Sashi-uma
	Explained in the text, but to clarify: a sashi-uma game is one between two players alone. The winner is the player with the most points out of those two. The points of the other two players at the table are essentially irrelevant.

Suji
	Suji are sets of numbers associated with double-sided sequence waits. Because waiting on more than one tile is favorable in mahjong, most prediction methods assume a double-sided wait.
	Practical use of suji is based on the safety of furiten. If a player has discarded the 1 of a suit, they cannot be in a double-sided wait for 1 or 4 without being in furiten. Therefore, the 4 is a relatively safe tile.

* Suji sets of numbers are:
	1 & 4
	2 & 5
	4 & 7
	5 & 8
	3 & 6
	6 & 9

Ura-suji
	Again based on the double-sided wait, ura-suji predicts that if a person has a closed wait, for instance, 4 and 6 waiting on a 5, if they recieve a 3 they will discard the 6, changing a less-likely closed wait into a two-sided wait (now 3 and 4 waiting on 2 or 5)

* Ura-suji numbers are:
	1 or 6 -> 2 and 5
	2 or 7 -> 3 and 6
	3 or 8 -> 4 and 7
	4 or 9 -> 5 and 8
	5 -> 1 and 4, or 6 and 9

Suji-hikkake
	There is more than one definition for Suji-hikkake.

	1) Unlike the previsou suji mentioned, this one assumes a closed-wait formation. For instance, if a player had 2-3-4-5-7, and picked up a 9, by dropping the 5 they can have 7-9 waiting on an 8.
	2) Suji-hikkake also refers to waiting on any non-two-sided wait and discarding a suji tile to make lure you opponent into a trap. For instance, discarding the 6 and waiting on a single 9 to make your pair (see the suji numbers for why this is a trap).

* Suji-hikkake numbers (definition 1)	
	4 -> 1 or 7
	5 -> 2 or 8
	6 -> 3 or 9
	
Kabe
	Kabe (lit: wall) is formed when a player knows the position of 3 or 4 of a single tile. Based on the a assumption that most players will ideally create a two-sided wait, you can use kabe to guess at safe tiles.
	For instance, if you know the location of all four 8s in one suit, nobody can be using one of them in a sequence and therefore 9 and 6 are somewhat safer tiles (the 9 especially, since it cannot be used in any other sequence except one involving an 8). This is called a "no-chance" situation. If the locations of only three of the 8s were known, it would be called "one-chance."