plik

2/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Sergeï P. ZAKHAROV

Shakhmatnaya Kompozitsiya

1993-94 (v)

3° Prix





















‡4 (8+5) C+

1.D×a6!

blocus

1…Re5 2.Cf7+ Rf4 3.Dd3 [4.Cd5‡]

1…Rg3,Re3 2.Dd3+ Rf4 3.Cf7

[4.Cd5‡]

2…Rh4 3.Df5 [4.Dg4‡]

1…Rg5,Re5 2.Cf7+ Rf4 3.Dd3

[4.Cd5‡]

2…Rf5 3.Cd5 Re4 4.Dd3‡

2…Rh4 3.De6,Dc8,R×g2

2…Rd4 3.Dd3+ Rc5 4.Dd5‡

2…Re4 3.Dd3+ Rf4 4.Cd5‡

1…Re4 2.Cf7 [3.Dd3+ Rf4 4.Cd5‡]

f5 3.Cd5 Re4 4.Dd3‡

1…Rf3 2.Dd3+ Rf4 3.Cf7 [4.Cd5‡]
1…Rf5 2.Cf7 [3.Cd5 Re4 4.Dd3‡]

e4 3.Dd3+ Rf4 4.Cd5‡

2…Rf4 3.Dd3 [4.Cd5‡]

Uri AVNER

Canadian Chess Chat 1980

3° Prix





















‡4 (10+11) C+

1.Aa2!

[2.Ag5+ R×e5 3.Df4+ Re6

4.c5‡]

1…Ac5 2.A×h6+ R×e5 3.Af4+ Re4

4.Cg5‡

1…Tc5 2.A×g3+ R×e3 3.Af4+ Re4
4.Cf2‡

3/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Hans Peter REHM

Mémorial J. Halumbirek 1971-72

1° Prix





















‡6 (9+6) C+

1.Cb5+?

mais 1…Re4!

1.g4? [2.Cb5+ Re4 3.Td5,Aa2]

mais 1…b1=D!

1.Aa2!

[2.Cb5+ Re4 3.Ab1‡] Ac2

2.g4 [3.Cb5+ Re4 4.Td5,Ag8] h×g4

3.Ag8 [4.Cb5+ Re4 5.A×h7‡] Ag6

4.Cb5+ Re4 5.Aa2 Rf5 6.Cd6‡

Milan VUKCEVICH

Mat 1981

1° Prix





















‡6 (9+13) C+

1.Ce4!

[2.Cf6‡] Re6 2.Cg3+ Rd5

3.Tc7 [4.Te5,Ac4‡] De2 4.C×e2
[5.Ce~]

4/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Hans Peter REHM

Schach 1984

1° Mention d'Honneur





















‡5 (6+15) C+

1.A×f5? [2.A~,Ch7‡]

mais 1…g×f5!

1.Ac2? [2.A×b3 [3.T×f7,Ch7‡]]

mais 1…d3!

1.Ad3!

[2.Ac4 [3.T×f7,Ch7,D×d4‡]]

1…Ta5 2.Ac2 [3.A×b3

[4.T×f7,Ch7‡]] Ac4 3.Ae4 [4.Ad5

[5.T×f7,Ch7,D×d4‡]] Ta4 4.A×f5

[5.A~,Ch7‡] g×f5 5.D×d4‡
1…Ad5 2.Dg5+ Re5 3.Te7+ Ae6

4.Cd7+ Rd5 5.Dg2‡

Franz SACKMANN

Deutsches Wochenschach 1913





















‡6 (8+4) C+

1…C~ 2.Cd6‡

1.Ce5!

[2.Cd7,Cf3,Ced3,Cf7] Cc5

2.Cf3 [3.Cd2‡] C×b3 3.Ce5

[4.Cd7,Cf3,Ced3,Cf7] Cc5 4.Cf7

[5.Cd6‡] Cb7 5.b3 C~ 6.Cd6‡

5/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Mikhaïl MARANDYUK

Valentin F. RUDENKO

Shakhmaty v SSSR 1990

3°-4° Prix e.a.





















