On all your tests, which I have found, my program works correctly,
but alltimes I have got WA. Why?
What about this test (8x8):
WP: e5
BP: d6
BK: c6
WHITE WINS!!!!!
but:
WP: e4
BP: d5
BK: c5
BLACK WINS!!!!!
May BK stand under check in initial position?
Please give me tests on all cases, which you have accounted in your
program.

Tests are not a subject to be published, as you know :-)
You may send me your program, and I'll try to find out, what's wrong.