Refers to cleverness in planning or devising strategies, often in a tactical or problem-solving context. Slightly formal/literary tone.
Thanks to his resourcefulness, the company overcame the crisis.
戦国武将には知謀に長けた者が多かった。
Many Sengoku warlords excelled in ingenuity.
Standard kanji form; 知 is the common character for wisdom/knowledge.
Alternate kanji form using 智 (wisdom/intellect); less common but still encountered.
Compound of 知 (wisdom, knowledge) and 謀 (plan, scheme). The exact historical derivation is uncertain, but the combination naturally yields the meaning of clever planning or resourcefulness.