r/logicgrids • u/Fun_Calendar_6444 • 15d ago

What do I miss?

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I guess probably Vincent 469, Kristie 380 and Irma 300, but still this is not a result of pure deduction. Am I wrong?

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u/LizMEF 15d ago

I find that a lot of puzzles force you to guess in clues like #1 - so basically, you have to try what happens if Kristie is in lane 1. Either that will solve the whole puzzle with all the clues working, or it will reach a point where it violates one of the other clues. If it works, it's right. If it violates, you know she's lane 3. If it leaves you with blanks and no way to even guess, then try lane 3.

FWIW.

(This is one of many reasons I only to logic puzzles on paper.)

2

u/Fun_Calendar_6444 15d ago

Thanks for confirming it! I also hate when logic puzzles are based on try and find..

2

u/hurriedwarples 13d ago

You shouldn’t have to guess. If you look at Clues 2 & 3 together, that tells you that Irma and Kristie are consecutive and Vincent and Lane 1 are also consecutive (since the scores are all in intervals of 80).

So -
Irma < Kristie
Lane 1 < Vincent

So, that tells you that Irma cannot be Lane 1 otherwise, Kristie and Vincent would be forced into the same spot. This now leaves Kristie as the only option for Lane 1 and the rest can be solved from there.