Grenades are a large part of your toolbox in CS:GO, learning to use them properly can greatly improve your skill and add to your knowledge of the game. One technique is known as the pop flash, designed to give your opponent the minimal amount of time to look away before the flash pops, resulting in a white screen for your opponent and kills for you. Knowing the right time and place to use these grenades can quickly change a bad situation into an advantageous one and allow you to get an uncontested kill. Below are five pop flashes to help you on de_cache. There will also be a video with a quick runthrough of each flash shown at the bottom.

#1: B Bomb Site - Checkers to B Main

Left - Go into checkers and place yourself over the small dark dot (circled)

Right - On the bottom row there are 2 blocks with patches of green moss on them (shown by the red lines), find the line inbetween them (arrow), then move your crosshair up to the bottom line of the second rectangle from the top. Throw using left click.

Bottom - The flash comes out of the doorway from B main into checkers, blinding anyone looking towards B.

#2. B Bomb Site - Default to Mid Site

Left - While standing behind the default boxes on B site, look up to this part of the wall. Place your crosshair at the corner where the horizontal line meets the white and brown. Throw using left click.

Right - Your grenade should bounce off the slanted part of the wall and back down into the middle of B site. This will blind anyone looking into B site from tree room, B main, or checkers.

I personally get an incredible amount of use out of this flash. It has won me countless clutch situations and helps me hold site regularly.

#3. B Bomb Site - Tree Room to B Site

Top - Stand up against the left corner of the entrance from tree room to B site and look up at the middle crossbar. Look near the center and aim at one of the dark dots on the far side of the bar. Throw using left click.

Left / Right - With and without a smoke. The grenade will come down and flash anyone looking towards tree room with the exception of someone standing under second heaven (Marked by the X)

I recommend using this only when a smoke is blocking you out of tree room. It allows for an easy entry when retaking B site because the flash is concealed completely by the smoke.

#4: A Bomb Site - A Site to A Main

Left - When running to A site from truck, stop alongside the parking blocks.

Right - Look at the wall above the A main doorway. Place your crosshair on the first vertical line over the entrance from the right, then move it down to where the black and white parts of the wall meet. Throw using left click.

Bottom - The trajectory of the grenade. Use this to flash your teammate into A main so they can gather info or try to pick off an enemy.

#5: A Bomb Site - A Main Self Pop Flash

Left - This popflash is done while running, so it may take some practice. The red line represents where your body should be when the grenade is released, and the green line represents where your crosshair should be.

Right - This is roughly where you should be when you release your grenade. Your body is even with the start of the forklift, and your crosshair is on the line going into the middle of the A main entrance. The grenade will bounce off the slanted piece of mental and up into A main. This allows you to continue running into A main and peek while the flash goes off behind your back, blinding the enemy but not yourself.

Bottom - Showing how the grenade should bounce up into A main.

Video Breakdown