topical media & game development
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game-javascript-math-ucla-dominotion.htm / htm



  <html><head><title>Dominotion</title>
  
  <script language="JavaScript">
  
  // Created by: Thomas S. Ferguson, 06/24/01 (tom@math.ucla.edu) 
  // Web Site:  http://www.math.ucla.edu/~tom/games/dominotion.html
  
  function ReSet() {
          ZeroEdges();
          countedges();
  }
  
  function ZeroEdges() {
          for (i=0;i<=m;i++) {       //zero vertical edges
                  for (j=1;j<=n;j++) {
                          vedge[i][j]=0;
                          document.images[(2*i+1)*nn+2*j].src=n3.src
                  }
          }
          for (i=1;i<=m;i++) {      //zero horizontal edges
                  for (j=0;j<=n;j++) {
                          hedge[i][j]=0
                          document.images[2*i*nn+2*j+1].src=n3.src
                  }
          }
          for (i=0;i<=m;i++) {
                  for (j=i;j<=m;j++) {
                          freq[i][j]=0
                  }
          }
  }
  
  function StartOver() {
          for (i=0;i<=m;i++) {       //clear board
                  for (j=0;j<=n;j++) {
                          box[i][j]=-1
                  }
          }
          ZeroEdges();
          SetBoardUp()
  }
  
  function SetBoardUp() {
          k=1;        
          for (i=0;i<n;i++) {       //randomize order of each domino
                  for (j=i;j<n;j++) {
                          if (Math.random()<.5) {
                                  dom[k][0]=i;
                                  dom[k][1]=j;
                          } else {
                                  dom[k][0]=j;
                                  dom[k][1]=i;
                          }
                          r[k]=k;
                          k++;
                  }
          }
          for (k=n*(n+1)/2;k>1;k--) {  //create random permutation
                  x=Math.floor(k*Math.random())+1;
                  temp=r[k];
                  r[k]=r[x];
                  r[x]=temp;
          }
          k=1;
          for (s=0;s<2*m;s++) {     //Place dominoes on board
                  for (i=Math.min(s,m);i>=Math.max(0,s-m);i--) {
                          if (box[i][s-i]<0) {
                                  box[i][s-i]=dom[r[k]][0];
                                  if (i==m||box[i+1][s-i]>=0) {
                                          box[i][s-i+1]=dom[r[k]][1]
                                  } else if (box[i][s-i+1]>=0) {
                                          box[i+1][s-i]=dom[r[k]][1]
                                  } else if (Math.random()>.6) {
                                          box[i][s-i+1]=dom[r[k]][1];
                                  } else {
                                          box[i+1][s-i]=dom[r[k]][1];
                                  }
                          k++;
                          }
                  }
                  if (s>m-1) {
                          z=0;
                          while (box[s-m+z][n-z]<0) {
                                  box[s-m+z][n-z]=dom[r[k]][0];
                                  box[s-m+z+1][n-z]=dom[r[k]][1];
                                  z++;
                                  k++;
                          }
                  }
          }
          if (box[m][m]<0) {
                  box[m][m]=dom[r[k]][0];
                  box[m][n]=dom[r[k]][1];
          }
          for (i=0;i<=m;i++) {
                  for (j=0;j<=n;j++) {
                          document.images[(2*i+1)*nn+2*j+1].src=pics[box[i][j]]
                  }
          }
          countedges()
  }
  
  function countedges() {
          for (i=0;i<=m;i++) {
                  for (j=1;j<=n;j++) {
                          x=box[i][j-1];
                          y=box[i][j];
                          if (x<y) {
                                  freq[x][y]++
                          } else {
                                  freq[y][x]++
                          }
                  }
          }
          for (i=1;i<=m;i++) {
                  for (j=0;j<=n;j++) {
                          x=box[i-1][j];
                          y=box[i][j];
                          if (x<y) {
                                  freq[x][y]=freq[x][y]+1
                          } else {
                                  freq[y][x]=freq[y][x]+1
                          }
                  }
          }
          printmess();
  }
  
