[рони]

smukorez,

let blocks = document.querySelectorAll('.block');
let one = [];
let two = [];


for (let i = 0; i < blocks.length; i++){
    two[i] = 'aqua';
    let random = Math.round(Math.random());
    if (random){
        blocks[i].style.background = 'red';
        one[i] = 'red';
    }
    else one[i] = 'aqua';
}

setTimeout(rel,1000);

for (let d = 0; d < blocks.length; d++){
    blocks[d].onclick = function () {
        blocks[d].style.background = 'red';
        two[d] = 'red'
    }
}

function rel() {
    for (let i = 0; i < blocks.length; i++){
        blocks[i].style.background = 'aqua';
    }
}

let compare = () => one.every((v,i) => v === two[i]);