WINTON BRITISH CHESS SOLVING CHAMPIONSHIP

2019-2020 – The Final Problems and Solutions (Open Section)

Note: In these solutions, those moves that were required are given in bold type. All else is given for the sake of completeness and for the interest of solvers. The symbol 'S' is used for knight and threats are given in parentheses.

1) Jacobus Haring

1/2 Prize, Nederlandse Bond van Probleemvrienden-35 JT, 1966

2Q1bR1K/1P4s1/q5p1/3RB1p1/r2Sk1S1/7s/B1PP4/8

Mate in 2

1.Qc3? (2.Qe3,Qf3#) 1...Ra3!
1.Qc4? (2.d3#)      1...Rxc4!
1.Qc6? (2.Sf6#)     1...Sh5!
1.Bd6? (2.Sf6#)     1...Qf1!

1.Qe6!              (5)
         (2.Sf6#)

1...Rxd4 2.Rxd4#
1...Qf1  2.Bxg7#
1...Qxe6 2.d3#
1...Sh5  2.Bd6#

2) Vassyl Dyachuk & Vassyl Markovtsy

2nd Prize, Lukyanov-60 MT, 2007-2008

1BQ3K1/1p6/1p1S1p2/2skS1p1/r1ps4/b6B/1q6/3RR3

Mate in 2

1.Sg6?(2.Se7#)  1...Qe2!
1.Sd7?(2.Sxf6#) 1...Qe2!
1.Sc6?(2.Se7#)  1...Se4!

1.Se4!          (5)
         (2.Sxf6#)

1...Qf2  2.Sc3#
1...Sxe4 2.Be6#
1...Sd7  2.Qxb7#

3) Aleksandr Mikholap

2nd Prize, Zvyazda, 1988

8/K1S2s2/Bp5b/3R2P1/2p1k3/1S3b2/5Rs1/2B4Q

Mate in 2

1.Bd2?  (2.Qb1#)      1...Se5!
1.Bc8?  (2.Bf5#)      1...Sd6!
1.Kxb6? (2.Sc5#)      1...Se5!
1.Qh3?  (2.Qf5,Qxf3#) 1...Sh4!

1.Qh2!      ()        (5)

1...Sf~     2.Q(x)e5#
1...Bh~     2.Qh7#
1...Bf~     2.Rd4#
1...cxb3,c3 2.Bd3#
1...Sg~     2.Q(x)f4#
1...Se3     2.Sd2#
1...b5      2.Sc5#

4) Yuri Gorbatenko

3rd Prize, SuperProblem, 2015

s4B2/3r1pS1/pp3p2/4kPp1/2Q3R1/KBp2b2/s1S1p3/4r3

Mate in 3

1.Sb4!
         (2.Qd5+ Bxd5    3.Sd3#           (1)
                 Rxd5    3.Sc6#)

1...Bb7  2.Qc6           (3.Re4#)         (1)
                 Bxc6    3.Sxc6#
                 Rd4,Rd5 3.Qe8#
1...Rdd1 2.Qd3           (3.Bd6#)         (0.5)
                 Rxd3    3.Sxd3#
                 Bd5     3.Qg3#
1...Rd2  2.Qd3           (3.Bd6#)         (0.5)
                 Rxd3    3.Sxd3#
                 Bd5     3.Qg3#
1...Red1 2.Qxe2+ Bxe2    3.Sc6#           (1)
                 Be4     3.Sc6,Rxe4,Qxe4#
1...Sxb4 2.Qxc3+ Rd4     3.Qxd4#          (0.5)
1...Sc1  2.Qxc3+ Rd4     3.Qxd4#          (0.5)

5) Allard Eerkes & Megchiel Schrader

2nd Comm., Het Belgisch Schaakbord/L’Échiquier Belge, 1983-1984

1S2q3/sPQ1p3/r2pPP2/1RBk1B2/3P1R1S/sP4p1/8/5bK1

Mate in 3

1.Re4!
         (2.Re5+ dxe5             3.Qxe5#)     (1)

1...Sc4  2.Sg6                    (3.Sf4#)     (1)
                 Qxg6             3.Bxa7#
1...Sc6  2.Sg2                    (3.Se3,Sf4#) (1)
                 Bxg2             3.Bxa3#
1...Qxb8 2.Bxd6+ S3xb5,S7xb5,Bxb5 3.Qc5#       (1)
1...exf6 2.Sxa6  &                3.Sb4,Qxd6#  (1)

6) Ernst Pogosyants (v. Mario Garcia, 2012)

Schweizerische Schachzeitung, 1976

Win

1.Rbf1            (1)
1...g2 (i) 2.Nh6+ (0.5)
2...Kg3 3.R1f3+   (0.5)
3...Kh4 4.R3f4+   (1)
4...Kg3 5.Rg5+    (1) 
5...Rxg5 6.Rg4+   (0.5)
6...Rxg4 7.Nf5#   (0.5)

(i)	1...Kh4 2.R1f4+ Rg4 3.Rf6 g2 (3...Rxf4 4.Kxf4 & 5.Rh6#) 4.Rh6+ Kg3 5. Rf3#; 1...Rg5 2.Rxg5+ Kh4 3.Rf4#

