This is my very first chess puzzle. Any constructive feedback is more than welcome. Thanks!
Introducing 3D Chess!
To make things simple for the first time, we are using a $3\times3\times3$ chessboard.
First Things First - Notation:
From top to bottom: i, ii, iii
From left to right: a, b, c
From front to back: 1, 2, 3
In other words (images) [sorry for my crude drawing :P]:
Then - How Pieces Move
The puzzle this time only involves 3 kinds of pieces: Knight, Bishop, and King.
Note: Axes 1,2,3 can be any permutation of X, Y, and Z
1) Knight: (Axis1, Axis2, Axis3) = (0,1,2)
2) Bishop: (Axis1, Axis2, Axis3) = (0,n,n)
3) King: (Axis1, Axis2, Axis3) = (0,0,1) or (0,1,1)
Now - The Puzzle
Given the configuration below, construct a stalemate (whatever side) in the minimum number of moves. White to move, and both sides take best moves.
Note - Criterium
The one that has the solution with the currently least number of moves and $moves \leq$ 7 will get the green check. If needed, I will provide the number of moves in my solution in a hint.
no-computers... though I wonder if it would be useful even if you use one :)
Clarification - Best move
(no Checkmates allowed) > Check to Capture > Check > Capture > Attack > Normal moving > Defense from Check or Attack
Check to Capture: (can capture another piece in the next move since opponent is checked and that piece cannot be moved)
Attack: (can capture another piece should that piece not move in the next move)
Normal Move: (any other moves that is not Check to Capture, Check, Capture, Attack, or Defense)
Can anyone please explain the downvote? Thank you very much!
More - Hints
usefulness level 1
My solution used 4 steps