Hamberder

Post puzzles for others to solve here.

Hamberder

Postby mith » Fri Aug 14, 2020 3:22 pm

Code: Select all
+-------+-------+-------+
| . . . | 1 3 . | . . . |
| . 1 . | . . 4 | 5 . . |
| . . 2 | . . . | . 6 . |
+-------+-------+-------+
| 1 . . | 3 . . | . 7 . |
| 2 . . | . 5 . | . . 8 |
| . 4 . | . . 6 | . . 9 |
+-------+-------+-------+
| . 5 . | . . . | 7 . . |
| . . 6 | 7 . . | . 9 . |
| . . . | . 8 9 | . . . |
+-------+-------+-------+
...13.....1...45....2....6.1..3...7.2...5...8.4...6..9.5....7....67...9.....89...
mith
 
Posts: 950
Joined: 14 July 2020

Re: Hamberder

Postby SpAce » Fri Aug 14, 2020 4:29 pm

I'm being lazy.

Code: Select all
.--------------------.------------------.--------------------------.
|  6     789   45    | 1     3     2578 |  2489    248     247     |
|  3789  1     3789  | 2689  2679  4    |  5       238     237     |
| a4-5   3789  2     | 589   79    578  | b14'389  6      b14'37   |
:--------------------+------------------+--------------------------:
|  1     689   589   | 3     249   28   | c26+4    7      c26+45   |
|  2     3679  379   | 49    5     17   |  1346    134     8       |
|  3578  4     3578  | 28    127   6    |  123     1235    9       |
:--------------------+------------------+--------------------------:
|  3489  5     13489 | 246   1246  123  |  7       12348   12346   |
|  348   238   6     | 7     124   1235 |  12348   9       12345   |
|  347   237   1347  | 2456  8     9    | c26+134  12345  c26+1345 |
'--------------------'------------------'--------------------------'

(4)r3c1 = (41-3|7|8|9)r3c79 =singles>= !UR(26)r49c79! => +4r3c1; stte

The weird =singles>= strong link means that the strong link itself is valid both ways, as it should be, but the 'singles' qualifier only works from left to right. For that reason I wanted to use an implication instead of a strong link, but it doesn't make sense because of the preceding weak link. Perhaps it would be clearer to write the whole thing as an implication chain to avoid that complication:

-4r3c1 -> 14r3c79 -> -(3|7|8|9)r3c79 ->singles-> !UR(26)r49c79! => +4r3c1; stte

(Then again, if that's reversed the 'singles' qualifier must be dropped.)
Last edited by SpAce on Fri Aug 14, 2020 5:04 pm, edited 1 time in total.
-SpAce-: Show
Code: Select all
   *             |    |               |    |    *
        *        |=()=|    /  _  \    |=()=|               *
            *    |    |   |-=( )=-|   |    |      *
     *                     \  ¯  /                   *   

"If one is to understand the great mystery, one must study all its aspects, not just the dogmatic narrow view of the Jedi."
User avatar
SpAce
 
Posts: 2671
Joined: 22 May 2017

Re: Hamberder

Postby denis_berthier » Fri Aug 14, 2020 5:04 pm

mith wrote:
Code: Select all
+-------+-------+-------+
| . . . | 1 3 . | . . . |
| . 1 . | . . 4 | 5 . . |
| . . 2 | . . . | . 6 . |
+-------+-------+-------+
| 1 . . | 3 . . | . 7 . |
| 2 . . | . 5 . | . . 8 |
| . 4 . | . . 6 | . . 9 |
+-------+-------+-------+
| . 5 . | . . . | 7 . . |
| . . 6 | 7 . . | . 9 . |
| . . . | . 8 9 | . . . |
+-------+-------+-------+
...13.....1...45....2....6.1..3...7.2...5...8.4...6..9.5....7....67...9.....89...


That one requires more than mere fish, even finned. It is also not enough to add (3D) bivalue-chains. But z-chains are enough.

