WINTON BRITISH CHESS SOLVING CHAMPIONSHIP

2015-2016 – The Final Problems and Solutions

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.

1.1 Aleksey G Kopnin

HM., October Revolution 70th Anniversary Ty., 1987

5B2/8/2p1K3/S4P1p/p1Skp1B1/r7/1P4R1/rs2Q3

Mate in 2

1.Se5?  (2.Saxc6#) 1...Rc3!
1.Be2?  (2.Sxc6#)  1...Rd3!
1.Qb4?  (2.Qd6#)   1...c5!

1.Qh4!             (5)
        (2.Qd8#)

1...Sc3 2.Rd2#
1...e3  2.Be2#
1...Kd3 2.Qd8#

1.2 Givi Mosiashvili

3rd Prize, Probleemblad, 1998

S2R1K2/5S2/2ps4/R1pk1p2/4s3/1pP5/5B2/1B5Q

Mate in 2

1.Be1? 1...Ke6!
1.Bh4? 1...Kc4!
1.Bd4? 1...f4!
1.Qf3? 1...Ke6!
1.Qh4? 1...f4!

1.Qe1!      () (5)

1...Kc4     2.Sb6#
1...Ke6     2.Rxd6#
1...b2      2.Ba2#
1...f4      2.Qxe4#
1...Sxf2    2.Sb6#
1...Se else 2.Sb6,Rxc5#

1.3 Vincenzo Tinebra

British Chess Magazine, 1979

6r1/PK2p3/3kPS1s/R2PR3/1pPB1S2/r7/2q4Q/7b

Mate in 2

1.Re2? 1...Be4!
1.Rg5? 1...Sf5!
1.Sd3? 1...Rxa5!
1.Se2? 1...Qxc4!
1.Sg6? 1...Rc8!

1.Sg2!             (5)
         (2.Bc5#)

1...Rb8+ 2.axb8=B,Q
1...Rxa5 2.Rg5#
1...Qxc4 2.Se4#
1...Rag3 2.Ra6#
1...Rgg3 2.Se8#
1...Rc8  2.Re3#
1...Qf2  2.Se4,c5#

2.1 Frantisek Havelka

Lucan, 1900

Mate in 3

1.Bd7!
        (2.Qc2+ Kd4 3.Qc3#) (1)
 
1...Kd4 2.Bf2+  Kc3 3.Qb3#  (2)
                Kc4 3.Qb3#
                Ke5 3.Qb8#
1...Kc5 2.Qb6+  Kc4 3.Bb5#  (1)
1...d4  2.Qb3+  Kc5 3.Bb4#  (1)

2.2 Mikhail N Marandiuk

2nd Prize, Szwedowski JT, 2008

r6b/3BPs2/b7/r3pS2/p1PBk2P/Qp1S4/4P1s1/2R4K

Mate in 3

1.Rc3!
         (2.Sf2+ Kf4  3.Rf3#)  (1)

1...Sg5  2.Qd6        (3.Sg3#) (1½)
                 exd4 3.Sf2#
                 Rd5  3.Qxd5#
1...Bb7  2.Qc1        (3.Sf2#) (1½)
                 exd4 3.Sg3#
                 Se3  3.Qxe3#
1...exd4 2.Sg3+  Ke3  3.Qc1#   (1)

3.1 Martin Minski

Original for WCBCSC

White to play and win

1.Nb6+! (i)                 (1)
1...Kd6! (ii) 2.Nc4+! (iii) (1)
2...Kc5 3.g8Q               (1)
3...Rh7+?! (iv) 4.Qxh7      (1)
4...g1Q 5.Qa7+ 1–0          (1)

(i)	1.g8Q? Rxa8! 2.Qf7+ (2.Qxg2?? Rh8+ 0-1; 2.Qxa8 g1Q=) 2...Kd6 3.Qg6+ Kc5 ~ 4.Kh6 Ra2 =
(ii)	1...Kc7 K else 2.g8Q 1-0
(iii)	2.Nc8+? Ke5! 3.g8Q Rh7+! 4.Qxh7 g1Q =; 2.g8Q? Rh7+! 3.Qxh7 g1Q =
(iv)	3...Ra8!? 4.Qxa8 g1Q 5.Qa7+ 1-0

3.2 Michael Roxlau

1st Prize, Krivogo Roga JT, 2000

White to play and win

1.Be5+ Bg7 2.Rxg7+                (½)
2...Kh8 3.Rxf7+ (i)               (½)
3...Kg8 4.Rg7+                    (½)
4...Kh8 (ii) 5.Bxb2               (½)
5...Nd4 6.Rg2!                    (½)
6...d5! (iii) 7.Rg6! (iv)         (½)
7...hxg6 8.fxg6                   (½)
8...Kg8 9.h7+! (v)                (½)
9...Kg7! (vi) 10.h5! (vii)        (½)
10...Kh8! 11.Nc7! (viii) 1-0 (ix) (½)

