MESON Chess Problem Database
Problem Display
PID: 239777 (1bB5/r3PKp1/1PPk4/N5B1/2P2R2/p2N4/q4rQ1/7b w - - 0 1)
Hicks, Geoffrey K
The Problemist, 1988
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.c5#
- 1...Qxc4+
- 2.Sxc4#
- 1...Qa1
- 2.c5#
- 1...Qb2
- 2.c5#
- 1...Qd2
- 2.c5#
- 1...Qe2
- 2.c5#
- 1...Rb2
- 2.Rd4#
- 1...Rc2
- 2.Rd4#
- 1...Rd2
- 2.Rd4#
- 1...Re2
- 2.Rd4#
- 1...Rxg2
- 2.Rd4#
- 1...Rxf4+
- 2.Bxf4#
- 1...Rxa5
- 2.e8S#
- 1...Ra6
- 2.Sb7#
- 2.e8S#
- 1...Rb7
- 2.Sxb7#
- 1...Rxe7+
- 2.Bxe7#
- 1...Ra8
- 2.Sb7#
- 2.e8S#
- 1...Bc7
- 2.e8S#
- 1...Qb1
- Tries
- 1.Kg6?
- threat
- 2.Rd4#
- 2.c5#
- 2.e8S#
- 1...Qxc4
- 2.Sxc4#
- 2.e8S#
- 1...Rxg2
- 2.Rd4#
- 2.e8S#
- 1...Rxf4
- 2.c5#
- 2.e8S#
- 1...Rxa5
- 2.e8S#
- 1...Rxe7
- 2.Rd4#
- 2.c5#
- 1...Bxg2
- 2.e8S#
- 1...Qa1
- 2.c5#
- 2.e8S#
- 1...Qb2
- 2.c5#
- 2.e8S#
- 1...Qc2
- 2.Rd4#
- 2.e8S#
- 1...Qe2
- 2.Rd4#
- 2.c5#
- 1...Rc2
- 2.Rd4#
- 2.e8S#
- 1...Re2
- 2.Rd4#
- 2.c5#
- 1...Rf3
- 2.Rd4#
- 2.e8S#
- 1...Rd7!
- threat
- 1.Kf8?
- threat
- 2.c5#
- 2.e8S#
- 1...Rxf4+
- 2.Bxf4#
- 1...Qxc4
- 2.Sxc4#
- 2.e8S#
- 1...Rxg2
- 2.Rd4#
- 2.e8S#
- 1...Rxa5
- 2.e8S#
- 1...Rxe7
- 2.Bxe7#
- 2.c5#
- 1...Bxg2
- 2.e8S#
- 1...Qc2
- 2.e8S#
- 1...Qe2
- 2.c5#
- 1...Rc2
- 2.Rd4#
- 2.e8S#
- 1...Re2
- 2.Rd4#
- 2.c5#
- 1...Rf3
- 2.e8S#
- 1...Rd7!
- threat
- 1.Kg8?
- threat
- 2.Rd4#
- 2.e8S#
- 1...Qxc4+
- 2.Sxc4#
- 1...Rxf4
- 2.e8S#
- 1...Rxa5
- 2.e8S#
- 1...Rxe7
- 2.Rd4#
- 1...Bxg2
- 2.e8S#
- 1...Qa1
- 2.c5#
- 2.e8S#
- 1...Qb2
- 2.c5#
- 2.e8S#
- 1...Qe2
- 2.Rd4#
- 2.c5#
- 1...Re2
- 2.Rd4#
- 1...Rd7!
- threat
- 1.Bf6?
- threat
- 2.Be5#
- 2.Rd4#
- 1...Qxc4+
- 2.Sxc4#
- 1...Rxe7+
- 2.Bxe7#
- 1...Rxa5
- 2.e8S#
- 1...Bxg2
- 2.Be5#
- 1...gxf6
- 2.Rd4#
- 1...Qa1
- 2.c5#
- 1...Qb2
- 2.c5#
- 1...Qe2
- 2.Rd4#
- 2.c5#
- 1...Re2
- 2.Rd4#
- 1...Rxf4!
