Honinbo Dosaku vs. Yasui Santetsu Ⅱ

Honinbo Dosaku vs. Yasui Santetsu Ⅱ Dōsaku was one of the greatest Go players in history. He was born in the Iwami Province of Japan and studied Go in the Honinbō school, becoming Meijin at a young age. It has been suggested that the true level of his playing strength was never really tested, given the distance between him and his nearest rivals. Dōsaku is also well remembered for his contributions to Go theory. He took advantage of overconcentration also known as korigatachi, making that henceforth one of the key theoretical errors that players avoided. Tewari analysis, a systematic tool of analysis of efficiency of sequences, is also attributed to him. Yasui Santetsu Ⅱwas one of Dosaku`s rivals, playing with White against Dosaku at first, and eventually taking a one-stone handicap. He was a prominent Go player, finally promoting to 7-dan. However, he became more famous as the astronomer who introduced the Jokyo calendar in 1684, improving accuracy by adjusting calculations for solar and lunar positions. His work was supported by Edo-period scholars and officials, establishing him as the first official astronomer of the Tokugawa Shogunate. He retired from Go in 1685 to focus entirely on astronomy and was granted samurai status, changing his name to Shibukawa Harumi. There is a video of me playing the moves of this game out on a real board without commentary    • Attack and Sacrifice: Honinbo Dosaku vs. Y...   GoldenEra Playlist    • The Golden Era of Go   GoldenEra1 Honinbo Sansa vs. Rigen    • Sansa vs. Rigen Starting the Golden Era of Go   GoldenEra2 Nakamura Doseki vs. Yasui Santetsu    • Doseki vs. Santetsu  The Golden Era of Go   GoldenEra3 Nakamura Doseki vs. Hayashi Monnyusai    • Doseki vs. Hayashi Monnyusai The Golden Er...   GoldenEra4 Nakamura Doseki vs. Inoue Genkaku Inseki    • Doseki vs. Inoue Genkaku Inseki The Golden...   GoldenEra5 Honinbo Sanetsu vs. Yasui Sanchi The first challenge match    • Honinbo Sanetsu vs. Yasui Sanchi the first...   GoldenEra6 Yasui Sanchi's 2nd Challenge Match    • Sanchi's 2nd Challenge Match   GoldenEra6 Yasui Sanchi vs. Honinbo Doetsu Decisive Game    • Sanchi vs. Doetsu Challenge Match   Support my channel at Patreon   / michaelredmond   Subscribe to my You Tube channel for easy access to more Go videos with game analysis, basic and AI josekis, and more!    / @michaelredmondsgotv   playlist: AlphaGo vs the World    • AlphaGo vs. The World:  AlphaGo対世界日本語字幕：Ma...   suggested video: The Direct 3-3 Invasion Keep it Simple!    • The Direct 3-3 Invasion  Keep it Simple!   Sign up to my Twitter channel!   / redmondgopro