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Columbus Circle, Manhattan campus ​hello and welcome to another video for tax strategy I'm Ben in this video I'm going to be covering some of the basic strategic concepts that will help you in playing tack and having a better success against someone who's really competing for squares with you so the central concept that I am going to be looking at in this video let me throw some pieces on the board here so as we start obviously player 1 plays when a player 2 pieces player 2 plays one of player one's pieces now better with me this is the first time using this tool in a video so what I'm gonna be looking at here is what I'm going to be referring to as influencer and this is something that's been suggested on the tax subreddit may have also heard it referred to as concentration the piece concentration or threats or things like that but I like the term influence I think it is a very succinct one-word way to describe basically the squares which your pieces are trying to exert control over so in this case here we've got two pieces on the board and this arrangement here is actually a good demonstration of one of the things I think about the opening the opening is still debated so in this case we have the dark piece here and this piece just by virtue of the squares is able to move to is exerting influence over these squares basically meaning that if white were to place a piece there black would be able to move on top of there and maintain control of that square now obviously he can't make control maintain control of all of them but he can maintain control to any one of them now the initial white piece here placed in the corner you can see only is maintaining influence over this square and this square so this is why I think a good number of people prefer placing their opponent's piece in a corner that when they are in the corner the amount of influence that piece is exerting on the board is less than in any other location if in this situation say white gets to go now so white throws a piece let's say here so we're on an edge not in a corner now here you can see the influence is still three squares instead of the two so that's that's still pretty good now so now in this situation what most often will happen is each player now whites got a not a very good starting coordination of his pieces there but so excuse me black here will probably be going to just build a road and just hey let's just code let's go straight in no no no waiting or anything now these pieces support each other because each is exerting influence over the other that both both ways they're protecting each other that just makes them a bit stronger there so you know what'll come along here do this now here because of this arrangement black is actually completely safe and throwing a piece here now this is where the influence starts to become important the influence not only tells us what squares we're kind of exerting control over but also who's going to win in a trade in this situation black is exerting influence in this direction this direction here and of course all the way along the sides white is also exerting influence back onto this piece onto this square so that one is contested at the moment and on this square so what that means is that because they're exerting influence Beca against each other that you could potentially have a competition here to see who's gonna win if we're gonna trade now in this situation since they both have the same amount of influence it's basically gonna go to whoever moves second if black moves a piece here then white has a piece supporting this one in exerting influence can just move their back on top of the stack you know nobody wins likewise for white white moves their black moves their black stays on top so what mostly we're gonna see is that they're no one's gonna trade they're not gonna train here they're gonna they're gonna keep placing pieces here so white says alright I'm gonna keep going for my road in this direction I'm also supporting this piece with this move so now here this piece there's no chance black can't take and main control maintain control of the resulting stack so blacks probably gonna say well I can't let him go for that road there I'm gonna come along here now we're getting kind of a just a line here of where we're you know building a wall between each other not a literal wall piece but a wall where they're exerting influence back and forth and eventually that will come to a head probably right around here because black can no longer just allow this to continue and this this will continue onward so you know black will move here white will probably say something in this case like say that's a good move because now White's exerting influence in two directions over this corner square so if black doesn't do something say if black makes a dumb move like this white wins because white has this piece here they can move on top you got to watch out for that influence when you're making a move but so ideally black would do something like he would actually have instead of doing this dumb move of placing this piece down he would move one of these over this way or even move this one up here obviously this one can't move here cuz you leave the square empty but you get the idea so let me go ahead and reload here and I want to talk specifically about how influence can get a little more complicated so we've got our initial pieces let's start with black here all right black piece yay whatever he's he's got his influence of all these squares around him you know no competition great so now whites turn White's gonna come in here what if white does this well obviously

black you can I can't maintain influence over this wall square with the flat piece so this is very much a case of whites going to win this influence unless black brings the cap into play which of course is what I am demonstrating here so in that case so black brings his capstone in so there you have essentially the B tears of influence that the wall piece or standing stone will win influence over a flat stone and the caf Joan of course will win an influence over everybody he's no one's gonna be able to top him that's as a virtue of the rules now the other place where this influence idea gets tricky is let's see we're going to make we're going to make a stack that's what we're gonna do well if I get my cursor back all right so let's say this situation we do this situation white moves on top so now you've got something like this now in this stack you might be wondering how that influence works well because of the order of pieces this is this gets kind of complex here because of the order of pieces on this stack this even though he's two pieces he is not actually exerting any influence over this square because let me just throw a black move in here so if he tries to move two squares he'll have to drop that black piece there and then the white one on the top will move here so we'll do like that and like that but now what is white done white has gone and gotten himself he's left a black piece with influence over the stack he's just captured that's one thing to watch out when moving stacks you don't want to leave as part of your stack move you don't want to leave an opponent's piece right next to the stack that you're ultimately trying to maintain control of so in this case you've just left the black player with the influence to go and capture that of course with the wall piece white always can get it back but that's less than ideal to have to use your wall on top of a stack you're not