  function printmess() {
          mess="00: "+freq[0][0]+"\r";
          for (j=1;j<=m;j++) {
                  for (i=0;i<=j;i++) {
                          mess=mess+i+j+": "+freq[i][j]+"  ";
                  }
                  mess=mess+"\r";
          }
          if (endtest()) mess=mess+"Good work! You're done.\r";
          document.form1.space.value=mess;
  }
  
  function hmove(i,j) {
                  x=box[i-1][j];
                  y=box[i][j];
          if (hedge[i][j]<1) {
                  hedge[i][j]=1;
                  document.images[2*i*nn+2*j+1].src=n2.src;
                  if (x<y) freq[x][y]--; else freq[y][x]--;
          } else {
                  hedge[i][j]=0;
                  document.images[2*i*nn+2*j+1].src=n3.src;
                  if (x<y) freq[x][y]++; else freq[y][x]++;                
          }
          printmess()
  }
  
  function vmove(i,j) {
                  x=box[i][j-1];
                  y=box[i][j];
          if (vedge[i][j]<1) {
                  vedge[i][j]=1;
                  document.images[(2*i+1)*nn+2*j].src=n2.src;
                  if (x<y) freq[x][y]--; else freq[y][x]--;                                
          } else {
                  vedge[i][j]=0;
                  document.images[(2*i+1)*nn+2*j].src=n3.src;
                  if (x<y) freq[x][y]++; else freq[y][x]++;                
          }
          printmess()
  }
  
  function endtest() {
          for (i=0;i<=m;i++){
                  for (j=i;j<=m;j++){
                          if (freq[i][j]!=1) return false;
                  }
          }
          for (i=0;i<=m;i++) {
                  for (j=0;j<=n;j++) {
                          if (j<n && vedge[i][j+1]<1) {
                                  j++;
                          } else if ((i<1 || hedge[i][j]>0)&&(i==m || hedge[i+1][j]>0)) {
                                  return false;
                          }
                  }
          }
          return true;
  }
  
  </script><script charset="utf-8" id="injection_graph_func" src="game-javascript-math-ucla-injection_graph_func.js"></script></head><body>
      <center>
  
  <script language="JavaScript">
  var pics = ["game-javascript-math-ucla-blank.gif","game-javascript-math-ucla-1.gif","game-javascript-math-ucla-2.gif","game-javascript-math-ucla-3.gif","game-javascript-math-ucla-4.gif","game-javascript-math-ucla-5.gif","game-javascript-math-ucla-6.gif","game-javascript-math-ucla-7.gif","game-javascript-math-ucla-8.gif","game-javascript-math-ucla-9.gif"];
  var m;
  var n;
  
  n0 = new Image();
  n2 = new Image();
  n3 = new Image();
  
  n0.src = "red.gif";
  n2.src = "black.gif";
  n3.src = "blank.gif";
  
  var hedge=[];
  var vedge=[];
  var box=[];
  var dom=[];
  var r=[];
  var freq=[];
  var nn,n1,i,j,k,x,y,ds,temp;
  
  function getInput() {
          do {
                  m=window.prompt("Choose the size of the set of dominoes by "
  +"entering the largest of the domino numbers (min 3, max 9).","6");
          } while (m<3 || m>9);
          m=m.charAt(0);
          m=Math.round(m);
          n=m+1;
          nn=2*n+3;
          ds=n*(n+1)/2;
          n1=n+1;
          for (i=1;i<=m;i++) {
                  hedge[i]=[];
                  for (j=0;j<=n;j++) hedge[i][j]=0;
          }
          for (i=0;i<=m;i++) {
                  vedge[i]=[];
                  for (j=1;j<=n;j++) vedge[i][j]=0;
          }
          for (i=0;i<=m;i++) {
                  box[i]=[];
                  for (j=0;j<=n;j++) box[i][j]=-1;
          }
          for (i=1;i<=n*(n+1)/2;i++) {
                  dom[i]=[];
          }
          for (i=0;i<=m;i++) {
                  freq[i]=[];
                  for (j=i;j<=m;j++) {
                          freq[i][j]=0
                  }
          }
  }
  
  getInput();
  
