Tämä seuraava ongelma on rassannut mieltäni jo monta vuotta. Joka kerta kun avaan vichy-pullon kruunukorkin tällä japanilaistyylistä lautaa muistuttavalla korkinavaalla, niin tämä ongelma muistuttaa itsestään. Tätä on pähkäilty myös dan-treeneissä, mutta mistä oikein on kysymys?

+-O---------------+
|O#O..O...O.#..O..|
|##OO..##OO.####..|
|..OtOO.O#O.OOOO##|
|...####O#.O...OOO#
|O#.....#..#..#.#.|
|OOO#......#....#.|
|.#O..............|
|..#.#............|
|.#O#..........O..|
|OOO...#..........|
|#..#.#....O.O....|
|.....#..OO...OO..|
|O..#...O#...#....|
|O#...#O.#O.O#.OO.|
|OOOOO#O.#.O##.#O.|
O##.#.#O#####O##OO|
|O.#...OO....O..#O|
+---O-----------t-+
Dia: Korkinavaajan ongelma

Sama ongelma myös helpommin spekuloitavana SGF-liitteenä.

-- Vesa 20.2.2003

Uutisia: Hieman oudon informaatiopolun rec.games.go - IGS - Denis Feldmann avulla ratkaisu sattumalta löytyikin. Kts. http://rfg.jeudego.org/anthologie/manoeuvres/page05.html

Huomattavaa on, että korkinavaajassa on yksi ratkaiseva painovirhe, korkinavaajassa kuten myös ylläolevassa kuvasssa E16 (kolmiolla merkitty) on valkea, kun ilmeisestikin alkuperäisessä kirjaongelmassa se on musta.

Siirsin aiemman mielenkiintoisen ratkaisukehittelyn KorkinavaajanOngelmaHistoriaan.

-- Vesa 15.9.2003



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