Originals
Vol II, No.13-14, Spring/Summer 1997

13-14:
#2
#3,n
h#2
h#3,n
s#2,n
15:
#2
#3,n
h#2
h#3,n
s#2,n
16:
#2
#3,n
h#2
h#3,n
s#2,n
17-20:
#2
#3,n
h#2
h#3,n
s#2,n
21-24:
#2
#3,n
h#2
h#3,n
s#2,n

Original Twomovers

252. Victor Kolpakov
Russia







#2 5+7
1.Qe5:? ~ 2.Qh8/Qe4:/Qa5#
1... Bb4: 2.Qe4:#
1... Sc5 2.Qh8#
1... Sd6 2.Qa5#
1... Bf4!
1.Qg1! ~ 2.Qa1/Qg8/b7#
1... Bb4: 2.b7#
1... Sc5 2.Qg8#
1... Sd6 2.Qa1#

Fleck theme. [Author] Free-form Fleck with three changed mates. [Milan Velimirovic]


253. Srecko Radovic
Jugoslavia







#2*v 7+6
*1... Rg2,ed3 2.Qf6,Qf4#
1.Qd1? (~), 1... g5!
1... Rg2,ed3 2.Qa4,Qg4#
1.Qh1! ~ 2.Qe4:#
1... Rg2,ed3 2.Qh8,Qh4#
1... Kd3: 2.Qd1#

Simple Zagoruyko 3x2 after a flight-stopping (either by self-block or by line-openning) black defences, with thematic key granting the flight and leading to a nice pin mate after the BK uses it. Interestingly, removal of BPg6 would reverse try and key move (1.Qh1? Rg2!, 1.Qd1!) and give a Meredith position, but it would lead to the inferior actual play. [Milan Velimirovic]


254. Miodrag Mladenovic
USA







#2* 9+6
1... Ke5,Kc5: 2.Bg7,Be3#
1... S~,Se5! 2.Sf3,Sb5:#
1.Sd5! (~)
1... S~,Se5! 2.Bg7,Be3#
1... Ke5,Kc5: 2.Qc4:,Qe4#

A miracleous Ideal Ruchlis after a pair of BKs flight and a pair of Black Correction defences. This unbelievely economical setting makes surprisingly unused WSd2 clearly tolerable, and I am sure that even with this pretty invisible flaw the problem would have deserved the ranking between top five in the 5th WCCT. [Milan Velimirovic]


255. Efren Petite & Jose Antonio Coello
Spain







#2*vv 11+4
*1... Ke4:,Kf5: 2.Qg4,Qf3#
1.Re7? (~), 1... de4!
1... gf5,Kf5: 2.Bb8,Qf3#
1.Rf7? (~), 1... gf5!
1... de4,Ke4: 2.Bb8,Qg4#
1.Bb8! (~)
1... de4,gf5 2.Rf7,Re7#
1... Ke4:,Kf5: 2.Qg4,Qf3#

Banny theme with changed thematic mates. However, flight-taking tries are a very cruel method of realization. [Milan Velimirovic]


256. Miroslav Subotic
Jugoslavija







#2vvv 10+6
1.Bf4?(A) ~ 2.Sh4#(B), 1... Qf4: 2.Sgf4:#(C), 1... h4!
1.Bh4?(D) ~ 2.Sgf4#(C), 1... Qh4: 2.Sh4:#(B), 1... f4!
1.Sh4?(B) ~ 2.Bf4#(A), 1... Qh4: 2.Bh4:#(D), 1... Qe3:!
1.Sgf4!(C) ~ 2.Bh4#(D), 1... Qf4: 2.Bf4:#(A)

Three out of four possible moves by front pieces from white halfbattery are present in each phase eithar as first move, threat or mate, but, like most of the modern reversal themes, it looks pretty mechanic, especially the capturing mates. It is good that tries are defeated by three different moves. [Milan Velimirovic]


257. Gyorgy Bakcsi
Hungary







#2v 9+8
1.Sc3:? ~ 2.Qd5#, 1... Se6!
1... Sf4,Sf6:,Se4 2.Bd4,Bd6,Re4:#
1.e4! ~ 2.Qc3:#
1... Se4:,Se6 2.Bd4,Bd6#
(1.Qd1?/Qc4? ~ 2.Qd4#, 1... Qf4!)
(1.Bb6? ~ 2.Bc7#, 1... Se6!)
(1.Sb6? ~ 2.Qd5/Qc3:/Sd7#, 1... Se4!)

