200e200w's Weekly Extreme #4

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200e200w's Weekly Extreme #4

Postby 200e200w » Sat Mar 03, 2018 9:44 am

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

200e200w
200e200w
 
Posts: 208
Joined: 20 January 2018

Re: 200e200w's Weekly Extreme #4

Postby Leren » Sat Mar 03, 2018 10:20 am

1. Kite: (7) r2c2 = r2c9 - r1c7 = r5c7 => - 7 r5c2.

2. Kite: (9) r1c3 = r5c3 - r4c1 = r4c5 => - 9 r1c5.

3. Discontinuous Loop : 9 r1c4 - (9=7) r1c3 - r2c2 = (7-9) r2c9 = r2c45 - r1c4 => - 9 r1c4

4. Double Kite Loop :

Code: Select all
*---------------------------------------------------------------*
| 1      2      79   | 346     3458   34568 | 46789 3468  34789 |
| 3      78     4    |a29-16g  189    1268  | 5     1268  1789  |
| 89     6      5    | 7       13489  12348 | 2489  12348 13489 |
|--------------------+----------------------+-------------------|
|d29-467 147    8    | 5      e149   c124   | 3     146   147   |
| 4579   1345   1379 |f1349    6      1348  | 478   1458  2     |
| 2456   1345   1236 |b1234    1348   7     | 468   9     1458  |
|--------------------+----------------------+-------------------|
| 24567  9      2367 | 8       3457   3456  | 1     2345  345   |
| 24578  134578 1237 | 134     13457  9     | 248   23458 6     |
| 4568   13458  136  | 1346    2      13456 | 489   7     34589 |
*---------------------------------------------------------------*

(2) r2c4 = r6c4 - r4c6 = (2-9) r4c1 = r4c5 - r5c4 = (9) r2c4 loop => - 16 r2c4, - 467 r4c1; lclste (just one pointing pair).

Leren

PS - Just tried this in Hodoku and their solution was exactly the same. Is this a case of Great minds think alike, or All fools are cut from the same cloth. Probably both. Looks like we both should go and fly a Kite :D

Leren
Leren
 
Posts: 3209
Joined: 03 June 2012


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