WINTON BRITISH CHESS SOLVING CHAMPIONSHIP

2012-2013 – 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 Marcel Segers

Problemas, 1999

5R1S/1Bb3S1/6R1/q3k2p/1PPp2b1/8/6QK/4r2s

Mate in 2

1.Ra6?,Rb6? (2.Sg6#) 1...B(x)b6!
1.Rc6?      (2.Sg6#) 1...d3!
1.Rgf6?     (2.Sg6#) 1...Bf5!
1.Rf2?      (2.Sf7#) 1...d3!
1.Rf3?      (2.Sf7#) 1...Qd5!
1.Rff6?     (2.Sf7#) 1...Be6!

1.Rf1!      (2.Sf7#) (5)

1...Rxf1    2.Qe4#
1...Bf3     2.Qg5#
1...Be6     2.Rxe6#
1...Qd5     2.Qxd5#
1...d3      2.Qb2#
1...Sf2     2.Qg3#

1.2 Charles E Kemp

Western Daily Mercury, 1919

8/4S2p/2ps4/1p3pPR/1p1B1k2/1KpQ1PpP/2P3s1/5R2

Mate in 2

1...Sg~ 2.Q(x)e3#
1...Sd~ 2.Qxf5#
1...Se4 2.fxe4#

1.Bf6!  () (5)

1...Sg~ 2.R(x)h4#
1...Se3 2.Qxd6#
1...Sd~ 2.Qd4#
1...Se4 2.fxe4#
1...c5  2.Sd5#
1...h6  2.Sg6#

1.3 Udo Degener

2nd Prize, Thema Danicum, 1993

4K3/1pS4B/bQ2p2s/2P5/1bkP3R/1p3R2/SP6/3rq1Bs

Mate in 2

1.Be3?   (2.Qxe6#) 1...Sf5!
1.Re3?   (2.Qxe6#) 1...Sg4!
1.Be4?   (2.Qxe6#) 1...Sf2!
1.Re4?   (2.Qxe6#) 1...Qe3!

1.Bc2!   (2.Bxb3#) (5)

1...Bb5+ 2.Qxb5#
1...bxc2 2.b3#
1...Rd3  2.Bxd3#
1...Qc3  2.Qxe6#
1...Qe3  2.Qxb4#

2.1 Josef Svejda (v. BDS)

Ceske listy sachove, 1896

3r2b1/2pp2P1/4pk1P/2B1S2Q/r7/s3Pp2/3P3s/3K4

Mate in 3

1.e4!                           (1)
         (2.Sxd7+ Rxd7 3.e5#)   (1)

1...Rxe4 2.Qg6+   Kxe5 3.Qg5#   (1)
1...Sc4  2.Qh4+   Kxe5 3.d4#    (1)
1...d6   2.Be3         (3.Qg5#) (1)
                  Ke7  3.Bg5#
                  dxe5 3.Bg5#

2.2 N Gambin

El Ajedrez Espanol, 1962-1964

5B2/r1r2pRR/1qBp1k1S/1S2bP2/QP3p2/4PP2/8/1K6

Mate in 3

1.Rg8!                        (½)
        (2.Rxf7+ Rxf7 3.Rg6#) (½)

1...Bd4 2.e4     &    3.Sg4#  (1)
1...Bc3 2.Be4    &    3.Sg4#  (1)
1...Bb2 2.Sxd6   &    3.Sg4#  (1)
1...Ba1 2.Qc2    &    3.Sg4#  (1)

3.1 A Zinchuk

7th Place, USSR Championship, 1983

White to play and win

1.Qd2+                 (½)
1...Ke8  (i)   2.Qxb2  (½)
2...Kf8! (ii)  3.Nf4!! (1)
3...Rxf4 (iii) 4.Qh2   (½)
4...Rxf5 (iv)  5.Qh6+  (½)
5...Kf7  (v)   6.e6+!  (1)
6...Rxe6 (vi)  7.Qh7+  (½)
7...Kf6  (vii) 8.Qg7#  (½)

(i)	1...Rd7 2.Qa5+ Ke7 3.Qc5+ Ke8 4.Qc8+ Ke7 5.f6+ Rxf6 6.exf6+ Bxf6+ 7.Kh7 1-0; 1...Kc8 2.Qxb2 Rf2 3.e6 Rh2+ 4.Kg8 Rg2+ 5.Kf8 Rc7 6.e7 1- 0; 1...Kc7 2.Qd6+ Kc8 3.Qxe7 1-0
(ii)	2...Rd7 3.e6 Rd6 4.Qf6 1-0; 2...Rh3+ 3.Kg8 Rh4 4.Nf4 Rg4+ 5.Ng6 Rg5 6.e6 Rxe6 7.Qb8+ Kd7 8.Qb7+ Kd6 9.Qb6+ Kd5 10.Qxe6+ 1-0; 2...Kd8 3.Qb8+ Kd7 4.e6+ Kc6 5.Nd4+ 1-0; 2...Kd7 3.Qb7+ 1-0; 2...Rxf5 3.Qb8+ Kd7 4.Qd6+ Ke8 5.Qg6+ 1-0
(iii)	3...Rf1 4.Ng6+ Ke8 5.e6 Rh1+ 6.Kg8 Rd1 7.Qb5+ Rdd7 8.f6 Rh7 9.f7+ Rhxf7 10.exf7+ Kd8 11.Qb8#
(iv)	4...Rf1 5.e6 Rxf5 6.Qh6+ Ke8 7.Qg6+ Kd8 8.Qxf5 1-0
(v)	5...Ke8 6.Qg6+ Ref7 7.Kg8 Ke7 8.Qd6+ Ke8 9.Qe6+ Kd8 10.Qxf7 Rxf7 11.Kxf7 1-0
(vi)	6...Ke8 7.Qg6+ Kd8 8.Qxf5 1-0
(vii)	7...Kf8 8.Qxf5+ 1-0; 7...Ke8 8.Qxf5 1-0

