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you
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hi everyone is Jerry the bishop and
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Knight checkmate is regarded by many as
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the most difficult checkmate to master
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it's one that I know well and I'm going
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to share with you a systematic approach
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to solving this endgame so that you two
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can master it now the first thing to
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take note of is we have 50 moves or less
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to deliver checkmate
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otherwise it's considered a draw so
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where do we begin
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well we begin by looking at what colors
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Square our Bishop is on since we're
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working with a light square bishop this
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means we can only force checkmate if the
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opposing King is in a light square
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corner in this case we're talking about
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a a or h1 now the first of six steps is
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to simply centralize our pieces and let
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me be more exact keep in mind that our
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night is best coordinated with our
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bishop by playing to the same color
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square as our bishop with that said that
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means our Bishop and Knight will be the
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ones who occupied these two central
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light squares our King on the other hand
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will be on d4 or a five and in this case
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he's going to end up on e5 and when he
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gets there I'll let you know why exactly
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we wanted him on the e5 square so let's
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hop to it
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let's get these pieces centralized and
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complete step one our Bishop is looking
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good and we have our King now on this g5
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Square and our knight now on the same
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color Square as our bishop this took ten
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moves and it should take roughly ten
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moves for you to achieve this type of
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position and during this during these
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ten moves you'll note that the black
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King is staying far away from these
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light corner squares where we can force
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checkmate he's trying to put up as much
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resistance as possible by staying near
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this dark corner Square and the reason
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we wanted our King on this e5 square is
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for the simple fact that this black King
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is staying near this corner Square and
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we want our King as close to this corner
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square as possible so that's why we want
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our King Ani
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in fact in step two which is a very
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simple step we want to shift our King
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one step closer diagonally towards this
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corner square and this is done by first
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making a waiting move waiting moves by
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the way in this endgame are done with
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the King and the bishop never the knight
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so let's make a way to move with our
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king our bishop is fine where he's at
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nice and central so King to f5 King age
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seven King f6 we're done with step two
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what we do in step three is kick the
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King out of the corner and then optimize
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our Bishop in Knights position now when
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we do this when we kick the King out of
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the corner what's going to happen is
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that he will end up in one of two large
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triangles now what large triangles am I
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talking about I'm talking about the
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following large triangles that we can
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generate starting first at this light
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corner square and drawing like so this
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is one of the triangles he can end up in
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or this one right here once he is forced
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out of the corner he is going to enter
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one of these two large triangles and
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just to give a quick summary once he is
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in one of those two large triangles we
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will then try to kick him into a medium
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sized triangle and then finally one of
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these two small triangles and then give
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checkmate so let's see how we can do
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just that in order to kick the King out
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of the corner we need the help of our
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Knight he needs to control this corner
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square and he could do so by playing to
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f7 or g6 we're going to play to f7 in
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this case and we could see that that is
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the square using the bishop as our
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reference point it's the same square
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that the bishop can also go to so let's
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get our Knight to f7 but let's be a
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little bit careful about how we do so if
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we play the g5 looking to get here
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this is stalemate the black King has no
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legal moves and is clearly not in check
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this is stalemate a draw in other words
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and we want to avoid that so we can do
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so by first pivoting on d6 and only then
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jumping into this f7 square he is
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controlling this corner square the
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blacking is now very limited having only
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one move King g8 and now we shift our
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king over so he guards the h7 square
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King to g6 all these squares I have
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highlighted are controlled which means
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that the King is now forced in the
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direction we want them to go to namely a
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8 now let me point out that this
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position right here is one that can come
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about where it is white to move and if
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that is the case all you need to do is
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make a waiting move with the bishop
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keeping him on this diagonal of the
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large triangle and you could simply drop
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him back to b3
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the King will then have to go to g8 and
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it's the same procedure the King shifts
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over to defend h7 okay but that's not
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the case it is it was black to move in
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that case and once he's on f7 once he's
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moving in this direction we move our
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knight we centralize our Knight so the
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only way to centralize him is to play to
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e5 one of those four central squares and
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when he is there notice what happens the
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bishop is now allowed to guard the g8
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Square which means the King can't go
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back to the corner and after came to e7
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this is where we now optimize our Bishop
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and Knights position the way we do this
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envisioning this large triangle we post
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the Bishop 1 square from the edge of a
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triangle so in this case it's either b3
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or f7 but we're not going to go to this
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f7 square the King will be in charge of
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guarding the squares near this edge of
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the triangle so it's the further end of
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the triangle that we want the bishop to
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post up to so in this case it's Bishop
