## by:kolumbus |
20-Aug-2017, 04:05 | |

Careful elimination and Setti's rule (twice) will solve the whole puzzle. There is no chain needed, nore any guess/tryout. Mind the gap in col 1. |

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## by: Leren |
20-Aug-2017, 05:07 | ||

That's why I published an alternative. In fact Andrew's puzzle can be solved in a similar way without clues in C3 and G8. |

## by: Leren |
20-Aug-2017, 05:22 | ||

Yet another typo. I meant C1 and G8. |

## by: kolumbus |
20-Aug-2017, 05:47 | ||

Thanks, Leren, your alternative is the kind of challenge I like. Needed a little chain. |

## by: Ben |
20-Aug-2017, 14:27 | Add to this thread | |

No chain is needed for Leren's alternative. | |||

## by:Christoph |
20-Aug-2017, 03:09 | |

I have found another way: E1 is defined (if AB1 is high and also if AB1 is low!). This solves E123, H12345, J24, hi/lo in col 1,.... and so on. |

## by: Toni |
20-Aug-2017, 03:42 | ||

Sorry, I can't follow. For me E1 is 458. How do you come to a decision for one figure? |

## by: Stefan |
20-Aug-2017, 04:28 | ||

@Toni try E1=8... you will get 2 as SC in this compartment, which is not possible in a 6-cell compartment, so E1 != 8, E1-3 is low, and so on |

## by: jgrab |
20-Aug-2017, 05:00 | ||

@ Christoph: Yes, but E1 still remains 45 until C2 is cleared through two Settis applied to row C. |

## by: Christoph |
20-Aug-2017, 09:08 | ||

@jgrab: Yes, I agree. After solving A3,C3,J78,H8, I had setti 4, thus 4 in C and H, setti 8, thus 8 in H and C thus C2=4. Thus E123 = 456 or 876. Thus E1= 4 or 8. Now careful analysis of col 1. |

## by: pgw |
20-Aug-2017, 09:33 | ||

@jgrab and @Christoph - setti 8 and setti 4 solve C2=4, thus E2 not 4. And since E3 and E9 are both no lower than 6, E123 can only be 456 or 789 - not 678. So E1 is either 4 or 8, but then the logic of Christoph's original post compels E1=4. |

## by: pgw |
20-Aug-2017, 09:34 | ||

Um, I did a really bad job reading your posts, which make clear you figured out the setti thing. I don't understand why that leads you to say "yes, but" but anyways you can ignore me now... |

## by: Christoph |
20-Aug-2017, 10:22 | ||

Thanks pgw. TYPO in my last post. Correct reading: ....E123 = 456 or 789 (not 678). |

## by: jgrab |
20-Aug-2017, 12:09 | ||

@ pgw: My "but" refered to the fact that Christoph said E1 was defined, which sounds like the definite filling if the cell. |

## by: Christoph |
20-Aug-2017, 17:19 | ||

Sorry, jgrab, for my not really correct english expreesion. |

## by: Christoph |
20-Aug-2017, 17:21 | Add to this thread | |

This now is a real TYPO: correct: expression. | |||