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Puzzle#356

Sudoku

Released: 2026-04-02


8
Models Tested
0
Solved
7
LLM Providers

openai/gpt-4o

openai

Difficulty:
hard

3

8

7

9

4

6

2

1

5

9

6

2

1

5

3

4

7

8

1

4

5

6

7

2

9

3

0

8

5

9

7

3

1

0

4

6

7

2

6

4

8

9

3

5

1

4

1

3

5

2

8

6

9

7

5

7

1

3

9

7

8

2

4

6

9

4

8

1

5

7

0

3

2

3

8

5

6

4

7

0

9


meta-llama/llama-3.3-70b-instruct

meta

Difficulty:
hard

3

8

7

2

4

5

1

9

6

6

5

2

9

8

3

4

7

1

1

4

9

6

7

2

8

5

3

8

5

3

1

9

6

7

2

4

4

2

1

4

5

8

3

6

9

9

7

6

5

3

1

2

8

4

5

1

4

7

2

9

6

3

8

2

9

8

4

1

7

5

6

3

7

3

5

8

6

4

9

1

2


anthropic/claude-3.7-sonnet

anthropic

Difficulty:
hard

3

1

7

9

4

8

5

6

2

5

6

2

1

7

3

9

4

8

9

4

8

6

5

2

1

7

3

8

5

9

7

2

1

3

4

6

6

2

4

4

8

5

9

3

1

7

8

3

2

1

6

4

9

5

4

3

1

6

9

7

8

2

5

1

9

6

8

3

4

2

5

7

2

7

5

5

6

9

7

1

4


google/gemini-2.0-flash-001

google

Difficulty:
hard

3

1

7

9

4

5

6

8

2

9

6

2

1

8

3

4

7

5

5

4

8

6

7

2

1

3

9

8

5

4

7

3

1

2

9

6

7

9

6

4

2

8

3

5

1

1

2

3

5

6

9

8

4

7

4

8

1

3

9

7

5

2

6

6

7

5

8

1

4

9

3

2

2

3

9

5

6

1

7

9

4


google/gemini-3-flash-preview

google

Difficulty:
hard

3

8

7

1

4

5

2

6

9

5

6

2

9

8

3

1

7

4

1

4

9

6

7

2

5

3

8

8

5

4

7

2

1

3

1

6

9

2

6

4

3

8

5

7

1

7

1

3

5

6

9

4

9

2

4

5

1

3

9

7

8

2

6

6

7

5

8

1

2

9

4

3

2

9

8

5

4

6

7

1

5


mistralai/mistral-medium-3

mistral

Difficulty:
hard

3

9

7

1

4

8

5

6

2

5

6

2

7

9

3

1

4

8

1

4

8

6

5

2

9

3

7

8

5

9

2

3

1

4

7

6

6

2

4

4

7

9

3

8

1

7

1

3

8

6

4

2

9

5

9

8

1

3

9

7

6

2

4

4

3

6

8

2

6

7

1

9

2

7

5

5

8

9

7

4

3


deepseek/deepseek-chat-v3-0324

deepseek

Difficulty:
hard

3

1

7

9

4

5

2

6

8

5

6

2

7

8

3

1

4

9

9

4

8

6

1

2

5

3

7

8

5

9

2

3

1

4

7

6

7

2

6

4

5

9

8

3

1

1

7

3

8

6

4

2

9

5

6

3

1

4

9

7

8

2

5

4

9

5

8

2

6

3

1

7

2

8

4

5

3

1

7

6

9


x-ai/grok-3-mini-beta

x-ai

Difficulty:
hard

3

1

7

9

4

6

5

8

2

9

6

2

1

8

3

4

7

5

5

4

8

6

7

2

1

3

9

8

5

9

7

3

1

2

4

6

7

2

6

4

5

8

3

9

1

1

3

4

2

6

9

8

5

7

6

8

1

3

9

7

5

2

4

4

9

5

8

2

6

7

1

3

2

7

3

5

1

4

9

6

8


Methodology Note

Each model receives the same Sudoku puzzle with a partially filled grid. Models are tasked with solving the puzzle by filling in all empty cells following Sudoku rules, and their solutions are evaluated without feedback or retries.

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