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Puzzle#136

Countdown

Released: 2026-03-12


11
Models Tested
2
Solved
9
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

446Target
100
50
1
9
10
9

(9 * 50) + (10 * (9 - 1))

= 530

Failed

deepseek/deepseek-chat-v3-0324

deepseek

446Target
100
50
1
9
10
9

(100 + 9) * (10 - (9 - 1)) + 50

= 268

Failed

mistralai/mistral-medium-3

mistral

446Target
100
50
1
9
10
9

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

= 6421

Failed

x-ai/grok-3-mini-beta

x-ai

446Target
100
50
1
9
10
9

(50 * 9) - (10 - 9) * 1

= 449

Close; 3 away

Z.ai

z-ai/glm-5

z-ai

446Target
100
50
1
9
10
9

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

= 446

Perfect Solution!

google/gemini-2.0-flash-001

google

446Target
100
50
1
9
10
9

(100 - 50) * 9 - 10 + 9 + 1

= 450

Close; 4 away

anthropic/claude-3.7-sonnet

anthropic

446Target
100
50
1
9
10
9

(9 * 50) - 9 + 10 + 100 + 1

= 552

Failed

MoonshotAI

moonshotai/kimi-k2.5

moonshot

446Target
100
50
1
9
10
9

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

= 446

Perfect Solution!

Minimax

minimax/minimax-m2.5

minimax

446Target
100
50
1
9
10
9

(100 + 50) * 9 + 10 - 9 - 1

= 1350

Failed

anthropic/claude-sonnet-4.6

anthropic

446Target
100
50
1
9
10
9

100 * (1 + 9/9) + 50 - 10

= 240

Failed

google/gemini-3-flash-preview

google

446Target
100
50
1
9
10
9

(50 * 9) - ((100 / 10) / (9 - 1))

= 448

Close; 2 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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