(i)	3.Bxb2? Nd4 4.Nc7 Qxc7 5.Bxd4 f6 =
(ii)	4...Kf8 5.Bd6+ Ke8 6.Rg8+ Kf7 7.Rf8#
(iii)	6...d6 7.Nc7!
(iv)	7.Rg7? Qa4=; 7.Nc7? Qa1+! 8.Kxh2 Qg1+ 9.Kg3 Qe3+ 10.Kh2 Qg1+ =; 7.Rxh2? Qxa8 8.Rg2 Qa1+ 9.Kh2 Qg1+ 10.Kxg1 =
(v)	9.Nc7? Qxc7 10.h7+ Kg7 11.Bxd4+ Kxg6 12.h8Q Qc1+ 13.Kxh2 Qc2+ 14.Kg3 Qd3+ 15.Kf4 Qe4+ 16.Kg3 Qd3+ 17.Kg2 Qe4+ 18.Kf2 Qf5+=; 9.h5? Kf8 10.h7 Qg7 =
(vi)	9...Kh8 10.Nc7! Qb6 11.Ne6 1-0
(vii)	10.Bc3? Qe7 11.Bxd4+ Kxg6 12.h8Q Qe4+ 13.Kxh2 Qe2+ 14.Kg3 Qd3+ 15.Kf2 Qc2+ 16.Kf1 Qd3+ 17.Ke1 Qe4+ 18.Kd1 Qf3+ 19.Kd2 Qg2+ 20.Kc3 Qf3+ 21.Kb2 Qe2+ 22.Ka3 Qa6+ 23.Kb3 Qc4+ 24.Kb2 Qe2+ =
(viii)	11.h6? Qa1+ 12.Bxa1 =
(ix)	For instance 11...Qb6 12.Nb5 or 12.Ne6

4.1 Manne Persson

2nd HM., Thema Danicum, 1988

2s4K/P5Q1/2pP4/1sP1B3/BkP2r2/pb6/1q1P4/bR6

Helpmate in 2
2 solutions

1.Sbxd6 Bxd6 2.Bxa4 Qc3# (2½)
1.Sbxa7 Qxa7 2.Bxc4 Bc3# (2½)

4.2 Henry Tanner

2nd HM., Best Problems, 2004-2005

Helpmate in 4
2 solutions

1.c1=S Ra5 2.Sxd3 Ra1 3.Se1  Rd1   4.Sc2 Rd3# (2½)
1.Kd4  Rb6 2.Kxd5 d4  3.Kxd4 Rxd6+ 4.Kc3 Rd3# (2½)

5.1 Vladimir Pachman

3rd HM., Ceskoslovensky Sach, 1954/II

Mate in 4

1.Bf3!
         (2.Sxf6+ Kc4  3.Be2+  Kxc3 4.Qb2#)   (1)

1...Kc4  2.Be2+   Kd5  3.Bd3   &    4.Qd6,c4# (1)
1...Sxc3 2.Sxc3+  Kc4  3.Be2+  Kxc3 4.Qb2#    (1)
1...Bc1  2.c4+    Kxc4 3.Be2+  Kd5  4.Sxf6#   (1)
1...a3   2.Qd6+   Kc4  3.Be2+  Kb3  4.Qd1#    (½)
1...Sb4  2.Sc5+   e4   3.Bxe4+ Kc4  4.Qxb4#   (½)
                               Ke5  4.Qc7#

5.2 V Kryzhanivsky

4th Prize, Weissauer-85 JT, 2007

8/2ssS1pr/1bBP4/r2PP1Rp/2pkS2P/2p5/b1P2K2/4R3

Mate in 4

1.Bb7!
        (2.Sc6+ Kxd5+ 3.Sd4+   Kxd4 4.Rd1#) (1)

1...Ra7 2.e6          (3.Sc6#)
                Sb8   3.Kf3    &    4.Rd1#  (2)
1...Sc5 2.Sf5+  Kxe5  3.Se7+   Kd4  4.Sc6#  (1)
                               Kf4  4.Sg6#
1...Rc5 2.Rd1+  Kxe4  3.Re1+   Kd4  4.Sf5#  (1)
                               Kf4  4.Sg6#

6.1 Ladislav Knotek

Narodni listy, 1933

Selfmate in 3

1.Rf8!   ()

1...Sf6  2.Qe3+ Kf5 3.Bh7+ Rxh7# (2½)
1...Sxf8 2.Se4+ Kf4 3.Sg6+ Sxg6# (2½)

6.2 Philip H. Williams

Chess Review, 1893

2b4B/2Sp4/3P1r2/RB2k1p1/6P1/4K3/3Q1P1S/8

Selfmate in 4

1.Qb4!  ()

1...Ba6 2.Bc6+ Bb5 3.Sf1 dxc6  4.Sd2 c5 5.Qd4+ cxd4# (2½)
1...Bb7 2.Bf1+ Bd5 3.f4+ gxf4+ 4.Kf2 f3 5.Kg1  f2#   (2½)

WINTONBRITISH CHESS SOLVING CHAMPIONSHIP

2015-2016 – The Final Problems and Solutions

WINTON
BRITISH CHESS SOLVING CHAMPIONSHIP