Mat Plus
Vol II, No.15, Autumn 1997

Solutions to Original problems
(with Author's comments quoted where available)


Twomovers

306. Sasa Stojanovic
1.Sf4! ~ 2.Sd3#, 1... Kf4:,Bf4:,gf4 2.Bh2,Qe7,Rh5#, 1... Sf2,Sf6,de4 2.Re6,Rg5:,Qe4:#

307. Aaron Hirschenson
1.Be3? ~ 2.Ra4:#, 1... Sd5,Rg6,Rc5! 2.a8Q,Qb6,? #
1.Bf6? ~ 2.Ra4:#, 1... Sd5,Rg5!,Rc5 2.Qa6,?,Qb6#
1.Bd8! ~ 2.Ra4:#, 1... Rc5,Rg5,(Sd5?) 2.a8Q,Qa6#, (1... Bc5 2.Sc6#)

308. Miodrag Mladenovic
1.Bf7! (2.de4:#), 1.... Sbd5 (Ab) 2.Se6#, 1.... Sc~ (Bc) 2.Sb5#, 1.... Sc4 (Cd) 2.dc4:#, 1.... ef3: (De) 2.Qe3:#, 1.... Bf2 (Ea) 2.Qg7#
A/a = closing / opening of white line, B/b = unblock / self-block, C/c = guard / unguard, D/d = escape from / expose to WP, E/e = unpin / pin of black man
Problem equals the record number of variations and uses escape from /expose to the cepture by White Pawn as a new effect in 5-variation cycle. I wanted to achieve a 6-fold cycle, but it seems to be quite difficult. [Author]

309. John M. Rice
1.Rf6? ~ 2.Rd6#, 1... Rh6!; 1.Rf5? ~ 2.e6#, 1... Rh5!; 1.Rf4? ~ 2.Be4:#, 1... Rhe1!; 1.Re3? ~ 2.Be4:#, 1... Rhh4!; 1.Rd3? ~ 2.Bc3:#, 1... Rd1!; 1.Rc3:? ~ 2.Rc5#, 1... Rc1!; 1.Qc7? ~ 2.Qd6#, 1... Rh6!, 1... Rd4: 2.Rd3#
1.Qb6! ~ 2.Qc5#, 1... Rd4:,Re5:,R~e,R~4,Bc6:+ 2.Qd4:,Rf5,Re3:,Rf4:,Qc6:#
Problem derives from the theme tourney organized in Pula by Nikolai Veliky: tries by a white unit are refuted by similar moves by a similar black unit. Here there are 4 such tries, with two more by the same WR for good measure - a 6-fold duel between the Rs. In the post-key play the same WR has to do battle with the other BR, but 1... Rd4: is too much for it to cope with. Fortunately WQ is on hand to give the mate, changed from the mate available after the try 1.Qc7? Yhe problems main weakness is the inactivity of the WQ in the thematic try-play: the solver may not see 6 R-tries at all! The check on c6 prevents a cook by 1.Qb4? [Author]

310. Victor Chepizhny
1.Qd5? ~ 2.e5#, 1... Rb7!, 1... e5,Qa7 2.Sb3,Se6:#
1.Rd5? ~ 2.e5#, 1... Qa7!, 1... e5,Rb7 2.Sb5:,Se6:#
1.Se6:! ~ 2.e5#, 1... Rb7,Qa7 2.Rd5,Qd5#

311. Srecko Radovic
1.Bf6? Rd1!,Qe4:,Rd3 2.?,Bh5,Bg6#; 1.Bg5? Rd1,Qe4:!,Rd3 2.Bh5,?,Bf7#; 1.Bh4? Rd1,Qe4:,Rd3! 2.Bg6,Bf7,?#; 1.Bf7? Rd1!,Qe4:,Rd3 2.?,Bh4,Bg5#; 1.Bg6? Rd1,Qe4:!,Rd3 2.Bh4,?,Bf6#; 1.Bh5? Rd1,Qe4:,Rd3! 2.Bg5,Bf6,?#
1.Rh7! ~ 2.Bd7:#, 1... Rf7 2.Se3#, 1... Qg7 2.Qc4#, 1... Rh7: 2.Se1#

