Not exactly what I was searching for but interesting nonetheless!

Coins

This is a very different way of reading coins than I follow (which I discovered courtesy of Wikipedia). I found it quite interesting though and wanted to share.

Three-coin method

Two heads and one tail of the original I-Ching Divination Coins.

The three coin method came into currency over a thousand years later. The quickest, easiest, and most popular method by far, it has largely supplanted the yarrow stalks, but produces outcomes with different likelihoods. Three coins are tossed at once. Each coin is given a value of 2 or 3 depending upon whether it is tails or heads respectively. Six such tosses make the hexagram.

Two-coin method

Some purists contend that there is a problem with the three-coin method because its probabilities differ from the more ancient yarrow-stalk method. In fact, over the centuries there have even been other methods used for consulting the oracle.

The two-coin method involves tossing one pair of coins twice: on the first toss, two heads give a value of 2 and anything else is 3; on the second toss, each coin is valued separately, to give a sum from 6 to 9, as above. This results in the same distribution of probabilities as for the yarrow-stalk method

Four coins

With tails assigned the value 0 and heads the value 1, four coins tossed at once can be used to generate a four-bit binary number, the right-most coin indicating the first bit, the next coin indicating the next bit, etc. The number 0000 is called old yin; the next three numbers—0001, 0010, and 0011 (the binary numbers whose decimal equivalents are 1, 2, and 3, respectively)—are called old yang, with a similar principle applied to the remaining twelve outcomes. This gives identical results to the yarrow-stalk method.

Coins Binary Decimal Line T T T T 0000 0 ---x--- T T T H 0001 1 ---o--- T T H T 0010 2 ---o--- T T H H 0011 3 ---o---

Decimal Coins Line 4 T H T T ------- 5 T H T H ------- 6 T H H T ------- 7 T H H H -------

Decimal Coins Line 8 H T T T ------- 9 H T T H --- --- 10 H T H T --- --- 11 H T H H --- ---

Decimal Coins Line 12 H H T T --- --- 13 H H T H --- --- 14 H H H T --- --- 15 H H H H --- ---

The two-coin method described above can be performed with four coins, simply by having one pair of coins be alike—of the same size or denomination—while the other two are of a different size or denomination; the larger coins can then be counted as the first toss, while the two smaller coins constitute the second toss (or vice versa).

Six coins

Six coins—five identical coins and one different—can be thrown at once. The coin that lands closest to a line drawn on the table will make the first line of the hexagram and so on, heads for yang, tails for yin. The distinct coin is a moving line. This has the dual failings that it forces every hexagram to be a changing hexagram, and it only ever allows exactly one line to be changing.

Eight coins on Ba Qian

Eight coins, one marked, are tossed at once. They are picked up in order and placed onto a Bagua diagram; the marked coin rests on the lower trigram. The eight process is repeated for the upper trigram. After a third toss the first six coins are placed on the hexagram to mark a moving line. This has the deficiency or allowing at most one moving line whereas all six lines could be moving in traditional methods.

taken from Wikipedia