Problem 894: Yasin Shale - Helpmate |
![]() ![]() 1.Sf5 Qh6 2.Ke5 Rxe4#
1.Bf4 Qa1 2.Kf5 Bxe4#
Gate opening, selfblock, mate on the same square.
(Author) |
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Comments
In my opinion it's better to let each author the pleasure to provide himself with his own composition.
Good Starter from novice composer ,
Nice Suggestion from senior composer ,
White's first move in both the solutions check , that's missed here.
Dear Francesco and Rajendiran Raju, thank you for valuable comments.
As our editor wrote, this is my first problem published ever. For me, it would be great to hear your concrete recommendations. Anyway, i have another version for this problem:
81K1p4r2k42rN1p23p3q2B2PP13R
Solution:
1. Kxd5 f4
2. Re6 Rxd4#
1. Ke5 Sf4
2. d6 Bxd4#
I already had this version but i gave the priority to my first one since it starts with Queen move.
In this version, King's first key accepts sacrifice on d5, but the second does not. Besides, keys also allow black for blocking moves 2. d6 and 2. Re6. Moreover, white's both moves are on the same squares: on f4 and mates on d4 by capture. I think these elements present unity between solutions.
I would like to hear your comments.
Best regards.
Also the version is nice, in my opinion, with also W1 in the same square.
The solution 1.Ke5 is well done. The wS has two choices to guard the squares d5, e6 but its move is specified by the necessity to interfere the bQ.
In the solution 1.Kd5, however, the move 1...f4 is weak, interference and guard without choices. Also the bQ is weak, since it plays as a rook.
My first comment simply referred to the fact that you can improve construction of the nice 894 without necessarily changing the original strategy.
Perhaps the two problems may be considered as indipendent and partecipate both to the tourney.
All the best,
Francesco Simoni
87b2K1nk26q14p2n3B1P24R32b4Q
Solution:
1.Sf5 Qh6+
2.Ke5 Rxe4#
1.Bf4 Qa1+
2.Kf5 Bxe4#
Here, a group of black pawns and rook on d8 left their places to queen, knight and a pawn. As Kenan Velikanov stated, indeed it's saved very much in the first version.
Thanks.
This version is not good. The white pawn guards the square of mates, so the piece that supports the mating one does nothing.
No big changes are needed. The author could simply rework the first position 894 without modify the strategic content, inspired by some of the constructive elements he used in the version at # 7, but without the need for a white pawn.
In conclusion, following position sets in:
87b2K1nk26p14p1pn5B24R32b4Q
Solution:
1. Sf5 Qh6+
2. Ke5 Rxe4#
1. Bf4 Qa1+
2. Kf5 Bxe4#
Thanks for valuable comments and discussion.
I wonder why anyone would like bPe4 which is there just to present the White's brutality.
wR could stand e.g. on a4 and wB on g2, without bPe4.
b71Qr51b63nk35p2R74B1K
1. Rc4 (R~) Qe7
2. Kd4 Rd3#
1. Be3 (B~) Qb2
2. Ke4 Bd3#
Moving wRd2 to b4, removing wPf3 and adding wSf2 would motivate 1.Kxd5 Sg4!(Sd3?).
(Actually, wSf2 could be on e5 and captured in the other phase.)
Also, anti-dual 1.Ke5-2.d6(Rd6?) exists only in one phase, so having 2 different blockers for e6/d6 spoils the economy (a single bP could block both squares).
As the construction develops, some new possibilities occur. For instance, a new pair of phases might be considered to get Pickaniny (perhaps not very good but at least in Meredith).
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