Kriegspiel or Kriegsspiel: How To spell?
The word Kriegspiel is misspelled against Kriegsspiel, a noun meaning "A game of war, played for practice, on maps."
Kriegsspiel has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings krieg & piel which should not be misspelled with single 'S'
Wrong Spelling:  krieg-s-piel  Correct Spelling:  krieg-ss-piel 
Find more wrongly spelled words of Kriegsspiel to spell it well.