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  1. \documentclass[dvipdfmx,margin=2mm]{standalone}
  2. \usepackage{tikz}
  3. \begin{document}
  4.  
  5. \begin{tikzpicture}
  6.     \draw [help lines] (0,0) grid (12,12);
  7.     \draw [help lines,dashed] (0,12) -- (12,0);
  8.     \draw [help lines,dashed] (1,12) -- (12,1);
  9.     \draw [help lines,dashed] (2,12) -- (12,2);
  10.     \draw [help lines,dashed] (3,12) -- (12,3);
  11.     \draw [help lines,dashed] (4,12) -- (12,4);
  12.     \draw [help lines,dashed] (5,12) -- (12,5);
  13.     \draw [help lines,dashed] (6,12) -- (12,6);
  14.     \draw [help lines,dashed] (7,12) -- (12,7);
  15.     \draw [help lines,dashed] (8,12) -- (12,8);
  16.     \draw [help lines,dashed] (9,12) -- (12,9);
  17.     \draw [help lines,dashed] (10,12) -- (12,10);
  18.     \draw [help lines,dashed] (11,12) -- (12,11);
  19.  
  20.     \draw [ultra thick] (0,9) -- (3,9) -- (11,1);
  21.     \draw [ultra thick] (1,8) -- (5,8) -- (11,2);
  22.     \draw [ultra thick] (2,7) -- (7,7) -- (11,3);
  23.     \draw [ultra thick] (3,7) -- (8,7) -- (11,4);
  24.     \draw [ultra thick] (4,1) -- (11,1);
  25.     \draw [ultra thick] (5,1) -- (11,1);
  26.     \draw [ultra thick] (6,1) -- (11,1);
  27.     \draw [ultra thick] (7,1) -- (11,1);
  28.     \draw [ultra thick] (8,1) -- (11,1);
  29.     \draw [ultra thick] (9,11) -- (10,11) -- (11,10);
  30.     \draw [ultra thick] (10,10) -- (11,9);
  31.  
  32.     \foreach \x/\y in {0/9, 1/8, 2/7, 3/7, 4/1, 5/1, 6/1, 7/1, 8/1, 9/11, 10/10, 11/9} {
  33.         \node [fill=black,inner sep=0,minimum size=2mm,circle] at (\x,\y) {};
  34.     }
  35. \end{tikzpicture}
  36.  
  37. \end{document}
  38.  
  39.  
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https://ideone.com/aTk44Q
language:
Text (text 6.10)
created:
5 years ago
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