cut in two. 05 GeekGold 0. The right way to shuffle is to perform 3 iterations of the following procedure (for a total of 3 overhands and 9 mash/riffles): An iteration is: Mash (or riffle) shuffle thrice. Riffle shuffling is harder but gives greater randomisation per shuffle I believe. people tend to not riffle/bridge shuffle. I use a combination mash shuffle and modified casino shuffle where you just riffle the corners closest to you. The “mash shuffle” used by most Magic players is similar to the riffle shuffle WHEN DONE CORRECTLY. Mash Shuffling vs. CryptoBusiness, Economics, and Finance. shuffle those half piles together. The type and quality of the sleeves can matter (e. I bent a Caesar: Rome vs Gaul card inserting into the sleeves GMT provided. In general, what matters for the purpose of shuffling is the end state of the library or deck. 7 is enough for a 52 card deck. Sleeve Kings stands by a "2 finger test", in which you can use 1 finger on each hand to try and split their sleeves. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. I pull a section from the middle of the deck and mash…Get a dollar store pack of playing cards and practice. Business, Economics, and Finance. Hence I usually mash sleeved decks and combine riffling and overhand shuffles for unsleeved decks. Pile shuffling exists because most players' mash shuffles are wildly insufficient until they're called on it at a tournament, which a lot of players will never participate in. Others have commented, sleeving makes it easier to smash/mash shuffle, which is easier to get away with being sloppy and needs less finesse than a riffle or other. It doesn’t count as a shuffle because it is reverse-able) Shuffle together piles 1,5 & 2,6 & 3,7 & 4,8. This prevents cards falling out of their sleeves and sleeves intertwining. You can manipulate the top card using either a riffle shuffle or a mash shuffle, true. Oh, and mash shuffling is essentially equivalent to riffle shuffling, they both achieve the same result with a very similar process - but, again, only when done often enough. 2: Depends on how well you know you shuffled. Mash shuffling is similar. Business, Economics, and Finance. It looks like there are several models that cost between $10-$30. Riffle Shuffling in Magic - A perfect mash shuffle. A pile "shuffle" should only be used to count your deck (which you should do at the start of each game); it does not randomize the deck. Mathematically however it would be in the exact same order as it was before the pile shuffling. Riffle shuffling is difficult to do with sleeved cards, doesn't randomize too well with sleeves, and is murder on the cards. ago. Divide the deck into two piles. Buy card sleeves and sleeve your cards. 10 smaller decks, then take 1 and shuffle into the others to make 9, etc. If a player is screwed, they're not presenting a threat, so I'm likely to ignore them and. If you want to do some further simulation, how would this compare? If you mash shuffle or riffle shuffle, you will sufficiently randomize the selection after approximately 7+ shuffles (There are papers on this for 52 card decks). Use softer sleeves. A lot of players use the term riffle shuffle when they mean mash shuffle but they are different shuffles for a number of reasons. My dragon shields for commander or double sleeved standard can hurt my fingers if I mash shuffle a lot. The secret? Split the deck in three piles of about thirty three. Mash shuffling should produce similar results, though I find that even dragon shields will have bent tips after a while. Crypto27 votes, 112 comments. ). What…Pile shuffling alone is not sufficiently random and may not be performed other than once each at the beginning of a game to count the cards in the deck. I come from Magic the Gathering, where cards have certain value so they are most oftenly sleeved. This video shows you how. Split into pile 1 and pile 2. I've bought 2 new sets of dragon shield mattes in the last month and split several sleeves within the first few hours of play. It's actually a riffle shuffle that looks different aesthetically, but the exact same interweaving of cards happens as in a riffle shuffle. Log In / Sign Up; Advertise on Reddit; Shop Collectible Avatars; Get the Reddit appEven throughout an entire game of Clank, you're probably not adding enough cards to ever make your deck large enough to properly riffle shuffle. and definitely dont use a mechanical card shuffler on anything but cheap poker cards. Business, Economics, and Finance. I have tried the mash shuffling Riffle shuffling is the most efficient means to shuffle a deck, but riffling 98 or 99 cards is exceptionally difficult. There are many games where, after playing a game, the cards will be grouped together in sets and therefore must be thoroughly mixed up before playing…Mash shuffling. Business, Economics, and Finance. I think it's a bit of an exaggeration to say it's really hard to shuffle. I'm not sure what exactly you're trying to show here. I never pileshuffle pilestack my deck, as I believe that is an ineffective way to count the deck. For a deck with 24 lands, I do 6 stacks. The number of repetitions required to achieve acceptable randomness increases with deck size, though. "mash" shuffling with sleeves is pretty different from the overhand shuffle, though. 