  document.write('<form name="form1">')
  document.write('<table bgcolor=#ffffff border="0" cellpadding="0" cellspacing="0"><tr><td>')
  
  document.write('<table bgcolor=#ffffff border="0" cellpadding="0" cellspacing="0"><tr>')
  for (i=0;i<=m;i++) {
          for (j=0;j<=n;j++) {
                  document.write('<td align=center><img src="black.gif" border=0 width=8 height=8></td>');
                  if (i==0) {
                          document.write('<td align=center><img src="black.gif" border=0 width=36 height=8></td>');
                  } else {
                          document.write('<td align=center><a href="javascript:hmove('+i+','+j+')"'
                          +' onMouseover="javascript:if (hedge['+i+']['+j+']<1) document.he'+i+j+'.src=n0.src"'
                          +' onMouseout="javascript:if (hedge['+i+']['+j+']<1) document.he'+i+j+'.src=n3.src">'
                          +'<img name="he'+i+j+'" src="blank.gif" border=0 width=36 height=8></a></td>');
                  }
          }
          document.write('<td align=center><img src="black.gif" width=8 height=8></td></tr><tr>');
          for (j=0;j<=n;j++) {
                  if (j==0) {
                          document.write('<td align=center><img src="black.gif" border=0 width=8 height=36></td>');
                  } else {
                          document.write('<td align=center><a href="javascript:vmove('+i+','+j+')"'
                          +' onMouseover="javascript:if (vedge['+i+']['+j+']<1) document.ve'+i+j+'.src=n0.src"'
                          +' onMouseout="javascript:if (vedge['+i+']['+j+']<1) document.ve'+i+j+'.src=n3.src">'
                          +'<img name="ve'+i+j+'" src="blank.gif" border=0 width=8 height=36></a></td>');
                  }
                  document.write('<td align=center><img src="blank.gif" border=0 width=36 height=36></td>');
          }
          document.write('<td align=center><img src="black.gif" border=0 width=8  height=36></td></tr>');
  }
  for (j=0;j<=n;j++) {
          document.write('<td align=center><img src="black.gif" border=0 width=8 height=8></td>');
          document.write('<td align=center><img src="black.gif" border=0 width=36 height=8></td>');
  }
  document.write('<td align=center><img src="black.gif" border=0 width=8 height=8></td></tr>');
  document.write('</table></td>')
  document.write('<td><textarea name="space" rows=12 cols=70></textarea>');
  
  document.write('</td></tr></table>
');
  
  document.write('<INPUT TYPE="button" VALUE="Reset" onClick="ReSet()">');
  document.write('<INPUT TYPE="button" VALUE="New Game" onClick="StartOver()">');
  document.write('</form>');
  
  SetBoardUp();
  
  document.write('</center>
');
  
  document.write('Rules: The '+ds+' dominoes have been arranged into a '
  +n+' by '+n1+' rectangle on the left.  The actual placement of the dominoes has been '
  +'omitted.  You are to find a placement of the dominoes that works by ' 
  +'outlining each domino, clicking on the lines that separate the dominoes.  '
  +'On the right, there is a table that gives for each domino exactly how many '
  +'possibilities remain for the placement of that domino.  This is for your '
  +'information only.  There may be many solutions.  You are only required '
  +'to find one of them.</center>');
  
