Chess Terminology

123456789101112131415
Across
  1. 2. piece that is a pontiff
  2. 4. opening 1.e4 d6
  3. 5. shift King to safety
  4. 7. opening 1.e4 e6
  5. 10. tactic with hidden attack
  6. 12. vertical rows
  7. 13. capture in passing
  8. 14. Sicilian variation
  9. 15. equestrian piece
Down
  1. 1. tactic with double attack
  2. 3. exchange with deficit
  3. 5. King under direct attack
  4. 6. not under attack with no legal move
  5. 7. flank development
  6. 8. opening 1.e4 c5
  7. 9. no good move
  8. 11. horizontal rows