- Code: Select all
*-----------*
|...|...|.2.|
|7..|.2.|89.|
|.21|..7|6..|
|---+---+---|
|1..|...|.8.|
|6..|392|..4|
|.5.|...|..9|
|---+---+---|
|..7|8..|56.|
|.16|.4.|..8|
|.9.|...|...|
*-----------*
Play/Print this puzzle online
*-----------*
|...|...|.2.|
|7..|.2.|89.|
|.21|..7|6..|
|---+---+---|
|1..|...|.8.|
|6..|392|..4|
|.5.|...|..9|
|---+---+---|
|..7|8..|56.|
|.16|.4.|..8|
|.9.|...|...|
*-----------*
*--------------------------------------------------------------*
| 3459 8 345 | 4569 f35 *13456 | 7-3 2 1357 |
| 7 6 345 | 45 2 *1345 | 8 9 135 |
|*359 2 1 | 59 8 7 | 6 4 f35 |
|--------------------+--------------------+--------------------|
| 1 3 9 | 457 57 45 | 2 8 6 |
| 6 7 8 | 3 9 2 | 1 5 4 |
| 24 5 24 | 1 6 8 |*37 *37 9 |
|--------------------+--------------------+--------------------|
| 23 4 7 | 8 1 9 | 5 6 23 |
|*235 1 6 | 257 4 *35 | 9 *37 8 |
| 8 9 235 | 2567 357 356 | 4 1 237 |
*--------------------------------------------------------------*
*--------------------------------------------------------------------*
| 3459 8 345 | 4569 e35 e13456 |d37 2 1357 |
| 7 6 345 | 45 2 f1345 | 8 9 135 |
| 359 2 1 | 59 8 7 | 6 4 35 |
*----------------------+----------------------+----------------------|
| 1 3 9 | 457 57 45 | 2 8 6 |
| 6 7 8 | 3 9 2 | 1 5 4 |
| 24 5 24 | 1 6 8 |c37 b37 9 |
*----------------------+----------------------+----------------------|
| 23 4 7 | 8 1 9 | 5 6 23 |
| 235 1 6 | 257 4 5-3 | 9 a37 8 |
| 8 9 235 | 2567 357 356 | 4 1 237 |
*--------------------------------------------------------------------*
*--------------------------------------------------------------------*
| 3459 8 345 | 4569 D35 D13456 |C37 2 b1357 |
| 7 6 345 | 45 2 E1345 | 8 9 b135 |
|c359 2 1 | 59 8 7 | 6 4 b35 |
*----------------------+----------------------+----------------------|
| 1 3 9 | 457 57 45 | 2 8 6 |
| 6 7 8 | 3 9 2 | 1 5 4 |
| 24 5 24 | 1 6 8 | 37 37 9 |
*----------------------+----------------------+----------------------|
| 3-2 4 7 | 8 1 9 | 5 6 a23 |
|d235 1 6 | 257 4 F35 | 9 37 8 |
| 8 9 H235 | 2567 G357 F356 | 4 1 237 |
*--------------------------------------------------------------------*
(2=3)r7c9 - r123c9 = r3c1 - (3=25)r8c1 => -2 r7c1 ; stte
\ r1c7 - r1c56 = r2c6 - r89c6 = r9c5 - (3=25)r9c3 /
3459 8 345 | 4569 35 13456 |a37 2 b1357
7 6 345 | 45 2 1345 | 8 9 135
359 2 1 | 59 8 7 | 6 4 35
---------------------+----------------------+---------------------
1 3 9 | 457 57 45 | 2 8 6
6 7 8 | 3 9 2 | 1 5 4
24 5 24 | 1 6 8 | 37 37 9
---------------------+----------------------+---------------------
23 4 7 | 8 1 9 | 5 6 23
235 1 6 | 257 4 e35 | 9 d37 8
8 9 235 | 2567 f357 356 | 4 1 c237
*--------------------------------------------------------------*
| 3459 8 345 | 4569 a35 13456 | 7-3 2 157-3 |
| 7 6 345 | 45 2 1345 | 8 9 135 |
|e359 2 1 | 59 8 7 | 6 4 f35 |
|--------------------+--------------------+--------------------|
| 1 3 9 | 457 57 45 | 2 8 6 |
| 6 7 8 | 3 9 2 | 1 5 4 |
| 24 5 24 | 1 6 8 | 37 37 9 |
|--------------------+--------------------+--------------------|
|d23 4 7 | 8 1 9 | 5 6 23 |
|d235 1 6 | 257 4 35 | 9 37 8 |
| 8 9 c235 | 2567 b357 356 | 4 1 237 |
*--------------------------------------------------------------*
Leren wrote:
- Code: Select all
*--------------------------------------------------------------*
| 3459 8 345 | 4569 a35 13456 | 7-3 2 157-3 |
| 7 6 345 | 45 2 1345 | 8 9 135 |
|e359 2 1 | 59 8 7 | 6 4 f35 |
|--------------------+--------------------+--------------------|
| 1 3 9 | 457 57 45 | 2 8 6 |
| 6 7 8 | 3 9 2 | 1 5 4 |
| 24 5 24 | 1 6 8 | 37 37 9 |
|--------------------+--------------------+--------------------|
|d23 4 7 | 8 1 9 | 5 6 23 |
|d235 1 6 | 257 4 35 | 9 37 8 |
| 8 9 c235 | 2567 b357 356 | 4 1 237 |
*--------------------------------------------------------------*
(3) r1c5 = r9c5 - r9c3 = r78c1 - r3c1 = (3) r3c9 => - 3 r1c79; stte
(3)r1c5 = r9c5 - r9c3 = r78c1 => -3 r1c1
- r3c1 = (3)r3c9 => -3 r1c 79
daj95376 wrote: FWIW, your chain contains an embedded Empty Rectangle that also forces an elimination.
