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Puzzle#177

Countdown

Released: 2026-04-22


11
Models Tested
1
Solved
9
LLM Providers

Key:

Used
Unused

Score Threshold:

Within 7

openai/gpt-4o

openai

499Target
25
50
4
2
6
4

((50 * 6) * (4 - 2)) - 25/4

= 593

Failed

google/gemini-2.0-flash-001

google

499Target
25
50
4
2
6
4

(50 * (6 + 4)) - (25 - 4) * 2

= 458

Failed

mistralai/mistral-medium-3

mistral

499Target
25
50
4
2
6
4

((25 * (50 - (6 / 2))) + (4 * 4))

= 1191

Failed

anthropic/claude-3.7-sonnet

anthropic

499Target
25
50
4
2
6
4

50 * 25 - 4 - (6 / 2)

= 1243

Failed

deepseek/deepseek-chat-v3-0324

deepseek

499Target
25
50
4
2
6
4

((50 + 6) * (25 - 4)) - 4

= 1172

Failed

x-ai/grok-3-mini-beta

x-ai

499Target
25
50
4
2
6
4

50 * (6 + 4)

= 500

Close; 1 away

Z.ai

z-ai/glm-5

z-ai

499Target
25
50
4
2
6
4

(50 - 25) * (6 * 4 - 4) - 2

= 498

Close; 1 away

Minimax

minimax/minimax-m2.5

minimax

499Target
25
50
4
2
6
4

50 * (6 + 4) + 25 - 2 - 4

= 519

Failed

MoonshotAI

moonshotai/kimi-k2.5

moonshot

499Target
25
50
4
2
6
4

(50 + 2) * (6 + 4) - (25 - 4)

= 499

Perfect Solution!

anthropic/claude-sonnet-4.6

anthropic

499Target
25
50
4
2
6
4

50 * (4 + 6) - 4 + 25 - 2

= 519

Failed

google/gemini-3-flash-preview

google

499Target
25
50
4
2
6
4

(25 * 50 / 2) - (6 * 4) + 4

= 605

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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