8. which is no problem with poker cards but when it means. 3. Just riffle shuffle. Im planning on making it to the Pittsburgh GP in November and…I have smallish hands. I prefer to riffle my. To undo a double-X pile, count how many cards end up in the pile, then do a double-Y pile, where Y is the number of cards that end up in the pile. When the deck is resting in my hands, take a handful of cards from the left/bottom end and mash them into the right/top end. The source is on this Numberphile video . 5. Pile shuffle by splitting into 8 piles then mash those pile together. which is no problem with poker cards but when it means. And always cut opponent's deck. A single mash take 1 second with good quality sleeves, but isn't recommended without. Mash shuffling is where you hold the deck in two semi-equal halves and open them slightly to each other from the sides, allowing one half to slide or "mash" into the other. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. Mash shuffling is when you split the deck in two and then push both stacks together. Go ahead and mix in some regular overhand shuffling too. So the upshot of all this is that, unless you shuffle your deck very thoroughly (say, a dozen riffle / mash shuffles) before each game, some traces of the original non-random order are going to remain. Shuffling is often followed by a cut, to help ensure that the shuffler has not manipulated the outcome. CryptoPile shuffling makes sure that they are relatively evenly distributed throughout my deck. 687K subscribers in the magicTCG community. 100 card deck into A/B and C/D. Split your deck into 3 pieces, making a left, center, and right pile. With 60 cards and the players likely not being very good at shuffling, ~10 riffle shuffles would be enough to properly randomize. An overhand shuffle is about 100 times less effective. My friends and I riffle all the time. Not a fan of riffle shuffling for some reason. Further, mash shuffling is random, so your first sentence is incorrect or at least strongly misleading. Shuffling : r/magicTCG - Reddit. OK, so I have 4 different EDH decks, and whenever I go through and swap out cards, I try to arrange the so lands are separated by 1-2 cards (so…Smash shuffle things in sleeves. And then if you are pile shuffling to randomize, you need to randomly skip a pile occasionally. I've purchased Dragon Shield and they work well while shuffling and I've also purchased some Ultra Pro Pro-Slayer and they are significantly worse while mash shuffling. A Friend in a playgroup insists that manaweaving in between matches at a…One of the benefits of sleeving cards is the ability to quickly mash shuffle which is similar to the randomness of the riffle shuffle. To me, mash shuffling sleeved cards is faster, easier, and smoother while achieving the same level of randomness. It still suffers from its pseudo-random issues or riffling but prevents the. If a player is flooded in EDH it's not that big a deal- they can cast their commander or they'll draw into stuff eventually. This difference is minor, and can easily be overcome by doing a few more mashes than riffles for equivalent randomization. You want the cards to be spread out and intersecting with eachother, if you are getting clumps of 3-5+ cards sticking. It only works with sleeved cards. I've never had it be an issue…Mash shuffles are not riffle shuffles. Hand shuffling is also not random unless you are perfect in your shuffling. Mash shuffling though is a lot easier and definitely worth sleeving. You can't say "well I mana-weaved and pile shuffled so I only need to mash shuffle 3x and then cut". 15 31 comments Best iliteratSqirel • 5 yr. Then usually shuffle in hand and cut a few times. Mash shuffling is pretty much equivalent to riffle shuffling. Since I use sleeves, I like to mash shuffle- take two stacks side by side and force them together. Doing more than 2 pile shuffles is not very useful. Mash shuffle is good at complete randomization of the deck. Mash shuffling is almost as good as riffling; while the math would say fewer riffle shuffle is required for a 99 cards deck than mash shuffling, the difference is less than 1 shuffle. Dec 10, 2021. -6. It’s a more predictable shuffle, so you have to do it more times compared to the riffle to randomize it a comparable amount. Expand user menu Open settings menu. Shuffle the left and middle pile together several times, then split them into two even piles, replacing them in front of you. You should still do it when you need to count your cards. 