‡6 (11+13) C+

1.Cc4!

[2.Cd2‡]

1…A×c4 2.Af3+ Rf5 3.D×e5+

×e5 4.Ag4+ Re4 5.Te3+ Rd4

6.c3‡

1…T×c4 2.Te3+ Rd4 3.A×e5+

×e5 4.Td3+ Re4 5.Af3+ Rf5

6.Dg5‡

Hans Peter REHM

Schach 1987

Prix





















‡6 (9+15) C+

1.Tbd2? [2.Cc4 [3.A×b5,Ca5,Tc5‡]]

mais 1…D×g5!

1.Ac8!

[2.A×d7‡] Ah3 2.Tg2 [3.Aa6

[4.A×b5‡] Tc5 4.T×c5‡] Af5 3.Aa6

[4.A×b5‡] Ad3 4.Td2 [5.T2×d3

[6.A×b5‡] Tc5 6.T×c5‡] Af1 5.Cc4

[6.Tc5,A×b5,Ca5‡]

(4…Ae2 5.T×e2,Cc4)

6/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Erich ZEPLER

dédié à W. Von Holzhausen

Münchener Schachzeitung 1932

(v)





















‡6 (11+6) C+

1.Ae4!

[2.Cd3‡] Df1 2.Ag6 [3.Te4‡]

b1 3.Ad3 [4.Te4‡] Dh1 4.Ac2

[5.Cd3‡] Dh7 5.Ae4 [6.Cd3‡] D×e4

6.T×e4‡

4…D×d5

5.T×d5+ Re6 6.Af5‡

3…D×b4 4.a×b4

[5.Ac4 [6.Te4‡]]

Hans Peter REHM

dédié à B. Lindgren

Schach-Echo 1979

2° Prix





















‡5 (9+10) C+

1.b4? [2.C×e4‡]

mais 1…T×f5!

1.Tc4!

[2.C×e4,Tf7‡] Cd8 2.Tc5

[3.Ae5,A×e7‡] Cc6 3.b4 [4.C×e4‡]

×b4 4.Tc4 [5.C×e4,Tf7‡] Cd8,Ce5

5.A×e7‡

3…Ad5 4.T×d5

[5.C×e4,Tf7‡]

(2…e×d6 3.Tcc7 [4.Th6‡]

f7,Cf7 4.Tc×f7+,Th×f7+)

7/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Adolf KRAEMER

Erich ZEPLER

Deutsche Schachzeitung 1950





















‡5 (7+6) C+

1.Cc3!

[2.Ad5,Ad3‡] Dd6 2.Ab7 De6

3.Cd5 Dh6 4.Ac6 [5.Cb6‡] D×c6

5.C×e3‡

2…Dc6 3.C×a5+ Rd4

4.C×c6+ Rc4 5.A×a6‡

Erich ZEPLER

dédié à A.C. White

Die Schwalbe 1935 (v)

Prix





















‡6 (6+7) C+

1.Af3? [2.Ag4‡]

mais 1…e×f5!

1.Cd1!

[2.Cf2‡] Rg4 2.Cf2+ R×f5

3.Cd1 [4.Ce3‡] Rg4 4.Ce3+ Rh3
5.Af3 [6.Ag4‡] Ae2 6.Ag2‡

8/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Hans Peter REHM

Rochade 1980-81

3° Prix





















‡6 (7+6) C+

1.Re2? [2.c3‡]

mais 1…Cd5!

1.Cf5+!

c4 2.Cd6+ Rd4 3.Re2

[4.c3‡] Ce4 4.Cf5+ Rc4 5.Ce3+

d4 6.Td5‡

Baldur KOZDON

Canadian Chess Chat 1980

1° Prix





















‡6 (4+8) C+

1.Aa1!

