MESON Chess Problem Database
Problem Display
PID: 51118 (4n2n/7R/b2PBkp1/1r5p/3P3P/6N1/1P2RN2/5K2 w - - 0 1)
Clark, Cecil Henry Douglas
Manchester Guardian, 1949
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Sf7
- 2.Rxf7#
- 1...Sf7
- Tries
- 1.Sxh5+?
- 1...Rxh5
- 2.Sg4#
- 1...gxh5!
- 1...Rxh5
- 1.Bc4?
- threat
- 2.Sfe4#
- 2.Re6#
- 1...Sxd6
- 2.Re6#
- 1...g5
- 2.Re6#
- 1...Re5
- 2.dxe5#
- 1...Rf5
- 2.Se4#
- 2.Re6#
- 1...Bb7
- 2.Re6#
- 1...Bc8
- 2.Sfe4#
- 1...Sc7
- 2.Sfe4#
- 1...Sg7
- 2.Sfe4#
- 1...Rd5!
- threat
- 1.Bd5?
- threat
- 2.Sfe4#
- 2.Re6#
- 1...Rxb2
- 2.Sfe4#
- 1...Sxd6
- 2.Re6#
- 1...g5
- 2.Re6#
- 1...Rb3
- 2.Sfe4#
- 1...Rb4
- 2.Sfe4#
- 1...Ra5
- 2.Sfe4#
- 1...Rc5
- 2.Sfe4#
- 1...Rb6
- 2.Sfe4#
- 1...Rb7
- 2.Sfe4#
- 1...Rb8
- 2.Sfe4#
- 1...Bc8
- 2.Sfe4#
- 1...Sc7
- 2.Sfe4#
- 1...Sg7
- 2.Sfe4#
- 1...Rxd5!
- threat
- 1.Bd7?
- threat
- 2.Sfe4#
- 2.Sge4#
- 2.Re6#
- 1...Rxb2
- 2.Sfe4#
- 2.Sge4#
- 1...Sxd6
- 2.Re6#
- 1...g5
- 2.Re6#
- 1...Rd5
- 2.Sfe4#
- 2.Sge4#
- 1...Rb3
- 2.Sfe4#
- 2.Sge4#
- 1...Rb4
- 2.Sfe4#
- 2.Sge4#
- 1...Ra5
- 2.Sfe4#
- 2.Sge4#
- 1...Rc5
- 2.Sfe4#
- 2.Sge4#
- 1...Re5
- 2.dxe5#
- 1...Rf5
- 2.Se4#
- 1...Rg5
- 2.Sfe4#
- 2.Sge4#
- 1...Rb6
- 2.Sfe4#
- 2.Sge4#
- 1...Rb7
- 2.Sfe4#
- 2.Sge4#
- 1...Rb8
- 2.Sfe4#
- 2.Sge4#
- 1...Bb7
- 2.Re6#
- 1...Sc7
- 2.Sfe4#
- 2.Sge4#
- 1...Sg7!
- threat
- 1.Sxh5+?
- Keys
- 1.Bg8!
- threat
- 2.Sfe4#
- 2.Re6#
- 1...Rxb2
- 2.Sfe4#
- 1...Sxd6
- 2.Re6#
- 1...g5
- 2.Re6#
- 1...Rd5
- 2.Sfe4#
- 1...Rb3
- 2.Sfe4#
- 1...Rb4
- 2.Sfe4#
- 1...Ra5
- 2.Sfe4#
- 1...Rc5
- 2.Sfe4#
- 1...Re5
- 2.dxe5#
- 1...Rf5
- 2.Se4#
- 1...Rg5
- 2.Sfe4#
- 1...Rb6
- 2.Sfe4#
- 1...Rb7
- 2.Sfe4#
- 1...Rb8
- 2.Sfe4#
- 1...Bb7
- 2.Re6#
- 1...Bc8
- 2.Sfe4#
- 1...Sc7
- 2.Sfe4#
- 1...Sg7
- 2.Sfe4#
- 1...Sf7
- 2.Rxf7#
- threat
- 1.Bg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 18
- REMOVED MATES = 0
- Sets
- S(g);N_GUARD::R1(J),XS(g)
- Tries
- Try
- S(E);CHECK,XP(b)
- Vars
- R(a);P_PINR(C),XS(E)::S(D)
- Refutation
- P(e);XS(E)
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- S(f);XP(H)::R1(C)
- P(e);::R1(C)
- R(a);OGATE::P(F),XR(a)
- B(c);::R1(C)
- B(c);::S(D)
- S(f);::S(D)
- Refutation
- R(a);
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- R(a);P_PINR(C),XP(B)::S(D)
- S(f);XP(H)::R1(C)
- P(e);::R1(C)
- R(a);P_PINR(C)::S(D)
- B(c);::S(D)
- S(f);::S(D)
- Refutation
- R(a);P_PINR(C),XB(I)
- Try
- B(I);
- Threat
- DUALS(3)
- Vars
- S(f);XP(H)::R1(C)
- P(e);::R1(C)
- R(a);OGATE,P_PINR(C)::P(F),XR(a)
- R(a);P_PINR(C),P_PINS(D)::S(E)
- B(c);::R1(C)
- Refutation
- S(f);
- Try
- Actual
- B(I);
- Threat
- DUALS(2)
- Vars
- R(a);P_PINR(C),XP(B)::S(D)
- S(f);XP(H)::R1(C)
- P(e);::R1(C)
- R(a);P_PINR(C)::S(D)
- R(a);OGATE,P_PINR(C)::P(F),XR(a)
- R(a);P_PINR(C),P_PINS(D),SBLOCK::S(E)
- B(c);::R1(C)
- B(c);::S(D)
- S(f);::S(D)
- S(g);N_GUARD::R1(J),XS(g)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).