Originals

Solutions to new originals, group "A"
(with authors' comments)

A1. Tony Lewis
1... Sb~,c5 2.Sd2,Sd2#
1.Qd2? (~)
1... Sb~,c5 2.Qd4,Sa5#
1... Sa3:!
1.Kd2! (~)
1... Sb~,c5 2.Qc3,Qb5:#
1... f2,d5 2.Be2:,Se5#
Mutate try (1.Qd2?) is (non-threat) thematic try in a mutate.[A]

A2. Robert Burger
1Rc7? (~2Bc5) --dSe6 2Be5 --Sc6!
1Re7? (~2Be5) --Sc6 2Bc5 --fSe6 2Rd7 --dSe6!
1Re5? (~2Se4, e8) --Rh2+!
1Rc5! (-2Se8) --Sc6 2Rd5 --dSe6 2Se4
See author's story "Elevators" accompanying this problem.

A3. Abdelaziz Onkound
1.gh5?(A) ~ 2.Qf5#(B), 1... hg5!(a) [2.Qh5:??(D)]
1.Qf5?(B) ~ 2.gh5#(A), 1... hg5 2.Sg5:#, 1... hg4!(b) [2.Qh6:??(C)]
1.Qh6:?(C) ~ 2.Qh5:#(D), 1... Kg4:!(c) [2.Qf5??(B)]
1.Bc8! (~)
1... hg5(a) 2.Qh5:#(D)
1... hg4(b) 2.Qh6:#(C)
1... Kg4:(c) 2.Qf5#(B)
1... d7~ 2.gh5#(A)
(1... h4 2.Sf2#)
Themes Urania (three tries and actual play), Banny (second and third try) and Hannelius (first and third try).[A]

A4. Salvador Bosch Perez
1.Sd7! (~)
1... Kc4:,Ke4: 2.Rc5:,Qf5:#
1... Q~,Qf6:+,Qe4: 2.Qe5,Sf6:,Rc5:#
1... R~,S~ 2.Rd4:,Rd4:#

A5. Zoran Gavrilovski
1... Be5(x),Be6:(y) 2.Qf3:(A),Bc2(B)#
1.Sc6? ~ 2.Qg4#
1... Se2!
1... Be5(x),Kf5,Sd5 2.Qe5:,Qf3:(A),Bc2#
1.Sd3! ~ 2.Qg6#
1... Be6:(y),Kd3:,e2 2.Sc5,Bc2(A),Qf3:(B)#
Distributed change and transference of mates.[A]

A6. Milan R. Vukcevich
1.b3? ~ 2.S3d5#
1... Kc5 2.Sc2#
1... Kc3 2.Qd2:#
1... Bf4/Bg3: 2.Qd2:#
1... Sc4:!
1.Qf8! ~ 2.S7f5#
1... Kc5 2.Sc6#
1... Ke3: 2.Qf4#
1... Bd6 2.Re4#
Self-pin by the BK move with unpin-anticipation in try and actual play.[A]

A7. Vyacheslav Kamenskiy
1.Bh1! (~)
1... Kf5 2.Bf3 Ke6 3.Bg4#, 2... Kf4 3.Rf6:#
1... f5 2.Rg2 Ke4 3.Rg4#

A8. Milan R. Vukcevich
1.Bf4?(A) ~ 2.Qe5+(B) fe5 3.Re5:#
1... Be7: 2.f3(C) Ra5:,Bd8 3.Se7:,Rd2#
1... Ba5: 2.Qe4+(D) fe4 3.Se7#
1... Re6!
1.f3!(D) ~ 2.Qe4+(D) fe4 3.fe4#
1... Be7: 2.Bf4(A) Ra5:,Bd8 3.Se7:,Rd2#
1... Ba5: 2.Qe5+(B) Kc6,fe5 3.Qd6:,Se7#
(1... Rd7: 2.Qd7:+)
A four-fold cycle of keys and second moves. Is this a Djurasevic theme, or did I miss again?[A]

A9. Hans Peter Rehm
1.Sc4? Bxd5! 2.Se5+ dxe5,
1.Ba2? too slow, hence
1.Ra1 (thr. 2.Rf1+) Rxa1+ 2.Ba2! Rg1! (2...Rxa2+?
3.Kb8) 3.Sc4 (thr. Sxd6#) Bd5 4.Se5+!dxe5 5.Bxd5,
4...Ke6 5.Re8# If 1...c1Q then 2.Rxc1 Bxd5 3.Rf1+ etc.
As far as I know this is the first presentation of a paracritical move played in Lepushütz form. It is possible to make the problem more difficult: -c2d3a8h2 +white Pd2 +black sh2 pb7d4 since the solver is reluctant to leave the free line a3-h3 by Ra3 and he will loose some time to find 1...Rxg7 2.Bxe6+ Kxe6 3.Re1+ Kf7 4.Sd7! But there are minor duals, and I do not like unthematical rather difficult byvariations like 1...Rxg7. So I prefer the more artistic version as given above. For a solving contest the more difficult version would be better.[A]