*--------------------------------------------------------------------*
| 3459 8 345 | 4569 b35 13456 |c37 2 1357 |
| 7 6 345 | 45 2 1345 | 8 9 135 |
| 359 2 1 | 59 8 7 | 6 4 35 |
|----------------------+----------------------+----------------------|
| 1 3 9 | 457 57 45 | 2 8 6 |
| 6 7 8 | 3 9 2 | 1 5 4 |
| 24 5 24 | 1 6 8 |d37 e37 9 |
|----------------------+----------------------+----------------------|
| 23 4 7 | 8 1 9 | 5 6 23 |
| 235 1 6 | 257 4 5-3 | 9 f37 8 |
| 8 9 235 | 2567 a357 356 | 4 1 27-3 |
*--------------------------------------------------------------------*
SteveG48 wrote:
- Code: Select all
*--------------------------------------------------------------------*
| 3459 8 345 | 4569 D35 D13456 |C37 2 b1357 |
| 7 6 345 | 45 2 E1345 | 8 9 b135 |
|c359 2 1 | 59 8 7 | 6 4 b35 |
*----------------------+----------------------+----------------------|
| 1 3 9 | 457 57 45 | 2 8 6 |
| 6 7 8 | 3 9 2 | 1 5 4 |
| 24 5 24 | 1 6 8 | 37 37 9 |
*----------------------+----------------------+----------------------|
| 3-2 4 7 | 8 1 9 | 5 6 a23 |
|d235 1 6 | 257 4 F35 | 9 37 8 |
| 8 9 H235 | 2567 G357 F356 | 4 1 237 |
*--------------------------------------------------------------------*
(2=3)r7c9 - r123c9 = r3c1 - (3=25)r8c1 => -2 r7c1 ; stte
\ r1c7 - r1c56 = r2c6 - r89c6 = r9c5 - (3=25)r9c3 /
tlanglet wrote:SteveG48 wrote:
- Code: Select all
*--------------------------------------------------------------------*
| 3459 8 345 | 4569 D35 D13456 |C37 2 b1357 |
| 7 6 345 | 45 2 E1345 | 8 9 b135 |
|c359 2 1 | 59 8 7 | 6 4 b35 |
*----------------------+----------------------+----------------------|
| 1 3 9 | 457 57 45 | 2 8 6 |
| 6 7 8 | 3 9 2 | 1 5 4 |
| 24 5 24 | 1 6 8 | 37 37 9 |
*----------------------+----------------------+----------------------|
| 3-2 4 7 | 8 1 9 | 5 6 a23 |
|d235 1 6 | 257 4 F35 | 9 37 8 |
| 8 9 H235 | 2567 G357 F356 | 4 1 237 |
*--------------------------------------------------------------------*
(2=3)r7c9 - r123c9 = r3c1 - (3=25)r8c1 => -2 r7c1 ; stte
\ r1c7 - r1c56 = r2c6 - r89c6 = r9c5 - (3=25)r9c3 /
Steve, I am having trouble understanding your deletion for this solution. The initial premise of 3r7c9 results in box7 without a digit (3), which is one possible conclusion. However, the path (2=3)r7c9 - r3c9 = r3c1 forces a (2) in r7c1 so I do not understand your conclusion r7c1<>2.
Ted
+------------+----------------+------------+
| 3459 8 345 | 4569 35 13456 | 37 2 1357 |
| 7 6 345 | 45 2 1345 | 8 9 135 |
| 359 2 1 | 59 8 7 | 6 4 35 |
+------------+----------------+------------+
| 1 3 9 | 457 57 45 | 2 8 6 |
| 6 7 8 | 3 9 2 | 1 5 4 |
| 24 5 24 | 1 6 8 | 37 37 9 |
+------------+----------------+------------+
| 23 4 7 | 8 1 9 | 5 6 23 |
| 235 1 6 | 257 4 35 | 9 37 8 |
| 8 9 235 | 2567 357 356 | 4 1 237 |
+------------+----------------+------------+