Hidden Text: Show
***********************************************************************************************
*** SudoRules 20.1.s based on CSP-Rules 2.1.s, config = Z+SFin
*** Using CLIPS 6.32-r770
***********************************************************************************************
217 candidates, 1371 csp-links and 1371 links. Density = 5.85%
whip[1]: r1n6{c2 .} ==> r2c1 ≠ 6
hidden-single-in-a-column ==> r1c1 = 6
naked-pairs-in-a-block: b5{r4c6 r6c4}{n2 n8} ==> r6c5 ≠ 2, r4c5 ≠ 2
hidden-pairs-in-a-block: b1{r1c3 r3c1}{n4 n5} ==> r3c1 ≠ 9, r3c1 ≠ 8, r3c1 ≠ 7, r3c1 ≠ 3, r1c3 ≠ 9, r1c3 ≠ 8, r1c3 ≠ 7
swordfish-in-columns: n5{c1 c4 c8}{r6 r3 r9} ==> r9c9 ≠ 5, r6c3 ≠ 5, r3c6 ≠ 5
z-chain[4]: r3c6{n7 n8} - r4c6{n8 n2} - b2n2{r1c6 r2c4} - r2n6{c4 .} ==> r2c5 ≠ 7
z-chain[5]: r2n6{c4 c5} - b2n2{r2c5 r1c6} - r4c6{n2 n8} - r3c6{n8 n7} - r3c5{n7 .} ==> r2c4 ≠ 9
z-chain[3]: r7n9{c3 c1} - r2n9{c1 c5} - r4n9{c5 .} ==> r5c3 ≠ 9
z-chain[5]: r5c3{n7 n3} - r6c3{n3 n8} - b5n8{r6c4 r4c6} - r3c6{n8 n7} - r5n7{c6 .} ==> r6c1 ≠ 7
z-chain[5]: r2n6{c5 c4} - b2n2{r2c4 r1c6} - r4c6{n2 n8} - r3c6{n8 n7} - r3c5{n7 .} ==> r2c5 ≠ 9
whip[1]: b2n9{r3c5 .} ==> r3c2 ≠ 9, r3c7 ≠ 9
hidden-single-in-a-block ==> r1c7 = 9
whip[1]: c2n9{r5 .} ==> r4c3 ≠ 9
hidden-pairs-in-a-block: b4{r4c2 r5c2}{n6 n9} ==> r5c2 ≠ 7, r5c2 ≠ 3, r4c2 ≠ 8
whip[1]: b4n7{r6c3 .} ==> r2c3 ≠ 7, r9c3 ≠ 7
biv-chain[3]: r1n5{c6 c3} - r4c3{n5 n8} - r4c6{n8 n2} ==> r1c6 ≠ 2
whip[1]: r1n2{c9 .} ==> r2c8 ≠ 2, r2c9 ≠ 2
hidden-pairs-in-a-row: r2{n2 n6}{c4 c5} ==> r2c4 ≠ 8
biv-chain[4]: r3n5{c4 c1} - b4n5{r6c1 r4c3} - r4n8{c3 c6} - c4n8{r6 r3} ==> r3c4 ≠ 9
hidden-single-in-a-block ==> r3c5 = 9
naked-single ==> r4c5 = 4
naked-single ==> r5c4 = 9
naked-single ==> r5c2 = 6
naked-single ==> r4c2 = 9
hidden-single-in-a-column ==> r6c5 = 7
naked-single ==> r5c6 = 1
hidden-single-in-a-row ==> r5c3 = 7
whip[1]: r5n3{c8 .} ==> r6c7 ≠ 3, r6c8 ≠ 3
biv-chain[3]: b6n3{r5c7 r5c8} - r2c8{n3 n8} - b9n8{r7c8 r8c7} ==> r8c7 ≠ 3