312. Efren Petite
1.Rf3? ~ 2.Qd5:/ed5#, 1... Ra5,Qd1,Rd2! 2.Bf7,Bg4,?#
1.Rg3? ~ 2.Qd5:#, 1... Ra5,Qd1!,Rd2 2.Sg7:,?,Bg4#
1.Rb7! ~ 2.Qd5:#, 1... Ra5,Qd1,Rd2 2.Re7,Sg7:,Bf7#

313. Zoran Gavrilovski
1.Sd1? ~ 2.Rf5(A)#, 1... Be6 2.Se3#, (1... f5 2.Re5#), 1... Sf7!
1.Sd3? ~ 2.Rf5(A)/Qd7(B)#, 1... Sf7 2.Qb7:#, 1... Be6!
1.Sfe4! ~ 2.Qd7(B)#, 1... Sf7 2.Sf6:#, 1... Be6 2.c6#, 1... Ke6 2.Sf6:#, 1... Sc6 2.Qc4#
Corrective play of WSf2 produces Barnes threat separation. Content is very rich because actual defences reciprocally appear in tries as defence and defeat, and such combination with Barnes theme has not been realised often, neither is simple to compose. The role of WRf1 in actual play was the biggest constructional problem, which was overcame by the control of f5 after the BKs flight. [Author]

314. Dragan Stojnic
(*1... e3 2.Qe3:#)
1.Qa1! (~)
1... de2,dc2,Bb3:,Bb5:,ef3,gf5,de6,dc6 2.Sde2:,Sc2:,Sb3:,Sb5:,Sf3:,Sf5:,Sde6:,Sc6:#
1... d5,d6,e3 2.Sg6:,Bg7:,Re3:#
S-Wheel and Pickaninny with one changed mate. Task-record. [Author]

315. Mihail Pavlov
1.Qa2? ~ 2.Rg5:#, 1... h6!, 1... Be6:,Bg3: 2.Be4,Qd2:#
1.Qf7? ~ 2.Qf5#, 1... hg6!, 1... Be6:,Bg3: 2.Qe6:,Rd2:#
1.Se4! ~ 2.Sf6#, 1... Kc4:,Ke6: 2.Qa2,Qf7#


Three- and moremovers

316. Vladimir Kozhakin
a) 1.a3! Kb3 2.Rc6 ~ 3.Rc3#
b) 1.a3! Kc3 2.Bb5 ~ 3.Rd3#, 1... Kb3 2.Rd3+ Kc4 3.Bb5#
c) 1.Kc2! Kb4 2.a3+ Ka5,Kc4 3.b4,b3#
d) 1.h7! Kb3/Kb4 2.h8Q ~ 3.Qc3#

317. Aleksandr Chistyakov
1.Bd4! ~ 2.Sc5+ Ka5 3.Bc3#, 1... d6 2.fe8Q ~ 3.Qb5/Qc6#, 1... Rc2 2.Ka8 ~ 3.b8S#, 1... Rf4 2.fe8S ~ 3.Sc7:#

318. Milan Velimirovic
1... Rc4 2.Re6+ Kd5 3.Re5#, 1... Rc5 2.Rdc6:+ Kd5 3.Rc5:#
1.Sf4! ~ 2.Sh5! ~ 3.Rd7#, 1... Rc4 2.Rdc6:+ Kd4 3.Rc4:#, 1... Rc5 2.Re6+ Kd4 3.Re4#, (1... Se7 2.Ke7: Kf4: 3.Rg6#), (1... c5,Ra1 2.Re6+,Rdc6:+)
Reciprocal change, Rossel. Flight giving key and hidden quiet threat defeated quite a few solvers! [Author]

