MESON Chess Problem Database
Problem Display
PID: 256951 (6k1/P2pB3/3N1P1R/1pPqPp1B/8/1RP5/KQ3P2/8 w - - 0 1)
Rice, John Michael
StrateGems, 2021
#2
13 + 5
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Bf7#
- 1...Qg2
- 2.Bf7#
- 1...Qxb3+
- 2.Qxb3#
- 1...Qf3
- 2.Bf7#
- 1...Qc4
- 2.a8Q#
- 2.a8R#
- 1...Qe4
- 2.Bf7#
- 1...Qc6
- 2.Bf7#
- 1...Qe6
- 2.a8Q#
- 2.a8R#
- 1...Qb7
- 2.Bf7#
- 1...Qf7
- 2.Bxf7#
- 1...Qa8
- 2.Bf7#
- 1...Qd1
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd2
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd3
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd4
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qxc5
- 2.Bf7#
- 1...Qxe5
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qh1
- Tries
- 1.f4?
- 1...Qxb3+
- 2.Qxb3#
- 1...Qxc5
- 2.Bf7#
- 2.Qg2#
- 1...Qxe5
- 2.Bf7#
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...Qxd6
- 2.Qg2#
- 1...Qh1
- 2.Bf7#
- 1...Qg2
- 2.Bf7#
- 2.Qxg2#
- 1...Qf3
- 2.Bf7#
- 1...Qc4
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...Qe4
- 2.Bf7#
- 1...Qc6
- 2.Bf7#
- 1...Qe6
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...Qb7
- 2.Bf7#
- 1...Qf7
- 2.Bxf7#
- 1...Qa8
- 2.Bf7#
- 1...Qd1
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd2
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd3
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd4
- 2.Bf7#
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...b4!
- 1...Qxb3+
- 1.c4?
- threat
- 2.Rg3#
- 1...Qxc4
- 2.a8Q#
- 2.a8R#
- 1...Qxe5
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qg2
- 2.Bf7#
- 1...Qf3
- 2.Bf7#
- 1...Qe4
- 2.Bf7#
- 1...Qf7
- 2.Bxf7#
- 1...Qd1
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd2
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd3
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd4
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...f4!
- threat
- 1.c6?
- threat
- 2.a8Q#
- 2.a8R#
- 1...Qxb3+
- 2.Qxb3#
- 1...Qxc6
- 2.Bf7#
- 1...Qxe5
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...dxc6
- 2.a8Q#
- 2.a8R#
- 1...b4
- 2.a8Q#
- 2.a8R#
- 1...Qh1
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qg2
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qf3
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qc4
- 2.a8Q#
- 2.a8R#
- 1...Qe4
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qe6
- 2.a8Q#
- 2.a8R#
- 1...Qf7
- 2.Bxf7#
- 1...Qd1
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd2
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd3
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd4
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qc5
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...f4
- 2.a8Q#
- 2.a8R#
- 1...Qxd6!
- threat
- 1.e6?
- threat
- 2.Bf7#
- 1...Qxe6
- 2.a8Q#
- 2.a8R#
- 1...Qxb3+!
- threat
- 1.f7+?
- 1...Kg7
- 2.Sxf5#
- 2.f8Q#
- 1...Qxf7!
- 1...Kg7
- 1.f4?
- Keys
- 1.f3!
- threat
- 2.Qg2#
- 1...Qxb3+
- 2.Qxb3#
- 1...Qxf3
- 2.Bf7#
- 1...Qxe5
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qc4
- 2.a8Q#
- 2.a8R#
- 1...Qe4
- 2.Bf7#
- 1...Qf7
- 2.Bxf7#
- 1...Qd2
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- 1...Qd4
- 2.Bf7#
- 2.a8Q#
- 2.a8R#
- threat
- 1.f3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(b);N_GUARD,N_PINR(D)::B(H)
- Q(b);CHECK,OGATE,XR(D)::QAB(B),XQ(b)
- Q(b);N_GUARD::P=Q
- Q(b);N_GUARD::B(H),XQ(b)
- Q(b);N_GUARD,N_PINR(D),P_PINP(L)::B(H)
- Q(b);N_GUARD,N_PINR(D),XP(F)::B(H)
- Tries
- Try
- P(C);
- Vars
- Q(b);CHECK,OGATE,XR(D)::QAB(B),XQ(b)
- Q(b);N_GUARD,N_PINR(D),XS(I)::QAR(B)
- Q(b);N_GUARD,N_PINR(D)::B(H)
- Q(b);N_GUARD::B(H),XQ(b)
- Q(b);N_GUARD,N_PINR(D),P_PINP(L)::B(H)
- Refutation
- P(a);
- Try
- P(E);N_SPINR(D)
- Threat
- R(D)
- Vars
- Q(b);N_GUARD,P_PINR(D),XP(E)::P=Q
- Q(b);N_GUARD::B(H)
- Q(b);N_GUARD::B(H),XQ(b)
- Refutation
- P(c);
- Try
- P(F);
- Threat
- P=Q
- Vars
- Q(b);CHECK,OGATE,XR(D)::QAB(B),XQ(b)
- Q(b);N_GUARD,N_PINR(D),XP(F)::B(H)
- P(d);XP(F)::P=Q
- P(a);::P=Q
- Q(b);::P=Q
- Q(b);N_GUARD::B(H),XQ(b)
- P(c);::P=Q
- Refutation
- Q(b);N_PINR(D),XS(I)
- Try
- P(G);
- Threat
- B(H)
- Vars
- Q(b);N_GUARD,XP(G)::P=Q
- Refutation
- Q(b);CHECK,XR(D)
- Try
- P(J);CHECK
- Refutation
- Q(b);XP(J)
- Try
- Actual
- P(C);
- Threat
- QAR(B)
- Vars
- Q(b);CHECK,OGATE,XR(D)::QAB(B),XQ(b)
- Q(b);N_GUARD,N_PINR(D),XP(C)::B(H)
- Q(b);N_GUARD::P=Q
- Q(b);N_GUARD,N_PINR(D)::B(H)
- Q(b);N_GUARD::B(H),XQ(b)
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).