3.2 Jens Kristiansen

Problem-skak, 2008

White to play and win

1.Bc8+                 (½)
1...Kc6     2.Rh6+ (i) (1)
2...Qd6+    3.Rxd6+    (½)
3...Kxd6    4.c5+      (½)
4...Kc6     5.Bb7+     (1)
5...Kxb7    6.Na5+     (½)
6...Ka7     7.Kc7      (½)
7...Nd7,Nc6 8.N(x)c6#  (½)

(i)	2.Rc7+? Kd6 3.c5+ Qxc5 4.Nxc5 Nc6+ 5.Rxc6+ Kxc6 6.Nxa6 Ra7 =

4.1 Anders Uddgren (v. BDS)

2nd HM., Springaren, 1988

Helpmate in 2
2 solutions

1.Rc7 Sxf6 2.Sb7 Se5# (2½)
1.Bc7 Sg5  2.Sb8 Se7# (2½)

4.2 Mirko Degenkolbe & Franz Pachl

1st HM., StrateGems, 2004

3b4/8/1q2pp2/p3Ps2/P2kp2p/2S5/2P1pKp1/5b2

Helpmate in 4
2 solutions

1.Qb2 exf6  2.Kxc3 f7  3.Bg5 f8=Q 4.Bd2 Qc5# (2½)
1.Qd6 Sxe2+ 2.Kxe5 Sf4 3.Bc4 c3   4.Bd5 Sg6# (2½)

5.1 Aleksandr Galitzky

Shakhmatnoe obozrenie, 1902

Mate in 4

1.Se4!                                   (1)
         (2.Bd7+ Kxf3 3.Bh3  &    4.Sd2# (1)

1...Kxf3 2.Sd2+  Kg4  3.Bd7+ Kxg5 4.Se4# (1½)
1...Kf5  2.Bd7+  Ke5  3.c4   &    4.Bc3# (1½)

5.2 Brian Stephenson (after Leonid Kubbel)

The Problemist, 2013

8/b1S3pp/1p4p1/1Pp2pR1/2k1P3/1Rp1P3/1PP5/1K6

Mate in 4

1.Sd5!                                          (1)
         (2.Sxc3 &    3.Ra3   &    4.Ra4#)      (1½)

1...cxb2 2.Sf4        (3.Sd3  &    4.Sxb2,Se5#) (½)
                 fxe4 3.Re5   &    4.Rxe4#      (½)
                 Bb8  3.Sd3        (4.Sxb2#)
                              Be5  4.Sxe5#
1...f4   2.Rb4+  cxb4 3.Sxb6+ Bxb6 4.b3#        (1½)

6.1 Milos Tomasevic

3rd HM., feenschach, 1984

8/8/6pp/sp1SB1bq/br2S2p/3kPB2/1pR2pp1/1R1KQ1r1

Selfmate in 2

1.Sd6!                  (1)
         (2.Be2+ Qxe2#) (½)
         
1...f1=S 2.Qd2+  Sxd2#  (1)
1...f1=B 2.Qe2+  Bxe2#  (1)
1...Rb3  2.Rc3+  Rxc3#  (½)
1...Sb3  2.Rd2+  Sxd2#  (½)
1...Rg4  2.Be4+  Rxe4#  (½)

6.2 Camillo Gamnitzer

Schach, 2012

r1b1KR2/p1p2P1p/2Pk1b1Q/5P2/P2BP3/1pRp1p2/2SpP3/2q5

Selfmate in 6

1.e3!                                                                           (1)
                (2.Be5+ Kxe5 3.Qh2+  Kxe4 4.Qf4+  Kd5 5.Qc4+ Ke5  6.Qe6+ Bxe6#  (½)
                                                             Kd6  6.Qe6+ Bxe6#) (½)
1...Qh1,Qg1,Qe1 2.Sa3        (3.Sc4+ Kxc6 4.Sa5+  Kd6 5.Sb7+ Bxb7#)
                        Rb8  3.Sb5+  Rxb5 4.Qxf6+ Be6 5.Be5+ Rxe5 6.Qd8+ Bd7#   (1+1+1)

WINTONBRITISH CHESS SOLVING CHAMPIONSHIP

2012-2013 – The Final Problems and Solutions

WINTON
BRITISH CHESS SOLVING CHAMPIONSHIP