All About Ko / Errata

Refers to 'First Printing, September 2007'.

p xi, Dokei hanpuku.

Wrong: ... the game is ruled as a no-result is replayed.

Right: ... the game is ruled as a no-result and is replayed.

p21, second paragraph.

Wrong: However, Black 1 in Dia. 11 was worth only 22 points; or 7.33 points per move.

Right: However, Black 1 in Dia. 13 was worth only 22 points; or 7.33 points per move.

p26, penultimate sentence.

Wrong: By setting up a ko with 13 in Dia. 5, then using 15 as a ko threat, White has gained nothing.

Right: By setting up a ko with 13 in Dia. 4, then using 15 as a ko threat, White has gained nothing.

p42.

An oddity: The game is described as being played in the 15th Ryusei league (2007). The SmartGo game id s2006-12-14ng describes the same game as 2006-12-14, Ryusei Cup, 16th, Preliminary Group B, Round 8. I can't determine if the alternative descriptions are both accurate or not.

p43, last paragraph.

Wrong: White has two adjacent ko threats with 13 and 19, so he can answer White's ko threat at 16.

Right: Black has two adjacent ko threats with 13 and 19, so he can answer White's ko threat at 16.

p105, problem 34, last diagram label.

Wrong: Dia. 2. Joseki

Right: Dia. 5. Joseki