319. John M. Rice
1.Qe8! ~ 2.Qd7:+ Se6 3.Qe6:#; 1... Bf3: 2.Rf2+ Be4 3.fg5#, 2... Se4 3.Qd7:#; 1... Bd5: 2.Rc5+ Be4 3.Sed7:#, 2... Se4 3.Qh5#; 1... Se6 2.Qh5+ Sg5 3.Qg4#; 1... fe5 2.Qd7:+ Kf6 3.fg5#
Black obliginly captures a WP on a potential battery-line, so that a bettery-mate is possible after the switchback by the B. There are different mates after 2... Se4 according to where B has played on move 1. Not a very exciting idea, perhaps, but the construction has turned quite neatly. [Author]

320. Mirko Markovic
1.Bd3? (~), 1... S~,Se4 2.Qf7+ Be6 3.Qf3,Qe4#, 1... B~ 2.e8S ~ 3.Sc7#, 1... Bd3: 2.cd3 ~ 3.Qf7#, 1... Bd7 2.cd7 ~ 3.Qf7#, 1... g5 2.Qf5: ~ 3.Qf7#, , 1... a3!
1.Sd3? ~ 2.Sf4+(Sb4+) Ke4,Kc6: 3.Qe5,Bb5#, 1... Ke4 2.Sc3+ Ke3,dc3 3.Bf4,Qe5#, 1... Kc4 2.Sb4+ d3 3.Sa3#, 1... Kc6: 2.Sb4+ Kd7 3.Bb5#, 1... Bd3: 2.Qe5+ Kc4,Kc6: 3.cd3,e8Q#, 1... Bd7 2.Qe5+ Kc4,Kc6: 3.Sb2:,Rb6#, 1... g5 2.Qf5:+ Kc6:,Kc4 3.Rb6,Sb2:#, 1... Sc4 2.Bf3+ Be4 3.Sb4#, 1... Sf3!
1.Sg4! ~ 2.Qe5+ Kc6: 3.Bb5#, 1... Sf3 2.Qf7+ Be6,Ke4,Kc6: 3.Qf3:,Bd3,Bb5#, 1... d3 2.Sc3+ Kc4,Kc6: 3.Se3,Se5#, 1... Sc4 2.Qe6+ Be6:,Kc6:,Ke6: 3.Bf3,e8Q,Bc4:#, 1... Kc6: 2.Bb5+ Kd5 3.Qe5#, 1... Be6 2.Bc4+ Sc4:,Kc4:,Ke4,Kc6: 3.Qf3,Qe6,Qf4,Se5#

321. Zoran Gavrilovski
1.Be~? Rd4!, 1.Bc5!? Rf4!
1.Bd2! ~ 2.e3+ Se2 3.Be2:#; 1... Rd4 2.Qg8+ Bg8: 3.cd4#, 2... Se6/Sf7 3.Q:S#; 1... Rf4 2.Sd6+ cd6 3.Qc8#; (1... Reg4: 2.e4+ Se2 3.Be2:#)
Corrective WBe3 try play is defeated by corrective moves of the pinned WR, which in teal play appear as the secondary Schiffmann defences against the secondary threat 2.e4+. I composed this problem in memory of my recently deceased pen-friend Robert C. McWilliam from BCPS Book Sales. Schiffmann theme was his favourite one. [Author]

322. Alexander Zidek
1.de5? de5!
1.Ba7! ~ 2.Sb6+ Sb6: 3.Rd6:#, 1... Rb3 2.R4e5:+ de5 3.e4#, 1... Rd7: 2.R6e5:+ de5 3.Qe6#, 1... Qd8 2.Qe5:+ de5 3.Sf6#, 1... Sb7 2.de5 (~ 3.Rd4/Bc4,Bb7:#)
Four Raumungsopfer on e5. Friedrich Chlubna thinks it could be a task record for this kind of sacrifices on the same square. [Author]

