281. Evgeny Tischenko Ukraine
| B-->: *1... Sd8 2.Qf7 Se6#, 1.Qc8 Se5 2.Ke8 Rc8:#
W-->: *1... Qc8 2.Sd8 Qa6#, 1.Sd6 Qc8 2.Se8 Qa6#
Two black to play phases, with no anticipation according to Mr. S. Saletic. To my opinion, if rotated 180 (also correct), position would look more interesting. [Milan Velimirovic]
Alas, Marko Ylijoki (Lahti, Finland) proved opposite:
Unto Heinonen, 1.pr in 3th Jubilee-tournament 1971-73
White: Kc8, Dd8, pd7
Black: Kh8, Rg8, Nf6
Duplex-Helpmate in 2 moves, set-play
Solutions:
1.- Df8 2.Ne8 Dh6#, 1.Re8 dxe8D+ 2.Ng8 Dxg8#
1.- Ne8 2.Dc7 Nd6#, 1.Df8 Nd5 2.Kd8 Rxf8#.
(Problem has been published for examble in "100 år Finländska miniatyrer" [100 years Finnish miniatures] almost 15 years ago.)
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282. Alexander Grin Russia
| 1.Sd3+ Kd1 2.Ke3 Bc5#
1.Se4 Rb6 2.Kd5 Rd6#
Two elegant and economically realized pin-model mates. Mr. Janevski is afraid of possible anticipation, but (so far) did not provide the proof. [Milan Velimirovic]
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283. Arpad Molnar Hungary
| a) 1.S5f3 Qh6 2.d6 e4#
b) 1.S1f3 e4+ 2.Kf4 e3#
Square vacation by unpinned white men in order to clear the way for WPe2 single- and double-step mate. The cook-stoper BP is placed to the best square (d7, not i.e. on b6) to have a tempo move choice 2.d5??. [Milan Velimirovic]
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284. Mihajlo Milanovic Jugoslavija
| a) 1.Rd6: Sc3 2.Rb6 Ra4#
b) 1.Bb5: Bc5 2.Ba6 Bb6#
c) 1.Sb4: Bb4:+ 2.Ka4 Sc3#
Cyclic change of functions of 3 white pieces (capture, gurad, mate) with cyclic change of black captures (BR captures WB, BB - WS, BS - WR). Forsberg twins. [Author]
Combination of themes: Cyclic Zilahi, cyclic changes of white capturing and black captured pieces and Forsberg twins in economic position. [Zivko Janevski]
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285. Efren Petite Spain
| a) 1.Sh6 Se1 2.Bf5 Bf3:#
b) 1.Bh3 Sb4 2.Sg4 Bg6#
The action of white piece unpinned in the first move is delayed until the mating move. The black play in two solutions are not quite corresponding. [Milan Velimirovic]
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286. Tode Ilievski Macedonia
h#2 |
b) WPe4-->c5
c) WSc8-->d7 |
8+5 |
| a) 1.Ke4: Rh4+ 2.Ke5 Rb5#
b) 1.Kf5: g6+ 2.Kf6 Rb6#
c) 1.Ke3 Rh3+ 2.Kd4 Rb4#
Three times BK walks to the long diagonal to receive a pin mate by pinned white Rook. [Milan Velimirovic]
Problem is correct also without four pieces from lower left corner of the board. The only function of those pieces is to add pin mate in each solution. I do not think its worthy to add four pieces just for pin mate. [Miodrag Mladenovic] ... not quite because position (a) would be cooked, but with few changes Mishas suggestion is true, i.e.: Kh8 Rh5 b8 Sc8 Pe4 f5 g5 - Kf4, h#2 (7+1) with same twins and solutions (ed. note).
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287. Tode Ilievski Macedonia
| 1.Qd7 Bb6 2.Kd6 Bd4#
1.Qe7 Bd6+ 2.Kf6 Bf4#
Anticipatory self-pin of BQ in two analogous lines. WQ is probably the most economical pin-piece choice, but her strength required the pin-doubling in black defensive formation. [Milan Velimirovic]
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288. Valery Barsukov Russia
| 1.Bd4 Be8 2.Rc6 Sd4:#
1.Sd7 Se5 2.Sf3 Bd7:#
Model mates. [Author]
Combination of white half-pin, sacrifice of black pieces and model mates. [Zivko Janevski]
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289. Zivko Janevski Macedonia
| a) 1.Kb6 Be3 2.Rf5 Rb1#
b) 1.Kd6 Rd3 2.Bf2 Bf4#<[>
Direct unpin of black by black, black direct combined pin, line-opening, pin mate, direct black self-interference. [Author]
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290. John M. Rice England
| 1.Sd4: Rg7 2.Sc2 Rg3#
1.Sa3 Se5+ 2.Kd4: Sg4#
1.Ra8 Sc6+ 2.Kc4: Sb4#
The theme will be instantly recognised by those who took part in the 5th WCCT. The point of the problem, apart from the switch of batteries, lies in the differing functions of BSb5. In the solution this S captures a white unit and then blocks a square, in another it simply has to get out of the way, and in the third it stays where it is and gets pinned by a K-move. The white economy is OK, but there are a couple more black units than I would have liked. [Author]
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291. Arpad Molnar Hungary
| a) 1.Sg3 e4 2.Be2 Sh3#
b) 1.Bf5 Se4 2.Sd2 e3#
Interesting combination of black and white temporary halfpins. Also interesting is the question: can it be (or has it been) done without twins? [Milan Velimirovic]
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292. Vyacheslav Kopaev Russia
h#2 |
b) BKa4-->b5
c) BKa4-->e8
d) BPb6-->b5
e) BKa4<-->WPa2
f) (e)+BRh2-->a1 & -BPc4
g) BKa4-->g7
h) (g)+BRg1-->h8
i) (h)+BPe7-->h7 |
6+11 |
| a) 1.Qa8 Qb7 2.Qa6: Qa6:#
b) 1.Qb7 Qc6+ 2.Ka6: Qa4#
c) 1.Qc6 Qd5 2.Qd7 Qg8#
d) 1.Ra1 Qb1 2.Ra2: Qa2:#
e) 1.Rb1 Qc1 2.Ka1 Qa3#
f) 1.Rc1 Qd1 2.Kb1 Qb3#
g) 1.Rh7 Qh6+ 2.Kh8 Qf8#
h) 1.Rh6 Qh5 2.Kh7 Qf7#
i) 1.Rh5 Qh4 2.Kh6 Qf6#
Three sets of triple Magnet. An imposant conception, however with pretty chaotic twinning. [Milan Velimirovic]
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293. Tode Ilievski Macedonia
| a) 1.Kc4+ Be3 2.Se4 Rd4#
b) 1.Kd4+ Bb3 2.Sc7 Qc4#
Checks to WK by BK, unpin and postponed pin of black pieces, gate-opening and black interferences. [Zivko Janevski]
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294. Tomislav Petrovic Yugoslavia
| *1... de6(ep) 2.fe6+ Se6:#
1.fe3(ep) fg4 2.e2 Rf4#
As far as I know, there are so far only two examples with en passant first move both in set and actual play. [Author]
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