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Puzzle#294

Countdown

Released: 2026-08-17

7
Models Tested
2
Solved
7
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

172Target
100
25
75
50
10
2

(100 + 75 - 10) * 2 + 25

= 355

Failed

mistralai/mistral-medium-3

mistral

172Target
100
25
75
50
10
2

(100 + 75) + (50 - 10) + (2 * 25)

= 265

Failed
Minimax

minimax/minimax-m2.5

minimax

172Target
100
25
75
50
10
2

100 + 50 + 25 - 2

= 173

Close; 1 away

deepseek/deepseek-chat-v3-0324

deepseek

172Target
100
25
75
50
10
2

100 + 75 - (50 / (10 / 2))

= 165

Failed
Z.ai

z-ai/glm-5

z-ai

172Target
100
25
75
50
10
2

100 + 75 - 10/2 + 50/25

= 172

Perfect Solution!
MoonshotAI

moonshotai/kimi-k2.5

moonshot

172Target
100
25
75
50
10
2

100 + 75 + 2 - 50 / 10

= 172

Perfect Solution!

google/gemini-3-flash-preview

google

172Target
100
25
75
50
10
2

(100 + 75) - (50 / 25) - (10 / 2)

= 168

Close; 4 away

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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