% sierpinski3x3.tiles
% 3x3 proofreading construction from sierpinski.tiles
tile edges matches {{N E S W}*}
num tile types=43
num binding types=57
tile edges={
{55 0 0 55}[.1](red)
{56 0 55 1}[.5](magenta1)
{57 0 56 2}[.5](magenta2)
{55 0 57 3}[.5](magenta3)
{1 55 0 56}[.5](purple1)
{2 56 0 57}[.5](purple2)
{3 57 0 55}[.5](purple2)
{7 13 6 4}  (blue3)           % 0+0
{8 15 7 5}  (blue4)     
{6 17 8 6}  (aquamarine4)       
{9 14 5 13} (blue)
{10 16 9 15}(blue2)           
{5 18 10 17}(dark slate gray)           
{11 4 4 14} (blue3)            
{12 5 11 16}(sienna4)           
{4 6 12 18} (dark violet)           
{19 25 3 4}  (green)     % 1+1
{20 27 19 5} (green4)
{6 29 20 6}  (dark green)
{21 26 2 25} (aquamarine1)
{22 28 21 27}(green2)
{5 30 22 29} (green4)
{23 1 1 26}  (green3)
{24 2 23 28} (green2)
{4 3 24 30}  (green1)
{31 37 3 1}  (yellow)         % 1+0
{32 39 31 2} (gold3)          
{3 41 32 3}  (light blue)     
{33 38 2 37} (snow2)          
{34 40 33 39}(yellow2)          
{2 42 34 41} (gold2)          
{35 4 1 38}  (gold)          
{36 5 35 40} (ivory)          
{1 6 36 42}  (yellow2)
{43 49 6 1}  (tan)          % 0+1 
{44 51 43 2} (brown1)     
{3 53 44 3}  (firebrick)
{45 50 5 49} (aquamarine2)
{46 52 45 51}(plum2)
{2 54 46 53} (brown2)              
{47 1 4 50}  (tan2)       
{48 2 47 52} (wheat2)       
{1 3 48 54}  (chocolate1)
}        
binding strengths=
{1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2}