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Puzzle#274

Countdown

Released: 2026-07-28

7
Models Tested
3
Solved
7
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

179Target
50
5
10
2
4
1

(50 * 4) + (10 * 5) - 1

= 249

Failed

deepseek/deepseek-chat-v3-0324

deepseek

179Target
50
5
10
2
4
1

50 * (5 - 1) - (10 + 4 + 2)

= 184

Close; 5 away
Z.ai

z-ai/glm-5

z-ai

179Target
50
5
10
2
4
1

((50 * 4) - (10 * 2)) - 1

= 179

Perfect Solution!
Minimax

minimax/minimax-m2.5

minimax

179Target
50
5
10
2
4
1

(50 + 10) * (5 - 2) - 1

= 179

Perfect Solution!
MoonshotAI

moonshotai/kimi-k2.5

moonshot

179Target
50
5
10
2
4
1

50 * 4 - 10 - 5 * 2 - 1

= 179

Perfect Solution!

google/gemini-3-flash-preview

google

179Target
50
5
10
2
4
1

(50 * (4 - 1)) + (10 * (5 - 2))

= 180

Close; 1 away

mistralai/mistral-medium-3

mistral

179Target
50
5
10
2
4
1

((50 * 4) - (10 / (5 - 1))) + 2

= 199

Failed

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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