Claude Sonnet 5.5 on Steady grid 5
Solved: 53 of 53 blank cells right. It said it was 97% sure. All of Claude Sonnet 5.5's answers.
RESULTSolved
CELLS RIGHT53 / 53
SAID97% sure
MODEL TIME1.3 min
COST$0.122 (API-equivalent)
TOKENS IN / OUT913 / 11,851
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5 given 5 filled correctly 53 wrong, with the right digit 3 left empty
The end of its reply
I solved the puzzle by hand, using candidate elimination and placing forced cells step by step. I then checked the final grid: every row, column and 3x3 box contains 1–9 exactly once, and all the givens are unchanged. <grid> 963712845 521438697 784569231 652347918 498251376 317986524 246195783 175823469 839674152 </grid> <confidence>97</confidence>
Grid steady-4 of set v1, 28 givens. Puzzle as one line: .63..2..552.4...9.7.....2......479..4.......6..798......6.....3.7...3.698..6..15.