9d8
<  th { text-align: left; }
15,17d13
<   var mustbeguessed=location.search.split('mustbeguessed=')[1] ? decodeURIComponent(location.search.split('mustbeguessed=')[1].split('&')[0]) : '';
<   var mustnotbeguessed=location.search.split('mustnotbeguessed=')[1] ? decodeURIComponent(location.search.split('mustnotbeguessed=')[1].split('&')[0]) : '';
<   var gls=getls();
40d35
<     var jqs=eval(1 + eval('' + iqs));
48,68d42
<     } else if (mustbeguessed.trim() != '' && mustnotbeguessed.trim() != '') {
<       document.getElementById('smode').value='tailored';
<       if (((',' + mustbeguessed.trim() + ',').indexOf(',' + jqs + ',') == -1 || (',' + mustnotbeguessed.trim() + ',').indexOf(',' + jqs + ',') != -1) || document.URL.indexOf('extremelyeasy=') != -1) {
<         return ans + stemp.replace('xxx','s' + iqs).replace(' value=" "',' value="' + ans + '"').replace(' data-answer=" "',' style=display:none; data-answer="' + ans + '"').replace('>' + ans + '<',' selected>' + ans + '<').replace('>', ' disabled>');
<       } else {
<         return stemp.replace('xxx','s' + iqs).replace(' data-answer=" "',' data-answer="' + ans + '"'); //.replace('>' + ans + '<',' selected>' + ans + '<').replace('>', ' disabled>');
<       }
<     } else if (mustbeguessed.trim() != '' && mustnotbeguessed.trim() == '') {
<       document.getElementById('smode').value='tailored';
<       if ((',' + mustbeguessed.trim() + ',').indexOf(',' + jqs + ',') == -1 || document.URL.indexOf('extremelyeasy=') != -1) {
<         return ans + stemp.replace('xxx','s' + iqs).replace(' value=" "',' value="' + ans + '"').replace(' data-answer=" "',' style=display:none; data-answer="' + ans + '"').replace('>' + ans + '<',' selected>' + ans + '<').replace('>', ' disabled>');
<       } else {
<         return stemp.replace('xxx','s' + iqs).replace(' data-answer=" "',' data-answer="' + ans + '"'); //.replace('>' + ans + '<',' selected>' + ans + '<').replace('>', ' disabled>');
<       }
<     } else if (mustbeguessed.trim() == '' && mustnotbeguessed.trim() != '') {
<       document.getElementById('smode').value='tailored';
<       if ((',' + mustnotbeguessed.trim() + ',').indexOf(',' + jqs + ',') != -1 || document.URL.indexOf('extremelyeasy=') != -1) {
<         return ans + stemp.replace('xxx','s' + iqs).replace(' value=" "',' value="' + ans + '"').replace(' data-answer=" "',' style=display:none; data-answer="' + ans + '"').replace('>' + ans + '<',' selected>' + ans + '<').replace('>', ' disabled>');
<       } else {
<         return stemp.replace('xxx','s' + iqs).replace(' data-answer=" "',' data-answer="' + ans + '"'); //.replace('>' + ans + '<',' selected>' + ans + '<').replace('>', ' disabled>');
<       }
100d73
<       tds[i].title='Square number ' + eval(1 + eval('' + i));
123,165d95
<   
<   function askmaybe(indef) {
<     var tans='';
<     var tpars='';
<     if (indef.indexOf('tailored=') == 0) {
<       tans=prompt('Using square numbers of 9x9 grid from 1 to 81, specify in comma separated list, where prefixed by minus would be pre-answered else represents squares to be answered, for Sudoku game to follow. To remember for the future involve leading or trailing spaces.  Involve an x to delete any pre-existing saved tailored Sudoku game configurations.', '');
<       if (tans == null) { tans=''; }
<       var atansarr=tans.replace(/x/g,'').replace(/X/g,'').split(',');
<       if (gls!= '' && tans.toLowerCase().indexOf('x') != -1) {
<             window.localStorage.removeItem('sudokudefs');
<             gls='';
<       }
<       for (var it=0; it<atansarr.length; it++) {
<        if (('' + atansarr[it]).trim() != '') {
<         if (('' + atansarr[it] + ' ').indexOf('-') == 0) {
<           if (tpars.indexOf('mustnotbeguessed=') == -1) { tpars+='&mustnotbeguessed=' + atansarr[it].trim().substring(1);  } else {  tpars=tpars.replace('&mustnotbeguessed=', '&mustnotbeguessed=' + atansarr[it].trim().substring(1) + ','); }
<         } else {
<           if (tpars.indexOf('mustbeguessed=') == -1) { tpars+='&mustbeguessed=' + atansarr[it].trim();  } else {  tpars=tpars.replace('&mustbeguessed=', '&mustbeguessed=' + atansarr[it].trim() + ','); }
<         }
<        }
<       }
<       if (tpars != '') {
<         if (tans.trim() != tans) {
<           if (getls() != '') {
<             window.localStorage.removeItem('sudokudefs');
<           }
<           window.localStorage.setItem('sudokudefs', encodeURIComponent(tpars.substring(1)));
<         }
<         return tpars.substring(1);
<       }
<     }
<     return indef;
<   }
<   
<   function getls() {
<     return decodeURIComponent(('' + window.localStorage.getItem('sudokudefs')).replace(/^undefined/g,'').replace(/^null/g,''));
<   }
<   
<   function checkls() {
<     if (gls != '' && document.URL.indexOf('?') == -1) {
<       location.href=document.URL.split('#')[0].split('?')[0] + '?' + gls;
<     } 
<   }
168,172c98,100
< <body onload="checkls(); while (!okay) { okay=newgame(); }">
< <table><tr id="ourrow"><th id="onleft">
< <h1>Sudoku <select id="smode" onchange="location.href=document.URL.split('?')[0].split('#')[0] + '?' + askmaybe(this.value + '=' + this.value);"><option value='easy'>Easy</option><option value=hard>Hard</option><option value='tailored'>Tailored</option></select></h1>
< <h3>RJM Programming - December, 2022 <span id="semojis"></span></h3>
< </th></tr></table>
---
> <body onload="while (!okay) { okay=newgame(); }">
> <h1>Sudoku <select id=smode onchange="location.href=document.URL.split('?')[0].split('#')[0] + '?' + this.value + '=' + this.value;"><option value='easy'>Easy</option><option value=hard>Hard</option></select></h1>
> <h3>RJM Programming - December, 2022</h3>