[avalanche2006]

Looking for well centered with sharp corners.

7,8,9,10,11,19,21,26,31,34,36,47,50,52,53,56,67,68
71,74,76,77,78,90,92,94,99,103,105,117,167,175,178
179,180,205,210,222,226,233,238,248,250,252,253
254,262,266,268,270,272,285,288,291,295,296,304
316,324,335,360,363,374,384,405,416,440,441,459
470,480,485,496,497,498,502,504,510,513,514,516
519,522,526,530,536,537,538,544,546,552,553,556
559,561,562,564,565,567,568,570,571,572