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Puzzle#251

Sudoku

Released: 2026-02-26


8
Models Tested
0
Solved
7
LLM Providers

anthropic/claude-3.7-sonnet

anthropic

Difficulty:
hard

6

9

8

5

1

4

7

3

2

7

5

4

3

8

6

9

2

1

4

1

3

2

9

7

8

5

6

9

4

1

8

7

3

5

6

4

8

7

5

6

2

1

4

9

3

6

3

7

4

5

9

2

1

8

3

2

6

1

8

7

9

4

5

5

6

9

7

4

2

3

8

1

1

8

2

9

3

5

6

7

4


deepseek/deepseek-chat-v3-0324

deepseek

Difficulty:
hard

7

9

6

5

1

8

4

3

2

8

5

2

4

3

6

7

2

1

4

1

3

7

2

9

8

6

5

2

4

1

6

7

3

5

9

8

9

7

8

2

5

4

6

1

3

6

3

5

8

9

1

2

4

7

1

2

4

3

6

7

9

5

8

5

6

7

9

4

2

3

8

1

3

8

9

1

5

6

7

2

4


google/gemini-3-flash-preview

google

Difficulty:
hard

1

9

2

5

8

4

6

3

7

8

5

7

3

9

6

4

2

1

4

7

3

2

1

0

8

9

5

9

2

1

4

7

3

5

6

8

7

4

5

6

2

8

1

0

9

6

3

8

1

5

9

2

7

4

3

1

4

8

6

7

9

5

2

5

6

9

7

4

2

3

8

1

2

8

6

9

3

5

7

4

1


google/gemini-2.0-flash-001

google

Difficulty:
hard

8

9

2

5

1

4

6

3

7

6

5

4

7

9

6

8

2

1

4

1

3

2

8

5

7

9

6

9

2

1

4

7

3

5

6

8

7

4

6

8

5

2

1

7

3

5

3

8

1

6

9

2

4

9

2

9

5

3

8

7

9

1

4

5

6

7

9

4

2

3

8

5

3

8

9

6

2

1

4

5

2


openai/gpt-4o

openai

Difficulty:
hard

1

9

2

5

6

8

4

3

7

8

7

5

4

3

6

9

2

1

4

6

3

7

2

1

8

5

9

6

2

1

9

7

3

5

4

8

7

5

9

8

1

4

6

1

3

9

3

8

6

5

9

2

7

4

3

1

4

2

8

7

9

6

5

5

6

7

1

4

2

3

8

9

2

8

6

3

9

5

7

1

2


mistralai/mistral-medium-3

mistral

Difficulty:
hard

8

9

6

5

2

4

7

3

1

7

3

5

9

8

6

4

2

1

4

2

3

7

1

8

6

9

5

9

4

1

2

7

3

5

6

8

6

5

2

1

9

8

3

4

7

1

3

7

6

5

9

2

8

4

2

1

4

3

6

7

9

5

8

5

6

9

8

4

2

3

7

1

3

8

7

4

5

1

6

2

9


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

meta

Difficulty:
hard

5

9

4

5

8

2

1

3

6

2

1

8

4

6

3

5

7

9

4

7

3

9

5

1

2

6

8

9

5

1

2

7

4

8

6

3

8

6

5

1

3

9

4

2

7

3

4

2

8

1

6

7

5

9

1

8

9

6

4

7

3

5

2

5

3

6

7

2

8

9

1

4

7

2

7

3

9

5

6

8

1


x-ai/grok-3-mini-beta

x-ai

Difficulty:
hard

2

9

6

5

1

4

8

3

7

7

4

5

8

3

6

1

2

9

4

1

3

9

2

7

5

6

8

9

2

1

4

7

3

6

8

5

8

5

7

6

9

1

2

4

3

6

3

8

2

5

9

4

7

1

1

6

2

3

4

8

7

5

9

5

6

4

1

9

2

3

8

7

3

8

9

7

6

5

4

1

2


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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