White interference mates transferred from try to actual play. This matrix is well known and has produced many even complete Ruchlis positions in the past. [Milan Velimirovic]


258. Milan R. Vukcevich
USA







#2* 11+7
*1... Rc4+,Rd4,Re4,Rf4,Rg4: 2.bc4,Qd4:,fe4,Sf4:,fg4#
1.Rb4! ~ 2.f4/Rd7#
1... Rb4:,Bb4:,Qb4: 2.Rd7,f4,Rh5:#
And now, five-fold Rukhlis:
1... Qc4+,Qd4,Qe4,Qf4,Qg4 2.bc4,Qd4:,fe4,Sf4:,fg4#

This idea was shown with black Bishop and Queen by van Dijk and by myself, and in one of YU-championships I realized it with two black Rooks. However, all examples had three or four variations. Here we have five variations, and all Queen moves defend both Novotny threats. [Author]

There is a dual after 1... Qe7 2.Qd4/Sf4#. It can be simply corrected by adding wPf6. [Miodrag Mladenovic]


259. Mihajlo Stojnic
Jugoslavija







#2vv 11+8
1.ef4?(A) ~ 2.Sg4:#, 1... Sc3!(a)
1... Se3 2.Qe3:#
1.c3?(B) (~) , 1... Se3:!(b)
1... Sc3: 2.Bc3:#
1.Bd4! (~)
1... Sc3(a) 2.ef4#(A)
1... Se3:(b) 2.c3#(B)
(1... c3,fe3,f3 2.Rf1,Qf8,Sg4:#)

Theme Vladimirov with changed mates after black thematic defences in both tries. [Author]

A masterpiece! This form of theme Vladimirov have been my unreachable goal for last twenty years. I am happy that finally somebody succeeded, and even more happy that it has been done by super-talented young author. As far as I concluded, the position is "patent", every single unit must be exactly on its location in the diagram position! I simply cannot find enough superlatives! [Milan Velimirovic]

Ideal form of theme Vladimirov. [Zivko Janevski]

Certainly the best twomover in this issue. The best Vladimirov I have ever seen. The only minus in this excelent problem is minor dual in try 1.c3? Sb2: 2.Rb2:/Qb2:# [Miodrag Mladenovic]


260. Zoran D. Nikolic
Jugoslavija







#2v 10+10
1.Qe7? ~ 2.Qg5:#, 1... Bf6!
1... Qc1,Ra6:,Se4,f6,Bd2/Bf4 2.Ra5:,Qe5,Qe4:,Qe6,Qf7:#
1.Qd2! ~ 2.Qg5:#
1... Qc1,Ra6:,Se4,f6/Bd2:,Bf6 2.Qa5:,Qd5,g4,Se7,Qf4#

Four changed mates between set and actual play. [Author]
There is an extra half of change after Bg5 moves along c1-h6 diagonal. A very good free-change problem by the promising author. [Milan Velimirovic]

I think the better position is with bP on b3 instead on h3. This pown just prevents dual after 1... Sh3 2.g4/Qc2#. [Miodrag Mladenovic]


261. Milan R. Vukcevich
USA







#2 11+9
1.Qa4! ~ 2.b5#
1... Rd4: 2.Se4# (2.e4?)
1... Bd4: 2.e4# (2.Se4?)
1... Sd4: 2.Qc6# (2.e4?, 2.Se4?)
1... Sc5 2.bc5#
1... Sa6/Sb5/Sd5 2.Qb5#
1... Qe7: 2.e3#
1... Ra5: 2.ba5#

Complex self-blocks with dual avoidance motivated by unpin of black. Also, thematic self-pin 1... Sd4 2.Qc6#. Constructionally interesting is the handling of brutal tries: 1.Sc~+?? Kb5 2.e5# but 1... Qc2! (and 2.e3 is not possible because of the pin) and 1,Se4+!? Kb5 2.e3# (change) but 1... Kd4:!. [Author]

A very complex mating strategy: battery mates must close the BQ diagonal simultaneously closing the WR line. It is possible after the black self-blocks on d4 (unusual white interference along the line aiming toward the BK) but with the carefull selection of the battery used due to the simultaneous unpin of black piece. The most refreshing classic complex resembling on style of the great Adabashew, but anyway looks very original to me. [Milan Velimirovic]

This problem is dedicated to the particpants of YU-championship 1997.


