click on the link or links under the video to play and with that let's get cracking um and let us get cracking how do we do this though we've got okay all right well so i'm looking at these cages and none of these four cell cages are particularly you know a particular i know there must be a NUMBER_TOKEN in a NUMBER_TOKEN cage of NUMBER_TOKEN cells i know there must be a NUMBER_TOKEN in a a NUMBER_TOKEN cell of NUMBER_TOKEN so i suppose i could let's label these up and see if that tells me anything but i don't think it's going to i mean my eyes are drawn and i'm sure yours are too to these open cells on the diagonal so presumably we have to do some sort of mega geometric trick to get started i'm actually having a few pangs of anxiety when i see these inequality signs after that a helped puzzle the other day but hopefully this won't be as complicated as that was otherwise this will be a very long video right so what i'm going to do is i'm going to try and work out the value of the white squares so how can we do that well we can use the rule of NUMBER_TOKEN so i know that every single three by three box in a sudoku once you've filled it filled it in will contain the digits one to nine what do the what does one to nine add up to if you add up all of them up you get NUMBER_TOKEN now that means if we add up the entire sudoku grid we get nine lots of NUMBER_TOKEN which is NUMBER_TOKEN now if i therefore add up all of the colored squares and deduct it from NUMBER_TOKEN i will get the values of the diagonals so let us see what that tells us so is there a quick way of doing this probably not there's a few NUMBER_TOKENs sprinkled around the grid i'll start with those i think so that gives me NUMBER_TOKEN straight off the bat so NUMBER_TOKEN NUMBER_TOKEN NUMBER_TOKEN NUMBER_TOKEN NUMBER_TOKEN ah okay so we get NUMBER_TOKEN from the reds if i add two lots of NUMBER_TOKEN together that's NUMBER_TOKEN so that's NUMBER_TOKEN to NUMBER_TOKEN NUMBER_TOKEN. so NUMBER_TOKEN and i haven't yet done the greens um so NUMBER_TOKEN to NUMBER_TOKEN NUMBER_TOKEN NUMBER_TOKEN NUMBER_TOKEN NUMBER_TOKEN ah okay so we get NUMBER_TOKEN if i haven't made a mistake so NUMBER_TOKEN minus NUMBER_TOKEN is NUMBER_TOKEN. now that means nothing to me i have to say so we now know that these white squares which i'm turning yellow add up to NUMBER_TOKEN.
NO_SEGMENT_TOKEN