//sudoku.alanlai.net
var debug=0;var default_number_per_box=4;var repeated_at="";var compleated=0;var active_stylesheet="paper-style";var selected_cell;var timer_started=0;var timer_clock;var timer_element;var timer_seconds=0;var timer_paused=0;var xy=new Array(9);
for(var i=0;i<9;i++){xy[i]=new Array(9);}
var cells=new Array(9);
for(var i=0;i<9;i++){cells[i]=new Array(9);}
var puzzles=new Array("abc.gdefihdeif.hagcbfgh.cibade.bf.iehdcg.ae.acbf.gid.hghdiace.bficgdabhefh.b.f.cg.eaidde.ahfibcg","a.bfhiec.g.ddcg.fbai.heiehdg.cabfdegi.hc.fabai.cb.df.eghhf.be.agcidbfi.edhgcac.adgf.iheb.g.hebcaf.di","bfi.edhgcac.adgf.iheb.g.hebcaf.dia.b.fhiec.g.ddcg.fbai.heiehdg.cabfdegi.hc.fabai.cb.df.eghhf.be.agcid","ib.ad.c.g.efhe.hc.fbiagd.fg.daehcibbhcgd.faiegf.ei.ab.dchdai.hcebfgfgdcai.he.bbeahd.gc.ifih.c.e.bf.gda","aeh.dfi.cgbcf.b.e.hgiad.gidc.abfeh.fc.g.b.aeihdb.eifdha.gchda.ig.cebfg.bfhd.aeic.dcegi.f.hbaah.ibce.dfg","dah.iegfcbbigfd.cehae.fchab.gi.dbh.fe.gacidcedi.bhgaf.ag.i.d.cfbh.egb.ch.dea.f.ihf.e.aci.d.gbid.a.fbgceh","cf.b.ag.eidhhd.eif.cbaga.g.ibdh.fceg.acb.ifhe.d.dehgcafb.i.ifbe.hdg.acdc.iebg.f.haegf.ahd.cibhba.ci.f.deg","chfgeai.d.be.gdib.hcf.ab.iacf.dh.gefa.d.hcg.ebigic.bd.eahfeb.hfa.i.gdcd.gh.bica.fe.fei.hagd.cb.a.cbdefihg","adbfheig.c.icfba.gdeh.he.gcidfa.bcb.ide.ah.fgag.dh.fbei.cefhigcbd.abi.he.cd.gafg.de.fbach.i.acf.g.hid.b.e","ied.a.bfghchcfgeia.b.dagbh.cdi.efb.ied.ca.f.ghcga.ef.hdib.fd.hbig.cae.hdie.fg.cabb.a.e.ihcf.dggfcd.b.aehi","h.g.bc.ea.idfa.ci.bf.dgehfe.dih.gcbab.fi.ehg.acdh.dcfabi.geag.edc.ib.fhdah.gbe.ficebf.ci.ad.hggi.ch.df.e.ab",".e.cadbhfgi.fbhegiad.cg.di.afch.bei.h.fba.g.cd.e.badhceif.g.ec.g.dif.b.hag.ibhe.da.fc.chagifde.bfedcabi.g.h","ge.c.h.i.fdabaif.bg.d.echdh.bae.cf.gic.he.fbdig.a.dbageifh.c.ifgca.hb.deb.dh.efg.acicf.e.ia.bhdggia.h.c.d.ebf","deb.cg.a.ihff.ah.dbi.egccgi.h.fe.bda.gcdf.bihae.a.fb.hd.ec.i.geihg.acfb.dbi.ca.d.hefgge.dbc.fi.haah.f.ie.gdcb");
var chosen=0;var this_puzzle="";var orginal_game="";var sudoku_fingerprint=getCookie("sudoku_fingerprint");
if(sudoku_fingerprint==null||sudoku_fingerprint=="")sudoku_fingerprint="";
function getCookie(name){
var start=document.cookie.indexOf(name+"=");
var len=start+name.length+1;
if((!start)&&(name!=document.cookie.substring(0,name.length))){
return null;
}
if(start==-1)return null;
var end=document.cookie.indexOf(";",len);
if(end==-1)end=document.cookie.length;
return unescape(document.cookie.substring(len,end));
}
function setCookie(name,value){
var today=new Date();
today.setTime(today.getTime());
var expires=28;
expires=expires*86400000;
var expires_date=new Date(today.getTime()+(expires));
document.cookie=name+"="+escape(value)+
((expires)?";expires="+expires_date.toGMTString():"")
}
function selectStyleSheet(){
$(active_stylesheet).disabled=true;
active_stylesheet=$("style-selector").value;
$(active_stylesheet).disabled=false;
}
function hex2num(hex){
if(hex.charAt(0)=="#"){
hex=hex.slice(1);
}
hex=hex.toUpperCase();
var hex_alphabets="0123456789ABCDEF";
var value=new Array(3);
var k=0;
var int1,int2;
for(var i=0;i<6;i+=2){
int1=hex_alphabets.indexOf(hex.charAt(i));
int2=hex_alphabets.indexOf(hex.charAt(i+1));
value[k]=(int1*16)+int2;
k++;
}
return(value);
}
function num2hex(triplet){
var hex_alphabets="0123456789ABCDEF";
var hex="#";
var int1,int2;
for(var i=0;i<3;i++){
int1=triplet[i]/16;
int2=triplet[i]%16;
hex+=hex_alphabets.charAt(int1)+hex_alphabets.charAt(int2);
}
return(hex);
}
