To get a better understanding about San-RenSei and Cosmic Style lets have a more detailled look at Takemiya Masaki and his early Go carreer in the 70th.
This is Go the Natural Way
I’d like to reference to This is Go the Natural Way, an interesting recompilation of articles (commented games) which had been published originally in the Kido Magazine. (Rec.: Kido was for many years since Oct. 1924 the dan-level go magazine of Nihon Ki-in (Japan Go Institute). The publishing was released in 1999/2000.).
Further This is Go the Natural Way contains an appreciation of Takemiya’s style by Ishida Yoshio who was his opponent different times with drawing on a different sample of games, records of which are included in a supplement, and some minor extras.
author: Takemiya Masaki
publisher: Hinoki Press
1st print: 2008
[Rec.: Available in different online shops within a prize range from 20-53 US dollars / 23-54 Euros (plus fees (shipping costs, vat…)), e.g. on Amazon, Alibris, Abebooks.]
Twelve games in total are coveringe the time period from 1969 to 1981. Following list gives the white player first (source: [Sensei’s Library]):
1. Takemiya Masaki – Hashimoto Utaro, 1972-08-08, All Japan No. 1
2. Tournament Kato Masao – Takemiya Masaki, 1974-05-18/19, Honinbo
3. League Takemiya Masaki – Rin Kaiho, 1974-03-28, Pro Best Ten Final
4. Takemiya Masaki – Abe Yoshiteru, 1977-10-06, Oteai
5. Ishida Yoshio – Takemiya Masaki, 1970-12-20/21, Nihon Ki-in Championship
6. Hashimoto Shoji – Takemiya Masaki, 1969-05-22, Pro Best Ten
7. Ishida Yoshio – Takemiya Masaki, 1974-03-03, Nihon Ki-in Championship
8. Yamabe Toshiro – Takemiya Masaki, 1970-06-04, Nihon Ki-in Championship
9. Ishida Yoshio – Takemiya Masaki, 1974-03-30/31, Honinbo Title Match, Game Two
10. Takemiya Masaki – Rin Kaiho, 1974-01-23/24, Honinbo
11. Takemiya Masaki – Honda Kunahisa, 1974-01-14, Meijin League
12. Takemiya Masaki – Cho Chikun, 1981-05-26, Honinbo Title Match, Game 1
To give you a first idea you can go through three of these twelve games against some legendary Go players Takemiya Masaki had played in 1970, 1974 and 1981. All games he won as white and black are available for your individual review on OGS, too (see links under the SGF Screenshot/viewer).
(A) Nihon Ki-in Championship (1970-06-04): Yamabe Toshiro  (white) – Takemiya Masaki (black)
With this game we can see that the 20 year young Takemiya M. (born 01/01/1951) who became a 1 Dan Professional in 1965 already played the classical San-RenSei opening with 3 star points.
1970-06-04-eidogo.sgf (1.4 KB)
(B) Honinbo (1974-01-23/24): Takemiya Masaki (white) – Rin Kaiho  (black)
In this game Takemiya played from left side first with two 4-4 corner stones and then attacking black’s bottom right corner. Lately with move 28 he settled a stronger basis on left side to expand a first wing on bottom inside for a bigger moyo.
1974-01-23-eidogo.sgf (1.4 KB)
(C) Honinbo Title Match (game 1 / 1981-05-26): Takemiya Masaki (white) – Cho Chikun  (black)