World
Game
Of
Sprouts
Association
Aunt Beast Comments on Three Puzzles in 9-
March 2, 2008
In First Iteration of Solutions to Three Puzzles in 9-, Danny Purvis writes:
Puzzle 1: 9- 1(10)2 1(11)10[2] 1(12)11[3,4] 5(13)5[6,7]. How does
Left win?
"Solution": Apologies all around. I thought I saw a fairly easy win
for Left, but
now I believe that Right actually wins. I have not worked out a clean
analysis,
however. I hope to post something more definitive in a few days.
Correct, this is a win for Right according to Aunt Beast.
Puzzle 2: 9- 1(10)2 1(11)10[2] 1(12)11[3,4] 3(13)12. How does Left
win?
Solution: Having spent all of my time on puzzle 1, I have not
thoroughly
checked my solution for this puzzle. But Left seems to win with
3(14)3.
Sphere S(5) will not yield four survivors, since after 5(15)5[6,7]
3(16)13
Left has TM.
Correct. There are exactly two winning moves here: 3(14)3 and 5(14)5.
Puzzle 3: 9- 1(10)2 1(11)10[2] 1(12)11[3,4]. How does Right win?
Solution: If I am correct about Puzzle 1 winning for Right, then
Puzzle 1 is a
complete answer. I had another move in mind, which only means that
this
puzzle should be abandoned.
There are 4 winning moves from this position: 2(13)2, 5(13)5[6],
5(13)5[6,7], and 5(13)6.
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