451. Tomislav Petrovic Yugoslavia
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1... bc6(ep) 2.gf1B 0-0-0#
Vallodao theme in only three halfmoves. Task.[A]
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452. Alexander Grin (+) Dedicated to Marjan Kovacevic
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a) 1.Kb8 Ba5 2.Kc8 Rd8#
1.Kb8 Rd8+ 2.Kc7 Ba5#
b) 1.Ka7 Bd8 2.Ka6 Ra5#
1.Ka7 Ra5+ 2.Kb6 Bd8#
Two symmetric pairs of solutions with reciprocal white moves, each ending with model mate.[MV]
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453. Victor Kolpakov Russia
h#2 |
Zeroposition
a) WKe2-->d3
b) WBc6-->d5
c) WKe5-->g4 |
3+3 |
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a) 1.Kd5 Bd4 2.Qd6 Bc4#
b) 1.Ke4 Be3 2.Qe5 Bd3#
c) 1.Be4 Kf1 2.Kf3 Be2#
Three chameleon echo models.[MV]
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454. Vladan Vuckovic Beograd
h#2 |
b) +WRh4
c) +WBf3 |
4+2 |
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1.hg2 Sh3 2.g1S Sf2#
1.h2 Kh3 2.hg1R Kg3#
1.h2 Kh3 2.hg1B g3#
Three different black promotions followed with mate by the white piece of the same kind (BS/WS, BRWR, BB/WB). Miniature.[A]
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455. Stanko Milenkovic Yugoslavia
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B--> *1... Sd4 2.Rd2 Rg1:#, 1.Rc3 Rg2 2.Rc1 Rd2#
W--> *1... Rd6 2.Sg5 Rh6#, 1.g5 Rf3: 2.Rg4 Rh3#
This both-side "Black to play" duplex rouses the nostalgy for good old tempo-play helpmates.[MV]
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456. Slobodan Saletic Yugoslavia
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*1... Sg7 2.e5 Sf6#
1.e5? ?? 2.e4 Sf4#
1.Be5 Sg3 2.Rd4 Se3#
Umnov theme with ideal mates in set and actual play.[A]
The move 2.Rd4 cannot be considered as "Umnov" (in spite of the author's claim) because it is the arrival of the piece of the same colour (not a bicolour arrival as required by "Umnov" theme).[ZG]
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457. Vladan Vuckovic Beograd
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1.Bf7: g8S 2.Bd6: d5#
Two white knights are replaced by two black bishops. But a new white knight is born... Excidental twin: WK on h5: 1.Kf6 Sh6 2.Be6 Se8#.[A]
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458. Mihailo Stojnic Yugoslavia
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1.Bc3 Bd4+ 2.Ka1: Rg1#
1.Rc3 Rg3 2.Ka3 Bc5:#
Problem shows following combination: Black unpins white and does the anticipatory self-pin, simultaneously unipnning the mating piece. Pin-model mates, black Leibovici interferences. Two pairs of changed functions of black and white units (WR & WB, BR & BB) and complete D&L analogy of two solution. Meredith with no white pawns. Transformation of white direct battery.[A]
Reciprocal "Leibovici" interference and complex selfpins.[ZG]
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459. Valery Barsukov Russia
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a) 1.Qf4 (1.Re5?) Sf3 2.Re5 Qa3#
b) 1.Rf6 (1.Qf4?) Kc2: 2.Qf4 Qc5#
Model mates.[A]
Anticritical moves, but not quite consistent.[ZG]
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460. Vladan Vuckovic Yugoslavia
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1.Ke5 Bb1 2.Sd5 Sc6#
1.e5 Bg8 2.Sh3 Bh7#
BSf4 is set free twice (first by BK, then by BP) in order to cut the line for BQ (first time diagonal, then lateral). Model mates.[A]
Different placement of BK in pure and economical, but not ideal mates (since some black pieces are not used in the mating positions).[ZG]
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461. Valery Barsukov Russia
h#2 |
b) WPd2-->f2
+c) BPc4-->g5 |
5+6 |
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a) 1.Sb5 d4 2.Kd5 Sc3#
b) 1.Sd5 Sg3+ 2.Ke5 f4#
c) 1.e5 f3+ 2.Kf5 Sd4#
Model mates.[A]
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462. Alexander Grin (+) Dedicated to Marjan Kovacevic
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1.0-0-0 Kb6 2.Rd7 Ra8#
1.Rh8 Rh1 2.Kf8 Rh8:#
1.e6 Kd6 2.Kd8 Ra8:#
