by **PaulIQ164** » Mon Aug 01, 2005 5:10 pm

I'll have a crack at solving it in your order, then.

But first, let me try to figure this out. You say you found a valid solution to grid B, but that it didn't let you solve the central grid. You then changed your grid B to another valid solution (by swapping the 5 and 9, I think you said). Well then you didn't solve grid B at all did you? There might very well be multiple solutions to grid B if you try and finish it before you can, because you haven't done the central grid. It's not that I stumbled upon the right order, the way it would seem is that I simply did it in the right (indeed, the only logical) order, and you did it wrong.

Edit: to clarify, because I realise that that last paragraph was a tad garbled: When you were solving grid B, if you found one of two pissible solutions, you must have made a guess somewhere along the way (there's no way to arrive at one of several solutions without guessing at some point). That means you're effectively doing trial and error. However, if you do trial and error on a Samurai, you have to do it over the whole five grids. So when you found the central grid to be unsolvable, that was the error, so your guess way back in grid B was wrong. Incidentally, the puzzle could be solved without recourse to trial and error.

I apologise profusely if I've misunderstood what you said.