Solver's impressions 11

Scrapings 5 - July 2000

So, here I am with my older solutions. I was very busy recently but fortunately I got the free weekend with computer after very long time and so I wrote them. I remember that as usually the solving of CJF's helpmates was enjoyable, not simple, but rewarding.
Chris J. Feather
1 Scrapings 5 - May 2000

a) 1.Sg2 Gh1+ 2.Rg4 Gh4#

b) 1.Se7 Ge8 2.f5 Gg6#

It needed a lot of effort from me to solve this. Echo diagonal-orthogonal with use of all white grasshoppers. Good twinning with moving the the furthest grasshopper.

h#2 (6+6)
5+0 grasshopper
b) a4 -» b1

Chris J. Feather
2 Scrapings 5 - May 2000

a) 1.Sg7 Qd2 2.Qe4 Qxd6+ 3.Kf5 Qf6#

b) 1.Sf5 Qe3 2.Qg8 Qxe6+ 3.Kg7 Qf6#

Another helpmate that was very hard to solve despite good analogy. Finding solution to any phase was difficult, the other one was then simple. Halfpin nor the pin on sixth are used in mate, one knight opens a6-f6 and closes black line piece, second is captured (reciprocally), queen unguards f6 and blocks, king moves to mate square closing other black line mover originally attacking f6.

h#3 (5+15)
b) e5 -» d5

Chris J. Feather
3 Scrapings 5 - May 2000

1.Bc4 Sf5 2.Kd5 Qb7#

1.Bd6 Qxc5 2.Ke5 Qe3#

1.Qxe7 Qxd5+ 2.Kf5 Qf3#

A bit unbalanced position. Almost in every respect something works well in 2 phases, but fails in 3rd phase... Strangely, one can find cyclical idea in this h# with 3 solutions: if you watch black pieces that are pinned and leave 5th row, we see they are Qc5, Bd5 - Bd5, Be5 - Be5, Qc5 in respective phases. So it is in fact an example for 3rd TT Pat a Mat, although probably artificial...

h#2 (4+8)

Chris J. Feather
4 Scrapings 5 - May 2000

a) 1.Kf4 Ke6 2.Bf3 Re5 3.Re3 fxe3#

b) 1.Kf5 f3 2.Bf4 Re6 3.Re4 fxe4#

c) 1.Kf6 f4 2.Bf5 Re7 3.Re5 fxe5#

3-fold echo with magnet theme shown by two rooks. Not too difficult.

h#3 (3+8)
b) e4 -» e3
c) d7 -» e8

Chris J. Feather
5 Scrapings 5 - May 2000

1.e5 Sb5 2.Bxc5+ Sd4 3.Be7 c5 4.Bg5 Sf5#

1.exd6 cxd6 2.Bb4 d7 3.Bf8 d8S 4.Bg7 Sf7#

Echo mates after very different actions. In first solution there is tempo move by white pc4, in second tempo move by black Ba3 and Phenix of white knight.

h#4 (5+13)

Chris J. Feather
7 Scrapings 5 - May 2000

1.Kc5 exf8G 2.Gb5 Qd6#

1.Kxe5 e8G 2.Gd4 Qe6#

1.Gh6 exd8G 2.Ge3 Qxd5#

Three analogic doublecheck mates by queen and grasshopper, analogy is improved by presence of 3 grasshopper promotions by white. Black play is sufficiently analogous.

h#2 (5+9)
0+2 grasshopper

Chris J. Feather
Quartz "1998" = 1999

1.Sd5 Qh2! (Qg1?, Qh5?) 2.Rb7 Qd6#

1.Sf5 Qg1! (Qh5?, Qh2?) 2.Rd7 Qb6#

1.Sc8 Qh5! (Qh2?, Qg1?) 2.Rc7 Qb5#

Cyclical triple avoidance by the only 3 possible knight moves in diagram. Sf5 closes 2 lines, Sc8 guards 2 mating squares and Sd5 closes 1 line and guards 1 mating square. Another example for 3rd TT Pat a Mat, natural one this time.

h#2 (4+7)

Comments to Juraj Lörinc.
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