3. Riffle shuffling is harder but gives greater randomisation per shuffle I believe. I'm not sure what exactly you're trying to show here. I just mash shuffle. Pile shuffling can be used to stack your deck. You split the deck and "mash them" together at the sides or corners sliding them together smoothly because the sleeves are more slippery and taper at the ends to thin profiles. For my money, one of the benefits of Hyper Mats is that you don't have to mash shuffle. Learn how to mash shuffle cards so you don't damage them!Many of you have asked about my custom playmat. In paper, I normally do an pile shuffle + mash shuffle before the start of a play session, to be confident its fully randomised. During games, I just mash-shuffle 4-5 times. 24K subscribers in the DigimonCardGame2020 community. Split the deck into two 40 card piles and shuffle those. Mash them together, smartly, ie try to have about 40-45 cards in each stack consistently mash together on each shuffle. Saves time shuffling all the cards up! Mash Shuffling vs. Collect my field, hand, & banish pile, and mash-shuffle that into my deck. Advertisement Coins. The competitive scene has changed a lot since then, and there's no prescribed shuffling method, as long as you can sufficiently randomize your deck (but 99% players mash shuffle their sleeved cards). The goal of shuffling is to randomize a deck. If angled right, you can see the cards and stack the deck. Some people believe. Split the big group of cards into piles you're able to mash shuffle > mash shuffle each pile > cut each pile, then mash shuffle different cuts together > rinse and repeat. pile A becomes A1 and A2 pile B becomes B1 and B2 pile C becomes C1 and C2 Shuffle A1 and B1 together, B2 and C1 together and A2 and C2 together. It is mathematically less randomized than riffle shuffling/mash shuffling. Mash Shuffle. If you don't want to sleeve, you can learn to gently riffle shuffle the corners like this, but you'd be a little crazy to demand everyone else at your game night do the same. I mash shuffle there deck 9 times when it is presented to me, as I believe 9 is enough to randomise a completly stacked deck. Then mash shuffle the third and the two thirds. A diverse community of players devoted to Magic: the Gathering, a trading card game ("TCG") produced by…Hello, I just want to make sure I'm not accidentally cheating. Solo Shuffle and Blitz. October 12, 2013 7:55 p. The only way to do it is split into multiple stacks. It’s a habit I picked up in Arkham LCG, when the cardboard tokens would stick together. Beyond that, a lot of newer players tend to have misconceptions about how the random element of Magic works. ) Shuffle. Especially when the cards are small and the sleeves give that little bit of extra size. When you mash shuffle, you take half of your deck and sort of weave it into the other half. For mash shuffling, sleeves are absolutely the way. Shuffle. Do a quick four pile split. I finish with a few stripping shuffles. But ultra pro or dragon shield pro fit transparent are way softer and don't damage my fingers. That said, pile shuffling and then riffle/mash† shuffling gets random very quick. I roughly divide the deck into 3 to 5 piles depending on how big it is. I think the latter is more limited by hand size. I like to think this mixes my cards pretty well, especially if the lands are stacked after a game. ultrapro look nice. Preferably not in the middle. The actual shuffling part is easy and quick, but has major downsides, like how you have to pay for sleeves, you have to hold sleeved cards, you can shuffle fewer cards at a time (since they’re thicker), you’re likely going to end up with corners poking into your skin. Hey all, I was playing with a friend yesterday and I was having massive issues with my mana clumping and drawing the exact same cards every single…i) Shuffling ease Your analysis on shuffling ease covers only weave shuffling, and a complete analysis should cover other common types of card handling. It's as good as riffle shuffling and you don't bend your cards at all. mash both piles together. Overhand shuffle. I start piles 5 through 8 with these cuts. On a whim I bought some DS perfect fit inners and voila, no more issues. put all the card back into one pile. Maybe include some pile shuffling if the cards need splitting (like after playing a set collection game such as Bohnanza). So mash shuffling is probably the best way to do it. With 60 cards and the players likely not being very good at shuffling, ~10 riffle shuffles would be enough to properly randomize. Furthermore, it is said how "Randomization is defined