How to validate a list of objects value

My array look like this:

var theset=[
    {
        "set": "1",
        "data": [
            { "field": "A", "value": "111", "check": true },
            { "field": "B", "value": "111", "check": false },
            { "field": "C", "value": "111", "check": true }     
        ]
    },
    {
        "set": "2",
        "data": [
            { "field": "A", "value": "111", "check": true },
            { "field": "B", "value": "222", "check": false },
            { "field": "C", "value": "222", "check": true }     
        ]
    },
    {
        "set": "3",
        "data": [
            { "field": "A", "value": "333", "check": true },
            { "field": "B", "value": "333", "check": false },
            { "field": "C", "value": "222", "check": true }     
        ]
    },
    {
        "set": "4",
        "data": [
            { "field": "A", "value": "444", "check": true },
            { "field": "B", "value": "333", "check": false },
            { "field": "C", "value": "444", "check": true }     
        ]
    }
];

What I want to do is validate the “value” of “field” with other set if the “check” is true.

The result is to return a true if there is a duplication of “value” in the set. The example will return a true because

• set 1: having duplicate value for field A with set 2
• set 2: having duplicate value for field A with set 1, duplicate value for field C with set 3
• set 3: having duplicate value for field C with set 2

so far I tried to do for loop on the list but this will have a lot of nested loop which is not efficient.

for(var i=0; i<theset.length; i++){
    var checking = theset[i].data;
    for(var j=0; j<checking.length; j++){
        if(checking[j].check){
            for(var k=0; k<theset.length; k++){
                if(k!=i){
                    var checking2 = theset[k].data;
                    for(var l=0; l<checking2.length; l++){
                     ...
                    }
                }
            }         
        }
    }
}

Can anybody help me?