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# Tough Sudoku for 25/October/2014

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Sudoku Solving Techniques

Submitted by: sudoku lover

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 SE=7.3 UP to 261)2-Chain Logic:(5)g1=(138)abg7=(1472)c3689 or (5)b1-c2=(5)c5 => b1<>8,c5<>1472 (or-rule) UP=81 25/Oct/14 12:41 AM Fuzzy! I bet it does look like snow! 25/Oct/14 1:03 AM UP26; [8c2=8c89-(8=125)abg7-5h9=5h2]-5c2=5c5; UP81 25/Oct/14 1:13 AM Typo ...UP26; [8c2=8c89-(8=135)abg7-5h9=5h2]-5c2=5c5; UP81 25/Oct/14 1:31 AM Like the others:1. Unique possibilities to 26.2. Whether b7=8=c2;OR b7=3,ag7=15,h2=5;c5=5.UP81. 25/Oct/14 2:27 AM Imagine... this lovely flower is actually on a tree - an entire tree in blossom must be quite spectacular! Its name (flaxleaf paperbark) should have given me a clue, but it didn't! 25/Oct/14 10:31 AM Lovely shot Kate! One of my favourite melaleucas! 25/Oct/14 1:00 PM (27) 8?@b1=>[g1=5&b7=3=>a7=1]=>g7={}=>b1<>89?@e2=>[a3=9=>c3=7&b8=9=> c8=7]=>e2<>9(29) 5?@c2=>[g1=5&b2=8=>b7=3=>a7=1]=>c2<>5VHBC to (81)V:Only cell left in Vertical column for this More... 25/Oct/14 3:33 PM Hi Les, to solve this one, it is enough to just test for 5@c2. After c2=5,c89=8,b7=3, a7=1,g7=5; and Box H2 is devoid of 5. So c5=5.UP81. Best Regards, Alfred. 25/Oct/14 7:33 PM Thanks again Alfred.Too many visitors.Cheers Les. 26/Oct/14 7:43 AM (27) 8?@b1=>[g1=5&b7=3=>a7=1]=>g7={}=>b1<>85?@c2=>[g1=5&b2=8=>b7=3=> a7=1]=>g7={}=>c2<>5VHBC to (81)V:Only cell left in Vertical column for this candidateH:Only cell left in Horizontal row for this More... 28/Oct/14 7:00 AM Alfred I am not sure what Box H2 means. 28/Oct/14 7:02 AM