SudoCue Users

I just thought I'd take a crack at the hevvie myself, and found it isn't as hard as it was cracked up to be. Hmm - we're still struggling with it 3. combinations for 15 in n8 = {59|68} -> no 1..4|7; forms killer pair {56} with 9/2 in n8 -> elim from rest of n8 Why can't 15(2) in n8 be {78}? - {59}=...

I just thought I'd take a crack at the hevvie myself, and found it isn't as hard as it was cracked up to be. I got stuck at the *very end*, thinking there were two solutions -- I honestly had 70 of 81 digits placed, and the rest were all pairs, and I thought there might be a dual solution, but sumoc...

Here's my solution for V1 -- all fairly standard killer stuff until step 49, which involves Medusa Coloring of a sort, with a bit of a twist at the end. It might be easier to write it as a double implication chain in Eureka notation, but I didn't. I am, as always, quite prone to errors and quite slo...

Here's a walkthrough for version 1. I used a couple fancy techniques, but not many. I'll tackle 1.5 in a bit. Note: This walkthrough should work without any preliminary steps. Note 2: Numbers between {} are unordered; numbers between [] are left to right first, then top to bottom. i.e. theoretically...

I just found a book titled Mensa Extremely Nasty Sudoku Level 4 . It looks like a pretty good series, although I haven't had time to attempt the puzzles within. From the introduction: "Below is a sample puzzle on the left, and its solution on the right. (exactly what it says) If you are actuall...

I have, in fact, found one puzzle in my collection (not a killer, IIRC) that I finally gave up on and asked a computer to solve, only to find out it had 27 solutions. I presume it was a typo by the company that published my sudoku-a-day calendar (mostly killers.)

Here's my walkthrough. Move 14 is somewhere between conflicting combinations and trial-and-error; I'm not sure if it's kosher. Aside from that I didn't think this was that hard. The entire thing's about 50-60 steps, maybe more depending on how you count them. I'd say well under 100 though. 0a. 4/2 i...

My main strategy involved conflicting combinations between size-3 hidden cages in the central nonet for most of the grunge work.

54. combinations for 19/3 in r34 -> no 6 in r34c1 55. combinations for h22/3 in r3c258 -> no 6 in r3c25 56. r4c2 = hidden single 6 57. outies of c1 = r6c2 = 1 58. 19/3 in c12 = {568} -> 58 pair in c1, elim from rest of c1 59. 9/2 in n1 = {27|36} 60. r4c3 = hidden single 4 61. 10/3 in c12 = [316|712]...

Here's a couple more moves; didn't repost the graph since it's only a couple of eliminations.

5/6 in N1: Either R12C1 = {56} or R3C12 = {56}; thus there is either a 5 or 6 in R123C1; thus 11/2 in N7 != [56]
Outies of R9: R8C9 != 1; must contain 2 -> no 2 in 16/3 or 20/3 in R8

BTW - Really like those Medusa moves. They sound the same as what Richard called "xy-chains" for the Ruud-being-even-meaner-than-usual X-R-size puzzles from the X-Files. Not really... Well, sort of. xy-chains are a simplified version of medusa moves. Medusa moves are basically simple colo...

Love the ! PsyMar. Is it a Maths term? ! meaning "not" is actually from C++ programming -- ! means not, and != means not equal. Edit to avoid double post: This is as far as I could get on v2. Lots of pairs, but no digits placed. Used a few medusa moves. You may notice I have two step 27's...

After solving assassin 41, I tried to copy marks for my post, which worked, but then decided I really wanted sums+marks, but got an unhandled exception. Trying to replicate it, I find that it doesn't happen if I just choose "solve" from the menu to solve it, but if I let it step through mo...

Woo! Rather proud of myself for finishing this one. Walkthrough follows. 0a. 5/2 in N8 = {14|23} 0b. 7/2 in N9 != 789 0c. 11/2 in N1 != 1 0d. 11/2 in N7 != 1 0e. 14/2 in N3 = {59|68} 0f. 6/3 in R1 = {123} triple -> elim 123 from rest of R1 0g. 6/3 in R2 = {123} triple -> elim 123 from rest of R2 0h....

I just finished this one -- couldn't do it in one sitting but finished it in the next (which is a rarity, usually if I can't finish it at once I give up altogether). I'm going to post my walkthrough as it's rather different -- it may be somewhat circuitous, I'm sure it isn't minimal, but it's the wa...