[2.Cc3+ R×a1/Rc1

3.Ta2/Ab2‡]
1…Tc1+ 2.Ac3 [3.Tb2+ Ra1

4.C×c1 [5.T~‡/Cb3‡]] Th1 3.Tb2+

a1 4.Th2+ Rb1 5.T×h1+

×a2/Rc2 6.Ta1‡/Tc1‡

2…Tg1 3.Tb2+ Ra1 4.Tg2+

b1 5.T×g1+ R×a2/Rc2

6.Ta1‡/Tc1‡

2…Te1 3.Tb2+ Ra1 4.Te2+

b1 5.T×e1+ R×a2/Rc2

6.Ta1‡/Tc1‡

2…Td1 3.Tb2+ Ra1 4.Td2+

b1 5.T×d1+ R×a2/Rc2

6.Ta1‡/Tc1‡

2…C~,e5,Ab7 3.Tb2+ Ra1

4.Tc2+ Rb1 5.T×c1+ R×a2 6.Ta1‡

(1…Th3 2.Ac3 [3.Tf1+ R×a2/Rc2

4.Ta1‡/Tc1‡] Tf3 3.Tb2+ Ra1,Th1

4.Te2+,Td2+,Tc2+)

9/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Andreï LOBUSOV

Europa Rochade 1986-87

1° Prix





















‡6 (8+8) C+

1.Td3? [2.Ce3‡]

mais 1…d1=C!

1.Ch3!

[2.Cf4‡] Re6 2.Ch6 [3.Cf4‡]

d5 3.Td3 [4.Cf4‡] e×d3 4.Cf5

[5.Cf4+,e4+] Re6 5.Cg5+ Rd5

6.e4‡

Camillo GAMNITZER

Die Schwalbe 1987

2° Mention d'Honneur





















‡5 (12+10) C+

1.Ah4!

[2.Ad8 [3.Ab6‡]] T×e4

2.Af2+ Te3 3.Tc8 [4.Tc5 [5.Td5‡]]

×e5 4.Te8+ Rd4/Rf6 5.Te4/Ah4‡

10/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Andreï LOBUSOV

Mémorial Lénine-120 1989-90

2° Prix





















‡5 (12+8) C+

1.Ad2!

[2.Td3+ Rc5 3.Ce4+ T×e4

4.Tc3+ Rb4,Rd4,Tc4 5.T(×)c4‡]
1…Af5 2.Cf3+ Re4 3.Ad3+ T×d3

4.Cg5+ Rd4 5.d8=D‡

1…Ag2 2.Cc×e6+ Rd5 3.Tc5+

×c5 4.Cc7+ Rd4 5.e3‡

2…T×e6 3.d8=D+ Td6

4.Td3+ Rc5 5.Db6‡

1…a×b5 2.C×b5+ Rd5 3.e4+

×e4 4.Cc7+ Rd4 5.Cf3‡

(1…Td5 2.C×d5 [3.Cf6,Cb4])

Camillo GAMNITZER

Schach-Aktiv 1989

4° Prix





















‡5 (7+14) C+

1.Ra7!

[2.Db7+ Rc4/Cc6+

3.De4/D×c6‡]
1…f3 2.Af7+ Re4 3.Cc5+ A×c5

4.Ag6+ Rd5 5.De6‡

1…Ag2 2.C×c3+ Rd4 3.Td6+

×d6 4.Ce2+ Rd5 5.Cb6‡

1…Ad6 2.Db7+ Re6 3.Cc5+ Rf6
4.Ce4+ Re6 5.Df7,T×d6‡

11/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Dieter WERNER

Norbert GEISSLER

Die Schwalbe 1989

1° Prix





















‡6 (10+12) C+

1.Ab5+!

d4 2.Ac6

[3.D×d5,D×c5‡] Rc4 3.Cc2

[4.Ab5‡] D×c2 4.D×c5+ A×c5

5.Ab5+ Rd4 6.Ag1‡

3…T×c2 4.D×d5+

×d5 5.Ab5+ Rd4 6.Td3‡

Adolf KRAEMER

dédié à J. Halumbirek pour ses 60

ans

Deutsche Schachzeitung 1951





















‡6 (8+11) C+

1.Rd7? [2.e8=D‡]

mais 1…Ce5+!

