## The Time Calendar

Post the puzzle or solving technique that's causing you trouble and someone will help

### The Time Calendar

the grid for 19th Jan is marked as 'easy' but i think it's impossible. I believe the square marked 'a' has to be both 3 and 5

. 2 6 | . . a | . 7 1
. 5 9 | . 8 . | . . 6
4 . 1 | . . 9 | 2 . .
------+-------+------
. . . | . . 3 | . 9 .
. 8 7 | 5 6 4 | 1 2 .
. 4 . | 7 . . | . . .
------+-------+------
. . 2 | 3 . . | 8 . 9
1 . . | . 5 1 | 6 3 .
3 7 . | . . . | 4 5 .
John H

Posts: 1
Joined: 18 January 2006

### Re: The Time Calendar

John H wrote:the grid for 19th Jan is marked as 'easy' but i think it's impossible. I believe the square marked 'a' has to be both 3 and 5

Code: Select all
`. 2 6 | . . a | . 7 1 . 5 9 | . 8 . | . . 6 4 . 1 | . . 9 | 2 . . ------+-------+------ . . . | . . 3 | . 9 . . 8 7 | 5 6 4 | 1 2 . . 4 . | 7 . . | . . . ------+-------+------ . . 2 | 3 . . | 8 . 9 1 . . | . 5*1*| 6 3 . <- two 1s3 7 . | . . . | 4 5 .`

There is an error in that grid. The 1 in R8C6 seems to be out of place, as it conflicts with the one in C1 on the same row. Removing it makes the puzzle solvable with singles only.

Vidar
vidarino

Posts: 295
Joined: 02 January 2006

The 1 in r8c6 is indeed incorrect.

(You can tell which one of the two is incorrect by looking at the symmetry of the puzzle. r2c9 has a number; r2c4 hasn't.)
Last edited by Animator on Wed Jan 18, 2006 9:37 pm, edited 1 time in total.
Animator

Posts: 469
Joined: 08 April 2005

i believe this should be the correct puzzle, if you paste the puzzle into a solver without R8C6=1, then you get an 'easy' solution

Code: Select all
` . 2 6 | . . . | . 7 1  . 5 9 | . 8 . | . . 6  4 . 1 | . . 9 | 2 . . -------+-------+------  . . . | . . 3 | . 9 .  . 8 7 | 5 6 4 | 1 2 .  . 4 . | 7 . . | . . . -------+-------+------  . . 2 | 3 . . | 8 . 9  1 . . | . 5 . | 6 3 .  3 7 . | . . . | 4 5 . `
Crazy Girl

Posts: 189
Joined: 08 November 2005