Where it comes from
The line in the source
「ブラック・ホワイト」では入れられず、「X・Y」に入れました In English
Only passage about carrying ideas between pair releases (Black/White to X/Y); no explanation of why two versions exist
Explore / Figure
Record
Masuda interview searched for why-two-versions; none found in source, 4 September 2017
0 count 4 September 2017
EstimateOur model or estimate. Treat it as an order of magnitude.