1.Rf8!

[2.e8=D‡]

1…Ah6+ 2.g7 [3.e8=D‡] A×g7+

3.Re8 [4.c7+ D×c7 5.b×c7+

×c7/Ra7 6.b8=D/Cc6,b8=D‡] Ae5

4.Rd7 [5.e8=D‡]

1…Dh6+ 2.g7 [3.e8=D‡] D×g7+

3.Re8 [4.c7+ A×c7 5.b×c7+

×c7/Ra7 6.b8=D/Cc6,b8=D‡]

2…De6 3.c7+ A×c7

4.b×c7+ R×c7 5.b8=D+ Rd7

6.Dd8,Tb7‡

2…D×c6 3.C×c6+ R×b7

4.Ca5+ Ra8 5.e8=D+ Ab8 6.Dc6‡

12/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Christoph JOHANNESSOHN

Die Schwalbe 1951

3° Prix





















‡5 (7+6) C+

1.Aa1!

[2.Td4‡] Af2 2.Af6 [3.Tc3‡]

d4 3.A×d4 [4.Ce5‡] C~ 4.Aa1

[5.Td4‡]

2…Ae1 3.Ce5+ Rc5 4.Ad8

[5.Td5‡]

Herbert GRASEMANN

dédié à J. Halumbirek pour ses 60

ans

Deutsche Schachzeitung 1951





















‡5 (6+9) C+

1.A×h7+?

mais 1…Rd5!

1.Ad~? [2.A×h7+]

mais 1…Ce6!

1.Cb6!

[2.A×h7‡] Th1 2.Ah2

[3.A×h7‡] T×h2 3.Ca4 [4.C×c3‡]

c2 4.A×h7+ Rd5 5.Ce3‡

3…Ce5 4.Cc5+ Rd4

5.D×e5‡

13/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Hans Peter REHM

dédié à E. Zepler

The Problemist 1969-70

1° Recommandé





















‡6 (5+8) C+

1.Te5? [2.Tc5‡]

mais 1…Ag1!

1.Te4? [2.Tc4‡]

mais 1…Cb6!

1.Tf6!

[2.T×f3‡] Te3 2.Tf5 [3.Tc5‡]

b6 3.Te5 [4.T×e3‡] Tf3 4.Te4

[5.Tc4‡] 5.Tc4+ b×c4 6.Ce4‡

Stephan EISERT

Deutsche Schachzeitung 1968





















‡6 (7+6) C+

1.Ced4!

[2.Cb3 [3.Cc1 [4.Cd3‡]]

d2 3.C×d2 [4.Cb3 [5.Cc1

[6.Cd3‡]]]] Ad2 2.Cc2 b5 3.Ccd4

a5,Ac3,Ae1 4.Cb3 [5.Cc1,Cc5]

3…Ab4 4.Cb3 [5.Cc1

[6.Cd3‡]] Ad2 5.Cc5 [6.Cd3‡]

3…Ac1,Af4,b4 4.Ce6

[5.Cc5,Cf8]

3…Ae3 4.Ce6 [5.Cf8

[6.Cg6‡]] Ac5 5.C×c5 [6.Cd3‡]

3…b6 4.Cc6+ Rf4

5.Cce7 [6.Cg6‡]

14/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Adolf KRAEMER

dédié à J. Breuer

Süddeutsche Schachzeitung 1953





















‡4 (7+11) C+

1.d4!

