The peace treaty

123456789101112131415
Across
  1. 3. Three black balls on a black stem(shape)
  2. 5. The “one” in a pack of cards
  3. 6. Triangle joined together
  4. 7. The rank of this card is between a 10 and a queen
  5. 9. of playing cards
  6. 10. seat of a high dignitary
  7. 12. homophone for “piece”
  8. 13. an extra card in a deck
  9. 15. Strongest piece in CHESS
Down
  1. 1. conflict resolver
  2. 2. the queen of spades
  3. 4. A black shaped inverted heart with a stem
  4. 8. Divide the deck into 2 pieces
  5. 11. The beating organ in our body
  6. 14. Highest ranked card in the deck