Fix critical SEE bug (take 2)
It is somewhat unbilievable but our SEE is broken !
    If the first SEE move is a king capture and square is
    defended then SEE continues instead of breaking.
    The bug shows only on normal SEE, not see_sign() so
    probing with a:
    dbg_hit_on_c(slIndex==1, captured == KING);
    reports just a tiny:
    Total 3465656 Hits 6646 hit rate (%) 0
    Bug was there since Retire seeValues[] and move PieceValue[] out of Position of 26/6/2011 (!)
    although for some reason didn't show immediately, indeed the
    bougous patch was a "No functional change" (!!)
    bench: 4699504