[2.Db2‡] D×d4 2.Tf7 [3.Dh1+

d1 4.D×d1‡] Dh8 3.Tg7 [4.Db2‡]

×g7 4.Dh1‡

2…Db4 3.D×b4 [4.Db2,De1‡]

2…Db6+ 3.D×b6 [4.Db2‡]

2…Df6+ 3.T×f6

[4.Db2,Dh1‡]

Erich ZEPLER

Mémorial W. Von Holzhausen

1951

6° Prix





















‡5 (6+5) C+

1.Ag8? blocus

mais 1…Tb4!

1.Ag6!

[2.A×c2‡] Te4 2.Ah7 Te2

3.Ag8 [4.Ab3‡] Th2+ 4.R×h2
[5.Ab3‡]

3…Te6 4.Af7 T~

5.Ab3‡

15/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Hans Peter REHM

StrateGems 2002

Prix spécial





















‡5 (9+12) C+

1.Ae6!

[2.Dh5 [3.D×f5,A×f5‡]] Th1

2.Aa2 [3.Dc4‡] Tc1 3.Db3
[4.D×b4+ Tc4 5.D×c4‡] Aa6

4.Dd5+ c×d5 5.A×d5‡

Camillo GAMNITZER

Schach-Aktiv 1987

1° Prix





















‡6 (9+9) C+

1.Cg1!

[2.Ce2 [3.Te5‡]] A×d5 2.Ch3

[3.Tg4+ Rf5 4.Tf4+ Re6 5.Cg5‡]

~ 3.Te5+ Rd4 4.Th5+ Re4

5.Cf2+ Rf4 6.Ae5‡

16/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Hans Peter REHM

Schweizerische Schachzeitung

1988

Prix





















‡5 (10+12) C+

1.Ag5!

[2.Af6 [3.A×f5,T×d4‡] D×f6

3.T×d4+ D×d4 4.A×f5‡

(2…D×c5 3.A×f5+,T×d4+)

]

1…Ae5 2.c6 [3.A×f5+,Cc5+] Ah8

3.Af6,Ag7 [4.A×f5,T×d4‡] D×f6

4.T×d4+ D×d4 5.A×f5‡

(3…Dc5

4.A×f5+,T×d4+,C×c5+)

1…D×c5 2.Af4 [3.Ae5 [4.A×f5‡]
D

×e5 4.T×d4+ D×d4 5.A×f5‡]

f8 3.Ah2 [4.Cc5+ D×c5 5.d3‡]

(2…Db5 3.T×b5 [4.A×f5‡] d×c3

4.A×f5+,Tb4+)

Valery SHANSHIN

Sächsische Zeitung 1986

1° Mention d'Honneur





















‡4 (9+11) C+

1.a4!

[2.Aa3 [3.Te7‡] Af6 3.T×f6

[4.Te6‡]]

1…Cf3 2.Tf5+ Re4+ 3.Tf6+ Re5

4.Te6‡

1…A×c6 2.Te7+ Rd6+ 3.Tg7+ Re5
4.Tg5‡

(1…Ag7 2.T×g7,A×g7+)

17/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Friedrich CHLUBNA

Dieter KUTZBORSKI

Mémorial H. Grasemann, Die

Schwalbe 1986-88

3° Prix





















‡5 (10+13) C+

1.Rf1!

[2.f4+ g×f4 3.Cg4+ Re4

4.Chf2+ Rf3 5.Th3‡]

1…T×g7 2.De8+ Rd6 3.Ce4+ f×e4
4.Dd7+ Re5 5.f4‡

3…Rc7 4.Dd7+

b8,Rb6 5.Db7‡

1…D×a2 2.Dc7+ Re6 3.Cf4+ g×f4

4.Dd7+ Re5 5.Cg4‡

Werner SPECKMANN

Die Schwalbe 1938





















‡5 (2+10) C+

1.Tg5!

[2.Ta5‡] d5 2.Tg8 [3.Ta8‡] d4

3.Tg5 [4.Ta5‡] Ac6 4.Ta5+ Aa4

5.T×a4‡

3…Ad5 4.T×d5

[5.Ta5‡]

3…d5 4.Tg8 [5.Ta8‡]

18/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Stefan SCHNEIDER

Schach Express 1948

4° Mention d'Honneur





















‡4 (11+5) C+

1.Tg3!

