Riddles, brain puzzles and mathematical problems

[BAndrew]

Black to move? Also what do you mean "overcome"? As in they are allowed to take? Then you can't switch the positions.

EDIT: Never mind, I missed "cannot go to a square occupied by another horse".

You can move any of the horses you like and as many times as you want (for example you can move the (7) white piece 3 times in a row).

By overcome I mean, well it can "jump" other horses just like chess, but there can't be two horses at the same place. Generally just follow the chess rules.

Well fail "overcome" is not a word that fits there. Thanks, I'll get that fixed.