WEITUWEIQI

Oshiqi mechanics with both players playing "x"s. Chicken start.
Moves are mandatory, and if the game ends by stalemate then the winner is determined by whether the boundary has been reached.
Any boundary hit is a win for ESCAPER, otherwise BLOCKER wins.
Hitting the boundary before either side has declared is an immediate loss.

Unlur or "chicken" starting:-  both sides play moves as if for the weaker side, in this case blocker.  If at any time a player feels blocker is now certain to win, he announces "I Block!", but does not make a move. The other player is thus escaper and plays the first move in regular alternation.

Note: If, still on the first phase, a player makes a stalemate position he loses (the other say 'I block' and he cannot continue)

                           bill  joao
abcdefghijklmnopqrstu      ----------
     . x . . . x        1. a6    n7
    x x . x x x .       2. m8    r3
   . . . . . . . x      3. k6    h1
  x . . . . . x . x     4. g2    b4
 x x . . . . x . . x    5. j7    e2,sw
x . . . . x . . . . .   6. b7,e  m2
 x . . . x . x x : x    7. i8,nw c4
  . . . x . x . . x     8. k2    p7
   x . . . . o . .      9. o2,sw e10
    x . . . . : .      10. n5    d9
     . . . . . x       11. s4    d5
abcdefghijklmnopqrstu  12. s8    p1
                       13. t7    o4
                       14. BLOCK t5
                       15. p11   resigns

This game uses a similar concept as in Unlur, which might imply a new family of games: "Chicken Games".