gonna be able to really extend that to to make a road so you gotta watch out for the influence on stacks in that manner so let's go ahead and let's let's kind of build a little bit of a typical all right so this something along these lines what I would consider to be kind of a typical set of moves that might end up in a game you've got black trying to threaten the center square white supporting it now in this case you can see blacks got two pieces threatening it and white has two pieces supporting it when you have an equal number of pieces is the opponent threatening or exerting influence rather over a square like in this case these two exerting influence over this and these two also exerting influence there the control will be maintained by the player who has the color of their stone here so like in this case here if white oops sorry we're on blacks turn let me just throw a couple of bad moves in for black bear sure now in this case similar thing going on except for in this case black has the stone in the center so if white let's see here so if white just does something dumb right nowhere on blacks move sorry so if white wants to capture here if he goes first blacks gonna cap cap and then black recaptures so you can see here we've got black on the bottom black comes out on top opposite would occur here with the white squares now this stack this gets extremely interesting as far as influence goes because there are three black pieces in there so that means several things it means that this stack is exerting influence over one two three one two three those squares all of those squares even more interestingly that Pete that stack can stretch out to reach to here with the top one so this is exerting an influence of one piece on this last square now you could move here and leave two dark pieces and I only move the top one to here leaving two dark pieces in this stack and one here so this square is controlled but it also has let's see so you could do one two depending on how you extend this deck you could actually exert an influence of up to three on this square right at this moment and actually to be fair that means that depending on your stack move you could also exert influence of two on this far stack here but it depends on subsequent move somewhat and of course this position as well also would be influence of three so you can kind of get an idea I mean this is getting what much more into advanced concepts but you get an idea how the idea of the influence is going to matter so let me see if I can just give a quick example of so let's say I want to show how you can exert an influence of three on this square here so we'll throw a white one down there and I say no I want that one so I'm gonna pick up on the drop here and there and there now White's gonna say no I want control black says hey no I still want control here so that's two well it's gonna try to cap back and as you can see black is still left with the last piece adjacent here so with that one stack they were able to overpower the two adjacent pieces and the original light piece that was on this square so that's stack with three dark pieces in it exerts more influence over a square two squares away than two adjacent pieces even though white started with their own cult piece on this color square so a stack with three in it obviously exerts more than the having two adjacent to the stack so basically so if you had if you're trying to capture this square say we got a piece they're having three pieces two squares away there's more influence than having two Spiess to two pieces adjacent so that's just one of the like many things to keep in mind and as I said this is getting moderately advanced up I just move that white one but white is fairly trouble now I would say black is facts doing pretty well there although it is gonna be difficult these snacks are very soft as they say with a lot of the white pieces in it but that's just me rattling off some of the very basic ideas about influence how to account for them in a game of tack you need to watch out for stacks you need to pay attention to how many pieces of each color are in the stacks and you need to make sure that you are both supporting and attacking pieces with every move so one real quick last example here of just say a normal game very common starting

locations here would be something along these lines well it's gonna angle in black will probably also angle in and in this case white that's gonna go this way avoid black altogether now here blacks gonna have a problem if they don't challenge white so we're going to try to exert influence over some of the squares here where where White's trying to build so let's say black goes there that that's an option over here is an option to this this particular battle there's a lot of options here because it wouldn't be great for what to start trying to capture yet so why it's gonna come in and say hey I've got support here I can move there no problem threaten your piece at the same time so black supports now we're getting into trouble here White's threatening a win we've got two possible locations for a win so black has to start moving has to capture so pretty much either one of these like this you see gonna have some trades of influence probably along these lines in this case I find that I play kind of I call it like the knife's edge where as black especially where I am just barely barely keeping me the other person from winning so he will go like this I'll go like that I have to go like that and then here we do this alright so we've we've backed it off to do two moves away from winning but the problem is he's got the stack here so I can't block with a normal piece here so black I'm pretending I'm black in this case I'm probably actually gonna have to use either that's not where I wanted to go I gotta be careful with this interface if that circle is on the board your piece is gonna land there so we'll just pretend that move never happened move there all right it's probably a case where black could throw a capstone that would be helpful this is gonna be difficult for black though and it's because white got to go by without much of a challenge from blacks influence Black's got wasted pieces over here that aren't contesting the same square as that White's after I'll probably do another video on stuff like this because influence I think is going to become very central concept to how tack is played and really the way to evaluate a particular board position now I'm hoping to get a lot more of the guys from the TAC subreddit in a future video perhaps I'll be able to have some discussion with them on video because I really would love to hear what everybody thinks and actually try to put some of these concepts through their paces so thanks everybody for watching I hope you enjoyed the video and I hope I will see you on plate a calm where I've been doing all of my my peace movement Here I am using a separate branch so I've gotten some nice pretty graphical options I consider this to be probably the most visually pleasing for me as well as most readable board so that I can add a glance see what's going on oh yeah definitely join me and many others on plate a comm play us some games we're happy to help answer questions and of course keep an eye out the TAC Kickstarter will be starting tomorrow that would be April 19th 2016 and running through May so you bill to pick up your very own physical tack set very exciting and I will hope I'm gonna be grabbing my own set from there as well thanks everybody I will see you next time you Russell Sage College, Troy.