Flash card OFLAMERONThe first version of the game OFLAMERON (with advanced flash card) was created in 1994. The game was used to train mental arithmetic In the game used a special sheet with a playing field in a table and dice.
This flash card OFLAMERON is much more interesting, harder and more effective than classic flash cards.
Then there was created an online applet in Java - Free on-line game "X-FLOOD" and "X-STEP Strategy"
Source codes available in Internet