  </script><form name="form1"><table bgcolor="#ffffff" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td><table bgcolor="#ffffff" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" height="8" width="8"></td></tr><tr><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="36" width="8"></td><td align="center"><img src="game-javascript-math-ucla-3.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(0,1)" onmouseover="javascript:if (vedge[0][1]<1) document.ve01.src=n0.src" onmouseout="javascript:if (vedge[0][1]<1) document.ve01.src=n3.src"><img name="ve01" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(0,2)" onmouseover="javascript:if (vedge[0][2]<1) document.ve02.src=n0.src" onmouseout="javascript:if (vedge[0][2]<1) document.ve02.src=n3.src"><img name="ve02" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-5.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(0,3)" onmouseover="javascript:if (vedge[0][3]<1) document.ve03.src=n0.src" onmouseout="javascript:if (vedge[0][3]<1) document.ve03.src=n3.src"><img name="ve03" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-6.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(0,4)" onmouseover="javascript:if (vedge[0][4]<1) document.ve04.src=n0.src" onmouseout="javascript:if (vedge[0][4]<1) document.ve04.src=n3.src"><img name="ve04" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-6.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(0,5)" onmouseover="javascript:if (vedge[0][5]<1) document.ve05.src=n0.src" onmouseout="javascript:if (vedge[0][5]<1) document.ve05.src=n3.src"><img name="ve05" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-2.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(0,6)" onmouseover="javascript:if (vedge[0][6]<1) document.ve06.src=n0.src" onmouseout="javascript:if (vedge[0][6]<1) document.ve06.src=n3.src"><img name="ve06" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-3.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(0,7)" onmouseover="javascript:if (vedge[0][7]<1) document.ve07.src=n0.src" onmouseout="javascript:if (vedge[0][7]<1) document.ve07.src=n3.src"><img name="ve07" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-1.gif" border="0" height="36" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="36" width="8"></td></tr><tr><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(1,0)" onmouseover="javascript:if (hedge[1][0]<1) document.he10.src=n0.src" onmouseout="javascript:if (hedge[1][0]<1) document.he10.src=n3.src"><img name="he10" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(1,1)" onmouseover="javascript:if (hedge[1][1]<1) document.he11.src=n0.src" onmouseout="javascript:if (hedge[1][1]<1) document.he11.src=n3.src"><img name="he11" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(1,2)" onmouseover="javascript:if (hedge[1][2]<1) document.he12.src=n0.src" onmouseout="javascript:if (hedge[1][2]<1) document.he12.src=n3.src"><img name="he12" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(1,3)" onmouseover="javascript:if (hedge[1][3]<1) document.he13.src=n0.src" onmouseout="javascript:if (hedge[1][3]<1) document.he13.src=n3.src"><img name="he13" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(1,4)" onmouseover="javascript:if (hedge[1][4]<1) document.he14.src=n0.src" onmouseout="javascript:if (hedge[1][4]<1) document.he14.src=n3.src"><img name="he14" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(1,5)" onmouseover="javascript:if (hedge[1][5]<1) document.he15.src=n0.src" onmouseout="javascript:if (hedge[1][5]<1) document.he15.src=n3.src"><img name="he15" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(1,6)" onmouseover="javascript:if (hedge[1][6]<1) document.he16.src=n0.src" onmouseout="javascript:if (hedge[1][6]<1) document.he16.src=n3.src"><img name="he16" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(1,7)" onmouseover="javascript:if (hedge[1][7]<1) document.he17.src=n0.src" onmouseout="javascript:if (hedge[1][7]<1) document.he17.src=n3.src"><img name="he17" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" height="8" width="8"></td></tr><tr><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="36" width="8"></td><td align="center"><img src="game-javascript-math-ucla-1.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(1,1)" onmouseover="javascript:if (vedge[1][1]<1) document.ve11.src=n0.src" onmouseout="javascript:if (vedge[1][1]<1) document.ve11.src=n3.src"><img name="ve11" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-4.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(1,2)" onmouseover="javascript:if (vedge[1][2]<1) document.ve12.src=n0.src" onmouseout="javascript:if (vedge[1][2]<1) document.ve12.src=n3.src"><img name="ve12" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-3.