[2.d3‡] Td1 2.Rh7 Td×d2

3.Tg4+ Rf3/Rd3/Rf5
4.Tf4/Cb4/Cg7‡

2…f6 3.Rg6 [4.Af5,Ag2‡]

×f2 4.Te3‡

2…Tee1 3.Tc3 [4.f3‡] Tf1,Te3

4.T(×)e3‡

Hans Peter REHM

Deutsche Schachblätter 1965

3° Mention d'Honneur





















‡5 (7+11) C+

1.Cd3? [2.T×d5,A×c3‡]

mais 1…e5!

1.Cb8!

[2.Cc6‡] Rb4 2.Cd3+ Tg×d3

3.Ca6+ Ra5 4.T×d5+ T×d5

5.A×c3‡

2…Td×d3 3.Ca6+ Ra5

4.A×c3+ T×c3 5.T×d5‡

19/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Hans Peter REHM

Problem (before 2008) (v)





















‡5 (9+7) C+

1.h×g5? [2.Cf4‡]

mais 1…Ad2!

1.Te6!

[2.T×d6‡] Ag3 2.f4

[3.T×d6‡] A×f4 3.Te4 [4.Cc3‡] Ad2

4.h×g5 A~ 5.Cf4;Cc3‡

Hans Peter REHM

Probleemblad 1966

1° Mention d'Honneur





















‡5 (9+11) C+

1.Cd3? [2.T×d5,A×c3‡]

mais 1…Ce5!

1.Tb4!

[2.Ta4‡] Ra6 2.Cd3

[3.Cc5+,Tb6+] Te×d3 3.Tb6+ Ra5

4.T×d5+ T×d5 5.A×c3‡

2…Td×d3 3.Tb6+ Ra5

4.A×c3+ T×c3 5.T×d5‡

20/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Hans Peter REHM

Die Schwalbe 1974

1° Mention d'Honneur





















‡6 (7+6) C+

1.Af4? [2.Cd6‡]

mais 1…Cc4!

1.Cg8!

[2.Cf6‡] Rd5 2.Rf7 [3.Cf6‡]

c5 3.Cge7+ Re4 4.Af4 [5.Cd6‡] Cc4
5.A×c4 [6.Cd6‡] d3 6.Ad5‡

Stephan EISERT

Hans Peter REHM

Deutsche Schachblätter 1993

Mention d'Honneur





















‡6 (8+10) C+

1.Tb5+!

1…Rc1 2.Tc5+ Rb1 3.Cd3

[4.Tf1,Tc1‡] Af5+ 4.Tf×f5

[5.Tf1,Tc1‡] C×f6+ 5.T×f6

[6.Tf1,Tc1‡]

4…Cg5+

5.T×g5 [6.Tc1‡]

3…C×f6+ 4.T×f6

[5.Tf1,Tc1‡] Af5+ 5.C×f5 [6.Tc1‡]

3…Cg5+ 4.T×g5

[5.Tf1‡] T×f6 5.Tb5+ Cb4 6.T×b4‡

4…Af5+

5.Tg×f5 [6.Tf1‡]

1…Cb4 2.T×b4+ Rc1 3.Cd3+

×d2 4.Tb2+ Rc3 5.Cd5+ Rc4

6.Tb4‡

21/21

Sociedad Española de Problemistas de Ajedrez

FUNDADA EN 1935 por Antoni F. Argüelles

Camillo GAMNITZER

Die Schwalbe 1985





















‡6 (7+14) C+

1.Ae5!

[2.Dd7+ e6 3.D×e6‡] Cf6

2.A×c3 [3.De5‡] Cg4 3.Ae5

[4.Dd7+ e6 5.D×e6‡] Cf6 4.Ab2

[5.De5‡] Cd7,Cg4 5.A×g6+ R×g6

6.D×c2‡