Labels:box | door | orange | sky | skyscraper | star | windowpane OCR: page5 of 28 MEDUSA Diagram initial posit General r'll start from the premisse that the reader is familiar with the rules of the game of Go. In 1975 Mark Berger invented 'Rosette' a Go variant played on the intersections (triple contacts) of a hexagonal board such as the above but smaller and witlexed b the same colour His first idea was to simply apply the rules of Go and see how worked out. At turned out regular concepts like 'ko and 'seki' remained intact, but there was big differevtren group was ir 'atari' that is: when it had just one liberty left. In Go point has four liberties and extendifrgm a group in atari may increase the number of its liberties by Rosette an extensiorincreases that number at most by and this one or the other) consequently taken keep thegroup in atari. The attack ...