SUDOKU BENCHMARK ยท COZY

Qwen3.8 Flash-Next on Cozy grid 2

Solved: 48 of 48 blank cells right. It said it was 100% sure. All of Qwen3.8 Flash-Next's answers.

RESULTSolved
CELLS RIGHT48 / 48
SAID100% sure
MODEL TIME11.1 min
COSTlocal, no list price
TOKENS IN / OUT369 / 14,860

5 given 5 filled correctly 53 wrong, with the right digit 3 left empty

The end of its reply

Looking at this puzzle, I'll work through it systematically.

**Key deductions:**
- r2c3=5 (box/row/col constraints), r1c3=3, r1c2=4 (box 1 forced)
- r8c1=4 (only option in box 7), r8c4=7, r8c7=1, r8c6=9 (row 8 cascade)
- r9c7=2, r9c5=4, r9c8=9 (box 9 and row 9 constraints)
- r7c1=5, r7c7=7, r7c9=4, r7c8=3, r7c2=8 (boxes 7/9 forced)
- r1c5=6 (box 2 logic eliminates 2), r1c8=2, r1c9=9
- r2c9=7 (box 3 last cell), r2c4=8, r2c6=2 (col/box constraints)
- r7c6=1, r7c5=2, r4c6=8, r5c6=6 (col 6 cascade)
- r6c7=8, r6c4=2 (box 6/col 4 forced)
- r3c5=9, r3c8=8, r3c4=5 (col 5 and box constraints)
- Remaining cells resolved by elimination in rows/columns/boxes

<grid>
843167529
695832417
271594683
726918345
318456972
954273861
589621734
432789156
167345298
</grid>
<confidence>100</confidence>

Grid cozy-1 of set v1, 33 givens. Puzzle as one line: 8..1.75..69..3.41..7...46.37..9..3....8.5.9....4..3..1..96......32.8..561..3.5..8