Kostas Prentos & Diane Barnard – welcome to Diane, Kostas’s wife!
Original Problems, Julia’s Fairies – 2013 (I): January – April
Please send your original fairy problems to: email@example.com
No.218 – “Half-check Chess” by Kostas Prentos & his wife Diane Barnard – family-made problem with unusual condition! Have to add that Half-check Chess is not programmed, so the problem is not computer tested. (JV)
In half-check chess, the effect of a check is delayed for a while, i.e. the checking piece loses the power to capture the King. This is called half-check, it is denoted as (+) and it becomes fully effective only after the next move, if the checking piece and the king remain in half-check position during the play. This is a full-check and it is denoted as + (it is check in the ordinary sense). Checkmate is delivered by full-check.
No.218 Kostas Prentos & Diane Barnard
h#2 2 solutions (3+7) C-
Solutions: (click to show/hide)
I. 1.Kd6 d8=Q(+) 2.Kd7 e8=R# [2…e8=Q(+)+? 3.Ke6]
II. 1.Sd6 d8=S(+) 2.Qf5 e8=B# [2…e8=Q(+)+? 3.Kd7]
AUW, Dual avoidance, Umnov effects. (Authors)