"use strict";


function Sudoku_Solve()
{
    let max=200;
    let carousel_ids=[];

    let iteration=1;

    while (iteration0)
        {
            let clss=update[3];
            
            Sudoku_Solve_Operation(iteration,update,clss);

            let div_id="DIV_"+iteration;
            let legend_id="Legend_"+iteration;

            //Add to carousels
            carousel_ids.push([div_id,legend_id]);
            iteration++;
        }
    }

    Carousel_Element_IDs("Iterations_Form",carousel_ids);
}


function Sudoku_Solve_Operation(iteration,update,clss)
{           
    let r=update[0];
    let s=update[1];
    let value=update[2];
    
    //Copy old form
    let form=Game_Info[ "Form" ];
    let rform_id="Game_"+iteration;
    let div_id="DIV_"+iteration;
    let legend_id="Legend_"+iteration;

    
    //table=form
    let rform=Sudoku_Solve_Form_Clone(form,rform_id);
    
    let title=
        "Iteration "+iteration
        +
        " "+clss+
        ": "+(r+1)+","+(s+1)+"="+value;
    
    let insert_ol = document.getElementById("Iterations_Info"); 
    let li = document.createElement("li");
    li.innerHTML=title;
    
    insert_ol.append(li);
    
    let h = document.createElement("h3");
    h.innerHTML=title;
    
    h.setAttribute
    (
        "onclick",
        "Sudoku_Form_Inputs_Titles_Show(this,'"+rform_id+"');"
    );
    
    let div = document.createElement("div");
    div.append(rform);
    div.append(h);

    
    div.style.display='none';
    div.className="Sudokus";
    div.id=div_id;

    
    let insert=document.getElementById("Iterations_Form");  
    insert.append(div);

    Sudoku_Solve_Update(rform_id,iteration,r,s,value,clss);

    //Reread, then update
    let res=Sudoku_Init(iteration,rform_id,"Iterations_Legend",legend_id,'none');        
}


function Sudoku_Solve_First(iteration)
{
    let update=Sudoku_Unique_First(iteration);
    
    if (update.length==0)
    {
        update=Sudoku_Incidence_First(iteration);
    }

    return update;
}

function Sudoku_Solve_Update(form_id,iteration,r,s,value,clss)
{
    let element=Sudoku_Input_Form_Field(form_id,Sudoku_Input(r,s));
    
    element.value=value;
    element.classList.add(clss);
    element.title=clss+": "+iteration;
}

function Sudoku_Solve_Form_Clone(form,rform_id)
{
    let rform=form.cloneNode(false);
    rform.id=rform_id;

    let table=form.getElementsByTagName("table");
    table=table[0];
    
    let trs=table.getElementsByTagName("tr");
    let rtable=document.createElement("table");
    
    for (let n=0;n