323. Mircea Manolescu
1.Be7! ~ 2.Bd6:+ Sd6: 3.Qc5#; 1... Sfe7: 2.Se1 ~ 3.Sd3:#, 2... Be2,Sb4 3.Re6,Qd6:#; 1... Sce7: 2.Se3 ~ 3.Sc4#, 2... d5,Se3: 3.Re6,Qd6:#; (1... d5 2.ef5 d4 3.Qc5#)
Ruchlis theme. [Author]

324. Arieh Grinblat
a) 1.Qd3:! ~ 2.Qa3, 1... de3 2.Rb5:+(A) cb5 3.Qd5#, 1... Re3: 2.f6+(B) Ke6/Sf5: 3.Qf5#, 1... fe3 2.Qe4:+(C) Ke4: 3.f6#, (1... c5 2.Rb5: ~ 3.Rc5:#)
b) 1.Qf3! ~ 2.Sc5, 1... de3 2.Qe4:+(C) Ke4: 3.f6#, 1... Re3: 2.Rb5:+(A) cb5 3.Qd5#, 1... fe3 2.f6+(B) Ke6/Sg5: 3.Qe4:#
Lacny theme. [Author]

325. Vladimir Kozhakin
1.Qe1! ~ 2.Kc2#; 1... Qf5 2.Bc4! ~ 3.Kd2+ Kb2,Qb1 4.Qc1,Qb1:#, 2... Qf4+/Qg5+ 3.Kc2+ Qc1 4.Qc1:#, 2... Qf2 3.Qf2: a3 4.Qa2#, 2... Qf2/Qh5/Qd7 3.Kc2+ Qd1 4.Qd1:#, 2... Qe6 3.Be6: a3 4.Kc2#
1.Qe5? Qc6 2.Kc2 Qg6: 3.Se4+ Ka2 4.Qb2#, 2... Qe8 3.Qe8: a3 4.Qe1#; 1... a3!
1.Kc2? Qf5+ 2.Bd3 Qd3:+ 3.Qd3: a3 4.Qd1/Qf1#, 1... Qe6!

326. John M. Rice
1.Ke8! ~ 2.Qh3+ Kg6 3.Sf8+ Kg7 4.Qh7#, 2... g4 3.Qg5; 1... Be5: 2.Sd6+ Bd6: 3.Be6:+ Ke6: 4.Qg4#; 1... Qe5: 2.Sd4+ Qd4: 3.Be4:+ Ke4: 4.Qh1#; (1... e3 2.Bf3 (~ 3.Qh7) Qh1 3.Sd4#); 1... Bb5: 2.Qh3+ Kg6 3.Be4:+ Kg7 4.Qh7#; 1... ed5 2.Qh3+ g4 3.Qh5+
White would like to check on e6 or e4, but these squares are adequately guarded. So a double-check is necessary, but there are two white units to be cleared from the line on the 5th rank. Black must be induced to capture the Pe5 and then to provide a distant self-block by capturing the WS after it has checked on the second move. The key, introducing a full-length threat, may perhaps be quite a hard to find. [Author]

327. Arieh Grinblat
1.Rf5! ~ 2.Bb6 ~ 3.Sd6#, 1... Qf3 2.Bd5+ Kd5: 3.Sd7+ Ke4 4.Sc5#, 1... Sf3 2.Rf4:+ Kf4: 3.Sd3+ Ke4 4.Sc5#

328. Yury Sushkov
*1... d6 2.Ba7(A) d5 3.e5(B) d4 4.Rc5#, 1... d5 2.e5(B) d4 3.Ba7(A) d3 4.Rc5#
1.Be7! d6 2.Rd5(A) a5 3.Ra5:(D) Kb6 4.Bd8+(B) Kc6 5.Bc7(C) d5 6.ed5#, 1... d6 2.Rd5(A) Kb6 3.Bd8+(B) Kc6 4.Bc7(C) a5 5.Ra5:(D) d5 6.ed5#, 1... Kb6 2.Bd8+(B) Kc6 3.Bc7(C) d6 4.Rd5(A) a5 5.Ra5:(D) d5 6.ed5#
Cyclic permutation of 2-3 moves in the set play and cyclic permutation of 3-5 moves and 2-4 moves with model mate in the solution. [Author]

