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Tough Sudoku for 24/October/2011

                 
                 
                 
                 
                 
                 
                 
                 
                 

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Sudoku Solving Techniques

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Courtney - you sweetie pie!
24/Oct/11 12:55 AM
8.9** (SE @ 4dK, 3K, 10FC)
003900000900004780000300102104760000000000001080000500020090030000000040036007008
24/Oct/11 2:04 AM
8.4*** (SE @ 9K x 17FC)
100000300082090000703000081010000702300007900060010000000009000000140008008002050
24/Oct/11 2:52 AM
She is a cutie!!!!
24/Oct/11 4:04 AM
8.5**** (SE @ 16K x 14FC)
000000000405002080070900024900260050080001400006008109001009008007000300800070000
24/Oct/11 4:26 AM
8.4 ***
0) SSTS
//QALS xz rcUR(45)bc59 => (45)c56=b9a8 => c9<>45; SSTS
// ?Wing(49)a8b9,i1,ai1 => a1<>4
1) (2)d4 = (25)a4b5 - (5=249)bhi9 => d9<>2
2) (7)e9 = d9 - (7=69)da1 - (9=25)a4b5 - (5=249)bhi9 => e9<>2, STE
24/Oct/11 4:26 AM
8.4***
1. aur(45)bc59::(6)c9=*(2)b5-(2=9)a4-(459=6)c579 # +6c9
2. { (5=4)b9-(4=367)bde1-(6)a1=YW(49.5)a18.c2-(5)a23=a9 } # -4b3, -367i1
3. (4=5)b9-WW(25)b5d9.ad4=(7)d9-(679=4)adi1 # -4i9, UP81
24/Oct/11 4:39 AM
8.4***
#1 (6)c9=c2 - (6=2)g2 - (2)g7=hs(29)hi9 ; hi9<>6
#2 (367=4)edb1 - (4=2569)a1234 - (56=9)c2 - a1=i1 ; i1<>367
// kite(4) i19,ga8 ; a1<>4
// xy-chain (29)h9,(94)i9,(45)b9,(52)b5,(29)a4,(92)d4 ; d9<>2
// xy-chain transport (29)h9,(94)i9,(49)i1,(96)a1,(67)d1,d9=e9 ; e9<>2
24/Oct/11 5:07 AM
8.5 ****
0) SSTS
// ALS xz rc(9) => (2)c9 = (562)g971 => c1<>2;
// HSR(13)aef7,e8 => a7<>6; d89e9<>13; LC(1)
//ALS xz+ ext(6)Bb8 rc(7) => (569)g789 = (6)MXW d8Bb8 => i89<>6; LC(6)
1) (6=7)d8 - df9 = (731)i968 - hi9 = (1-6)a9 = UR(69)bg89 = More...
24/Oct/11 6:47 AM
8.5****
// MR(13)e8/aef7; -6a7,-3def9.d8,-1e29.d89
// FXW(9), -9h9, FXW(7), -7gh9
// als-xz:(2=9)c9-(569=2)g179, -2c1
1. (6)g7=f7-(6=7)d8-(579=6)g789 # -6i89
2. (8)d9=(8-1)d2=d1-(1=347)h134-(3=457)d45e4 # -7d9, SS(3), -3f7
3. aur(69)bg89::(6)g7=*(3)b9-(134=7)h139-(257=6)g137 # +6g7
4. (3=1)i8-i2=(1-8)d2=(48)e29-(4=357)d5e4f6 # -3i6, UP81
24/Oct/11 9:12 AM
1. (Site puzzle) Unique possibilities to 33.
2. Whether e4=8;OR e4=5=f1,a1=8=c7;e7=19 and i9=15.
3. If i9=1=a8,de9=89,g9=2,f9=7,f8=3;then i8=5(whether g5=3,i6=8;OR g5=9,g8=8).So 5 is locked at i89.UP39.
4. Whether h9=6,h8=7;OR h7=6,f7=2,f9=7;f8=3.UP43.
5. As before,i8=5 whether g5=39.UP81.
24/Oct/11 12:55 PM
8.9**
0) SSTS
// AHS x ALS rc 2 => (2)f9 = (138)de4f6 => f9<>8
1) {(1=6)b8 - (6=792)b5c45 - [(2)c8 = a1 - (2=1)f8} - (1=5836)f2367 - (5)f5 = DP(245)de158 = (25)c8] => b9c8<>1; SSTSTE
24/Oct/11 1:02 PM
8.9** w/o aaic or dp:
//aur(38), -38f5
1. { (2)a9=(236')a457-(6)f7=(6-3)f2=e2-(3=12)de4-(2)f45-f9 }
# -2a4.e9,-7a45,-158f2,-23e5,-2d5,-1f4
// WR(36)a4f2, -3f4,-6a5
2. (78')e79=(8)f79-(8=123)de4f6-(2)f45=f9-(2=156)bde8-(5=368)f267
# -8f39,-5e7
// MW(21)c8/af9.f3, -1c3
// WW(12)de4ef9, -2f45
24/Oct/11 3:08 PM
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