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Puzzle#251

Countdown

Released: 2026-07-05

8
Models Tested
3
Solved
8
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

617Target
100
75
2
9
2
10

(100 + 75 + 9) * 2 + 2

= 370

Failed

deepseek/deepseek-chat-v3-0324

deepseek

617Target
100
75
2
9
2
10

(100 * (10 - 2)) + (75 - (9 * 2))

= 857

Failed
MoonshotAI

moonshotai/kimi-k2.5

moonshot

617Target
100
75
2
9
2
10

9*75 - 100/2 - 10 + 2

= 617

Perfect Solution!
Minimax

minimax/minimax-m2.5

minimax

617Target
100
75
2
9
2
10

100 * (9 - 2) - 75 - 10 + 2

= 617

Perfect Solution!

mistralai/mistral-medium-3

mistral

617Target
100
75
2
9
2
10

((100 + 75) * (10 - (9 - 2))) + 2

= 527

Failed
Z.ai

z-ai/glm-5

z-ai

617Target
100
75
2
9
2
10

75 * 9 - (100 / 2 + 10 - 2)

= 617

Perfect Solution!

google/gemini-3-flash-preview

google

617Target
100
75
2
9
2
10

((75 - 10) * 9) + 100 / (2 + 2)

= 610

Failed

anthropic/claude-sonnet-4.6

anthropic

617Target
100
75
2
9
2
10

((100 + 9) * 2 - 75) * (10 - 2)

= 1144

Failed

Methodology Note

Each model receives the same prompt with the numbers to use. Models are tasked with creating an expression using only arithmetic operations to reach the target number. Each number can only be used once and you do not have to use all the numbers. Their answers are evaluated without feedback or retries.

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