- threat
- 1.Bf5?
- threat
- 2.Rd4#
- 1...Qxc4+
- 2.Sxc4#
- 1...Rxe7+
- 2.Bxe7#
- 1...Rxf4
- 2.Bxf4#
- 1...Rxa5
- 2.e8S#
- 1...Qa1
- 2.c5#
- 1...Qb2
- 2.c5#
- 1...Bxg2!
- threat
- 1.Be6?
- threat
- 2.c5#
- 1...Rxf4+
- 2.Bxf4#
- 1...Rxe7+
- 2.Bxe7#
- 1...Qxc4
- 2.Sxc4#
- 1...Rxa5
- 2.e8S#
- 1...Rc2
- 2.Rd4#
- 1...Qc2!
- threat
- 1.Bd7?
- threat
- 2.e8S#
- 1...Qxc4+
- 2.Sxc4#
- 1...Rxf4+
- 2.Bxf4#
- 1...Qe2
- 2.c5#
- 1...Re2
- 2.Rd4#
- 1...Rxd7!
- threat
- 1.Rxf2?
- threat
- 2.Bf4#
- 2.Qh2#
- 2.Qg3#
- 1...Qxc4+
- 2.Sxc4#
- 1...Rxe7+
- 2.Bxe7#
- 1...Rxa5
- 2.e8S#
- 1...Bxg2
- 2.Bf4#
- 1...Qa1
- 2.c5#
- 1...Qb2
- 2.c5#
- 1...Qd2
- 2.c5#
- 1...Qe2
- 2.c5#
- 1...Qxf2+!
- threat
- 1.Qxh1?
- threat
- 2.Qd5#
- 1...Qxc4+
- 2.Sxc4#
- 1...Rxf4+
- 2.Bxf4#
- 1...Rxe7+
- 2.Bxe7#
- 1...Rxa5
- 2.e8S#
- 1...Rg2
- 2.Rd4#
- 1...Rf3!
- threat
- 1.c7?
- threat
- 2.e8S#
- 1...Qxc4+
- 2.Sxc4#
- 1...Rxf4+
- 2.Bxf4#
- 1...Qe2
- 2.c5#
- 1...Re2
- 2.Rd4#
- 1...Rxc7!
- threat
- 1.Kg6?
- Keys
- 1.Bb7!
- threat
- 2.e8S#
- 1...Qxc4+
- 2.Sxc4#
- 1...Rxf4+
- 2.Bxf4#
- 1...Rxb7
- 2.Sxb7#
- 1...Qe2
- 2.c5#
- 1...Re2
- 2.Rd4#
- threat
- 1.Bb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 11
- Sets
- Q(b);N_PINP(C),P_PINP(I)::P(C)
- Q(b);CHECK,P_PINP(I),XP(C)::S(E),XQ(b)
- R(c);N_PINR(D)::R(D)
- R(c);N_PINR(D),XQ(A)::R(D)
- R(c);CHECK,OGATE,XR(D)::B(F),XR(c)
- R(f);OGATE,XS(E)::P=S
- R(f);N_GUARD::S(E),XR(f)
- R(f);CHECK,OGATE,XP(I)::B(F),XR(f)
- B(h);OGATE::P=S
- Tries
- Try
- K(J);N_SPINP(C),N_SPINR(D),S_FLIGHT
- Threat
- DUALS(3)
- Vars
- R(f);XS(E)::P=S
- B(a);XQ(A)::P=S
- Refutation
- R(f);
- Try
- K(J);N_SPINP(C),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- R(c);CHECK,OGATE,XR(D)::B(F),XR(c)
- R(f);XS(E)::P=S
- B(a);XQ(A)::P=S
- Q(b);::P=S
- Q(b);::P(C)
- R(c);::P=S
- Refutation
- R(f);
- Try
- K(J);N_SPINR(D),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,XP(C)::S(E),XQ(b)
- R(c);XR(D)::P=S
- R(f);XS(E)::P=S