A10. Sally Lewis & Tony Lewis
a) 1.Ba4 Rd4 2.Bc2 Bb2#
b)1.Be3 Be2 2.Bd2 Rc4#
Loss of tempo by black with Ideal checkmates.[A]

A11. Pier Giorgio Soranzo & Vito Rallo
1.Kf5 Re7: 2.Rg6 Re5#
1.Ke6 Rd8 2.Rf7 Sd4#
Meredith con schiodature bicolori e matti modello.[A]

A12. Mihailo Stojnic
1.Rc7 Qg4 2.Kc8 Ra8#
1.e6 Rb7: 2.Ke7 Qg5#
A13. Mircea Manolescu
1.Qc3+ Re5+ 2.Kd4 Rd5#
1.Qd4+ Rf6+ 2.Ke5 Rf5#

A14. Zoran Gavrilovski
a) 1.Se1:+ Kd4+ 2.Ka4 Kc3#
b) 1.Sf4:+ Kc3+ 2.Ka5 Kd4#

A15. Gyorgy Bakcsi
a) 1.Rb3: Sd2 2.Rc3: Bc3:#
b) 1.Bg7: Sf2 2.Bc3: Rc3:#
Zilahi theme.

A16. Valery Kirilov & Nikolay Pletenev
a) 1.Kd7 Sd6 2.Rc7 Qc7:#
b) 1.Kb7 Sd2 2.Rc8 Qc8:#
c) 1.Kb5 Sb6 2.Rc5 Qc5:#
d) 1.Kd5 Sd7 2.Rc6 Qc6:#
A17. Zivko Janevski
1.Rg2 Rf6:+ 2.Kg4 Sh2#
1.Sg2 Ra7 2.Kg6 Sh4#
1.Sc6 Rg7 2.Ke6 Sd4#
Three-fold unpin of WS and three-fold anticipatory self-pin of black. Each line ends with model mate.[A]

A18. Franz Pachl
a) 1.Qf5 Ra7 2. Rh6 Be5: 3.Kg6 Rg7#
b) 1.Rf5 Ba7 2.Bg3 Re6: 3.Kf4 Be3#

A19. Salvador Bosch Perez
1.Ra1 Qb1 2.Kf2 Qh1 3.Rf1 Qh2#

A20. Tode Ilievski
a) 1.Ra4: Bc6 2.Sf3 Be8 3.Rd4 Bg6#
b) 1.Bb7: Rc4 2.Sf4: Rc3 3.Bd5 Re3#

A21. Toma Garai
a) 1.Be5 Sf7 2.Rd4+ Kc3+ 3.Kf5 Sh6#
b) 1.R2d7 Bg5 2.Bd4 Kd3+ 3.Ke7 Sg6:#

A22. Luigi Vitale
1.Kd7 f4 2.Se7 f5 3.Be6 f6 4.Bf5 fe7 5.Ke6 e8Q#

A23. Victor Kolpakov
a) 1.Rc8+ Rc7 2.Ra7 Rc8:#
b) 1.Ra6+ Rb6 2.Rb8 Ra6:#


B1. Vyacheslav Kopaev
(1.Qf2? ~ 2.Qd4:#, 1... Sf3!)
1.Rb4? (~), 1... Se6!
1... Ke4:,Sd~,Sg~ 2.Qf5,Qf6,Qf4#
(1... Kd6: 2.b8Q/B#)
1.Bh7:! (~)
1... Ke4:,Sd~,Sg~ 2.Qf4,Qf5,Qf6#
Lacny theme.[A]

B2. Marjan Kovacevic
1.Re7? ~ 2.Se8:#
1... Be4: 2.d4#
1... Be6: 2.Qc5#
1... Sc7: 2.Bc7:#
(1... Re7: 2.Rf5#)) 1... Sd6!
1.Re3! ~ 2.d4#
1... Be4: 2.Qc5#
1... Be6: 2.Se8:#
1... Sc7: 2.Qd6#
(1... Se3:,cd3,c5 2.Qc3#,Qd4,Rd5:#)
1.Qc5? ~ 2.Qd4#, 1... Bg1!
1.Qe7? ~ 2.Se8:#, 1... cd3!
Short-cut Lacny and one additional change. Inspired by M. Velimirovic's article "Shift if shift can" (Mat Plus 6-7/1995). While working I realized that mechanism can be based on 6 critical squares (f5, f4, e4, d4, d5, e6) while 7th (d6) serves for additional change. [A]

B3. Gyorgy Bakcsi
1.Qd5! ~ 2.Sge5/cb8S/Sfe5#
1... Qd5: 2.cb8S#
1... Sd5: 2.Sfe5#
1... ed5 2.Sge5#
(1... S8~ 2.Sf6#)
(1... Qc7:,Sc6 2.Sge5,Sfe5#)

