In one sentence, describe what the following article is about: This second coat generally doesn't need to be left on for long. Simply apply it just like the first coat, wiping off after 2-3 minutes. Let it all dry for another 6-8 hours before moving on. Do not add this second coat until the first has finished drying. Stain is for looks, but it will not protect the wood from moisture, oils, or warping. For that you will need to finish the final piece, protecting both the wood and your stain. You can choose from the following options:  Water-based polyurethane Polyurethane Wood lacquer Finishing oils Using a clean cloth or foam brush, simply apply a thin, even coat of polyurethane to the wood, then let it dry. Don't worry if it looks milky or white as you apply it -- it will dry clear. Water-based polyurethane is, by far, the easiest finish to apply, though it is less protective of water or oil than other finishes. Apply 2-3 thin coats, making sure there are no bubbles on each one. Let each coat dry, then sand it with 220 grit paper before applying the next one. This is the thicker, almost plastic-like clear coating on many tables and desks. If your furniture is going to be prone to nicks, scratches, and scuffs, this is your best bet for protection. To apply it, use a paint sprayer and aim for an even coat throughout. A natural-bristle brush can also be used, but you must work quickly, as lacquer dries quickly. Let it dry, using a brush to remove any bubbles or unevenness, then sand with fine-grit (220 or higher) paper. Apply 2-3 more coats, sanding between each one. Lacquer is harder to apply but worth the effort for expensive pieces. Apply a little bit of oil to a clean rag and rub it into the dry, stained wood. Let it soak according to the oil's instructions, then rub it off with a clean rag and apply 1-2 more coats. If the piece is subject to lots of wear and tear, this is not a very protective coating. You should use something more durable.
Summary: Apply a second coat of stain after the first has dried for a darker color. Finish the furniture after you're done sanding to protect it. Use a water-based polyurethane for a safe and easy finish. Use a traditional polyurethane for a strong, protective coating. Try out a wood lacquer for a gorgeous, soft finish on high-end furniture. Apply a penetrating oil, like tung, Danish, or antique oil, for a light and beautiful finish.

Problem: Article: Simultaneous solitaire is a type of double solitaire that allows for as many players as possible. Make sure that each deck is different and distinguishable from the others to avoid confusion. Remove the 2 jokers from each deck. It's important to make sure that every player properly shuffles their deck. If not, 1 player could have a massive advantage over the others. To shuffle, you can spread all the cards from a deck out on a table faced down. Mix them up with your hands and assemble them back into a pile when you're finished. Don't mix more than 1 deck at a time in a single area. If you're spreading the cards out, it's very easy for them to get mixed together. Simultaneous solitaire is played by everyone at once and revolves around speed. To ensure that the game is as fair as possible, use a whistle or a clap to announce the start of play. Players must place lower numbered black cards beneath higher numbered red cards and vice versa. With your stock pile facing down, flip the top card on the deck. Look at the card and look at the tableau and assess your options. You must place the cards in alternating colors in descending numerical order. You can only place cards in descending numerical order on top of each other. You cannot place a black 8 above a red 7. However, if you have a red 7 in your stock pile and a black 8 on the tableau, you can place the red 7 below the black 8.  For example, a jack of diamonds or hearts can only be placed below a queen of spades or clubs. You can send cards that you can't place from the stock pile to the discard pile. You can take cards from the piles in the tableau and place them beneath other piles. If pile 1 has a 10 of clubs and pile 5 has a jack of hearts, place the 10 of clubs below the jack of hearts in pile 5. Flip the last card in pile 1 upwards after you've moved the 10.  As the game goes on, you'll be using the tableau more and more. You will also need to move the cards on the tableau so you can access the face down cards in the piles. It's customary in solitaire to place all the aces in their own section of the playing area. To finish a pile, you need to place all of the 12 cards of each suit on top of their ace. For example, you have an ace of spades off to the side and you find the 2 of spades. Place the 2 on top of the ace. Do the same when you find the 3 of spades and so on. The winner is the first person to complete all 4 piles. If nobody is able to finish the game, the winner is the person with the most piles completed.  A completed pile consists of 13 cards from ace to king in the same suit. You can keep playing after the winner finishes to find out who comes second, third, fourth, and so on.
Summary:
Get a separate deck for each player. Shuffle each deck before play begins. Start the game with a whistle or clap. Make a move using the cards in your stock pile. Use the cards on the tableau to make a move. Place all aces off to 1 side when you find them. End the game when the first person has 4 completed foundation piles.