7) Andrei Jasik

HM., StrateGems, 2014

Win

1.Rb1                                    (1)
1...Bd1 2.Rxd1 e2 3.Rxd2                 (0.5)
3...g1=Q (i) 4.Rxe2 Qd4+ 5.Re5 (ii)      (0.5)
5...Kc7 (iii) 6.Ba5+ (iv)                (1)
6...Kd6 (v) 7.Kg8                        (0.5)
7...Qxc4+ (vi) 8.Re6+ (vii)              (0.5)
8...dxe6 9.h8=Q exf5+ (viii) 10.Kf8 (ix) (0.5)
10...Qc8+ 11.Kg7 Qb7+ 12.Kh6             (0.5)

(i)	3...e1=Q 4.Rxg2 Qxb4 5.Kg8 Qxc4+ 6.Kg7 Qd4+ 7.f6 1-0
(ii)	5.Kg8? Qg4+ =
(iii)	5...Qxe5+ 6.Kg8 Qe8+ 7.Bf8 1-0
(iv)	6.Kg8? Qxc4+ 7.Kg7 Qg4+ =
(v)	6...Kc6 7.Bd8 Qxe5+ 8.Kg8 Qe8+ 9.Kg7 Qe5+ 10.Bf6 Qxf5 11.h8=Q 1-0
(vi)	7...Qg1+ 8.Kf8 Qxh2 9.Re7 Qb2 10.Rg7 Qb8+ 11.Kf7 Qh8 12.Kg6 Qe8+ 13.Rf7 Qa8 14.Rf8 Qg2+ 15 Kf7 1-0; 7...Qg4+ 8.Kf8 Qh3 9.Re7 Qxf5+ 10.Rf7 Qh3 11.Bc3 Qxc3 12.Kg8 1-0
(vii)	8.Kf8? Qh4 9.Bb4+ Kxe5 10.Bc3+ Kxf5 11.h8=Q Qxh8+ 12.Bxh8 d5 =
(viii)	9...e5+ 10.Kg7 Qg4+ 11.Kf6 1-0
(ix)	10.Kh7? Qh4+ 11.Kg7 Qd4+ 12.Kh7 Qh4+ 13.Kg7 =

8) Venelin Alaikov

3rd Prize, Dzhon Niman MT, 1996

Helpmate in 3: 2 solutions

1.Ke3 f6  2.Be2 Rd4 3.Se6 Sg4# (2.5)
1.Ke4 Kg5 2.Sd3 Bd4 3.Bf7 Sf6# (2.5)

9) V Koesjnerjov

2nd Prize, Probleemblad, 1974

Helpmate in 4: 3 solutions

1.Qb6 Re7 2.Kb4 Rxe3 3.Ka5 Rxb3 4.Sb4  Ra3# @
1.Kd6 Kg6 2.Ke6 Rb4  3.Qd7 c5   4.Be4+ Rxe4# @
1.Kc6 Rd7 2.Sc7 c5   3.Kb7 c6+  4.Kb8  Rd8# @

@ 1.5/3.5/5.0

10) Wolfgang Pauly

Deutches Wochenschach, 1913

Mate in 4

1.Sc7!
        (2.Qd5+ Kb6  3.Qa5+  Kxa5    4.Sc4#) (1)

1...Be2 2.Sd7+  Kd4  3.Qb6+  Kd3,Kc4 4.Se5#  (1)
1...e3  2.Sd3+  Kd4  3.Qd6+  Kc4     4.Se5#  (1)
                             Ke4,Bd5 4.Q(x)d5#
1...Kd4 2.Qb6+  Kxe5 3.Qc5+  Kf4,Kf6 4.Qg5#  (1)
1...b5  2.Qc6+  Kd4  3.Qxc3+ Kxc3    4.Sxb5# (1)

11) Alois Johandl

2/3 HM., The Problemist, 1993

1sK1S3/1rp5/2p2B2/2pk1B2/1pb5/3p4/5S2/2b5

Mate in 6

1.Sg7! (2.Be6+ Kd6 3.Se4#)

1...Kd6 2.Se4+
2...Kd5 3.Sg3 (4.Be4+ Kd6 5.S3f5#
               4.Be6+ Kd6 5.S3f5,Se4#)
3...Kd6 4.Se8+
4...Kd5 5.Bh7 & 6.Bg8# (5)

12) Peter Sickinger

3rd Comm., StrateGems, 2017

4Sb2/2B2pq1/3r2Pp/4k3/1S2p1Q1/3pK1p1/B2P1P2/8

Selfmate in 3

1...Qf6  2.Qf4+  Qxf4#
1...Qxg6 2.Qxe4+ Qxe4#

1.Qc8!
         (2.Bxd6+ Bxd6     3.Qc5+ @ Bxc5#)

1...Qf6  2.Sxd3+  exd3     3.f4+ @  Qxf4#
1...Qxg6 2.f4+    exf3 ep. 3.Sd3+ @ Qxd3#

@ 1.5/3.5/5.0

13) Gennady Kozyura

1/3 Place, Moscow Championship, 2003

3SR3/4p3/BQ3B1p/K1s1s2r/P2kP1Pp/6S1/P4PP1/2R5

Selfmate in 4

1.Sf7!
         (2.Qd8+ Sd7  3.Se2+ Kxe4 4.Qa8+ @ Sc6#)

1...hxg3 2.Qxc5+ Kxe4 3.Re1+ Kf4  4.Qb4+ @ Sc4#
1...exf6 2.Rd8+  Sd7  3.Rd1+ Kc3  4.Qb3+ @ Sxb3#

@ 1.5/3.5/5.0

WINTONBRITISH CHESS SOLVING CHAMPIONSHIP

2019-2020 – The Final Problems and Solutions (Open Section)

WINTON
BRITISH CHESS SOLVING CHAMPIONSHIP