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SteveDallas · 03-24-2006, 10:43 AM

A - I would be OK. Dingbats or colors would slow it down considerably, for me at least. The difference is when I look at a group (either a row, a column, or a 3x3 sub-square), how long does it take to determine which of the nine numerals is missing? Not long at all ("OK, I still need 3, 4, 5, and 8 in that column"). Probably the same with letters. But with colors or symbols, I expect I would never get the "missing" ones as fast as I get the numbers. Of course that wouldn't make the deductive process of solving it harder, it would just take longer to go through everything. The Sudoku game I have on my phone has a timer and I usually finish in 5 to 15 minutes depending on how hard they are.

03-24-2006, 10:43 AM	#17
SteveDallas Your Bartender Join Date: Jan 2002 Location: Philly Burbs, PA Posts: 7,651	A - I would be OK. Dingbats or colors would slow it down considerably, for me at least. The difference is when I look at a group (either a row, a column, or a 3x3 sub-square), how long does it take to determine which of the nine numerals is missing? Not long at all ("OK, I still need 3, 4, 5, and 8 in that column"). Probably the same with letters. But with colors or symbols, I expect I would never get the "missing" ones as fast as I get the numbers. Of course that wouldn't make the deductive process of solving it harder, it would just take longer to go through everything. The Sudoku game I have on my phone has a timer and I usually finish in 5 to 15 minutes depending on how hard they are.