AI vs Puzzles

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Puzzle#260

Countdown

Released: 2026-07-14

8
Models Tested
2
Solved
8
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

google/gemini-3-flash-preview

google

599Target
50
75
100
25
8
4

(8 * 75) - (4 - (50 / 25))

= 598

Close; 1 away

openai/gpt-4o

openai

599Target
50
75
100
25
8
4

((75 * 8) - 4) - 25

= 571

Failed

mistralai/mistral-medium-3

mistral

599Target
50
75
100
25
8
4

((75 + 50) * (8 + 4)) - (100 / 25)

= 1496

Failed

deepseek/deepseek-chat-v3-0324

deepseek

599Target
50
75
100
25
8
4

(100 * (75 - (50 / 25))) - (8 + 4)

= 7288

Failed
Minimax

minimax/minimax-m2.5

minimax

599Target
50
75
100
25
8
4

100 + 50 + 25 * 8 + 4 * 75

= 650

Failed
MoonshotAI

moonshotai/kimi-k2.5

moonshot

599Target
50
75
100
25
8
4

50 * (8 + 4) - 100 / (75 + 25)

= 599

Perfect Solution!
Z.ai

z-ai/glm-5

z-ai

599Target
50
75
100
25
8
4

(8 + 4) * 50 - (75 + 25) / 100

= 599

Perfect Solution!

anthropic/claude-sonnet-4.6

anthropic

599Target
50
75
100
25
8
4

75 * 8 - 4 + 25 - 50 + 100

= 671

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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