Intense core workout with 2 supersets and 4 exercises! You will develop abs, obliques and hip flexors.
When it comes to developing a great six pack, proper training is extremely important but so is having a good lifestyle (not just diet).
Lifestyle factors such as sleep, getting enough vitamin D (sun), inflammation and dealing with stress make a huge difference, but diet is probably the biggest one.
If you need help with your diet (and also learn how to fully train the core), check out Abs 20XX guide for all the guidelines, recipes and nutrition plans.
Training is the second big component that you need to develop a strong, aesthetic and defined core.
You sometimes hear many myths like "everyone has abs, just lose body fat" or "big compound exercises are enough for abs", but this is not the case.
It's true that everyone has abs beneath the layers of fat, but not everyone has good and big abs. Abs are similar to your biceps: they grow when you work on them.
It's also true that compound exercises and movement training are GREAT for developing the abs, but for full development you also need to train the core with many isolation exercises.
The reality is that the core is incredibly complex and requires a wide repertoire of different exercises to target all different parts of the core.
Here is an intense core workout to develop abs, obliques and hip flexors (tightly connected to abs training). If superset 2 is too difficult for you, then just do the super set 1 for 3-5 rounds.
Dynamic Core Workout
SUPERSET ONE for 2 rounds
Mountain climber: 4 x 8 repetitions
Explosive push up to side plank: transition
Side plank bend: 4 x 8 repetitions
SUPERSET TWO for 3 rounds
V-sit flutter kicks: 2 x 10 repetitions
V-sit up: 2 x 8 repetitions
Rest 1-2 minutes between rounds and supersets.