BK is mated on three different squares on the 8th rank. Simple model mates.[MV]
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463. A. Ivunin & A. Pankratyev Russia
h#2 |
b) WBe4-->e5
c) WKd4-->h2 |
4+8 |
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a) 1.Rh5: Sg4 2.Rd5 Be3#
b) 1.gf6 Be3+ 2.Kd5 Bf3#
c) 1.Rc1: Bf3 2.Rg1 Sg4#
Cyclic Zilahi with model mates, but with two ways of twinning I don't like at all: in (b) the BB is moved to a different colour square, while in (c) BK goes to a distant square.[MV]
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464. V. Zheltonozhko & A.Pankratyev Russia
|
1.Bc6: Qf5 2.Qb4: Qd3#
1.Sc6: Qh8 2.Qd5: Qc3#
Already published in "Falanga" 1996 and rewarded with a Commendation by the judge Toma Garai (with Sb7-->b6, +Be7, +Pf4, +Pg4 and Kg3-->h2).[ZG]
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465. Mihailo Stojnic Yugoslavia
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1.Kd6 Bc4 2.Rf3 Rd4#
1.Kb7 Rg2 2.Bd4 Bf3#
Black unpins one of two pinned black pieces which subsequently opens one the white line and closes the black line. Meanwhile white interferes with black line-mover and mates utilizing the retained pin of another black piece. Complete D&L analogy between two solution and reciprocally changed roles of all thematic black (Ra4&Qh1, Rf7&Be5) and while (Tg4&Be2, Rh7&Bh2) pieces. Also, reciprocally changed destination squares for black and white second moves. No white pawns.[A]
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466. Tode Ilievski Macedonia
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1.Sd5: R8h4+ 2.Qd4 Rc1#
1.Sd4 R1h4 2.Bd5: Rc8#
Two double-pin mates.[MV]
I would appreciate if both selfpins on d5 were on the same move.[ZG]
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467. Michal Dragoun Czech Republic
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1.Qe8: de8Q 2.Rf8: gf8Q#
1.Qf8: gf8S 2.Re8: de8S#
Reciprocal change of capturing pieces on e8 and f8, substitution of white units by two other different pairs.[A]
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468. Aleksandr Pankratyev Russia
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1.Qd6: Be3+ 2.Kd5: c4#
1.Sge7: c3+ 2.Ke5: Bf4#
Captures of white pieces to allow the BK move. Pitu that second mate is not a model.[MV]
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469. Albert Grigoryan Armenia
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1.Rc7 Qb6: 2.Bd5 Qa5#
1.Qc5 Qg3 2.Be2 Qe1#
Two indirect unpins of WB, but one expects that subsequent pin of the unpinning piece should be utilized in the mating position thus giving greater role to the WR[MV]
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470. Anatoliy Stepochkin Russia
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*1... Sf5 2.0-0-0 Sd6#
1.Se7:+ g6 2.Rd8 Sc7#
Old-style set-play helpmate with surprising capture of WS with a discovered check.[MV]
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471. Eliahu Fasher Israel
h#2 |
b) WRa1-->c1
c) WRa1-->d1
d) WRa1-->e1
e) WRa1-->h1 |
7+8 |
|
a) 1.e1R Ra5 2.Re6: Bd3#
b) 1.Ke6: Rc6:+ 2.Kd7 Rd6#
c) 1.Ke6: Ba6 2.Re5 Bc8:#
d) 1.Ke6: Be2: 2.Rd5 Bg4:#
e) 1.Rg6: Be2: 2.Kg5 Rh5:#
Interesting twinning with five different mates. Pity that three times black takes the same first move.[MV]
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472. Aleksandr Pankratyev Russia
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1.Kb2 Qd5 2.Re4 Qb3#
1.Kb3 Qe4 2.Sf3 Qc2#
Unpins of WQ by unpinned black pieces. Wouldn't it be better if there were two dublings (i.e. with Rf2-->h2 and 1... Qg2 in one solutions) and consequently two gate-openings?[MV]
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473. Tode Ilievski Macedonia
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1.Be8: 0-0-0 2.ef6 Rhe1#
1.Qe8: 0-0 2.ed6 Rae1#
Active elimination of WQ and castlings.[ZG]
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474. Valery Barsukov Russia
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1.gf2+ Kd1: 2.Ke3 Sc2:#
1.ab2 Ba7+ 2.Kc3 Sd5#
1.gf3 Be5+ 2.Ke4 Bd3#
Model mates.[A].