262. John M. Rice
England







#2v 10+12
1.Qc4? ~ 2.Kd5#, 1... Bf4!
1... b3,Bc4:,Sf4,Sc7 2.Qf7,Kc4:,Ke4:,Kc5#
1.Qe4:! ~ 2.Kd3#
1... b3,Bc4,Sf4,Bf4,Sc5,Re4:+,Be3:+ 2.Sd5,Kc4:,Qe5,Qg6:,Kc5:,Ke4:,Ke3:#
(1... Bb1 2.Kc4/Kd5/Sd5#)

Interesting mechanism for two-phase changed play involving the active role of WK and good self-pinning key followed by dual-avoidance interference unpins. The only flaw is triple mate after (unimportant) 1... Bb1 - which could have easily been eliminated if the whole position (with Ba1-->b2 & Ph3) was moved one row down. [Milan Velimirovic]

However, subsequently author disproved above comment: "May I point out an error on p.135? In your comment on my 262 you write that triple after 1... Bb1 could have been avoided, but in fact your suggestion ruins the problem, as 1... b3 ceases to be a defence. I'd be grateful if you could mention this in a subsequent issue, so that readers will realize that the composer did know what he was doing after all!"


263. Miodrag Radomirovic
(after H. Bartolovic)







#2 13+9
1.Sc4! ~ 2.Rd4:#
1... Rc4:,Sec4:,Sdc4:,bc4 2.Re5,Sf4,Qa8,Qc6#
1... Re4:,fe4,Se4: 2.Sb6,Be6,g8Q/B#
1... Kc4:,Ke4:,Se~ 2.Qb3,Bf3,Sb6#
(1.Sc6? Re4:!)

Seven self-blocks on two flights and two additional mates after BK moves to thematic fields. [Author]

Excellent re-make of famous Bartolovics task (see diagram below). Improvements are: (i) lighter position - three pieces less, (ii) better key - gives a flight, and (iii) two new mates after BK flights - in exemplar problem one flight is met by two white replies which is unpleasant although one is already a threat. Note that 1... Sec4! is secondary defence for random removal 1... Se~. [Milan Velimirovic]

I would prefer bPb6 instead of wPc5. Otherwise construction is perfect. [Miodrag Mladenovic]

Wrong! Without WPc5 defence 1... bc4 would not be a self-block since 2.Qc6# also guards c4!

Hrvoje Bartolovic
1-2.pr Cik 1968







#2 12+13
1.Rc7:! ~ 2.Re4:#
1... Qd4:,Rbd4:,Red4:,Sd4: 2.Rb7,Ra7:,Rf5,Sd3#
1... Rf4:,gf4,Sf4: 2.Sc6,Sef3:,h8Q/B#
1... Kf4:,Kd4: 2.Rf7,Re4:/Sf3:#
 
 

264. Miodrag Radomirovic
Yugoslavia







#2 16+11
1.cd6(ep)! ~ 2.Rf~#
1... Rc2:,Rd3:,g3,Rh4:,Rg5:+,Qe3+,Bc8:,f6+ 2.Rf2,Rd3:,Rg3:,Rh3,Rf5,Re3:,Rf7:,Rf6:#
1... gf3,Qc5+,Qd4+,Qg1,Qb5:+,Sc7: 2.Qf3:,Rc5:,Sd4:,Sa5:,ab5,Rb6:#

14 different mates after en passant key. Task. Last black move was d7-d5. Position is legal as prooved by the following sequence of captures: Pb5:Sa6 ... Pe3:Bd4 ... Pb1Q ... Qc5 ... Pd4:Qc5 ... Pg5:Ph6 ... e1Q ... Qg5 ... Pf4:g5. [Author].

Elsewhere in this issue can be found the article Low theme with another task by this very productive task-maker. [Milan Velimirovic]


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