# How to Shave 30 Seconds off Solving a 3×3 Rubik’s Cube – 4 Look Last Layer (4LLL)

This tutorial presumes you already know how to solve a rubik’s cube, if you don’t, please start by learning How to Solve a 3×3 Rubik’s Cube in Under 2 Minutes.

Once you have the basic solution down, you may want to reduce your solve time. There are various ways to do that, but this tutorial will focus on solving the last layer in as little as a quarter of the time.

In How to Solve a 3×3 Rubik’s Cube in Under 2 Minutes you learned how to solve the last layer in 4 steps:
Step 1 – Create a cross – F R U Ri Ui Fi.
Step 2 – Align the centers – R U Ri U R U U Ri Ui.
Step 3 – Position the corners – U R Ui Li U Ri Ui L.
Step 4 – Orient the corners – Ri Di R D.

The algorithms you learned are the minimum amount required to solve the cube, they are not however the most efficient. These algorithms do not take into consideration the state of the cube, and many times you have to repeat an algorithm multiple time to solve each step.

In this tutorial you will learn multiple algorithms for each step, with each algorithm matching a cube state. You will have to memories more algorithms but you will always be able to complete each step in one algorithm with no repetition- 4 algorithms in total to complete the last layer.

We will start by orienting the top face, edges first and then corners.

## Step 0 – Learn the moves

For reference above are all the move annotations you already know.

In addition to the moves you already know, there are 3 more annotations you need learn:
1) Lower-case letter means turning 2 layers of the corresponding face.
2) B stands for back – the layer facing away from you.
3) M stands for middle – the layer between the front and the back.

# How to Beat Rock-Paper-Scissors – Improve Your Odds of Winning the Game.

Rock-Paper-Scissors is suppose to be a zero-sum hand game with a 1 in 3 chance of winning any given round, but is it really a game of chance?

The zero-sum game characterization is based on the assumption that the weapon (rock, paper or scissors) is chosen at random. Most real life experiments will show that, on average, players tend to chose each weapon about a third of the time.
However, who is to say that there is no pattern in the order of the weapon choice?

If players continuously or subconsciously use a predictable strategy to play the game then that’s a weakness that can be exploited.

Continue reading “How to Beat Rock-Paper-Scissors – Improve Your Odds of Winning the Game.” »

# How to Play and Win 2048 – Tips, Tricks and Online Game

2048 is a single-player puzzle game in which the objective is to obtain a 2048 tile. A 2048 tile is achieved by combining matching numbered tiles on a 4 by 4 grid.

There are 4 possible moves:
Left to Right” – Right arrow key.
Right to Left” – Left arrow key.
Top to Bottom” – Up arrow key.
Bottom to Top” – Down arrow key.
With every move a new tile (with a value of 2 or 4) randomly appear in an empty spot on the board.

Tiles slide as far as possible in the chosen direction until they are stopped by either another tile or the edge of the board. If two tiles of the same number collide while moving, they will merge into a single tile with their sum value – e.g.: 2 and 2 becomes 4, 4 and 4 becomes 8 and so forth.
The resulting tile cannot merge with another tile again in the same move.

The game is over when the board is full and there aren’t any possible moves left.

In order to reach the mythical 2048 tile, the player must play strategically and maintain enough room on the board to achieve the tile.

# How to Count Cards in Blackjack

Blackjack possibly has the lowest house edge of any casino table games, with an edge as low as a 0.28% in favor of the house.

Counting cards is used to lower the house’s edge, or even give the player an edge over the casino. The player edge may range between 0%-1% when counting cards.

## The Hi-Lo strategy

The most popular card counting strategy is the “Hi-Lo strategy”, primarily because it is simple to master and yields good results.
With this strategy high cards are given a value of -1, while low cards are given a a value of +1. When added up, they total the running count. Bet amount is placed based on the running count – bets increased when the count is positive and decrease or not placed when the count is negative.

The reason the “Hi-Lo strategy” works is because high cards (10 to Ace) improve the player’s chances of hitting a blackjack, which pays out at 3:2. They also increase the dealer’s chances of going “bust” – since they have to hit on 16 and under. Low cards, on the other hand, are bad for the player – reducing his chances of getting a blackjack, but good for the dealer by decreasing his chances of busting on 16 or under.

If the high to low card ratio is higher than normal – meaning, there are lots of high cards still in the deck, the player can place a bigger bet to increase the amount he stands to win.

## The running count

To track high to low card ratio, cards are assign a value between -1 to 1.
Cards 2-6 have a value of +1.
Cards 7-9 have a value of 0.
Cards 10-Ace have a value of -1.

The count starts at 0 every time the decks are reshuffled, and each time a card comes out, it’s value is added to the tally.

## Factor in the decks

To get an accurate running count, one must take into account the number of decks left to be dealt.
In order to factor in the number of decks one would have to divide the running count by the number of decks waiting to be dealt. If your running count is +6 and there are 3 decks left, the real count is actually +2.

## Betting

Bets are increased when the count is running positive, meaning +2 and above.
Generally speaking, one would want to increase their bet by one unit for each point that the tally goes up.

# How to Solve a 3×3 Rubik’s Cube in Under 2 Minutes

###### First thing you need to know:
• On a 3 by 3 rubik’s cube the middle square of each face doesn’t move, and thus represents the color of that face.

• The cube must be solved layer by layer rather then face by face, that means that the center and corner squares must match the face next to them.

###### Moves:
• Hold the cube with the “Front” face towards you.

• Each turn is 1/4 turn rotation or 90°.

• By default each move is clockwise. If move is inverted – counter-clockwise – it uses an “i” indicator.