Winslow - one the best thriller writers working today (Savages, Power of the Dog) - was so taken by Trevanian's Shibumi that he took the character and ran with it. This is not a farmed-out hack job but a superb, deeply-considered expansion of the original. He pulled it off, big time: it blew me away.
Possibly the most elegantly wicked of the cold war thrillers, Trevanian's masterpiece was a hit in 1979 and delivers just as much pleasure today with its exquisite plotting, biting wit and snarky geopolitics. The Russo-Japanese Go master/assassin protagonist is so compelling the great Don Winslow (Savages, Power of the Dog) was inspired to resurrect him in the new smasher Satori.