as bringing the deck to a state where no player can have any information regarding the order or position of cards in any portion of the deck. You'd actually slowly create more and more clumps. Shuffle together the new piles 1,4 & 2,3. Ten times should be absolutly sufficient. I will generally start by doing a quick pile shuffle, then do what I believe is called overhand shuffling (though alternating between either the cards going on top, going on bottom, and then once 1/2 - 1/4 of the deck is left mash shuffling it somewhere in the middle). The exact method is to hold the deck sideways in one hand. To do so, you make sure you grab the top X cards, and mash them so that they overlap the bottom X cards. I don’t sleeve for protection necessarily. I then repeat this process 2 or 3 more times before mash shuffling them back together into 1 pile. Shuffle. I split my deck into two roughly equal halves and shuffle each of those 6-8 times with the "mash" shuffle (gently mash two piles together with one on an angle from the corner so they slide together easily; basically a riffle without the bending). Combine either piles C & E together, or C & F together. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. )Im relatively new to magic, in that i have been playing for a few years but it has been off and on. 683K subscribers in the magicTCG community. Then split em in half and take half with the old third. 20 lands I do 4. Doing the mana-weaving and pile shuffling add nothing, but can be used to cheat, that's the only UPSIDE they have. Riffle 7 times is for a 52 card playing card deck (or 60 card deck for most constructed formats). It's a bit unyielding, practice makes perfect. Use the outside of your thumb to pull back towards the top of your hand (think like thumbing through a pack of cards) to create a little more space. 6 - Do a wash. Once you've started your play session, side shuffling/mash shuffling between games is normally good enough. more. pile shuffle twice, then do a normal shuffle (mash, rifle, etc. its a guarantee that it will mangle cards. I just shuffle a fuckload and hope its enough. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. 3. Pick up half of each pile. Since mash shuffles do not generally line up the piles, the offset represents fewer points of contact, making for fewer instances of one card having a chance to go above or below an adjacent card. The shuffling is the same. Throwing in some chop and pile shuffling -- even though these methods on their own are worse than riffle shuffling -- changes the placement of the cards within the card so that each card sees time in the sections of the deck that. CryptoUpdate: Thanks everyone for the suggestions, I decided to check out mash shuffling and double sleeving my deck. Just do the mash shuffle, it works a lot better. Learn how to mash shuffle cards so you don't damage them!Many of you have asked about my custom playmat. Putting sideboard cards into your deck and then not shuffling isn't allowed either, but as long as you shuffle sufficiently afterward then you can do almost anything you want during your three minutes. Occasionally the shuffles during games will be replaced with mash shuffling for numerous reasons involving time, as it's usually slightly faster. Mash shuffling with sleeves does not produce clumps of 4+ cards. ago I watched an old LSV-Turtenwald match recently and realized that Owen uses a pretty interesting technique to make the cards. If you mash shuffle or riffle shuffle, you will sufficiently randomize the selection after approximately 7+ shuffles (There are papers on this for 52 card decks). Good randomization with the smallest chance of card damage. In theory, it’s very. Pretty sure it's still 7-8 for mash shuffle. Mash shuffling is a slightly weaker version of rifle shuffling so if you cut the deck well it will take maybe 9 times for it to be sufficient. Business, Economics, and Finance. Do a few mash shuffle into a hindu shuffle then mash again and repeat for a few time managed to produce a lot of different results from a stacked (or as they say, "de-clumped" lol) deck when I tested it. And occasionally swap the halves before continuing. The point is you have to mash shuffle normally AFTER doing any weird mana-weaving or pile stuff. If anything, a hand-over-hand or mash shuffle is going to ding the edges faster than a riffle will bend the corners. However, this is very time consuming and I wouldn't recommend doing both shuffles at even an FNM, as it takes too much time. Mash shuffle. Business, Economics, and Finance. Games with really big card decks. Share. But at the end of the day mash shuffling is so much easier than riffle shuffling, and is only possible with sleeved cards. Good afternoon judges. This prevents accidentally leaving the top and bottom cards unshuffled, which can happen if you inadvertently offset the. put the result on the table. It's a common way to shuffle in TCGs since card sleeves make it easy/quick to do, and it achieves a good enough randomization without having to bend the cards as you would in a riffle. Many people don't like riffle shuffling because the cards are being bent a certain amount, so mash shuffling usually comes out on top. I'm a bot working hard to help Redditors find related videos to watch. