Items Authored by Karl Scherer
- Atlantis Puzzles, Games and Art. Missing description Author: Karl Scherer.
- Bank Chess . Put your assets on the bank for later use! 6 Variants. Author: Karl Scherer. Inventor: Karl Scherer and Denis van Straten.
- Bughouse Chess. 4 player variant where pieces taken from your opponent are given to your partner. Author: Karl Scherer.
- Changling Chess. Rooks become Bishops and Bishops become Rooks when moved. By Karl Scherer.
- Delayed Chess. Only see your opponent's moves that are two moves old. Author: Karl Scherer. Inventor: Peter Obermair.
- Hydra Chess . Captured pieces return. Regrown pieces will be of lesser value. By Karl Scherer.
- Island Chess. Some connections between squares are missing. By Karl Scherer.
- Karma Chess . A piece that has captured an opponent's piece is turned into one of better quality. By Karl Scherer.
- River Chess . Get one of your pieces to the other side of the board. By Karl Scherer.
- Trophy Hunt Chess. Capture at least one of each trophy animal to win. Author: Douglas Silfen and Karl Scherer.
- Whale Shogi. Small Shogi variant. Author: Douglas Silfen and Karl Scherer. Inventor: R. Wayne Schmittberger.