Timer
00:00:00
Start Pause Reset
9 Comments Previous / NextHelp

Tough Sudoku for 1/July/2014

                 
                 
                 
                 
                 
                 
                 
                 
                 

Choose a number, and place it in the grid above.

  1 2 3 4 5 6 7 8 9
Check out the latest post in the Sudoku Forum

Sudoku Solving Techniques

Submitted by: sudoku lover

Indicate which comments you would like to be able to see

everybody!

01/Jul/14 12:29 AM
Well made statue. If it's in the Louvre it better be.
01/Jul/14 3:08 AM
#1. Swordfish(9) : XWing[ac4=a5-i5=*i4]=*i9-hg8=*ER[e8=*a8-a54=c4] :=> -9e4=9e789-9d79

#2. deh9=124679 :=> [7b8==7g6]-(7=3)b6; UP50

[(72=6)d9f8-(6=247)deh9]-7e8=7b8
||
1de9-(1=84)df7-4f5=4hi5-(4=97)i4g6
||
9eh9-9i9=9i45- (9=7)g6

#3. XYWing(34-6)a17b9-6a8b1; UP81
01/Jul/14 4:01 AM
site puzzle SG's path shown here; SG =3.75, SE=7.8:

// HW(49)i4/gd6.(3)e4; -4e4
// xy loop: { (3)d6=(3-7)d2=d9-e8=b8-(7=3)b6 } # +(37)d2, -7b59.e9
// FSF(9)cdi.479/d56; -9e4

1. [(3)b6==(7-9)e8=*gh8-i9=i4-(9=7)g6-(7=3)b6]
||
(9)a8-ac7=(9-4)e7=a7-a2=b2 # -3b2; ste.
More...
01/Jul/14 4:53 AM
X-79 (unsolved)

// xy: (7)i9=(7-1)g8=(1-5)b8=(5-4)b9=d9-d4=e5* - (7)e5=f5 # -7df9
// ext. * - (4)a5=(4-2)a4=b4 # -2b89

1. DK: (1)c1357=c2 - (129=35)abi2 # -3e7
[(4)a5=(4-2)a4=b4-b7=(2-1)c7=*SF(1)cfh.135-(1=4)a5] - (4)e5=e7
||
[(3)e1=b1-b2=*(5)i2-i5=(75'-4)ef5=e7]
// More...
01/Jul/14 4:57 AM
X-81: Symmetry=AntiDiagonal, Start=26, SSTS=32, SG=10.5, SE=8.9
071008005800000700600790002006000500004000826700000000030120000000040003502060010
01/Jul/14 7:41 AM
(29) 4?@f7=>e4=4=>d6=3=>b6=7=>g6=9=>i4={}=>f7<>4
(30) 47@f45=>d5<>7&e4<>47
1?@h5=>i5=5=>f5=4=>b5=7=>{c9=7&b6=3=>d6= 9=>[d7=1&d5=8=>d3=2]}=>d9={}=>h5<>1
(31) More...
01/Jul/14 8:38 AM
I'm surprised a photo was permitted. Or was it sneaked?
01/Jul/14 4:47 PM
X-81,SE=8,9
1)(5):b5=df5-e4=e8=>b8<>5
2)(15=4)e8f7-(4=5)b7-b5=df5-e4=(5)e8,=>df8 <>5
3)(2)a9=a6-(2=26)f648-(1=15)fe8f7-(4)f7=(4)b7,=>a9<>4
4)Kraken:(149)i8,=>f8& LT;>1
(1)i8
||
(4)i8-b8=b7-(4=51)f7e8
||
(9)i8-bc8=(9-2)a9=a6-(2=26)f648
5)(1):e8=i8-g7=g4, =>e4<>1
6)(8=5)e4-d54=(5-8)d2=(8)c2,=>c4<>8.UP=81
02/Jul/14 3:49 PM
Please Log in to post a comment.

Not a member? Joining is quick and free. As a member you get heaps of benefits.

Join Now Login