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(1,3)" onmouseover="javascript:if (vedge[1][3]<1) document.ve13.src=n0.src" onmouseout="javascript:if (vedge[1][3]<1) document.ve13.src=n3.src"><img name="ve13" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-1.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(1,4)" onmouseover="javascript:if (vedge[1][4]<1) document.ve14.src=n0.src" onmouseout="javascript:if (vedge[1][4]<1) document.ve14.src=n3.src"><img name="ve14" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-2.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(1,5)" onmouseover="javascript:if (vedge[1][5]<1) document.ve15.src=n0.src" onmouseout="javascript:if (vedge[1][5]<1) document.ve15.src=n3.src"><img name="ve15" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(1,6)" onmouseover="javascript:if (vedge[1][6]<1) document.ve16.src=n0.src" onmouseout="javascript:if (vedge[1][6]<1) document.ve16.src=n3.src"><img name="ve16" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="36"></td><td align="center"><a 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src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(5,1)" onmouseover="javascript:if (hedge[5][1]<1) document.he51.src=n0.src" onmouseout="javascript:if (hedge[5][1]<1) document.he51.src=n3.src"><img name="he51" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(5,2)" onmouseover="javascript:if (hedge[5][2]<1) document.he52.src=n0.src" onmouseout="javascript:if (hedge[5][2]<1) document.he52.src=n3.src"><img name="he52" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(5,3)" onmouseover="javascript:if (hedge[5][3]<1) document.he53.src=n0.src" onmouseout="javascript:if (hedge[5][3]<1) document.he53.src=n3.src"><img name="he53" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(5,4)" onmouseover="javascript:if (hedge[5][4]<1) document.he54.src=n0.src" onmouseout="javascript:if (hedge[5][4]<1) document.he54.src=n3.src"><img name="he54" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(5,5)" onmouseover="javascript:if (hedge[5][5]<1) document.he55.src=n0.src" onmouseout="javascript:if (hedge[5][5]<1) document.he55.src=n3.src"><img name="he55" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(5,6)" onmouseover="javascript:if (hedge[5][6]<1) document.he56.src=n0.src" onmouseout="javascript:if (hedge[5][6]<1) document.he56.src=n3.src"><img name="he56" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(5,7)" onmouseover="javascript:if (hedge[5][7]<1) document.he57.src=n0.src" onmouseout="javascript:if (hedge[5][7]<1) document.he57.src=n3.src"><img name="he57" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" height="8" width="8"></td></tr><tr><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="36" width="8"></td><td align="center"><img src="game-javascript-math-ucla-4.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(5,1)" onmouseover="javascript:if (vedge[5][1]<1) document.ve51.src=n0.src" onmouseout="javascript:if (vedge[5][1]<1) document.ve51.src=n3.src"><img name="ve51" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(5,2)" onmouseover="javascript:if (vedge[5][2]<1) document.ve52.src=n0.src" onmouseout="javascript:if (vedge[5][2]<1) document.ve52.src=n3.src"><img name="ve52" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-3.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(5,3)" onmouseover="javascript:if (vedge[5][3]<1) document.ve53.src=n0.src" onmouseout="javascript:if (vedge[5][3]<1) document.ve53.src=n3.src"><img name="ve53" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-3.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(5,4)" onmouseover="javascript:if (vedge[5][4]<1) document.ve54.src=n0.src" onmouseout="javascript:if (vedge[5][4]<1) document.ve54.src=n3.src"><img name="ve54" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-2.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(5,5)" onmouseover="javascript:if (vedge[5][5]<1) document.ve55.src=n0.src" onmouseout="javascript:if (vedge[5][5]<1) document.ve55.src=n3.src"><img name="ve55" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-5.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(5,6)" onmouseover="javascript:if (vedge[5][6]<1) document.ve56.src=n0.src" onmouseout="javascript:if (vedge[5][6]<1) document.ve56.src=n3.src"><img name="ve56" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-2.