First, login to your freebitco.in acount

Then go to free btc on the site.

Play the game there and click on Roll

After it you won some amount

Now for the funny part....

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Stay in there , and click on inspect element->console->

copy this code into it and hit Enter

You should see in the right console window it start the bot script to bet automatic and win and lose. 

Hope someone could do a roll game that win only on 10000 all time? 

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var startValue = '0.00000001', // Don't lower the decimal point more than 4x of current balance
stopPercentage = 0.001,
maxWait = 777,
stopped = false, // debugging
stopBefore = 1; // In minutes for timer before stopping redirect on webpage
var $loButton = $('#double_your_btc_bet_lo_button'),
$hiButton = $('#double_your_btc_bet_hi_button');
function multiply(){
var current = $('#double_your_btc_stake').val();
var multiply = (current * 2).toFixed(8);
$('#double_your_btc_stake').val(multiply);
}
function getRandomWait(){
var wait = Math.floor(Math.random() * maxWait ) + 100;
console.log('Waiting for ' + wait + 'ms before next bet.');
return wait ;
}
function startGame(){
console.log('Game started!');
reset();
$loButton.trigger('click');
}
function stopGame(){
console.log('Game will stop soon! Let me finish.');
stopped = true;
}
function reset(){
$('#double_your_btc_stake').val(startValue);
}
function deexponentize(number){
return number * 10000000;
}
function iHaveEnoughMoni(){
var balance = deexponentize(parseFloat($('#balance').text()));
var current = deexponentize($('#double_your_btc_stake').val());
return ((balance)*2/100) * (current*2) > stopPercentage/100;
}
function stopBeforeRedirect(){
var minutes = parseInt($('title').text());
if( minutes < stopBefore )
{
console.log('Approaching redirect! Stop the game so we don\'t get redirected while loosing.');
stopGame();
return true;
}
return false;
}
$('#double_your_btc_bet_lose').unbind();
$('#double_your_btc_bet_win').unbind();
$('#double_your_btc_bet_lose').bind("DOMSubtreeModified",function(event){
if( $(event.currentTarget).is(':contains("lose")') )
{
console.log('You LOST! Multiplying your bet and betting again.');
multiply();
setTimeout(function(){
$loButton.trigger('click');
}, getRandomWait());
}
});
$('#double_your_btc_bet_win').bind("DOMSubtreeModified",function(event){
if( $(event.currentTarget).is(':contains("win")') )
{
if( stopBeforeRedirect() )
{
return;
}
if( iHaveEnoughMoni() )
{
console.log('You WON! But don\'t be greedy. Restarting!');
reset();
if( stopped )
{
stopped = false;
return false;
}
}
else
{
console.log('You WON! Betting again');
}
setTimeout(function(){
$loButton.trigger('click');
}, getRandomWait());
}
});startGame()