The New Sudoku Players' Forum

by **ArkieTech** » Tue Nov 17, 2015 12:07 am

Code: Select all: *-----------* |...|...|5..| |271|...|.3.| |.6.|.87|.2.| |---+---+---| |..7|.4.|...| |.54|7.8|31.| |...|.1.|8..| |---+---+---| |.1.|23.|.8.| |.4.|...|752| |..5|...|...| *-----------*

by **SteveG48** » Tue Nov 17, 2015 12:42 am

Code: Select all: *-----------------------------------------------------------* | 4 9-3 8 | 13 69 2 | 5 7 169 | | 2 7 1 | 469 5 469 | 69 3 8 | | 5 6 a39 | 13 8 7 | 49 2 149 | *-------------------+-------------------+-------------------| | 1 8 7 |f69 4 3 | 2 e69 5 | | 69 5 4 | 7 2 8 | 3 1 69 | | 369 h39 2 | 5 1 g69 | 8 4 7 | *-------------------+-------------------+-------------------| | 7 1 b69 | 2 3 5 |c469 8 c469 | | 389 4 369 | 689 69 1 | 7 5 2 | | 89 2 5 | 4689 7 469 | 1 d69 3 | *-----------------------------------------------------------*

(3=9)r3c3 - r7c3 = r7c79 - r9c8 = r4c8 - r4c4 = r6c6 - (9=3)r6c2 => -3 r1c2 ; stte

by **Leren** » Tue Nov 17, 2015 1:59 am

Code: Select all: *--------------------------------------------------------------* | 4 39 8 | 13 69 2 | 5 7 169 | | 2 7 1 | 469 5 469 | 69 3 8 | | 5 6 39 | 13 8 7 | 49 2 149 | |--------------------+--------------------+--------------------| | 1 8 7 |P69 4 3 | 2 Q69 5 | |Q69 5 4 | 7 2 8 | 3 1 P69 | | 369 39 2 | 5 1 Q69 | 8 4 7 | |--------------------+--------------------+--------------------| | 7 1 69 | 2 3 5 | 469 8 469 | | 38-9 4 369 | 689 69 1 | 7 5 2 | | 8-9 2 5 | 4689 7 4-69 | 1 P69 3 | *--------------------------------------------------------------*

Remote Pairs {69} Cells r4c4 r5c9 r9c8 + ve parity (P) / r4c8 r5c1 r6c6 - ve parity (Q) => - 9 r89c1, -69 r9c6; stte

Leren

by **JC Van Hay** » Tue Nov 17, 2015 2:02 am

Code: Select all: +--------------+-----------------+------------------+ | 4 39 8 | 13 69 2 | 5 7 169 | | 2 7 1 | 469 5 49(6) | 9(6) 3 8 | | 5 6 39 | 13 8 7 | 49 2 149 | +--------------+-----------------+------------------+ | 1 8 7 | 9(6) 4 3 | 2 9(6) 5 | | 69 5 4 | 7 2 8 | 3 1 69 | | 369 39 2 | 5 1 9(6) | 8 4 7 | +--------------+-----------------+------------------+ | 7 1 69 | 2 3 5 | 49(6) 8 469 | | 389 4 369 | 689 69 1 | 7 5 2 | | 89 2 5 | 4689 7 49(6) | 1 9-6 3 | +--------------+-----------------+------------------+

Only 1 solution for the digit 6 !
Swordfish(6R4C67) : (6)[r4c8=r4c4-r6c6=*Skyscraper[r9c6=*r2c6-r2c7=r7c6]]-6r9c8; stte

by **Marty R.** » Tue Nov 17, 2015 2:21 am

Code: Select all: +------------+-------------+------------+ | 4 39 8 | 13 69 2 | 5 7 169 | | 2 7 1 | 469 5 469 | 69 3 8 | | 5 6 39 | 13 8 7 | 49 2 149 | +------------+-------------+------------+ | 1 8 7 | 69 4 3 | 2 69 5 | | 69 5 4 | 7 2 8 | 3 1 69 | | 369 39 2 | 5 1 69 | 8 4 7 | +------------+-------------+------------+ | 7 1 69 | 2 3 5 | 469 8 469 | | 389 4 369 | 689 69 1 | 7 5 2 | | 89 2 5 | 4689 7 469 | 1 69 3 | +------------+-------------+------------+

Play this puzzle online at the Daily Sudoku site

DP (49)r37c79, mixed internal and external

9r9c8=1r3c9-(1=39)r3c43-r1c2=r6c2-r6c6=9r4c4=> -9r4c8

by **bat999** » Tue Nov 17, 2015 11:25 pm

Code: Select all: .-----------------.-----------------.-----------------. | 4 h39 8 | 13 69 2 | 5 7 169 | | 2 7 1 | 469 5 469 | 69 3 8 | | 5 6 3-9 | 13 8 7 | 49 2 149 | :-----------------+-----------------+-----------------: | 1 8 7 | e69 4 3 | 2 d69 5 | | 69 5 4 | 7 2 8 | 3 1 69 | | 369 g39 2 | 5 1 f69 | 8 4 7 | :-----------------+-----------------+-----------------: | 7 1 a69 | 2 3 5 | b469 8 b469 | | 389 4 369 | 689 69 1 | 7 5 2 | | 89 2 5 | 4689 7 469 | 1 c69 3 | '-----------------'-----------------'-----------------'

(9=6)r7c3 - r7c79 = r9c8 - r4c8 = r4c4 - (6=9)r6c6 - r6c2 = (9)r1c2 => -9 r3c3; stte
8-)

November 17, 2015