329. Marko Klasinc
1.Kc6! (2.Ra8#) Sb6 2.Ra8+ Sa8: 3.d7+ Kb8 4.Bd6+ Ka7 5.Bb8+! (5.d8Q?) Kb8: 6.d8Q+ Ka7 7.Qb6+ Sb6: 8.cb6+ Ka8/Kb8 9.Qf8#
1... Kb8 2.Rh7: (3.Qf7) Sc5: 3.Qb1+ Ka8 4.Ra7+! (4.Qb6?) Ka7: 5.Qb6+ Ka8 6.Kc7 (7.Qb8#) Rg7+ 7.Bg7: Se6:+ 8.Kc8 Sc5 9.Qb8#

330. Tomislav Petrovic & Radovan Tomasevic
1.fg6(ep)! hg6+ 2.Kg4 g5 3.Kf5 g4 4.h7 g3 5.h8S g2 6.Sg6 fg6+ 7.Ke5 g5 8.f7 g4 9.f8S g3 10.Se6 de6 11.Kf6 ~ 12.Ke7 ~ 13.d7 Bd7: 14.Kd7: ~ 15.c8S ~ 16.Sb6#
Task: the longest direct mate with en passant key! [Author]


Helpmate twomovers

331. Tomislav Petrovic
1... bc6(ep) 2.gf1B 0-0-0# (2... Rd1?, 2.Rd5?)
Valadao theme in h#1 1/2 - task! White must castle in order to prove a posteriory that niether WK nor WRa1 has moved. [Author]

332. Newman Guttman
1.Rd5 Kg4 2.Ke5 Qe7# (1.Ke5? - self interference), 1.Rc5 Kf4 2.Kd5 Qd7# (1.Kd5? - self interference), 1.Rb5 Ke4 2.Kc5 Qc7# (1.Kc5? - self interference)
This helpmate is a trifle strategically, but perhaps showing three exact-echo tries in a miniature. [Author]

333. Victor Chepizhny
1.Qa7? ? 2.Qf2 Sf3#, 1.Qf8?! Kb6 2.Qf2+?, 1.Qd8! Kb6 2.Qd2 Sh3#
1.Bc5? ? 2.Bf2 Sf3#, 1.Bg5?! Kb4 2.Bd2+?, 1.Bh4! Kb4 2.Bf2 Sf3#

334. Vito Rallo & Antonio Garofalo
a) 1.Ree6 Rg1 2.Se3 Rg5#, b) 1.Se5 Rc6 2.Bb6 Rf6#

335. Mihailo Stojnic
1.Re4 Rg5+ 2.Kf4 Bd2#, 1.Ke5 Bc7 2.Rf5 Re8#, 1.Qg5 Bd2 2.Kg4 Rf4:#

336. Gyorgy Bakcsi & Laszlo Zoltan
a) 1.ef6 Sgf4 2.f5 Bd5#, b) 1.ed6 Se1 2.d5 Bd3#, c) 1.Bb5 Sh4 2.Bd3 Bf3#, d) 1.g5 Se3 2.Bf3 Bf5#
An ABCD-BCDA change between the f5-d5-d3-f3 fields. [Author]

337. Michael McDowell
1.Re5: Rc3 2.Be4 Be5:#, 1.Bd3: Bd6 2.Re4 Rd3:#

338. Franz Pachl & Markus Manhart
1.Rg5 Bd2 2.Rg6 Sd5#, 1.Bf5 Re2 2.Bg6 Sg4#, 1.Ke5 Ba3 2.Kd6 Sc4#, 1.Kg5 Rh1 2.Kh4 Sg2#
This is a teamwork, composed on telephone. There are always two thematic pairs with 4 mates by the white knight, perhaps a Letztform. [Author]

