New game "Duel"

Both players have 21 points.
Cost of movement are shown on pictures.
Players may attack or defence on high, medium or low levels.
Movements are simultaneous.
Turn 1. Player A attacks, player B defends.
Turn 2. Player B attacks, player A defends.
Turn 3. Player A attacks, player B defends.
For one point defender may know the attack and then react.
When defender don't defend against actual attack, he lose 2-3 points to correct his defence.
If defender dont have more points left to correct his wrong defence, he lose the duel.