biv-chain[3]: c4n4{r7 r9} - c4n5{r9 r3} - r3c1{n5 n4} ==> r7c1 ≠ 4
biv-chain[4]: r3c1{n4 n5} - r6n5{c1 c8} - b6n1{r6c8 r6c7} - b3n1{r3c7 r3c9} ==> r3c9 ≠ 4
finned-x-wing-in-rows: n4{r3 r8}{c1 c7} ==> r9c7 ≠ 4
z-chain[3]: r8n4{c9 c1} - r3n4{c1 c7} - r5n4{c7 .} ==> r9c8 ≠ 4
z-chain[3]: r8n4{c9 c1} - r3n4{c1 c7} - r5n4{c7 .} ==> r7c8 ≠ 4
z-chain[4]: r8n4{c9 c1} - r3c1{n4 n5} - c4n5{r3 r9} - c4n4{r9 .} ==> r7c9 ≠ 4
z-chain[4]: c2n8{r3 r8} - c7n8{r8 r3} - r1n8{c8 c6} - r4n8{c6 .} ==> r2c3 ≠ 8
finned-x-wing-in-rows: n8{r2 r7}{c8 c1} ==> r8c1 ≠ 8
biv-chain[3]: b4n3{r6c1 r6c3} - r2c3{n3 n9} - b7n9{r7c3 r7c1} ==> r7c1 ≠ 3
z-chain[3]: r2n8{c8 c1} - c2n8{r3 r8} - c7n8{r8 .} ==> r1c8 ≠ 8
biv-chain[4]: r1c8{n2 n4} - r1c3{n4 n5} - c1n5{r3 r6} - c8n5{r6 r9} ==> r9c8 ≠ 2
biv-chain[4]: r8c1{n3 n4} - r3c1{n4 n5} - r1n5{c3 c6} - r8n5{c6 c9} ==> r8c9 ≠ 3
z-chain[5]: r7n9{c3 c1} - r7n8{c1 c8} - c7n8{r8 r3} - c4n8{r3 r6} - r6c3{n8 .} ==> r7c3 ≠ 3
z-chain[5]: b9n8{r8c7 r7c8} - r2c8{n8 n3} - r5c8{n3 n4} - c7n4{r5 r3} - c7n8{r3 .} ==> r8c7 ≠ 2
z-chain[5]: b9n8{r8c7 r7c8} - r2c8{n8 n3} - r5c8{n3 n4} - c7n4{r5 r3} - c7n8{r3 .} ==> r8c7 ≠ 1
z-chain[5]: r3n4{c1 c7} - r8n4{c7 c9} - r8n5{c9 c6} - b2n5{r1c6 r3c4} - r3c1{n5 .} ==> r9c1 ≠ 4
biv-chain[5]: r3n1{c9 c7} - r3n4{c7 c1} - r8c1{n4 n3} - r9c1{n3 n7} - r2n7{c1 c9} ==> r3c9 ≠ 7
z-chain[5]: r9c1{n3 n7} - r9c2{n7 n2} - r8c2{n2 n8} - r8c7{n8 n4} - r8c1{n4 .} ==> r9c3 ≠ 3
biv-chain[4]: r9c3{n1 n4} - r1c3{n4 n5} - c1n5{r3 r6} - c8n5{r6 r9} ==> r9c8 ≠ 1
biv-chain[3]: r9c8{n3 n5} - r8n5{c9 c6} - b8n3{r8c6 r7c6} ==> r7c8 ≠ 3, r7c9 ≠ 3
hidden-single-in-a-row ==> r7c6 = 3
whip[1]: r8n3{c2 .} ==> r9c1 ≠ 3, r9c2 ≠ 3
naked-single ==> r9c1 = 7
naked-single ==> r9c2 = 2
hidden-single-in-a-row ==> r2c9 = 7
whip[1]: c7n2{r6 .} ==> r4c9 ≠ 2, r6c8 ≠ 2
naked-pairs-in-a-block: b3{r1c8 r1c9}{n2 n4} ==> r3c7 ≠ 4
stte

675138924
819264537
432597861
198342675
267951348
543876219
951423786
386715492
724689153
denis_berthier
2010 Supporter
 
Posts: 3972
Joined: 19 June 2007
Location: Paris


Return to Puzzles