339. Semion Shifrin
a) 1.R2d5 Ra8 2.Ke4 Ra4# - Ab, b) 1.Qe6 Sf8 2.Ke5 Sg6# - Bc, c) 1.R6d4 Se5 2.Ke3 Sd3# - Ca
Cyclic functions of three black pieces. The first function is: a thematic piece closes both one black and one white line and becomes self-pinned by BK move (A, B, C). The second function: a thematic piece blocks the flight (a, b, c). The BK is mated on squares which are initially double guarded by white. [Author].

340. Colin Sydenham
B--> : 1.Sd5: Bd4 2.Sc3 Be3#, W--> : 1.Sc3: Rc5 2.Sd5 Rc1#
Mutual captures, switchbacks, pin-model mates. [Author]

341. Leonid Makaronetz & Semion Shifrin
a) 1.Sb5 Se4 2.Ke6 Sf6#, b) 1.Sd2 Rg3 2.Ke5 Rd3#, c) 1.Bg2 Re5+ 2.Kd6 Rh5#

342. Vyacheslav Kopaev
a) 1.Rd1 Rdd2 2.Rd3 Rc2#, b) 1.Rd2 Rd3 2.Rd4 Re3:#, c) 1.Rd3 Rd4 2.Rd5 Rc4:#
Loshinski theme with three pieces. [Author]

343. Mitja Ukmar & Marko Klasinc
a) 1.Bc8 Rh7 2.Ke8 Rh8:#, b) 1.Be8 Rc6: 2.Kd7 Red6:#, c) 1.Bc8 Re6: 2.Kd7 Rcd6:#, d) 1.Be8 Rc6: 2.Kd7 Red6:#, e) 1.Bc8 Rc5: 2.Sd7 Rc8:#

344. Zivko Janevski
1.Qd5 Rg5:+ 2.Ke4 Qa4#, 1.Qd4 Bd7 2.Kd5 Qa5#, 1.Qe4 Rc3 2.Kd4 Qh8:#
Anticipatory self-pins with cyclic arrival squares for BQ and BK - shown for the first time. In addition, cyclic functions of WB and two WRs. All mates by same white piece (WQ). [Author]


Helpmate three- and moremovers

345. Gabor Cseh & Arpad Molnar
1... Rd1 2.a1B Rd6 3.Bb2: Bd2#, 1... 0-0-0 2.a1S Rd7 3.Sc2 Bg7:#

346. Dragan Stojnic
1.Qc3 Se4:(A) 2.Qe5 Bg8(B) 3.Se6 Bh7#(C), 1.Sh5 Bg8(B) 2.Qh6 Bh7+(C) 3.Kg5 Se4:#(A)
Cyclic change of white moves in two solution (ABC-BCA) with only 10 pieces. [Author]

347. Tode Ilievski
a) 1.Rc2 Kf7 2.Kc3 Rd5: 3.Rc4 Rd3#, b) 1.Rc5 Kf8 2.Kc4 Be4: 3.Sc3 Bd3#

348. Alexander Zidek
a) 1.Bb2 Kg6: 2.Ba3 Kf7 3.Bd6 cd4#, b) 1.dc3 Kf7 2.Bb3 Ke7 3.Bd5 d4#, c) 1.Sgf4 Kc6 2.Qg5 Kd7 3.Qf6 ed4#
Three P-mates on d4. [Author]

349. Mircea Manolescu
1.Ke6 Bc5(A) 2.Sb6 Rf5(B) 3.Sd7 Sd4(C)#, 1.Kd6 Rf5(B) 2.Rd8 Sd4(C) 3.Rd7 Bc5(A)#, 1.Ke5 Sd4(C) 2.Re2 Bc5(A) 3.Re4 Rd5(B)#