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to b3 and after king d6 we now post the
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knight
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right across from the bishop with one
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square separating them now take note of
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the great the great number of squares
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that the bishop and night alone are
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controlling they are forming a great
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wall and as we can see here there is no
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way for this black King to escape to the
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a1 square what we do from here is use
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our King and Bishop to help push the
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King into that medium-sized triangle now
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before we get to pushing the King into
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that medium-sized triangle let me just
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point out that you may encounter an
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opponent who runs away voluntarily from
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the dark corner square so let me quickly
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revert back to this position right here
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where we saw the King go to the corner
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what happens if the King tries to make a
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mad dash towards let's say this other
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corner this is how we can treat such a
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player we can play our Bishop to this g8
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Square and our our goal with this is to
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post our bishop on the diagonal of the
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large triangle we've done just that the
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King still tries to run away what we
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want to do next with our Bishop is
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optimize him and that's done by posting
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him right here one Square from the edge
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we want to get our Bishop on c2 so we
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need to get our night out of the way if
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our Bishop is on c2 we want to get our
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Knight right here
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so we post our knight on d6 the King
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still tries to run our knight gets to c4
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the king is still trying to run our
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Bishop plays here and very similar to
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the position we just saw this Bishop and
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Knight control all of these squares and
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yet again form a great wall from here
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you would then push the King into this
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medium sized triangle in this direction
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and then finally the very small triangle
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right here but he did not go in that
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direction but I believe it's an
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important what if a what-if scenario to
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cover he did instead go to the corner we
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ended up going about the position like
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so where we have our Bishop and Knight
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controlling again all of these squares
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blocking the King off so what we do from
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here is use our King and Bishop alone to
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push the King into this medium-sized
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triangle so let's do that next we get
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our King working he's controlling this
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square and we need to make a way to move
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waiting moves again are done with the
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bishop and King alone and when we're
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going to make a waiting move we're going
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to do so along this diagonal so Bishop
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c4 King there Bishop f7 this King is now
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forced in the direction we wanted to go
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to namely a a the King goes to d6 came
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to f8 we are slowly but surely forcing
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this King in the direction we want him
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to go to in fact he is now inside this
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medium-sized triangle and what we do now
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is shift our Bishop we no longer need
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our Bishop on this diagonal but rather
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the one on a4 where he is controlling
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the diagonal of the medium-sized
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triangle so we get our King working and
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our Bishop working in this position he
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was of course attacked we want to
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similar to how we optimized the bishop
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in the large triangle we do so in the
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medium-sized triangle as well one square
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away from the edge in this case it would
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be d7 or b5 if you go to b5 you're just
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getting captured so the bishop posts up
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he is optimized on this d7 square and
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after King to b6
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now is where we can reposition our
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knight in fact our night for the rest of
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the game he will only make four more
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moves and I could actually
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tell you the exact moves he will make
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from here on out he is going to be
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playing 2 F 4 D 5 f6 and d7 he's going
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to do this little zigzag and on that
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fourth move he's going to give either
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check or checkmate now from this point
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right here the knight is wanting to
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centralize himself on this d5 square
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that is three squares away from the
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corner square where we want the King to
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be we want our night on the d5 square so
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let's get him there first posting up on
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f4 after King to a5 the king is ready to
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run away but our Knight is there just in
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the nick of time to guard the B for a
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square and if we just take a look at
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again the bishop and Knights dominant
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position look at all the squares that
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they are controlling yet again a great
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wall is being formed and this King is
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now restricted to exactly these six
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squares just like we did in the large
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triangle we now use our King and Bishop
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to force the King into the small
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triangle so let's see that take shape
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that is done by having our King come
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over in this direction and push the King
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up towards the corner square so King a6
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king c5 king c4 we get our King working
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all the way up here and now we have an
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opportunity to finally post our bishop
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on the diagonal of the small triangle
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Bishop c8 King attacks the Bishop Bishop
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a6 King a7 and we could just make a
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waiting move at this point this is not
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the most efficient
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checkmate that I'm showing you from this
267
00:12:58,278 --> 00:13:04,009
point on it's one move slower than what
268
00:13:01,610 --> 00:13:06,050
you can really do but just for visual
269
00:13:04,009 --> 00:13:10,429
purposes I'm going to make a King move
270
00:13:06,049 --> 00:13:13,159
and then play King to be six right here
271
00:13:10,429 --> 00:13:15,528
is really this final position that you
272
00:13:13,159 --> 00:13:17,750
want to achieve where the bishop is on
273
00:13:15,528 --> 00:13:19,169
that diagonal and the King is right next
274
00:13:17,750 --> 00:13:21,419
to the bishop
275
00:13:19,169 --> 00:13:24,479
from this position we've restricted
276
00:13:21,419 --> 00:13:27,120
restricted the King to just these two
277
00:13:24,480 --> 00:13:29,610
squares and from here all we're needing
278
00:13:27,120 --> 00:13:33,169
to do is deliver checkmate and that's
279
00:13:29,610 --> 00:13:36,449
done like so moving the knight to this
280
00:13:33,169 --> 00:13:39,000
f6 square we essentially just want to
281
00:13:36,448 --> 00:13:42,000
control b8 at this point with the knight
282
00:13:39,000 --> 00:13:45,659
eventually and that happens soon enough
283
00:13:42,000 --> 00:13:49,100
Bishop b7 King to be 8 and finally
284
00:13:45,659 --> 00:13:51,958
Knight to d7 and that's checkmate so
285
00:13:49,100 --> 00:13:54,028
that's all for this video as always I
286
00:13:51,958 --> 00:13:56,989
hope you got something out of it take
287
00:13:54,028 --> 00:13:56,990
care bye
288
00:14:03,938 --> 00:14:05,998
you
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