function fadeColor(id,start_hex,stop_hex,difference,delay,color_background){
if(!difference)difference=20;
if(!delay)delay=100;
if(!start_hex)start_hex="#FFFFFF";
if(!stop_hex)stop_hex="#000000";
if(!color_background)color_background="c";
var ele=document.getElementById(id);
if(!ele)return;
var start=hex2num(start_hex);
var stop=hex2num(stop_hex);
for(var i=0;i<3;i++){
start[i]=Number(start[i]);
stop[i]=Number(stop[i]);
}
for(var i=0;i<3;i++){
if(start[i]<stop[i]){
start[i]+=difference;
if(start[i]>stop[i])start[i]=stop[i];
}else if(start[i]>stop[i]){
start[i]-=difference;
if(start[i]<stop[i])start[i]=stop[i];
}}
var color="rgb("+start[0]+","+start[1]+","+start[2]+")";
if(color_background=="b"){
ele.style.backgroundColor=color;
}else{
ele.style.color=color;
}
if((start[0]==stop[0])&&(start[1]==stop[1])&&(start[2]==stop[2]))return;
start_hex=num2hex(start);
window.setTimeout("fadeColor('"+id+"','"+start_hex+"','"+stop_hex+"',"+difference+","+delay+",'"+color_background+"')",delay);
}
function getIndex(x,y){
var index=(y*3)+x-3;
return index;
}
function getXY(index){
var x=1,y=1;
switch(index){
case 1:y=1;x=1;break;
case 2:y=1;x=2;break;
case 3:y=1;x=3;break;
case 4:y=2;x=1;break;
case 5:y=2;x=2;break;
case 6:y=2;x=3;break;
case 7:y=3;x=1;break;
case 8:y=3;x=2;break;
case 9:y=3;x=3;break;
}
return Array(x,y);
}
function rand(){
var number=Math.round(Math.random()*10);
while(number<1||number>9){
number=Math.round(Math.random()*10);
}
return number;
}
function uniqueRand(list){
var number=rand();
for(var a=0;a<list.length;a++){
if(list[a]==number){
number=rand();
a=-1;
}}
return number;
}
function show(data,color){
document.getElementById("display_area").innerHTML=data+"<br />\n";
document.getElementById("display_area").style.color=color;
}
function isHorizondal(box,check_in){
if((box==1||box==2||box==3)&(check_in==1||check_in==2||check_in==3))return true;
if((box==4||box==5||box==6)&(check_in==4||check_in==5||check_in==6))return true;
if((box==7||box==8||box==9)&(check_in==7||check_in==8||check_in==9))return true;
return false;
}
function isVertical(box,check_in){
if((box==1||box==4||box==7)&(check_in==1||check_in==4||check_in==7))return true;
if((box==2||box==5||box==8)&(check_in==2||check_in==5||check_in==8))return true;
if((box==3||box==6||box==9)&(check_in==3||check_in==6||check_in==9))return true;
return false;
}
function checkForUnique(box,cell,full_check){
box++;
cell++;
var number=cells[box-1][cell-1].value;
if(box>1||full_check){
var boxes_to_check=new Array();
switch(box){
case 1:if(full_check){
boxes_to_check.push(2,3,4,7);
}
break;
case 2:boxes_to_check.push(1);
if(full_check){
boxes_to_check.push(3,5,8);
}
break;
case 3:boxes_to_check.push(1,2);
if(full_check){
boxes_to_check.push(6,9);
}
break;
case 4:boxes_to_check.push(1);
if(full_check){
boxes_to_check.push(5,6,7);
}
break;
case 5:boxes_to_check.push(2,4);
if(full_check){
boxes_to_check.push(6,8);
}
break;
case 6:boxes_to_check.push(3,4,5);
if(full_check){
boxes_to_check.push(9);
}
break;
case 7:boxes_to_check.push(1,4);
if(full_check){
boxes_to_check.push(8,9);
}
break;
case 8:boxes_to_check.push(2,5,7);
if(full_check){
boxes_to_check.push(9);
}
break;
case 9:boxes_to_check.push(3,6,7,8);break;
}
var value="",xy_coods,cell_to_check;
next_box:
for(var i=0;i<boxes_to_check.length;i++){
xy_coods=getXY(cell);
var check_box=boxes_to_check[i];
for(var j=1;j<=3;j++){
if(isHorizondal(box,check_box)){
if(!full_check){
