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Puzzle#156

Countdown

Released: 2026-04-01


11
Models Tested
2
Solved
9
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

google/gemini-2.0-flash-001

google

885Target
50
75
2
4
2
10

(75 * 10) + 50 + 2 * 2 - 4

= 800

Failed

openai/gpt-4o

openai

885Target
50
75
2
4
2
10

(75 * 10) + (4 * 50) - 2

= 948

Failed

mistralai/mistral-medium-3

mistral

885Target
50
75
2
4
2
10

((75 + 50) * (10 + 2)) - (4 / 2)

= 1498

Failed

anthropic/claude-3.7-sonnet

anthropic

885Target
50
75
2
4
2
10

(75 - 2) * (10 + 2)

= 876

Failed

deepseek/deepseek-chat-v3-0324

deepseek

885Target
50
75
2
4
2
10

((75 + 50) * (10 - 2)) + (4 + 2)

= 1006

Failed

Minimax

minimax/minimax-m2.5

minimax

885Target
50
75
2
4
2
10

(75 * (10 + 2)) - (50 / (4 / 2))

= 875

Failed

x-ai/grok-3-mini-beta

x-ai

885Target
50
75
2
4
2
10

(75 * (10 + 2) - (4 * 2))

= 892

Failed

Z.ai

z-ai/glm-5

z-ai

885Target
50
75
2
4
2
10

50 * 4 * (2 + 2) + 75 + 10

= 885

Perfect Solution!

google/gemini-3-flash-preview

google

885Target
50
75
2
4
2
10

(10 * (75 + 50 / 4)) - 2

= 873

Failed

MoonshotAI

moonshotai/kimi-k2.5

moonshot

885Target
50
75
2
4
2
10

(50*2-4)*10-75

= 885

Perfect Solution!

anthropic/claude-sonnet-4.6

anthropic

885Target
50
75
2
4
2
10

50 * (2 + 10 + 4 + 2) - 75

= 825

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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