Novikov Wormhole + Contact-Fused Bomb

Consistent: explosion (a) propels shrapnel into mouth 2, which triggers the explosion and closes the loop.

Inconsistent: explosion (b) paradoxically destroys both stages.

After Igor D. Novikov, 'Time Machine and Self-consistent Evolution in Problems with Self-interaction', Physical Review D, Vol. 45, No. 6, 1992: 1989-1994.

Done