Hi Olga, these are good questions, I hope I can do them justice. I
so understand your fervour for Sudoku, although I am at the other end of the slippery slope actually Im trying to cut down, or even better, give up, because - and you may not know this yet - Sudoku is an addictive product and once it gets hold of you it can take over your life. Really it should have a health warning like cigarettes. Im hanging out for a patch like Nicotinell that I can stick on and ease myself off painlessly!
In the meantime I play on paper and computer. I ring the changes with speed solving, non-candidate marking and killers. My highest score is 3 days for a particularly wicked little killer but I cant speak for anyone else as I can never remember what they say their best scores are.
How does the competition look like? Hmm, this is a good question and one that preys on my mind too Ive seen one photo of Wayne but hes not really the competition, the rest I have to leave to the imagination! Lastly, a good guide book well the two recommended above are excellent and theres also Pappocom of course and lots of people in this forum who will guide you anywhere you want to go in the Sudoku wonderland. Have fun!