23 dot tile waiting combination or a 456 or 567 with a 56 dot tile waiting combination by Ron because the 4 is a sacred discard. Therefore the 1 or 7 will also be sacred discards under the furiten rule with either of the two waiting tile combinations. As a result the 1 or 7 are safe tiles to discard. 258 and 369 tile sets also apply.
Additional, if the opponent is waiting to go out with a 34567 tile combination and happens to have already discarded a 5, then it would be safe to discard either the 2, 5, or 8 tile since each of the three are sacred discards.
Of course, there is no guarantee that this defensive strategy will work 100% of the time as in the case when the opponent is not waiting to go out on a chi but something else. However, because a chi is most likely what a player may wait to go out on since it provides 2 different tiles to go out with, this strategy can be used to provide more options for safe discardable tiles. 
INCREASE
YOUR PROBABILITY OF WINNING 
One of the most simple and fundamental strategy of mahjong is to increase your probability of going out. The more options you have to create a mahjong, the more likely you
are to win the round.
Let's say, for example, you have in your hand 4 complete sets and
a 1dot tile. In order to go out, you need another 1dot
tile to create a pair and complete the hand. In this case you
have only one option to go to in order to mahjong which is the 1dot tile.
To go out you need a
Now let's say you have in your hand 3 complete sets and 2
pairs. Maybe you have a pair of 5dots and another pair of red
dragons. In order to go out, you need to make one of your
pairs into a set. Now instead of having one option to go out,
you have two options. Your probability of winning just about
doubled.
To go out you need either a
or a
Now let's say you have in your hand 2 complete sets, a pair, and a
group of 5 consecutives. Maybe your 5 consecutive tiles are
the bamboo type, numbers 2, 3, 4, 5 and 6. To go out, you now
need a 1, 4, or 7 to make two sets and complete the hand. You
now have three different options and your odds of winning further
increases.
To go out you need either a
or a or a
You guys get the picture. Read the next section below
for even more variations. 
TENPAI
HAND : WAITING FOR... 
Tenpai is the name given to a hand that is one short of a tile to be a complete hand. Several Tenpai hand variations exist. Many, as stated above, can
increase your chances of going out by having more tile possibilities
to choose from. Here are some examples of a Tenpai hand:
Waiting For : 

Tanki : 
A hand of any 4 sets
and one other tile. The tile needed is the tile to make a pair.
There is 1 possible tile to go out with. 

To go out, you need a


Ryanmen : 
A hand of any 3 sets, a
pair, and an incomplete Chi. The tile needed to go out is either the
tile before or after the incomplete Chi.
There are 2 possible tiles to go out with. 

To go out, you need a
or


Kanchan : 
A hand of any 3 sets, a
pair, and an incomplete Chi. The tile needed to go out is the tile
in the middle of the incomplete Chi.
There is 1 possible tile to go out with. 

To go out, you need a


Penchan : 
A hand of any 3 sets, a
pair, and an incomplete Terminal Chi. The tile needed to go out is the tile
before or after the incomplete Terminal Chi. Only 1,2,3 and 7,8,9 types
apply.
There is 1 possible tile to go out with. 

To go out, you need a


Shanpon : 
A hand of any 3 sets
and 2 pairs. The tile needed to go out can be a tile from either
pairs. One pair would stay a pair, the other would change to a Pon.
There are 2 possible tiles to go out with. 

To go out, you need either a
or a


Ryanmentanki : 
A hand of any 3 sets
and a sequence (consecutive) of 4 tiles. The tile needed to go out
can be the 1st tile of the sequence or the last in order to make a
pair and Chi.
There are 2 possible tiles to go out with. 

To go out, you need either a
or


Sanmenten
: There are 3 types. 

1) Ryanmenten : 
A hand of any 2 sets, a
pair, and a sequence of 5 tiles. The sequence should not contain a 1
or 9. The tile needed to go out can be the tile before or after the
sequence or the tile in the middle of the sequence to make 2
additional Chi.
There are 3 possible tiles to go out with. 

To go out, you need either a
or or



2) Ryanmentanki : 
A hand of any 2 sets
and a sequence of 7 tiles. The tile needed to go out can be the 1st
tile in the sequence, the last tile (7th), or the middle tile (4th).
Doing so will make 2 additional Chi and a pair.
There are 3 possible tiles to go out with. 
0000

To go out, you need either a
or or



3) Name Unknown : 
A hand of any 3 sets, a
Pon, and another tile that is the tile that is before the tile
contained in the Pon. The tile needed to go out can be the tile
before the single tile, the single tile itself, or the tile that
follows the tile in the Pon. Damn, I'm confused. The example below
should explain it more clearly.
There are 3 possible tiles to go out with. 

To go out, you need either a
or
or


Name Unknown : 
A hand consisting of
the following numbered tiles; all of which are of the same suit.
(2,3,4,4,5,5,5,6,6,7,7,8,8)
There are 5 possible tiles to go out with. 

To go out you need either a
or or
or or 

Name Unknown : 
A hand consisting of
the following numbered tiles; all of which are of the same suit.
(2,3,4,4,4,5,5,5,6,6,6,7,8)
There are 7 possible tiles to go out with. 

To go out, you need either a
or or
or or
or or 

Chuuren Pooto 9men Machi : 
A hand consisting of
the following numbered tiles; all of which are of the same suit.
(1,1,1,2,3,4,5,6,7,8,9,9,9)
There are 9 possible tiles to go out with. 
0000 
To go out, you need either a
or or
or
or or
or or
or 
There are many more as well.

MORE
PROBABILITIES 
Besides trying to go out with multiple tile
possibilities, also make sure that the tiles you are waiting to go
out on are still available to be drawn. It's no good when you are
waiting for a tile that is no longer available to be drawn since all
4 of them have been played already. Say, for example, you have 3
sets and 2 pairs. You need to make one of the pairs into a set in
order to go out. For this hand, you have two possible tiles to go
out with. Also, you should know that you may have at least 2 of each
of those tiles left to be played in the game. This means that out of
the remaining tiles left to be drawn, you can win with at least 4 of
them. That is, if you or the opponent have not discarded one of
those tiles and that the opponent does not have one or all of those
tiles that you need to win with in her hand.
Another example is having a hand consisting of 2 sets, a pair,
and a sequence of 5 tiles. If the sequence does not begin with a 1
or end with a 9, then you have 3 different tiles to choose from to
go out with. There may be as much as 11 tiles to win with as well.
If the sequence is a 26 of bamboo tiles, then there may be as much
as four 1bamboo tiles left in the game, three 4bamboo tiles (you
have one of the four already in the sequence), and four 7bamboo
tiles, making eleven tiles that can win you the game. Again, that
is, if none of these tiles have already been played in the game. Of course, I do not take into account the fact that not all tiles
are played in a single round of mahjong. There are 136 tiles,
totaled, in the game. Typically, only around 62 tiles are played
each round in video mahjong since there are only two players
playing. Since barely half the tiles are played in video mahjong, it
is a very good idea to try and win with multiple tile possibilities
:) 
