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Tough Sudoku for 25/August/2016


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

  1 2 3 4 5 6 7 8 9
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Sudoku Solving Techniques

Submitted by: sudoku lover

Indicate which comments you would like to be able to see

1. Unique possibilities to 34.
Making use of the 16 Unresolvable Rectangle @ hi25:
2. g89<>1 or else 16 UR @ hi25.UP35.
3. Whether g9=7;OR g9=2=d8;c8=7.UP81.
25/Aug/16 12:42 AM
Without the UR:
2. Whether d8=2;OR d9=2,ghi9=179,b8=1;c8=7.UP81.
25/Aug/16 12:48 AM
Still simpler:
2. Whether g8=4,b8=1;OR h7=4,b7=2;c8=7.UP81.
25/Aug/16 12:53 AM
Beautiful scene, Kate. Love those clouds, too.
25/Aug/16 3:36 AM
#29 37@f78=>f9<>7&d8<>3 #34 36@ab1=>ab1<>8
#35 2?@c8=>d8=6=>a8=4=>b7={}=>c8<>2
VHBC to #81
V:Only cell left in Vertical column for this candidate
H:Only cell left in Horizontal row for this More...
25/Aug/16 6:58 AM
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