- R(f);XP(I)::R(D)
- B(a);XQ(A)::P=S
- R(c);::R(D)
- Refutation
- R(f);
- Try
- B(F);N_SPINR(D)
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,P_PINP(I),XP(C)::S(E),XQ(b)
- R(f);CHECK,OGATE,XP(I)::B(F),XR(f)
- R(f);OGATE,XS(E)::P=S
- B(a);XQ(A)::B(F)
- P(g);XB(F)::R(D)
- Q(b);N_PINP(C),P_PINP(I)::P(C)
- R(c);::R(D)
- Refutation
- R(c);P_PINB(F),XR(D)
- Try
- B(K);N_SPINR(D)
- Threat
- R(D)
- Vars
- Q(b);CHECK,P_PINP(I),XP(C)::S(E),XQ(b)
- R(f);CHECK,OGATE,XP(I)::B(F),XR(f)
- R(c);OGATE,P_PINB(K),XR(D)::B(F),XR(c)
- R(f);OGATE,XS(E)::P=S
- Q(b);N_PINP(C),P_PINP(I)::P(C)
- Refutation
- B(a);XQ(A)
- Try
- B(K);N_SPINP(C),P_SPINP(I)
- Threat
- P(C)
- Vars
- R(c);CHECK,OGATE,XR(D)::B(F),XR(c)
- R(f);CHECK,OGATE,XP(I)::B(F),XR(f)
- Q(b);P_PINB(K),XP(C)::S(E),XQ(b)
- R(f);N_PINP(I),XS(E)::P=S
- R(c);N_PINR(D)::R(D)
- Refutation
- Q(b);
- Try
- B(K);
- Threat
- P=S
- Vars
- Q(b);CHECK,XP(C)::S(E),XQ(b)
- R(c);CHECK,OGATE,XR(D)::B(F),XR(c)
- Q(b);N_PINP(C)::P(C)
- R(c);N_PINR(D)::R(D)
- Refutation
- R(f);XB(K)
- Try
- R(D);N_SPINR(D),XR(c)
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK,P_PINP(I),XP(C)::S(E),XQ(b)
- R(f);CHECK,OGATE,XP(I)::B(F),XR(f)
- R(f);OGATE,XS(E)::P=S
- B(a);XQ(A)::B(F)
- Q(b);N_PINP(C),P_PINP(I)::P(C)
- Refutation
- Q(b);CHECK,N_PINP(C),P_PINP(I),XR(D)
- Try
- Q(A);XB(a)
- Threat
- QAR1(A)
- Vars
- Q(b);CHECK,P_PINP(I),XP(C)::S(E),XQ(b)
- R(c);CHECK,OGATE,XR(D)::B(F),XR(c)
- R(f);CHECK,OGATE,XP(I)::B(F),XR(f)
- R(f);OGATE,XS(E)::P=S
- R(c);N_PINR(D)::R(D)
- Refutation
- R(c);
- Try
- P(H);
- Threat
- P=S
- Vars
- Q(b);CHECK,XP(C)::S(E),XQ(b)
- R(c);CHECK,OGATE,XR(D)::B(F),XR(c)
- Q(b);N_PINP(C)::P(C)
- R(c);N_PINR(D)::R(D)
- Refutation
- R(f);XP(H)
- Try
- Actual
- B(K);
- Threat
- P=S
- Vars
- Q(b);CHECK,XP(C)::S(E),XQ(b)
- R(c);CHECK,OGATE,XR(D)::B(F),XR(c)
- R(f);XB(K)::S(E),XR(f)
- Q(b);N_PINP(C)::P(C)
- R(c);N_PINR(D)::R(D)
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).