The New Sudoku Players' Forum

by **SteveG48** » Fri Feb 12, 2016 10:22 pm

Here's another that I stumbled across in our local newspaper this morning:

Code: Select all: *-----------* |...|6.1|7..| |..4|9..|...| |..3|.5.|..2| |---+---+---| |.3.|...|1..| |8.1|3.6|..5| |..2|...|.7.| |---+---+---| |6..|43.|8..| |...|..5|3..| |..9|2.8|...| *-----------*

by **Leren** » Sat Feb 13, 2016 12:14 am

Code: Select all: *--------------------------------------------------------------* | 259 2589 58 | 6 e248b 1 | 7 3 f4-8cC | |c27 2678 4 | 9 d28 3 | 5 168 168 | | 1 68 3 | 78 5 47 | 9 468B 2 | |--------------------+--------------------+--------------------| |b479 3 6 | 5 479 2 | 1 489 489 | | 8 a479 1 | 3 479a 6 | 2 49A 5 | | 459 459 2 | 18 18 49 | 6 7 3 | |--------------------+--------------------+--------------------| | 6 125 57 | 4 3 79 | 8 1259 19 | | 24 1248 78 | 17 169 5 | 3 1269 169 | | 3 15 9 | 2 16 8 | 4 156 7 | *--------------------------------------------------------------* Kraken Row 5 Digit 4 : 4 r5c2 - 7 r5c2 = r4c1 - (7=2) r2c1 - r2c5 = (2-4) r1c5 = r1c9 - 8 r1c9; 4 r5c5 - r1c5 = r1c9 - 8 r1c9; 4 r5c8 - r3c8 = r1c9 - 8 r1c9; => - 8 r1c9; stte

Leren

by **pjb** » Sat Feb 13, 2016 2:41 am

Code: Select all: 259 2589 58 | 6 b248 1 | 7 3 a48 d27 e2678 4 | 9 c28 3 | 5 168 168 1 68 3 | 78 5 47 | 9 68-4 2 ------------------------+----------------------+--------------------- 479 3 6 | 5 479 2 | 1 489 48-9 8 f479 1 | 3 479 6 | 2 g49 5 459 459 2 | 18 18 49 | 6 7 3 ------------------------+----------------------+--------------------- 6 125 57 | 4 3 79 | 8 1259 19 24 1248 78 | 17 169 5 | 3 1269 169 3 15 9 | 2 16 8 | 4 156 7 (4)r1c9 = (4-2)r1c5 = r2c5 - (2=7)r2c1 - r2c2 = (7-4)r5c2 = r5c8 => -4 r3c8, r4c9; stte \ r5c5

Phil

by **SteveG48** » Sun Feb 14, 2016 12:25 am

Here's my solution. It's essentially the same as Leren's Kraken 4r5, but with a different elimination:

Code: Select all: *-----------------------------------------------------------* | 259 2589 58 | 6 248 1 | 7 3 48 | |f27 2678 4 | 9 f28 3 | 5 168 168 | | 1 68 3 |g78 5 a4-7 | 9 b468 2 | *-------------------+-------------------+-------------------| |e479 3 6 | 5 479 2 | 1 489 489 | | 8 d479 1 | 3 c479 6 | 2 c49 5 | | 459 459 2 | 18 18 b49 | 6 7 3 | *-------------------+-------------------+-------------------| | 6 125 57 | 4 3 79 | 8 1259 19 | | 24 1248 78 | 17 169 5 | 3 1269 169 | | 3 15 9 | 2 16 8 | 4 156 7 | *-----------------------------------------------------------*

4r3c6 = (4r3c8)&(4r6c6) - (4r5c8)|(4r5c5) = (4-7)r5c2 = r4c1 - (7=28)r2c15 - (8=7)r3c4 => -7 r3c6 ; stte

Steve Stumble XII