Remote blocks and model mates.[MV]
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475. Tony Lewis England
h#2 |
b) BPa4-->g6
+c) WRe4-->e5
+d) WKd4-->f4
+e) WBc7-->c5
+f) WRe5-->e4 |
7+12 |
|
a) 1.Kd2 Qh6 2.Rd1 Sf1#
b) 1.Kf3 Qa3 2.Rf2 Sc2#
c) 1.Kf3 Qd6 2.Kf4 Rf5:#
d) 1.Kf2 Qb6 2.Rf1 Sd1#
e) 1.Kd3 Qf6 2.Kd4 Rd5#
f) 1.Kd3 Qf6 2.Kd4 Rd5#
GB Entry for 5th WCCT - Not placed.[A].
Six times WQ abandons one and creates another battery. However, the initial battery is not convincing since 2.c5 is the least expected mating move for the solver.[MV]
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476. Jean Haymann Israel
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a) 1.Rf3 (Rg3?) Sd3 (Se2?) 2.Qg6 Sf6#
b) 1.Qe6 (Qg6?) Sc7: 2.Rb2 Sg6# (Sd5?)
Mutual preventive unpin of Rb3 and Qf5, underlined by thematic tries. An idea I have been "obsessed" with as exemplified by two problems cited (for other reasons) in Mr. Janevski's article in No.8-9: p.298, without thematic tries (diagram 476a: [a] 1.Se3 Rf6 2.Qb4 dc6#, [b] 1.Qe5 d6 2.Sd6: Rb2# ), and p.280 with hidden thematic tries 1.Sb3? Rg12.Sd2 ??... and 1.Sd2? Bf3 2.Sb3 ?? (diagram 476b: 1.Sc3 Bf3 2.Sd7 Rb6#, 1.Sd3 Rg1 2.Sg3 Bd5#)... Without tries the unpinning moves are not convincing.[A]
Extraordinary battery-pin complex with accidental dual avoidance.[ZG]
ign=top>
476a. J. Haymann Boletim da UBP 1994
a) 1.Se3 Rf6 2.Qb4 dc6#, b) 1.Qe5 d6 2.Sd6: Rb2#
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476b. J. Haymann Variantim 1989
1.Sc3 Bf3 2.Sd7 Rb6#, 1.Sd3 Rg1 2.Sg3 Bd5#
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477. Michal Dragoun Czech Republic
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a) 1.Be2: Ke5+ 2.Kc3: Kf5:#
b) 1.bc3 Kc4+ 2.Ke2: Kc5:#
Captures of both white knights with different royal battery transformations.[A]
Consecutive captures and consecutive white battery play.[ZG]
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478. Tomislav Petrovic Yugoslavia
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a) 1.hg3(ep) 0-0 2.cd1S Rf3:#
b) 1.hg3(ep) Be2: 2.cd1B 0-0#
Vallodao theme in both solutions.[A]
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