## Saturday, July 21, 2012

### A helpmate composition and an Exercise

During the World Congress of Chess Composition (WCCC) of 2010 in Crete, there were various composition contests.
For the 13th Sabra Composing Ty, we should compose an orthodox helpmate two-mover, where
B1 (first black move) : a black piece captures a white which closes a line
W1 (first white move) : a white piece, of line movement, arrives on this line
B2 (second black move) : the black piece, which made the capture, moves.

I made the following problem, with no distinction :

 3bk3/3p2p1/3P2P1/4PP2/PrP5/1P5b/2K5/5R1B (10 + 6) Problem-601 Manolas Emmanuel original h#2 a) Diagram, b) bKe8→c8 a) 1.Bxf5+ Be4 2.Bxg6 Bxg6# b) 1.Rxa4 Ra1 2.Ra8 Rxa8# Bicolour Bristol, Orthogonal - Diagonal transformation, Black sacrifices, Duels wB with bB, wR with bR.

The Exercise is the following :
For the following position, (heterodoxe, because on d8 there is a Grasshopper), there are solutions when the bK is placed on squares e8 and g8.
Try to find a very economical modification (translocation or addition or removal of a piece), with which the problem has solution when the bK is placed on square c8.

 3gk3/3p2p1/3P2P1/r4P2/2P5/7b/4KRB1/8 (7 + 6) (Grasshopper 0 + d8) Problem-602a Manolas Emmanuel original h#2 a) Diagram, b) bKe8→c8, c) bKe8→g8 a) 1.Bxf5 Be4 2.Bxg6 Bxg6# b) 1.?? ?? 2.?? ?? c) 1.Rxf5 Rxf5 2.Gh8 Bd5#

You may send the modification and the solution, the latest Tuesday 24-July-2012, by email to manolas.emmanuel@gmail.com. The correct solutions will be published.

### Solution of the exercise

The correct answer was send by the Slovakian composer Jaroslav Stun (visit his page here) :
a) bRa5b5, which is the most economical, and
b) +bPb6
Thank you chess-friend Jaroslav!

 3gk3/3p2p1/3P2P1/1r3P2/2P5/7b/4KRB1/8 (7 + 6) (Grasshopper 0 + d8) Problem-602 Manolas Emmanuel original h#2 a) Diagram, b) bKe8→c8, c) bKe8→g8 a) 1.Bxf5 Be4 2.Bxg6 Bxg6# b) 1.Bxf5 Rxf5 2.Rb8 Rc5# c) 1.Rxf5 Rxf5 2.Gh8 Bd5# Bicolour Bristol, ODT, Black Quasi-sacrifices. (Not very good as a problem, due to repetition of moves).

 3gk3/3p2p1/1p1P2P1/r4P2/2P5/7b/4KRB1/8 (7 + 7) (Grasshopper 0 + d8) Problem-602b Manolas Emmanuel original h#2 a) Diagram, b) bKe8→c8, c) bKe8→g8 a) 1.Bxf5 Be4 2.Bxg6 Bxg6# b) 1.Rxf5 Rxf5 2.Ga5 Rf8# c) 1.Rxf5 Rxf5 2.Gh8 Bd5#