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. I don't cheat, and I don't want to potentially put anyone in the position where they think they just lost to a cheater and don't know how to proceed. I have sleeved my cards, so I will typically mash shuffle a few times then roll two differently colored d10s. Tip. I would go 8 mash shuffles, just to be safe :)Yep, thats how we play in casual league. Mash shuffling, when actually done properly, results in "sufficient randomization" for competitive events after 7 mash shuffles. Many people have difficulty in properly shuffling. As long as you aren't doing fancy, dramatic bends like you're a stage magician you won't actually hurt sleeved cards. The first time. Finish off with 4 on top. Then mash shuffle your deck a few more times. This got downvoted why? I personally hate riffling. Mash Shuffling vs. If the deck was. First I split my deck in 2. Business, Economics, and Finance. Many people have difficulty in properly shuffling. Hope your whole playgroup are gods of shuffling or you’re gonna regret this after the first time someone mashes the open side of the sleeves. 98 votes, 177 comments. CryptoHigher end sleeves (like those from Ultra Pro) tend to shuffle better since they're thicker. Riffles can be almost as fast and can be done without sleeves, assuming you practiced, but I don't like bending expensive cards and it can be hard with wonky sized decks. Yeah I struggled a lot shuffling my DragonShield mattes. Take any deck (ideally 60 cards because 99 EDH monsters have their own problems) and do your normal mash shuffle iteration but have one hand above the other and merely combine the piles such that you can distinguish which card was originally in the left hand and vice versa. To be able to mash shuffle (my prefered way of shuffling), I have to overextend my left thumb to fit the deck in my hand and perform the movements. Depends on what you are used to really. I've seen people bend their cards damn near 90 degrees trying to do a riffle shuffle and I almost wanna call the cops and report a crime every time I see it. If you know you mash like crap (a common mistake is leaving the top and bottom of the deck mostly untouched) and didn't mash enough, it's probably bad shuffling. The point of the stiffness that makes you unable to brutalize your cars the way you mention is what makes them easier to shuffle. But, that's true of any hand-based shuffling method. Much like a normal riffle this isn't going to be perfect every time (this is desired even as if you're perfectly weaving 1 card from each pile after a certain number of shuffles you've just reversed what you. Business, Economics, and Finance. [citation needed]. Also, like mash shuffling is so fast that you can easily do 10-12 mashes in the time it takes to do 7 riffles. Terraforming Mars is a great example of a game where you need to shuffle properly between games, as due to it being a tableau builder the cards will tend to end up clumped together. Mash shuffling can cause damage via the edges of the cards being pushed against each other (sleeving the cards makes mash shuffling a lot better of an option). Repeat. Feels weird at first but it's quicker and cleaner then mash shuffling. Pile vs. With sleeved cards I do the weave/mash shuffle, but instead of always splitting into half, I also pick up the middle ~2/4 of the deck and mash it into the combined top ~1/4 and bottom ~1/4 of the deck. mash shuffling is the middle ground, of will randomize if done correctly/enough, and less likely to "damage" cards because mtg is basically a whore's parade with ridiculously expensive cardboard. (Mash shuffling often leaves sections of the deck at each end unmixed. