"Tarudashi genshu" means "straight from the barrel" and so is roughly similar in meaning to "cask strength". Serge says this one was bought at the distillery but I believe it is available on the Japanese internet (here, here and here, for example).
Review by Nonjatta contributor - Serge Valentin
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"Yamazaki 15 yo (56%, OB, circa 2004)
Colour: Pale amber.
Nose: Even more wood here, Japanese style. Cinnamon, cigar box, cinnamon… Notes of fresh putty and almonds, leaves, tannins… Then chlorophyll, green tea, bay leaves, juniper… Rather ultra-dry. Hints of rubber bands.
Mouth: Punchy and very expressive, with a good fruits/wood combo. A lot of ginger, white pepper, nutmeg, cloves and mint. Peppered quince pie. Let’s see what happens with a little water (while the nose got woodier and more tannic): it got a little rounder, more ‘polished’, but the resinous notes got even bigger. Finish: long and very tannic/peppery.
Comments: Not unlike the old 12yo in style, only bigger and punchier, with more oak and more mint. A tad too much for my taste but it’s good nevertheless.
SGP:371 – 83 points."(Serge`s scoring system is explained on this page.)