B4. Milan Velimirovic
1.Bd4! ~ 2.Sec4:/Sf3/Sg4/Sc6:#
1... Kd5,Kd6:,Ke7,cd4 2.Sf3,Sc4:,Sc6:,Sg4#
1... Kf6,Rd3:,Sf7:,Sg6: 2.Sd7:,Sd3:,Sef7:,Sg6:#
(1... Rb3: 2.Sec4:#)
Knight tour opens four white batteries to control four BK flights, with four Fleck and four Karlstrom mates.[A]

B5. Srecko Radovic
1.Ra5? ~ 2.Scd5:#, 1... Rh8!
1.Rd8? ~ 2.Sbd5#, 1... Ra1!
1.Ka7? ~ 2.Ra5, 1... Ra1! 2.Ra1:? stalemate!
1.Kb8? ~ 2.Rd8, 1... Rh8! 2.Rh8:? stalemate!
1.e4? ~ 2.ed5#, 1... de4!
1.f3? (~), 1... Rh4! 2.Rd8 Rd4:!
1.f4! (~)
1... Rg1..b1 2.Ra5! ~,Kb6: 3.Scd5:,Ra6#
1... Rh2..h7 2.Rd8! ~,Kc7: 3.Sbd5:,Rc8#
1... Ra1 2.Ra1:
1... Rh8 2.Rh8:
Two tries with short threat are defeated by direct guard by BR moves to corners. Further two tries by WK fail due to stalemate motive. Key move puts black in zugzwang: BR must leave its focal position.[A]

B6. Leonid Makaronets
1... Sc4 2.Sg6+ Kd5 3.Se7:#
1... Sc6 2.Sg2+ Kd5 3.Se3#
1.Kg3! ~ 2.Qg1/Qf2
1... Sc4 2.Qh6 ~ 3.Qe6:#
1... Sbc6 2.Qh7 ~ 3.Qe4#
1... Bb7 2.Qh6 ~ 3.Qe6:#
(1... Rd8 2.cd8Q/S)
(1... Rf8 2.gf8S)

B7. Mirko Markovic
1... Rc4 2.Sf8+ Ke5: 3.Sg6#
1... Kf5 2.Qf3+ Kf4/Ke4 3.Qf3#
1.Sg6! ~ 2.Sde5+ Kd6 3.Bb4:#
1... Rc4 2.Qd5+ Kd5: 3.Sf6#
1... Kf5 2.Qe4+ Ke4: 3.Sf6#
(1... Kd6 2.Bb4:+ Ke6 3.Sde5#)
(1... Kf7 2.Sde5+ Ke8 3.Bd7#)
(1... Sb3/Sc6 2.Sde5+ Kd6 3.Qc6#)
(1... Bg5: 2.Sde5+ Kf6 3.Qg5:#)

B8. Borislav Stojanovic
1.Ba6! e5(~) 2.b5 e4 3.b4 e3 4.Rb8#
1... Kc6 2.Bf4 Kd5 3.Bb7+ Kd4 4.Rd8#
2... e5 3.Be5: Kd5,Kb6,Kd7 4.Bb7,Re6,Bb5#
1... Ka6: 2.Rb8 e5 3.Bc7 e4 4.b5#

B9. Borislav Stojanovic
1.Rg1! ~ 2.Ra1 ~ 3.Ra8+
1... Bb2 2.Rc1 Bc1: 3.Kf7: e5+ 4.Kf6
1... Bc3 2.Kf7: e5+ 3.Kf6 e4+ 4.Rc3:
1... Bd4 2.ed4 etc.
1... Be5 2.Kf7: Bd6: 3.Be7+ Be7: 4.Rg8+
1... Bf6 2.Kf7: Bh4 3.Be7+
1... Bh8 2.Rc1 etc.
(1... Bg7 2.Kg7: --> #4)

B10. Tony Lewis
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.Rc4: Rc4: 2.Re1 Rc2#

B11. Leonid Makaronets & Semion Shifrin
a) 1.Rc4: Rg5: 2.Ke3: Rd5: 3.Re4 Rd3#
b) 1.Se3: Bb7 2.Kc4: Be4: 3.Sd5 Bd3#

B12. Milan Velimirovic
1.Qf2! (~)
1... Ra3 2.Rc4+ Rd3 3.Rd4 Kc1 4.Qc2+
1... Ra4 2.Rc5+ Re4 3.Re5 Kc1 4.Qc2+
1... Rb5: 2.Rc6+ Rf5 3.Rf6 Kc1 4.Qc2+
1... Ra6: 2.Rc7+ Rg6 3.Rg7 Kc1 4.Qc2+
WR vs. BR opposition duel. With WB on d4 (instead on h8) the key 1.Bh8! would be visually more beautiful, but I think that non-standard waiting move more original and difficult. [A]

B13. Leonid Makaronets
1.Be2! ~ 2.Bd3+ Kf3 3.Bb5:+ Ke4 4.Bc6:+
1... Qa6 2,Sc5+ bc5 3.Sg3+ Kd4 4.Qd5+ cd5#
1... Qc8 2.Qe3+ Kf5: 3.Qf3+ Kg6 4.Qf7:+ Rf7:#


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