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Puzzle#255

Countdown

Released: 2026-07-09

8
Models Tested
3
Solved
8
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

google/gemini-3-flash-preview

google

464Target
75
100
50
25
8
4

((75 - 25 + 8) * 4) + 100 + 50

= 382

Failed

mistralai/mistral-medium-3

mistral

464Target
75
100
50
25
8
4

(100 * 50) - (75 + (25 * (8 + 4)))

= 4625

Failed

openai/gpt-4o

openai

464Target
75
100
50
25
8
4

(75 * 8) - (100 + 4)

= 496

Failed

anthropic/claude-sonnet-4.6

anthropic

464Target
75
100
50
25
8
4

((75 + 8) * 4) * (100 / 25) + 50

= 1378

Failed

deepseek/deepseek-chat-v3-0324

deepseek

464Target
75
100
50
25
8
4

(100 + 75) * (50 - 25) - (8 + 4)

= 4363

Failed
Z.ai

z-ai/glm-5

z-ai

464Target
75
100
50
25
8
4

(8*(50/25))*(100-75+4)

= 464

Perfect Solution!
Minimax

minimax/minimax-m2.5

minimax

464Target
75
100
50
25
8
4

8 * (100 / 50) * (25 + 4)

= 464

Perfect Solution!
MoonshotAI

moonshotai/kimi-k2.5

moonshot

464Target
75
100
50
25
8
4

(100 + 8 * (50 / 25)) * 4

= 464

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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