Mirage Window Smoke from T Spawn
This smoke can not* be countered by an early molotov, as it doesn't leave any gaps either way.
Get youself into the corner, crouch and aim at the dot as shown. Press left + forward and jumpthrow. On 128-tick hit jumpthrow immediately, on 64-tick hit jumpthow in about 4 seconds, just as you're about to slide off the corner. Video shows 64-tick throw.
*may be possible to counter if the molotov timed precisely after the first bounce and the smoke blooms against the wall.