350. Michel Caillaud & Gabor Cseh
*1... Sd6 2.Sf3:+! Bf3 3.Sb4 Sb7:#, 1.Bc6 Bf5:! 2.Sf5: Sc7 3.Sd6 Sa6#

351. Vyacheslav Kopaev
1.Rf6 Kh4 2.Bf7 Kg5 3.Qe8 Kf6: 4.Bg8 Bg7#, 1.Rf3 Bd4 2.Qh7 Kg5 3.Rg3 Kf6 4.Qg8 Bc5#, 1.Qd7 Kg5 2.Re7 Kh6 3.Bf7 Kh7 4.Qe8 Bg7#

352. Genadiy Chymakov
*1... Bg7:+ 2.Kg8 Bh6: 3.Kh8 Bg5: 4.Bg8 Bf6#, 1.Bg8 Be5 2.Qf5 Bf6:+ 3.Bg7 Be5 4.Bf6 Bf6:#

353. Fadil Abdurahmanovic
1... b8S 2.Rc2 Sc6 3.Kd7 Sb4 4.Qd6 Sa6 5.Rc7 Sb8#

354. Albert Grigoryan
a) 1.c1B d5 2.b1R d6 3.Rb7 d7 4.Bf4 d8Q 5.Bb8 Qa5#, b) 1.c1B d5 2.b1R d6 3.Rb6 d7 4.Rg6 d8Q 5.Bg5 Qh8#

355. Fadil Abdurahmanovic
Tries: 1.Kc4 Be8 2.Qa3 B~ 3.Kb5 Kc7 4.Ka4 Kb6 5.?! Be8#, 1.Kc4 Be8 2.Qa3 Kd7 3.Kb5 ?! 4.Ka5! Kc6 5.Ka4 Kb6#
Solution: 1.Kc4 Be8 2.Qa3 Kd7 3.Kb5 Kc7+! 4.Ka5 Kc6! 5.Ka4 Kb6#
The old mechanism by Dr. K. Ebercz (2nd Pr. Magyar Sakkvilag 1934) of one critical move and two interferences by the same white piece, in the most economical position. There were many versions of this mechanism, one of which is by C. J. Feather, and another by R. Weihagen which is the first one in miniature form. Please, note here two tries with the lack of tempo both for black and white. [Author]

356. Arkadi Khaid
1.a1B Kb7: 2.Ra2 Kc6: 3.Sa3 Kd5 4.b1S Ke4 5.Bd4 Kf3 6.Bg1 Kg3#
This is the correction of my incorrect problem (without BPc4 and BPc5) published in Problem 1981. [Author]

357. Albert Grigoryan
1.c2 Kg1 2.c1S Kf1 3.Se2 Ke1 4.Sg3 fg3 5.Kg5 Kf2 6.hg3+ Kf3: 7.Kh4 Kf4: 8.h5 hg3#


Selfmates

358. Zoran Gavrilovski
1.Bc6:? Rb6:!, 1.Be6? Rd2:!, 1.Be4? Sd2:!
1.Bc4:! ~ 2.Qb4+ Bb4:#, 1... Rb6: 2.Rc6:+ Rc6:#, 1... Rd2: 2.Bd6:+ Rd6:#, 1... Sd2: 2.Se4+ Se4:#
Three-fold battery creation and WB star in tries and key move. [Author]

359. Zoran Gavrilovski
1.Rh~? cd3!
1.Rg8! ~ Bg1+ cd3 3.Bh2:+ Kh2:#, 1... Be6: 2.Bg5:+ cd3 3.Bf4+ Kf4:#, 1... Sf2 2.Bc5:+ cd3 3.Bf2:+ Qf2:#, 1... hg2 2.Bc1:+ cd3 3.Qg2:+ Kg2:#, 1... cd3 2.Bf4+ gf4 3.Rg4:+ Kg4:#
WB star. [Author]


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