MESON Chess Problem Database
Problem Display
PID: 50917 (1n1K1Q2/3B1PR1/2p1NkN1/r5p1/q3P3/b2RB3/8/8 w - - 0 1)
Rice, John Michael
2nd Prize, Stella Polaris, 1972
#2
10 + 7
| 5174 | Chess Problem Spectrum | 2003 |
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Qe7#
- 1...Ra6
- 2.Bxg5#
- 1...Ra7
- 2.Bxg5#
- 1...Ra8
- 2.Bxg5#
- 1...Bc1
- 2.Qe7#
- 1...Bb2
- 2.Qe7#
- 1...Bc5
- 2.Bxg5#
- 1...Be7+
- 2.Qxe7#
- 1...c5
- 2.Bxg5#
- 2.Qe7#
- 1...Rc5
- Tries
- 1.Bd4+?
- 1...Re5
- 2.Bxe5#
- 2.Rf3#
- 1...Qxd4!
- 1...Re5
- 1.Bc5?
- threat
- 2.Rf3#
- 2.Qe7#
- 1...Rxc5
- 2.Qe7#
- 1...Bxc5
- 2.Rf3#
- 1...Sxd7
- 2.Qe7#
- 1...Qd1
- 2.Qe7#
- 1...Qb3
- 2.Qe7#
- 1...Bc1
- 2.Be7#
- 2.Qe7#
- 1...g4
- 2.Qe7#
- 1...Qxe4!
- threat
- 1.Qc5?
- threat
- 2.Bxg5#
- 2.f8Q#
- 2.f8R#
- 1...Qxe4
- 2.Bxg5#
- 2.f8Q#
- 2.f8R#
- 1...Rxc5
- 2.f8Q#
- 2.f8R#
- 1...Bxc5
- 2.Bxg5#
- 1...Qd1
- 2.Bd4#
- 2.Bxg5#
- 2.f8Q#
- 2.f8R#
- 1...Qc2
- 2.Bd4#
- 2.Bxg5#
- 2.f8Q#
- 2.f8R#
- 1...Qb3
- 2.Bd4#
- 2.Bxg5#
- 2.f8Q#
- 2.f8R#
- 1...Qb5
- 2.Bd4#
- 2.Bxg5#
- 2.f8Q#
- 2.f8R#
- 1...Qb4
- 2.Bxg5#
- 2.f8Q#
- 2.f8R#
- 1...Qc4
- 2.Bxg5#
- 2.f8Q#
- 2.f8R#
- 1...Qd4
- 2.Bxd4#
- 2.Bxg5#
- 2.f8Q#
- 2.f8R#
- 1...Rb5
- 2.Bxg5#
- 2.f8Q#
- 2.f8R#
- 1...Ra6
- 2.Bxg5#
- 2.Qe5#
- 2.Qf5#
- 2.Qxg5#
- 2.f8Q#
- 2.f8R#
- 1...Ra7
- 2.Bxg5#
- 2.Qe5#
- 2.Qf5#
- 2.Qxg5#
- 2.f8Q#
- 2.f8R#
- 1...Ra8
- 2.Bxg5#
- 2.Qe5#
- 2.Qf5#
- 2.Qxg5#
- 2.f8Q#
- 2.f8R#
- 1...Bc1
- 2.Qe7#
- 2.f8Q#
- 2.f8R#
- 1...Bb2
- 2.Bxg5#
- 2.Qe7#
- 2.f8Q#
- 2.f8R#
- 1...Bb4
- 2.Bd4#
- 2.Bxg5#
- 2.f8Q#
- 2.f8R#
- 1...Sa6
- 2.Bxg5#
- 2.f8Q#
- 2.f8R#
- 1...g4
- 2.Bg5#
- 2.f8Q#
- 2.f8R#
- 1...Sxd7!
- threat
- 1.Bd4+?
- Keys
- 1.Sc5!
- threat
- 2.Rd6#
- 2.e5#
- 1...Qxe4
- 2.Sxe4#
- 1...Rxc5
- 2.Rd6#
- 1...Bxc5
- 2.e5#
- 1...Sxd7
- 2.Rd6#
- 1...Qd1
- 2.Bd4#
- 2.e5#
- 1...Qb3
- 2.Bd4#
- 2.e5#
- 1...Qc4
- 2.e5#
- 1...Qd4
- 2.Bxd4#
- 1...Bb2
- 2.Rd6#
- threat
- 1.Sc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- R(c);S_CUTB(a)::QAB1(J)
- R(c);N_GUARD::B(B),XP(d)
- B(a);N_GUARD::QAB1(J)
- B(a);S_CUTR(c)::B(B),XP(d)
- B(a);CHECK,N_GUARD::QAB1(J),XB(a)
- Tries
- Try
- B(B);CHECK
- Refutation
- Q(b);P_PINB(F),XB(B)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- R(c);XB(B)::QAB1(J)
- B(a);XB(B)::R(A)
- S(g);XB(F)::QAB1(J)
- Q(b);::QAB1(J)
- P(d);::QAB1(J)
- Refutation
- Q(b);XP(C)
- Try
- Q(J);
- Threat
- DUALS(3)
- Vars
- R(c);XQ(J)::P=Q
- B(a);XQ(J)::B(B),XP(d)
- Refutation
- S(g);XB(F)
- Try
- Actual
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(b);XP(C)::S(D),XQ(b)
- R(c);XS(D)::R(A)
- B(a);XS(D)::P(C)
- S(g);XB(F)::R(A)
- Q(b);::P(C)
- Q(b);N_GUARD,P_PINB(F)::B(B),XQ(b)
- B(a);::R(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).