How many blocks can you reach(break) without moving?

What is the maximum number of blocks can you reach(break) without moving at all? (Assume that there are no moving part/command blocks in the world)

2 Answers

So I just did an experiment to find out.

Testing Methodology

1. Generate creative superflat world full of glass. Preset used: 3;256*minecraft:glass;127;
2. Disable W, A, S, D, Space, Shift keys.
3. Teleport the player to according location. (See the results)
4. Break all reachable blocks. Used turbo click AutoHotkey script to accelerate the process.
5. Execute /fill ~-9 ~-9 ~-9 ~9 ~9 ~9 stained_glass 0 keep to count the blocks broken in creative mode.

Results

• When normally "standing" on the center of block(/tp X.5, Y.0, Z.5): 767 blocks.
• When the player's eye is exactly at the corner of the block(/tp X.0, Y.38, Z.0): 720 blocks. (Which is divisible by 2^3=8)

It is 4 blocks in single player survival and 5 blocks in multiplayer survival. Also, this question may be a duplicate :(How far away can you mine blocks while standing in one place?)