else yeah so that'll come out NUMBER_TOKENpm tomorrow uk time and yeah anyone who finishes that quickly will certainly get a shout out now why don't we have a look at the miracle reborn and see what matches has done what it was done with the classic mitchell lee puzzle here are the rules normal sudoku rules apply cells separated by a knights or king's move in chess cannot contain the same digit let's stop there make sure we understand what that means so let's imagine the central cell of the grid was a five well i tried to type five in and i pressed six not a good start um now if this was a five a chess knights move would jump to all of these cells therefore none of these cells could be a five in this puzzle because of that restriction now a king's move is even simpler if we have a five here that's telling us that a chess king could basically go one cell in any direction so the practical consequence of that from a sudoku perspective is that you couldn't have a five in either of those positions normally you could but in this puzzle because they'd be a kings move apart that's illegal so don't do that now the final bit of the rules is a twist on the old one five nine rule many of you watch the channel will know this rule but basically what matches then says is digits in the nth column indicate in which column the digit n is placed in the respective row and then he gives an example so it says eg if row three column two is a five let's put five in there the fifth column in the third row so we're looking at this row and this is indexing um indexing the two because it's in the second column so that's telling us in the fifth column we would have to put a two so row three column five must contain a two and that rule applies throughout this grid not just to columns one five and nine it applies everywhere so let's do another example and check we can understand that let's put an eight in there it so somewhat randomly so that's in the fourth column so that's telling us in this row we need to put the digit NUMBER_TOKEN in the eighth column so it would go whoops there not NUMBER_TOKEN NUMBER_TOKEN. so that's how the rule works do have a go at the puzzle the way to play is to click the link under the video as usual now i get to play let's get cracking now unlike with the miracle sudoku i can see how to start this one instantly because of course because of this one five nine rule this is telling us this this one is in the third column so we know in this row we need to put a three in the first column so the this is one of the interesting things about one five nines they sort of pair off these digits sort of index each other this is ten this is in the first column so it's telling us the three uh we need to look for the in the third column for where the one goes and this is in the third column so it's saying we need to look in the first column for where the three goes etc so we can do the same with this two which is in the seventh column so we know that we need to put a seven in column NUMBER_TOKEN to make that rule work now i'm very tempted to look at this digit again now
START_SELFPROMO_TOKEN else yeah so that'll come out NUMBER_TOKENpm tomorrow uk time and yeah anyone who finishes that quickly will certainly get a shout END_SELFPROMO_TOKEN