Naive 2048 Solver

solver.js

var a = (keyCode)=>{
  var keyEvent = document.createEvent("Events");
  keyEvent.initEvent("keydown", true, true);
  keyEvent.keyCode = keyCode;
  keyEvent.which = keyCode;
  document.body.dispatchEvent(keyEvent);
}

const LEFT = 37;
const UP = 38;
const RIGHT = 39;
const DOWN = 40;

var b = () => Array.prototype.reduce.bind(document.querySelector(".tile-container").childNodes)((acc,item)=>acc+item.className);

var hash = null;
var c = 0;

var f = function() {
  var tmphash = b();
  a(DOWN);
  a(LEFT);
  a(DOWN);
  if (tmphash == hash) {
    if (c == 1) {
      a(RIGHT);
      a(LEFT);
      c = 0;
    } else {
      c++;
    }
  }
  hash = tmphash;
  setTimeout(f,100);
}

f();

solver1.js

var a = (keyCode)=>{
  var keyEvent = document.createEvent("Events");
  keyEvent.initEvent("keydown", true, true);
  keyEvent.keyCode = keyCode;
  keyEvent.which = keyCode;
  document.body.dispatchEvent(keyEvent);
}

const LEFT = 37;
const UP = 38;
const RIGHT = 39;
const DOWN = 40;
const RESTART = 82;

var b = () => Array.prototype.reduce.bind(document.querySelector(".tile-container").childNodes)((acc,item)=>acc+item.className);
var g = () => Array.prototype.map.bind(document.querySelector(".tile-container").childNodes)((item)=>
  Array.prototype.filter.bind(item)((classstring)=>/./.test.bind(new RegExp("tile-[0-9]+", 'g'))(classstring)[0].split('-')[1]
  ).split('-')[1]);
document.querySelector(".tile-container").childNodes[0].className.split(" ").filter(
  (class) => {
    return RegExp.prototype.test.bind(new RegExp(class));
  }
)

var hash = null;
var c = true;
var counter = 0;
var failedcounter = 0;
var d = true;
var f = function() {
  var tmphash = b();
  if(c){
    a(DOWN);
    a(DOWN);
  } else {
    a(LEFT);
  }
  if (tmphash == hash) {
    c = !c;
    counter = 0;
    failedcounter += 1;
  } else {
    failedcounter = 0;
  }
  hash = tmphash;
  counter += 1;
  if(counter>15&&counter%5==0){
    console.log((c?"DOWN":"LEFT")+" "+counter);
  }
  if (failedcounter > 3) {
    a(RIGHT);
    a(LEFT);
  }
  if (failedcounter > 4) {
    a(UP);
    a(DOWN);
  }
  if (failedcounter > 30){
    a(RESTART);
    console.log()
  }
  if (d) {
    setTimeout(f,50);
  }
}

f();

solver3.js

var a = (keyCode)=>{
  var keyEvent = document.createEvent("Events");
  keyEvent.initEvent("keydown", true, true);
  keyEvent.keyCode = keyCode;
  keyEvent.which = keyCode;
  document.body.dispatchEvent(keyEvent);
}

const LEFT = 37;
const UP = 38;
const RIGHT = 39;
const DOWN = 40;
const RESTART = 82;

var b = () => Array.prototype.reduce.bind(document.querySelector(".tile-container").childNodes)((acc,item)=>acc+item.className);

var hash = null;
var c = true;
var counter = 0;
var failedcounter = 0;
var d = true;
var logs = [];
var f = function() {
  var tmphash = b();
  if(c){
    a(DOWN);
    a(DOWN);
  } else {
    a(LEFT);
  }
  if (tmphash == hash) {
    c = !c;
    counter = 0;
    failedcounter += 1;
  } else {
    failedcounter = 0;
  }
  hash = tmphash;
  counter += 1;
  if(counter>15&&counter%5==0){
  }
  if (failedcounter > 3) {
    a(RIGHT);
    a(LEFT);
  }
  if (failedcounter > 4) {
    a(UP);
    a(DOWN);
  }
  if (failedcounter > 30){
    a(RESTART);
    logs.push(tmphash);
    if(tmphash.indexOf("2048")>=0){
      d = false;
    }
  }
  if (d) {
    setTimeout(f,50);
  }
}

f();

solver4.js

var a = (keyCode)=>{
  var keyEvent = document.createEvent("Events");
  keyEvent.initEvent("keydown", true, true);
  keyEvent.keyCode = keyCode;
  keyEvent.which = keyCode;
  document.body.dispatchEvent(keyEvent);
}

const LEFT = 37;
const UP = 38;
const RIGHT = 39;
const DOWN = 40;
const RESTART = 82;

var matrix = ()=>{let matrix=[[0,0,0,0],[0,0,0,0],[0,0,0,0],[0,0,0,0]];Array.prototype.map.bind(document.querySelector(".tile-container").childNodes)((item)=>/tile tile-([0-9]+) tile-position-([0-9]+)-([0-9]+)/.exec(item.className).slice(1)).forEach(each=>matrix[parseInt(each[1])-1][parseInt(each[2])-1] = Math.log2(each[0]).toString(13));return matrix;};
var b = () => Array.prototype.reduce.bind(matrix())((acc,item)=>acc.concat(item),[]).join('');

var hash = null;
var counter = 0;
var failedcounter = 0;
var f = function() {
  var tmphash = b();
  if (tmphash === hash) {
    failedcounter += 1;
  } else {
    failedcounter = 0;
  }
  hash = tmphash;
  counter += 1;
  if (Math.random() < 0.1) {
    a(RIGHT);
    a(DOWN);
    setTimeout(f,0);
    return;
  }
  if (Math.random() > 0.7) {
    a(LEFT);
  }
  if (failedcounter > 0) {
     a(DOWN);
  }
  if (failedcounter > 10) {
    a(LEFT);
  }
  if (failedcounter > 20) {
    a(RIGHT);
    a(LEFT);
  }
  if (failedcounter > 30) {
    a(UP);
    a(DOWN);
  }
  if (failedcounter > 70){
    const score = parseInt(document.querySelector('.score-container').innerText.split('+')[0]);
    console.log(tmphash.split('0').length);
    if(tmphash.indexOf('2048') < 0 && score > 0 && tmphash.split('0').length < 3){
      a(RESTART);
      setTimeout(f,200);
    } else { debugger; }
    return;
  }
  setTimeout(f,10);
}

f();