The New Sudoku Players' Forum

by **ArkieTech** » Thu Mar 07, 2013 4:35 am

Code: Select all: *-----------* |.72|..5|...| |...|9..|.1.| |3..|.2.|9..| |---+---+---| |..4|5.9|.36| |...|3.1|...| |63.|2.4|7..| |---+---+---| |..5|.1.|..8| |.1.|..2|...| |...|8..|16.| *-----------*

by **Leren** » Thu Mar 07, 2013 5:21 am

Code: Select all: *--------------------------------------------------------------* | 9 7 2 | 1 34 5 | 6 8 34 | |b458 b4568 b68 | 9 b34 b678 |b2345 1 23457 | | 3 4568 1 | 67 2 678 | 9 47 457 | |--------------------+--------------------+--------------------| | 1 28 4 | 5 7 9 |c28 3 6 | | 2578 258 78 | 3 6 1 |c248 249 249 | | 6 3 9 | 2 8 4 | 7 5 1 | |--------------------+--------------------+--------------------| | 247 2469 5 | 467 1 67-3 |c234 2479 8 | | 478 1 3678 | 467 59 2 | 345 479 34579 | | 24 249 37 | 8 59 a37 | 1 6 2459 | *--------------------------------------------------------------*

als xy-wing: (3=7) r9c6 - (7=2) r2c123567 - (2=3) r457c7 => r7c6 <> 3; stte

Leren

by **SudoQ** » Thu Mar 07, 2013 7:19 am

Code: Select all: |------------------|----------------|-------------------| | 9 7 2 | 1 34 5 | 6 8 34 | | 458 4568 68 | 9 34 678 | 2345 1 23457 | | 3 4568 1 | 67 2 678 | 9 47 457 | |------------------|----------------|-------------------| | 1 28 4 | 5 7 9 | 28 3 6 | | 2578 258 78 | 3 6 1 | 248 249 249 | | 6 3 9 | 2 8 4 | 7 5 1 | |------------------|----------------|-------------------| | 247 2469 5 | 467 1 7(3)-6| 24(3) 2479 8 | | 478 1 78(36)| 47(6) 59 2 | 45(3) 479 34579 | | 24 249 37 | 8 59 37 | 1 6 2459 | |------------------|----------------|-------------------|

It is easier to remove digit 6 from cell r7c6 (using 36 in r8).

/SudoQ

by **pjb** » Thu Mar 07, 2013 10:52 am

An AIC:

(7=6) r3c4 - r8c4 = (6-3) r8c3 = r9c3 - (3=7) r9c6 => r23c6, r78c4 <> 7; stte

Phil

by **ArkieTech** » Thu Mar 07, 2013 12:29 pm

Code: Select all: *--------------------------------------------------------------------* | 9 7 2 | 1 34 5 | 6 8 34 | | 458 4568 68 | 9 34 678 | 2345 1 23457 | | 3 4568 1 | 67 2 678 | 9 47 457 | |----------------------+----------------------+----------------------| | 1 28 4 | 5 7 9 | 28 3 6 | | 2578 258 78 | 3 6 1 | 248 249 249 | | 6 3 9 | 2 8 4 | 7 5 1 | |----------------------+----------------------+----------------------| | 247 a2469 5 | 467 1 e37-6 | 234 2479 8 | | 478 1 b3678 | 467 59 2 | 345 479 34579 | | 24 249 c37 | 8 59 d37 | 1 6 2459 | *--------------------------------------------------------------------* L-wing 6r7c2=(6-3)r8c3=r9c3-r9c6=3r7c6 => -6r7c6; lclste

vanhegan Extreme February 27, 2013