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Puzzle#257

Countdown

Released: 2026-07-11


8
Models Tested
4
Solved
8
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

268Target
50
25
100
3
7
9

(3 + 9) * 25 - 7

= 293

Failed

google/gemini-3-flash-preview

google

268Target
50
25
100
3
7
9

(3 * 100) - 25 - 7

= 268

Perfect Solution!

deepseek/deepseek-chat-v3-0324

deepseek

268Target
50
25
100
3
7
9

(100 - (9 - 7)) * 3 + 50

= 344

Failed

anthropic/claude-sonnet-4.6

anthropic

268Target
50
25
100
3
7
9

50 * (3 + 7) - 100 / (25 - 9)

= 493

Failed

Minimax

minimax/minimax-m2.5

minimax

268Target
50
25
100
3
7
9

100 * 3 - 50 + 25 - 7

= 268

Perfect Solution!

MoonshotAI

moonshotai/kimi-k2.5

moonshot

268Target
50
25
100
3
7
9

25 * 9 + 50 - 7

= 268

Perfect Solution!

mistralai/mistral-medium-3

mistral

268Target
50
25
100
3
7
9

((100 + 50) * (9 - 3)) + (25 + 7)

= 932

Failed

Z.ai

z-ai/glm-5

z-ai

268Target
50
25
100
3
7
9

25 * 9 + 50 - 7

= 268

Perfect Solution!

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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