if(box==1||box==4||box==7)continue next_box;
else if(box==5&&check_box==6)continue next_box;
else if(box==8&&check_box==9)continue next_box;
}
cell_to_check=getIndex(j,xy_coods[1]);
value=cells[(check_box-1)][cell_to_check-1].value;
if(value==number){
repeated_at="c"+check_box+cell_to_check;
return false;
}}else{
if(!full_check){
if(box<4)continue;
else if(box==4&&check_box==7)continue next_box;
else if(box==5&&check_box==8)continue next_box;
else if(box==6&&check_box==9)continue next_box;
}
cell_to_check=getIndex(xy_coods[0],j);
value=cells[check_box-1][cell_to_check-1].value;
if(value==number){
repeated_at="c"+check_box+cell_to_check;
return false;
}}}}}
for(var k=0;k<9;k++){
var val=cells[box-1][k].value;
if(number==val &&(k+1!=cell)){
repeated_at="c"+box+(k+1);
return false;
}}
return true;
}
function insert(id,value){
var ele=document.getElementById(id);
ele.value=value
if(value)
ele.disabled=true;
else
ele.disabled=false;
}
function clearer(){
var id=""
document.f.reset();
for(var i=0;i<9;i++){
for(var j=0;j<9;j++){
cells[i][j].disabled=false;
}}}
function discolorCells(cell1,cell2){
document.getElementById(cell1).style.background="#fff";
if(cell2)document.getElementById(cell2).style.background="#fff";
}
function recordPosition(){
var value=0;
for(var a=0;a<9;a++){
for(var b=0;b<9;b++){
value=cells[a][b].value;
if(!isNaN(value)&& value.length==1){
xy[a][b]=value;
}else{
xy[a][b]=0;
}}}}
function pos2str(action){
var str="";
var zero_count=0;
var alpha=" abcdefghijklmnopqrstuvwxyz";
if(action){
recordPosition();
}
for(var a=0;a<9;a++){
for(var b=0;b<9;b++){
if(xy[a][b]){
if(zero_count){
str+=alpha.charAt(zero_count);
zero_count=0;
}
str+=xy[a][b];
}else{
zero_count++;
}}}
return str;
}
function str2pos(str){
var zero_flag=0;
var alpha="abcdefghijklmnopqrstuvwxyz";
var pos=0;
var a=0;
var b=0;
str=str.replace(/\./g,"");
while(a<9){
ch=str.charAt(pos);
id="c"+(a+1)+(b+1);
if(!isNaN(ch)&& !zero_flag){
insert(id,ch);
}else if(zero_flag){
insert(id,"");
zero_flag--;
}else{
insert(id,"");
zero_flag=alpha.indexOf(ch);
}
if(!zero_flag){
pos++;
}
b++;
if(b>=9){
b=0;
a++;
}}}
function makeCookieString(){
var str="";
var puzzle_cells=new Array(0);
for(var a=0;a<9;a++){
for(var b=0;b<9;b++){
value=cells[a][b].value;
if(cells[a][b].disabled){
value="."+value;
}
puzzle_cells.push(value);
}}
str=puzzle_cells.join(';');
return str;
}
function checkCell(e){
var cell=findTarget(e);
var val=cell.value;
if(val<1||val>9||isNaN(val)){
tagProblemCell(cell,1);
if(val.length>1){
cell.className+=" possibilities-entry";
}
return 0;
}else{
if(cell.className.indexOf("possibilities-entry")){
cell.className=cell.className.replace(/ possibilities\-entry/g,"");
cell.className=cell.className.replace(/ problem\-cell/g,"");
cell.style.color="#0033cc";
}
if($("live-hints").checked){
var id=cell.id;
var a=Number(id.charAt(1))-1;
var b=Number(id.charAt(2))-1;
if(!checkForUnique(a,b,true)){
cell.style.background="red";
$(repeated_at).style.background="red";
setTimeout("discolorCells('"+repeated_at+"','"+id+"')",2000);
return 0;
}}}
tagProblemCell(cell,0);
return 1;
}
function makeProblemCell(id){
$(id).className+=" problem-cell";
}
function tagProblemCell(cell,on){
var current_classes=cell.className.toString();
var have_problem=0;
if(current_classes.indexOf("problem-cell")>=0)have_problem=1;
if(on){
if(!have_problem)cell.className+=" problem-cell";
}else{
if(have_problem)cell.className=current_classes.replace(" problem-cell","");
