The New Sudoku Players' Forum

by **ArkieTech** » Sun Jul 21, 2013 12:28 am

Code: Select all: *-----------* |...|.9.|...| |.9.|234|.1.| |..3|1.8|2..| |---+---+---| |93.|.6.|.72| |..2|...|1..| |15.|.2.|.64| |---+---+---| |..5|3.2|9..| |.2.|689|.5.| |...|.7.|...| *-----------*

by **Marty R.** » Sun Jul 21, 2013 1:17 am

Code: Select all: +------------+--------+----------+ | 2 18 18 | 7 9 6 | 34 34 5 | | 5 9 6 | 2 3 4 | 78 1 78 | | 47 47 3 | 1 5 8 | 2 9 6 | +------------+--------+----------+ | 9 3 4 | 8 6 1 | 5 7 2 | | 678 67 2 | 5 4 37 | 1 38 9 | | 1 5 78 | 9 2 37 | 38 6 4 | +------------+--------+----------+ | 467 467 5 | 3 1 2 | 9 48 78 | | 347 2 17 | 6 8 9 | 47 5 13 | | 38 18 9 | 4 7 5 | 6 2 13 | +------------+--------+----------+

Play this puzzle online at the Daily Sudoku site

DP 67 r57,c12

(8r5c1=4r7c12)-(4=8)r7c8=>r5c8<>8

by **Leren** » Sun Jul 21, 2013 4:23 am

Code: Select all: *--------------------------------------------------------------* | 2 18 18 | 7 9 6 | 34 34 5 | | 5 9 6 | 2 3 4 |a78 1 78 | | 47 47 3 | 1 5 8 | 2 9 6 | |--------------------+--------------------+--------------------| | 9 3 4 | 8 6 1 | 5 7 2 | | 678 67 2 | 5 4 37 | 1 38 9 | | 1 5 d78 | 9 2 c37 |b38 6 4 | |--------------------+--------------------+--------------------| | 467 467 5 | 3 1 2 | 9 48 78 | | 347 2 e17 | 6 8 9 | 4-7 5 13 | | 38 18 9 | 4 7 5 | 6 2 13 | *--------------------------------------------------------------*

XY Wing with transport; (7=8) r2c7 - (8=3) r6c7 - (3=7) r6c6 - r6c3 = r8c3 => - 7 r8c7; stte

Leren

by **pjb** » Sun Jul 21, 2013 7:22 am

Code: Select all: 2 18 18 | 7 9 6 | 34 34 5 5 9 6 | 2 3 4 | 78 1 78 *47 *47 3 | 1 5 8 | 2 9 6 ---------------------+----------------------+--------------------- 9 3 4 | 8 6 1 | 5 7 2 *8-67 *67 2 | 5 4 37 | 1 38 9 1 5 78 | 9 2 37 | 38 6 4 ---------------------+----------------------+--------------------- *467 *467 5 | 3 1 2 | 9 48 78 347 2 17 | 6 8 9 | 47 5 13 38 18 9 | 4 7 5 | 6 2 13

Type 1 BUG-lite of 467 at r357c12 => -67 r5c1; stte
Phil

by **ArkieTech** » Sun Jul 21, 2013 11:10 am

pjb wrote:Type 1 BUG-lite of 467 at r357c12 => -67 r5c1; stte

Phil, Nice!

Code: Select all: *--------------------------------------------------* | 2 18 a18 | 7 9 6 |c34 34 5 | | 5 9 6 | 2 3 4 | 78 1 78 | | 47 47 3 | 1 5 8 | 2 9 6 | |----------------+----------------+----------------| | 9 3 4 | 8 6 1 | 5 7 2 | | 678 67 2 | 5 4 37 | 1 38 9 | | 1 5 7-8 | 9 2 37 |c38 6 4 | |----------------+----------------+----------------| | 467 467 5 | 3 1 2 | 9 48 78 | | 347 2 b17 | 6 8 9 |c47 5 13 | | 38 18 9 | 4 7 5 | 6 2 13 | *--------------------------------------------------* (8=1)r1c3-(1=7)r8c3-(7=8)r178c7 => -8r6c3; ste

by **tlanglet** » Sun Jul 21, 2013 1:35 pm

Code: Select all: *--------------------------------------------------* | 2 18 18 | 7 9 6 | 34 34 5 | | 5 9 6 | 2 3 4 | 78 1 78 | | 47 47 3 | 1 5 8 | 2 9 6 | |----------------+----------------+----------------| | 9 3 4 | 8 6 1 | 5 7 2 | | 678 67 2 | 5 4 37 | 1 3-8 9 | | 1 5 d78 | 9 2 37 |e38 6 4 | |----------------+----------------+----------------| | 467 467 5 | 3 1 2 | 9 a48 78 | | 347 2 c17 | 6 8 9 |b47 5 13 | | 38 18 9 | 4 7 5 | 6 2 13 | *--------------------------------------------------*

Both potential DPs were very nice

I settled for a long chain as something different.

(8=4)r7c8-(4=7)r8c7-r8c3=(7-8)r6c3=8r6c7 => r5c8<>8

Ted

by **tlanglet** » Sun Jul 21, 2013 1:52 pm

Another perspective of the BUG-Lite+1 is as an ANS(67)

Code: Select all: *--------------------------------------------------* | 2 18 18 | 7 9 6 | 34 34 5 | | 5 9 6 | 2 3 4 | 78 1 78 | | 47 47 3 | 1 5 8 | 2 9 6 | |----------------+----------------+----------------| | 9 3 4 | 8 6 1 | 5 7 2 | |*8=67*67 2 | 5 4 a37 | 1 b38 9 | | 1 5 f7-8 | 9 2 37 | 38 6 4 | |----------------+----------------+----------------| | 467 467 5 | 3 1 2 | 9 c48 78 | | 347 2 e17 | 6 8 9 |d47 5 13 | | 38 18 9 | 4 7 5 | 6 2 13 | *--------------------------------------------------*

(8=67)r5c12-(7=3)r5c6-(3=8)r5c8-(8=4)r7c8-(4=7)r8c7-r8c3=7r6c3 => r6c3<>8

Ted

Vanhegan Fiendish July 20, 2013