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| (1) Posted by Michael McDowell [Friday, Jul 18, 2008 20:25] |
Two-move challenge
Can anyone compose a two-mover where three Schiffmann defences on square A are followed by three mates on square B?
I have done it (and even thrown in a fourth Schiffmann, with mate on square C), but with an unacceptable key. Attempts at an orthodox setting seem to fail because there is always one flight which cannot be covered.
I’d be interested to see if anyone can do it properly.
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| (2) Posted by Michael McDowell [Thursday, Aug 14, 2008 10:15] |
The following problem surely deserves to be better known:
J.E.Funk
Chess Amateur, December 1928
 (= 9+7 )
Mate in 2
1.Qe2 (>2.d3)
1...Rxe4 2.d4
1...Qxe4 2.Sxd4
1...Sxe4 2.Bxd4
1...R/Sd3 2.Qd1
1...Rxd2 2.Qxd2
I like the way the two by-play variations arise naturally. Surprisingly, none of the CA solvers mentioned the mates on the same square.
A disappointment for Hauke, who discovered the same matrix.
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| (3) Posted by Zalmen Kornin [Sunday, Apr 23, 2017 17:31] |
Someone else discovered the same matrix in 1912 http://www.yacpdb.org/#26213 (Found today searching for Schiffmann + Albino)
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| (4) Posted by Michael McDowell [Sunday, Apr 23, 2017 21:24] |
The problem is interesting for its date. I wasn't aware of any problem showing a Schiffmann defence earlier than Anderson's 1917 Good Companions problem.
Hope you found 205822 in yacpdb. I'd be interested to know of other examples.
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| (5) Posted by Zalmen Kornin [Sunday, Apr 23, 2017 21:48]; edited by Zalmen Kornin [17-04-23] |
Of course I found Yours 1983 S+A - it's a fine composition, Michael! What about L Kubbel "Swiat Szachowy" 1929 1R6/8/1b3BpK/3pq3/5N2/pr1B1p2/bk1P1R2/N3Q3 #2 !?
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| (6) Posted by Zalmen Kornin [Monday, Apr 24, 2017 15:59] |
Some pin mates, but what's do the engine recognize as a Schiff??! Maybe 1...Qc3, but this is not a self-pin, just a movement of an already pinned piece (The same about Flood & Fletcher "The Problemist" 1963 g1/e2)
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| (7) Posted by Hauke Reddmann [Saturday, Apr 29, 2017 11:15] |
@Zalmen: A movement of an already pinned piece IS a Schiffmann (2nd form)
if the threat now fails by unpin and the mate uses the pin.
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| (8) Posted by Zalmen Kornin [Saturday, Apr 29, 2017 19:21] |
OK, @Hauke ... I forgot my @Breuer 1800 BzIdS
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| (9) Posted by Hauke Reddmann [Monday, May 1, 2017 17:41] |
Consider buying the Degener ("Von Ajec bis Zappas"), a compendium
of #2 themes, which (unlike the Breuer) fits into any jacket :-)
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| (10) Posted by Zalmen Kornin [Monday, May 1, 2017 21:45] |
...and yet another someone else discovered (sixty years later) the whole Funk 2-er http://www.yacpdb.org/#249871
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