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Puzzle#261

Countdown

Released: 2026-07-15


8
Models Tested
3
Solved
8
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

927Target
25
100
75
50
10
10

((10 + 10) * 50) - 75 - 25 - 100

= 800

Failed

mistralai/mistral-medium-3

mistral

927Target
25
100
75
50
10
10

(100 - (25 / (10 / 10))) * (75 + 50)

= 9375

Failed

deepseek/deepseek-chat-v3-0324

deepseek

927Target
25
100
75
50
10
10

(100 + 10) * (75 - (50 - 25)) + 10

= 5510

Failed

MoonshotAI

moonshotai/kimi-k2.5

moonshot

927Target
25
100
75
50
10
10

100*10-(75-50/25)

= 927

Perfect Solution!

Z.ai

z-ai/glm-5

z-ai

927Target
25
100
75
50
10
10

100 * 10 - 75 + 50 / 25

= 927

Perfect Solution!

google/gemini-3-flash-preview

google

927Target
25
100
75
50
10
10

(10 * (100 - (10 - (25 / 50))))

= 905

Failed

anthropic/claude-sonnet-4.6

anthropic

927Target
25
100
75
50
10
10

((100 + 75) * 50) / 25 * 10 + 10

= 3510

Failed

Minimax

minimax/minimax-m2.5

minimax

927Target
25
100
75
50
10
10

100 * 10 - 75 + 50 / 25

= 927

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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