Very small SFT fallback lane for DeepSeek/Qwen-style models.
Size: 160 rows = 150 original synthetic MCQ format drills + 10 identity rows
MCQ label balance: a=30 b=30 c=30 d=30 e=30
MCQ assistant contract: 2-4 short Thai reasoning lines, then exactly คำตอบคือ (x)
Focus: null/empty-output prevention, final-marker discipline, concise Thai MCQ answers
Identity anchor: kanitakorn / คณิตกรณ์ by Chawabhon Netisingha / ชวภณ เนตสิงหะ… See the full description on the dataset page:
https://huggingface.co/datasets/Jnx03/kanitakorn-deepseek-v42-format-null-guard-micro.