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. In the mathematics of shuffling playing cards, the Gilbert–Shannon–Reeds model is a probability distribution on riffle shuffle permutations that has been reported to be a good match for experimentally observed outcomes of human shuffling, [1] and that forms the basis for a recommendation that a deck of cards. I usually mash shuffle a few times, do a pile shuffle, mash a few more times, cut and all set. If you mashed a perfect 30/30 7-10 more times your deck would no longer be this perfect stack of land - spell - land etc. It also protects the edges of your cards from mash shuffling damage. It's as good as riffle shuffling and you don't bend your cards at all. 139 votes, 79 comments. This is me, with zero training or practice, doing a near-perfect mash shuffle of 60 Magic the Gathering cards. They say you can't, and if you can it takes a lot of effort. That's one riffle-equivalent, approximately, in terms of the. -The top portion I put on the bottom of the deck. However, he was quite slow at shuffling because the deck was big, he also kept switching ways of shuffling, like one mash, one rifle, one pile and so on. Don't flicker cards in your hand. This thread is archived. I bought a BRAND NEW box of Dragonshield reds. The things that weren't mentioned here about mash shuffling - make sure you (or your opponent) can't see the cards. You may have to cut a couple of times depending on your sleeves, the surface and your particular condition - the bottom cards might stick. ago. Combine the remaining two 25-card piles (D & F or D & E, depending on how you did Step #5. Mash shuffle involves "sliding" one half of the deck into another. This makes for a very easy faro shuffle. Randomized is not the same as shuffled. well any other shuffle techniques but this is all personal . The 'mash' or 'side' shuffle is what's pictured in this thread. Repeat. Pick up half of each pile. Tip with GeekGold. Do the same thing with the left and right pile. If you sre that concerned about the condition of your cards, use sleeves, even penny sleeves are better than. I picked up magic for the first time yesterday after a 9~ year gap and decided to play EH primarily, but after sleeving 9… The mash shuffle, made possible via sleeves is basically riffling without bending cards. shuffling large decks I can comfortably table riffle 60-70 unsleeved cards, or mash shuffle 80-90 sleeved cards. They shuffle so smoothly that I can mash shuffle at least 11 times to fully randomize my deck in a quick. CryptoLol, yeah. Combining it with overhand shuffling will you the best results. I personally prefer mash shuffling with sleeves over. As people said, mash shuffle 7-10 times at the start of the game. Just, people who don't understand randomization. If you wanted to point out specifically that the calculations for # of shuffles are based on riffle shuffling, you could communicate that much more clearly. If you have higher quality sleeves it really helps too. In my experience, most people just do the overhand mash/waterfall shuffle because it's extremely easy to do with sleeved cards. Then cut each of the 50 stacks in half. TalenPhillips. Usually some combination of mash, pile, and overhand shuffling, then present to cut. You may check the MTG Comprehensive Rules: 701. • 5 yr. Use your palms to push the two halves together. Some of my favorites are KMC Hyper Mat, DragonShield Matte and. The Best (and Worst) Ways to Shuffle Cards - Numberphile. Put pile 5 on pile 3, and pile 6. You can emulate a riffle shuffle in a similar fashion with a mash shuffle without risking damage your cards or your opponent's cards. They also cost more. So pile and mash shuffling is completely normal for me. Business, Economics, and Finance. ReplyWhen shuffling another player's deck you must shuffle in a way that does not damage the cards. What is everyone's thoughts on how you would shuffle your cards? Do you put them in piles maybe the Yu-Gi-Oh shuffle? How about the bridge shuffle…Shuffling everyones deck well for them remove's the problem of someone undershuffling their deck. Shuffle AB1 and BC2 together, AB2 and AC1 together, and BC1 and AC2. put the result back on the table next to the other result pile. Crypto52 votes, 51 comments. It seems from the other comments that mash shuffle is equivalent to riffle shuffling and only needs about 7 mashes, but I find that when i mash shuffle (especially in edh), I feel the need to mash much more because maybe a card will slip out or I'll accidentally see a card and want to randomize more (because I wouldn't feel right knowing the. Ends up taking 4-5 times as long as a single smaller deck. Riffle shuffle is just asthetically more pleasing to do, but I don't like bending my cards if not necessary, so I just mash shuffle. Crypto714K subscribers in the magicTCG community. Riffle Shuffling Magic: the Gathering Cards|1 - Riffle or mash shuffle. Pile count is not shuffling, please don't do it unless you're deliberately counting your deck size. Got all the cards together and in a pile. Some people alternate the way they offset, but I always offset so the top of the top half is below the top of the bottom half. Put the two remaining piles into a new pile - one on top of the other. I've found that the best way to randomize is to have a good mix between mash and hindu shuffle. Take the top halves of each stack to generate a new 50 stack, do the same with the bottom halves.