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Puzzle#226

Countdown

Released: 2026-06-10

7
Models Tested
3
Solved
7
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

google/gemini-3-flash-preview

google

231Target
25
100
75
50
10
1

(25 * 10) - (75 + 50) + 100 + 1

= 226

Close; 5 away

openai/gpt-4o

openai

231Target
25
100
75
50
10
1

((25 * 10) - 75) + 1 + 50

= 226

Close; 5 away

deepseek/deepseek-chat-v3-0324

deepseek

231Target
25
100
75
50
10
1

((100 + 10) * (25 - 1)) - (75 + 50)

= 2515

Failed
MoonshotAI

moonshotai/kimi-k2.5

moonshot

231Target
25
100
75
50
10
1

(10 + 1) * (75 - 50 - 100 / 25)

= 231

Perfect Solution!
Z.ai

z-ai/glm-5

z-ai

231Target
25
100
75
50
10
1

10 * (25 - 100 / 50) + 1

= 231

Perfect Solution!

mistralai/mistral-medium-3

mistral

231Target
25
100
75
50
10
1

(100 + 75 + 50) * (25 / (10 - 1))

= 625

Failed
Minimax

minimax/minimax-m2.5

minimax

231Target
25
100
75
50
10
1

(75 - (50 + 100/25)) * (10 + 1)

= 231

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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