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Puzzle#262

Countdown

Released: 2026-07-16

7
Models Tested
3
Solved
7
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

245Target
100
25
50
2
9
10

((10 + 2) * 25) - 9 + 50

= 341

Failed

deepseek/deepseek-chat-v3-0324

deepseek

245Target
100
25
50
2
9
10

(50 * (10 - 2)) - (100 + 25 + 9)

= 266

Failed

mistralai/mistral-medium-3

mistral

245Target
100
25
50
2
9
10

(100 + 50) + (25 * 9) + (10 / 2)

= 380

Failed
Z.ai

z-ai/glm-5

z-ai

245Target
100
25
50
2
9
10

(25 * 9) + (2 * 10)

= 245

Perfect Solution!
MoonshotAI

moonshotai/kimi-k2.5

moonshot

245Target
100
25
50
2
9
10

25 * 9 + 2 * 10

= 245

Perfect Solution!
Minimax

minimax/minimax-m2.5

minimax

245Target
100
25
50
2
9
10

(9 - 2) * (25 + 10)

= 245

Perfect Solution!

google/gemini-3-flash-preview

google

245Target
100
25
50
2
9
10

(25 * 10) - (50 / (100 / 2)) - 9

= 240

Close; 5 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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