By Rob van Zeijst und Richard Bozulich, engl., 275 pages.
The authors want to bring the reader closer to the principle of Kiai commonly known from martial arts and mostly translated as "Fighting Spirit", through the extensive analysing of 16 chosen professional games.
Professional games are generally full of Kiai, from the wish, to find the best move, to play something unexpected, geniusly and so win the game or outgrow oneself ...
A quote from the "Lexikon der Kampfkünste" by Werner Lind, Berlin 1999, 323 pages f.:
"KIAI (jap): also Yagui, in translation: 'spiritual encounter' or 'the gathering of Energy'. pure objective seen the Kiai is a loud fightingscream in which a student concentrates all his spiritual and physical power in one act. He calls the manifestation of 'Ki' ('Qi') in this technic. Kiai is used in the all-dominant phase of the fight and should in worse case be accompanied with a killing technic ('Chi mei')."