• 2♦️ waiting: bust, or no suit to bid, or 8+ HCP balanced
  • 2❤️ 5+ hearts or 24+ HCP balanced
    • 2♠️ relay completed
      • 2NT 24+ HCP, balanced. Response structure is the same as after 2NT opening
      • 3♣️ 5+ hearts, 4+ clubs
      • 3♦️ 5+ hearts, 4+ diamonds
      • 3❤️ 6+ hearts
      • 3♠️ 5+ hearts, 4+ spades
  • 2♠️ 5+ spades
  • 2NT 22-23 HCP, balanced. Responder may pass with bust. Response structure is the same as after 2NT opening
  • 3♣️ unbalanced with clubs, might have a 4 card major
    • 3♦️ Stayman
    • 3❤️/♠️ 5+ major
  • 3♦️ unbalanced with diamonds, no 4 card major. Probably 6 diamonds, unless 1-3-5-4
  • 3❤️/♠️ unbalanced with four hearts/spades and diamonds
• 2❤️/♠️ 8+ HCP, 5+ suit
• 3♣️/♦️ 8+ HCP, 6+ suit

Reference: Kokish Relay on bridgebum