}}
function timer(){
if(!timer_seconds)timer_seconds=0;
timer_seconds++;
var secs=timer_seconds%60;
var mins=Math.floor(timer_seconds/60);
if(secs<10)secs="0"+secs;
if(mins<10)mins="0"+mins;
timer_element.innerHTML=mins+":"+secs;
timer_clock=window.setTimeout("timer()",1000);
}
function stopTimer(){
if(timer_clock)clearTimeout(timer_clock);
}
function cellClicked(e){
selected_cell=findTarget(e);
}
function revealCell(){
if(!selected_cell)return;
var str=this_puzzle.replace(/\./g,"");
var c_xy=selected_cell.id.split("");
var box=c_xy[1]-1;
var cell=c_xy[2]-1;
var rest=str.substr(box*9);
var number=rest.charAt(cell);
selected_cell.value=number;
fadeColor(selected_cell.id,"#ffffff","#cc00cc",10,100,"c");
}
function makeNewOrder(str){
var alpha=" abcdefghijklmnopqrstuvwxyz";
var new_order="";
numbers=new Array("0");
for(j=0;j<9;j++){
new_numbers=uniqueRand(numbers);
numbers.push(new_numbers);
}
for(i=0;i<str.length;i++){
if(str.charAt(i)=="."||str.charAt(i)=="*"||str.charAt(i)=="x"||
str.charAt(i)=="_"||str.charAt(i)=="-"||str.charAt(i)=="+"){
new_order+="."
}else{
new_order+=numbers[alpha.indexOf(str.charAt(i))]
}}
return new_order;
}
function newGame(){
chosen=Math.floor((Math.random()*10)/(10/puzzles.length));
this_puzzle=makeNewOrder(puzzles[chosen]);
show("");
compleated=0;
clearer();
var last_box_ended_at=0;
var extra_number_count=0;
default_number_per_box=$("difficulty").value;
for(var i=0;i<9;i++){
var b=0,location_of_fixed_number=0;
var arr_b=new Array();
var limit=9;
var this_box="";
var dot_count=0;
for(var j=last_box_ended_at;j<last_box_ended_at+limit;j++){
if(this_puzzle.charAt(j)=="."){
limit++;
dot_count++;
}
this_box=this_box+this_puzzle.charAt(j);
}
last_box_ended_at=last_box_ended_at+limit;
number_of_numbers=default_number_per_box-extra_number_count;
extra_number_count=0;
if(dot_count>number_of_numbers){
if(rand()>5){
extra_number_count=dot_count-number_of_numbers;
}
number_of_numbers=dot_count;
}
arr_b=new Array();
for(b=0;b<number_of_numbers;b++){
location_of_fixed_number=this_box.indexOf(".");
if(location_of_fixed_number+1){
this_box=this_box.substring(0,location_of_fixed_number)+
this_box.substring(location_of_fixed_number+1,this_box.length);
}else{
location_of_fixed_number=uniqueRand(arr_b);
location_of_fixed_number--;
}
arr_b.push(location_of_fixed_number+1);
insertion_number=this_box.charAt(location_of_fixed_number);
location_of_fixed_number++;
id="c"+(i+1)+location_of_fixed_number
insert(id,insertion_number);
}}
orginal_game=pos2str(2);
stopTimer();
timer_seconds=0;
$("timer").innerHTML="00:00";
timer();
timer_started=1;
}
function init(){
var cell_ref;
for(var i=1;i<=9;i++){
for(var j=1;j<=9;j++){
cell_ref=document.getElementById("c"+i+j);
addEvent(cell_ref,"change",checkCell);
addEvent(cell_ref,"click",cellClicked);
cells[i-1][j-1]=cell_ref;
}}
var new_style_sheet=getCookie("sudoku_options_stylesheet");
if($(new_style_sheet)){
$(active_stylesheet).disabled=true;
active_stylesheet=new_style_sheet;
$(active_stylesheet).disabled=false;
$("style-selector").value=new_style_sheet;
}
var hinting=getCookie("sudoku_options_live_hint");
if(hinting){
$("live-hints").checked=hinting;
}
timer_element=$("timer");
newGame();
}
function exit(){
setCookie("sudoku_options_stylesheet",active_stylesheet);
if($("live-hints").checked){
setCookie("sudoku_options_live_hint",true);
}else{
setCookie("sudoku_options_live_hint",false);
}}
window.onload=init;
window.onunload=exit;