Qwen3.5 9B on Steady grid 1

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

The end of its reply

k at the string segments again carefully.

Segment 1: `..3..8.97` (9 chars) -> Row 0
Segment 2: `.........` (9 chars)? The string provided is `..3..8.97` followed by spaces/newlines in the visual, but the single line string is dense.
Let's count characters in the provided single-line string:
`..3..8.97` (9)
`... ... ...` -> If I remove spaces: `.........` (9).
So Row 1 is completely empty? That seems unlikely for a puzzle with "28 givens".
Let's re-read the visual block again.
R0: `..3 ..8 .97` -> `..3..8.97`
R1: `... ... ...` -> `.........` (Empty)
R2: `9.. .3. .18` -> `9.. .3. .18`? Or `9...3..18`?
Visual: `9.. .3. .18`
Chars: `9`, `.`, `.`, `.`, `3`, `.`, `.`, `1`, `8`.
String segment 3: `9...3..18` (9 chars). Matches visual if spaces are ignored.

R3: `..1 4.. 93.` -> Visual: `..1`, space, `4..`, space, `93.`.
Chars: `.`, `.`, `1`, `4`, `.`, `.`, `9`, `3`, `.`.
String segment 4: `..14..93.` (9 chars).

R4: `45. ... .76` -> Visual: `45.`, space, `...`, space, `.76`.
Chars: `4`, `5`, `.`, `.`, `.`, `.`, `.`, `7`, `6`.
String segment 5: `45.....76` (9 chars).

R5: `.87 ..9 2..` -> Visual: `.87`, space, `..9`, space, `2..`.
Chars: `.`, `8`, `7`, `.`, `.`, `9`, `2`, `.`, `.`.
String segment 6: `.87..92..` (9 chars).

R6: `59. .4. ..2` -> Visual: `59.`, space, `.4.`, space, `..2`.
Chars: `5`, `9`, `.`, `.`, `4`, `.`, `.`, `.`. Wait, visual has 3 parts.
Visual R6: `59. .4. ..2` -> `59.`, space, `.4.`, space, `..2`.
Combined: `59..4...2`.
String segment 7: `59..4...2`? The string provided in prompt says `59..4...2`.
Let's check the prompt string again: `59..4...2`. Yes.

R7: `... ... ...` -> Empty.
String segment 8: `.........`.

R8: `73. 6.. 4..` -> Visual: `73.`, space, `6..`, space, `4..`.
Combined: `73.6..4..`.
String segment 9: `73.6..4..`.

Okay, let's verify the "givens" count based on this parsing.
R0: 3,8,9,7 (4)
R1: None (0) -> This is weird. Usually puzzles don't leave a whole row empty unless it's a specific type or I'm misreading the spaces.
Let's re-read the visual block R1.
`... ... ...`
It really looks like three groups of 3 dots. So yes, Row 1 is empty in the input grid?
"28 givens".
R0: 4
R2: 9,3,1,8 (4) -> Total 8.
R3: 1,4,9,3 (4) -> Total 12.
R4: 4,5,7,6 (4) -> Total 16.
R5: 8,7,9,2 (4) -> Total 20.
R6: 5,9,4,2 (4) -> Total 24.
R7: None (0) -> Total 24.
R8: 7,3,6,4 (4) -> Total 28.
Total givens = 28.
This matches the prompt description "28 givens".
So Rows 1 and 7 are indeed empty in the initial state.

Let's solve this Sudoku.

Grid State:
Row 0: . . 3 | . . 8 | . 9 7
Row 1: . . . | . . . | . . .
Row 2: 9 . . | . 3 . | . 1 8
Row 3: . . 1 | 4 . . | 9 3 .
Row 4: 4 5 . | . . . | . 7 6
Row 5: . 8 7 | . . 9 | 2 . .
Row 6: 5 9 . | . 4 . | . . 2
Row 7: . . . | . . . | . . .
Row 8: 7 3 . | 6 . . | 4 . .

Let's deduce step-by-step.

**Box 1 (Top-Left): Rows 0-2, Cols 0-2**
Cells:
(0,0) (0,1) are empty. (0,2)=3.
(1,0)..(1,2) empty.
(2,0)=9, (2,1), (2,2) empty.
Cols 0-2 constraints:
Col 0 has {9, 4, 5, 7}. Missing {1, 2, 3, 6, 8}.
Col 1 has

Grid steady-0 of set v1, 28 givens. Puzzle as one line: ..3..8.97.........9...3..18..14..93.45.....76.87..92..59..4...2.........73.6..4..