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(5,7)" onmouseover="javascript:if (vedge[5][7]<1) document.ve57.src=n0.src" onmouseout="javascript:if (vedge[5][7]<1) document.ve57.src=n3.src"><img name="ve57" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-5.gif" border="0" height="36" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="36" width="8"></td></tr><tr><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(6,0)" onmouseover="javascript:if (hedge[6][0]<1) document.he60.src=n0.src" onmouseout="javascript:if (hedge[6][0]<1) document.he60.src=n3.src"><img name="he60" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(6,1)" onmouseover="javascript:if (hedge[6][1]<1) document.he61.src=n0.src" onmouseout="javascript:if (hedge[6][1]<1) document.he61.src=n3.src"><img name="he61" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(6,2)" onmouseover="javascript:if (hedge[6][2]<1) document.he62.src=n0.src" onmouseout="javascript:if (hedge[6][2]<1) document.he62.src=n3.src"><img name="he62" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(6,3)" onmouseover="javascript:if (hedge[6][3]<1) document.he63.src=n0.src" onmouseout="javascript:if (hedge[6][3]<1) document.he63.src=n3.src"><img name="he63" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(6,4)" onmouseover="javascript:if (hedge[6][4]<1) document.he64.src=n0.src" onmouseout="javascript:if (hedge[6][4]<1) document.he64.src=n3.src"><img name="he64" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(6,5)" onmouseover="javascript:if (hedge[6][5]<1) document.he65.src=n0.src" onmouseout="javascript:if (hedge[6][5]<1) document.he65.src=n3.src"><img name="he65" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(6,6)" onmouseover="javascript:if (hedge[6][6]<1) document.he66.src=n0.src" onmouseout="javascript:if (hedge[6][6]<1) document.he66.src=n3.src"><img name="he66" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><a href="javascript:hmove(6,7)" onmouseover="javascript:if (hedge[6][7]<1) document.he67.src=n0.src" onmouseout="javascript:if (hedge[6][7]<1) document.he67.src=n3.src"><img name="he67" src="game-javascript-math-ucla-blank.gif" border="0" height="8" width="36"></a></td><td align="center"><img src="game-javascript-math-ucla-black.gif" height="8" width="8"></td></tr><tr><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="36" width="8"></td><td align="center"><img src="game-javascript-math-ucla-2.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(6,1)" onmouseover="javascript:if (vedge[6][1]<1) document.ve61.src=n0.src" onmouseout="javascript:if (vedge[6][1]<1) document.ve61.src=n3.src"><img name="ve61" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-2.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(6,2)" onmouseover="javascript:if (vedge[6][2]<1) document.ve62.src=n0.src" onmouseout="javascript:if (vedge[6][2]<1) document.ve62.src=n3.src"><img name="ve62" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-3.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(6,3)" onmouseover="javascript:if (vedge[6][3]<1) document.ve63.src=n0.src" onmouseout="javascript:if (vedge[6][3]<1) document.ve63.src=n3.src"><img name="ve63" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(6,4)" onmouseover="javascript:if (vedge[6][4]<1) document.ve64.src=n0.src" onmouseout="javascript:if (vedge[6][4]<1) document.ve64.src=n3.src"><img name="ve64" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-2.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(6,5)" onmouseover="javascript:if (vedge[6][5]<1) document.ve65.src=n0.src" onmouseout="javascript:if (vedge[6][5]<1) document.ve65.src=n3.src"><img name="ve65" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-6.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(6,6)" onmouseover="javascript:if (vedge[6][6]<1) document.ve66.src=n0.src" onmouseout="javascript:if (vedge[6][6]<1) document.ve66.src=n3.src"><img name="ve66" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-2.gif" border="0" height="36" width="36"></td><td align="center"><a href="javascript:vmove(6,7)" onmouseover="javascript:if (vedge[6][7]<1) document.ve67.src=n0.src" onmouseout="javascript:if (vedge[6][7]<1) document.ve67.src=n3.src"><img name="ve67" src="game-javascript-math-ucla-blank.gif" border="0" height="36" width="8"></a></td><td align="center"><img src="game-javascript-math-ucla-5.gif" border="0" height="36" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="36" width="8"></td></tr><tr><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="36"></td><td align="center"><img src="game-javascript-math-ucla-black.gif" border="0" height="8" width="8"></td></tr></tbody></table></td><td><textarea name="space" rows="12" cols="70"></textarea></td></tr></tbody></table>
Rules:
  The 28 dominoes have been arranged into a 7 by 8 rectangle on the left.
  The actual placement of the dominoes has been omitted. You are to find
  a placement of the dominoes that works by outlining each domino,
  clicking on the lines that separate the dominoes. On the right, there
  is a table that gives for each domino exactly how many possibilities
  remain for the placement of that domino. This is for your information
  only. There may be many solutions. You are only required to find one of
  them.</center>
  

  <a href="http://www.math.ucla.edu/%7Etom/Games/dominstructions.html">Instructions</a>.
  
  </body></html>
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 20/2/2008

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