The sanrensei strategy is an influence-based approach rather than a territory-oriented one. The aim is to build a moyo so large that the opponent will be induced to invade or reduce it.
Once this occurs the sanrensei player will use his influence to launch an attack on the opponent’s invading/reducing group(s). Depending on the outcome of the attack, spill-over may occur affecting the opponent’s other groups around the board. It is through this process that the sanrensei player will realize his gains. As such, the sanrensei (and all other moyo based strategies) is a long-term attacking strategy.
The most famous proponent of the sanrensei is Japanese professional Takemiya Masaki. By 1981, his interest became full-blown and commentators nicknamed his play the cosmic style.
In this site you will have test about this opening strategy: http://sanrensei.info/test.php
The test was compiled by Alexander Dinerchtein, 3-dan professional from S.Korea. It was tested on different level players from 20-kyu to 7-dan, but most accurate for single digit kyus.
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