MESON Chess Problem Database
Problem Display
PID: 59862 (7Q/3b1BB1/3N4/1p1rP1K1/3kp3/3p4/5R2/2R2N2 w - - 0 1)
Crancer, George A
6th HM., Brisbane Courier, 1924
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Rxe5+
- 2.Bxe5#
- 1...Rxd6
- 2.exd6#
- 1...Bf5
- 2.Sxf5#
- 1...Bc6
- 2.Sf5#
- 1...Be8
- 2.Sf5#
- 1...d2
- 2.Rxd2#
- 1...e3
- 2.Rf4#
- 1...b4
- 2.Rc4#
- 1...Rxe5+
- Tries
- 1.Sxb5+?
- 1...Rxb5
- 2.Rc4#
- 1...Bxb5!
- 1...Rxb5
- 1.Be6?
- threat
- 2.Sf5#
- 1...Rxd6
- 2.exd6#
- 1...d2
- 2.Rxd2#
- 1...e3
- 2.Rf4#
- 2.Qh4#
- 1...Bxe6!
- threat
- 1.Rb2?
- threat
- 2.Rb4#
- 1...Rxe5+
- 2.Bxe5#
- 1...d2
- 2.Rxd2#
- 1...b4
- 2.Rc4#
- 2.Rxb4#
- 1...Rc5!
- threat
- 1.Rf4?
- threat
- 2.Rxe4#
- 1...Rxe5+
- 2.Bxe5#
- 1...Rxd6
- 2.exd6#
- 1...Bf5
- 2.Sxf5#
- 1...d2!
- threat
- 1.Qh1?
- threat
- 2.Qxe4#
- 1...Rxd6
- 2.exd6#
- 1...Bf5
- 2.Sxf5#
- 1...e3
- 2.Rf4#
- 2.Qe4#
- 2.Qxd5#
- 1...Rxe5+!
- threat
- 1.Qh7?
- threat
- 2.Qxe4#
- 1...Rxd6
- 2.exd6#
- 1...Bf5
- 2.Sxf5#
- 1...e3
- 2.Rf4#
- 2.Qe4#
- 1...Rxe5+!
- threat
- 1.Qa8?
- threat
- 2.Qxd5#
- 2.Qa1#
- 1...Rxd6
- 2.Qa1#
- 2.exd6#
- 2.e6#
- 1...d2
- 2.Rxd2#
- 2.Qxd5#
- 1...Rc5
- 2.Qxe4#
- 1...Bc6
- 2.Sf5#
- 2.Qa1#
- 1...Be6
- 2.Qa1#
- 1...Rxe5+!
- threat
- 1.Sxb5+?
- Keys
- 1.Qd8!
- 1...Rxe5+
- 2.Sf5#
- 1...Rxd6
- 2.exd6#
- 1...d2
- 2.Rxd2#
- 1...Rc5
- 2.Sf5#
- 1...Bh3
- 2.Sxb5#
- 1...Bg4
- 2.Sxb5#
- 1...Bf5
- 2.Sxb5#
- 2.Sxf5#
- 1...Bc6
- 2.Sf5#
- 1...Be6
- 2.Sxb5#
- 1...Bc8
- 2.Sxb5#
- 1...Be8
- 2.Sf5#
- 1...e3
- 2.Rf4#
- 1...b4
- 2.Rc4#
- 1...Rxe5+
- 1.Qd8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- R(e);CHECK,OGATE,P_SPINR(e),XP(D)::B(H),XR(e)
- R(e);N_PINP(D),XS(F)::B(H)+P(D),XR(e)
- B(f);N_GUARD,N_PINP(D)::S(F),XB(f)
- B(f);N_GUARD::S(F)
- P(a);OGATEB::R(C),XP(a)
- P(c);OGATEB::R(C)
- P(d);N_GUARD::R1(A)
- Tries
- Try
- S(F);CHECK,XP(d)
- Vars
- R(e);XS(F)::R1(A)
- Refutation
- B(f);XS(F)
- Try
- B(G);
- Threat
- S(F)
- Vars
- R(e);N_PINP(D),XS(F)::B(H)+P(D),XR(e)
- P(a);OGATEB::R(C),XP(a)
- Refutation
- B(f);XB(G)
- Try
- R(C);
- Threat
- R(C)
- Vars
- R(e);CHECK,OGATE,P_SPINR(e),XP(D)::B(H),XR(e)
- P(a);OGATEB::R(C),XP(a)
- Refutation
- R(e);
- Try
- R(C);P_PINP(c)
- Threat
- R1(C),XP(c)
- Vars
- R(e);CHECK,OGATE,P_SPINR(e),XP(D)::B(H),XR(e)
- R(e);N_PINP(D),XS(F)::B(H)+P(D),XR(e)
- B(f);N_GUARD,N_PINP(D)::S(F),XB(f)
- Refutation
- P(a);
- Try
- Q(I);
- Threat
- QAR1(I),XP(c)
- Vars
- R(e);N_PINP(D),XS(F)::B(H)+P(D),XR(e)
- B(f);N_GUARD,N_PINP(D)::S(F),XB(f)
- Refutation
- R(e);CHECK,P_SPINR(e),XP(D)
- Try
- Q(I);
- Threat
- QAR1(I),XP(c)
- Vars
- R(e);N_PINP(D),XS(F)::B(H)+P(D),XR(e)
- B(f);N_GUARD,N_PINP(D)::S(F),XB(f)
- Refutation
- R(e);CHECK,P_SPINR(e),XP(D)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(e);OGATE::QAR1(I),XP(c)
- B(f);::QAB(I)
- Refutation
- R(e);CHECK,P_SPINR(e),XP(D)
- Try
- Actual
- Q(I);
- Vars
- R(e);CHECK,P_SPINR(e),S_CUTB(f),XP(D)::S(F)
- R(e);N_PINP(D),XS(F)::B(H)+P(D),XR(e)
- P(a);OGATEB::R(C),XP(a)
- R(e);S_CUTB(f)::S(F)
- B(f);N_GUARD,S_CUTR(e)::S(F),XP(d)
- B(f);N_GUARD::S(F)
- P(c);OGATEB::R(C)
- P(d);N_GUARD::R1(A)
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).