Akira Haraguchi
Akira Haraguchi has memorized pi up to 111,700 digits as of 2015.
According to online articles, he uses a type of phonetic system, similar to the major system, where the mnemonic images are strung together into stories.
I have created about 800 stories, whose lead characters are mostly animals and plants. For the first 100 digits of pi, I have crafted a story about humans. Here is how the first 50 digits, starting with 3.14, reads: βWell, I, that fragile being who left my hometown to find a peace of mind, is going to die in the dark corners; itβs easy to die, but I stay positive.β
Part of the mnemonic key:
οΌγ β γ γγ γγ γγ γγ γγ γγ γγ γγ
οΌγ β γ γγ γγ γγ γγ γ²γ γ³γ γ΄γ γγγ γ²γγ γ²γγγ γ³γγ γ³γγAnother example mnemonic is:
In his January 2006 book titled βBucchigiri Sekai Kiroku Hojisha no Kiokujutu (The Memorization Skills of a Whopping World-record Holder),β he explains that the first 15 digits of pi, which are 3.14159265358979, can be memorized as βsaishi ikokuni mukosan kowakunakuβ β which roughly translates as: βThe wife and children have gone abroad; the husband is not scared.β
(The meaning of the first digits may be lost in translation, since the examples donβt seem to match.)
