MESON Chess Problem Database
Problem Display
PID: 51698 (5R2/4P1p1/2NNBq1p/1KB5/1p2Pk1r/3P1p1P/3b4/6Q1 w - - 0 1)
Rice, John Michael
The Problemist, 2004
(First published on Mon Mar 1 2004)
#2
11 + 8
| 1101 | BCSC Final | 2003-2004 |
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Rxf5#
- 1...Qf7
- 2.Rxf7#
- 1...Qxf8
- 2.exf8Q#
- 2.exf8R#
- 1...Rxh3
- 2.Qg4#
- 1...Rg4
- 2.Qxg4#
- 1...Rh5
- 2.Qg4#
- 1...Be1
- 2.Be3#
- 1...Bc3
- 2.Be3#
- 1...Be3
- 2.Bxe3#
- 1...g5
- 2.Rxf6#
- 2.Qh2#
- 1...g6
- 2.Rxf6#
- 1...Qf5
- Tries
- 1.Sc4?
- threat
- 2.Bd6#
- 1...Rg4
- 2.Qxg4#
- 1...Qf5
- 2.Rxf5#
- 1...Rh5
- 2.Qg4#
- 1...Bc3
- 2.Be3#
- 1...f2!
- threat
- 1.Sf5?
- threat
- 2.Qg3#
- 1...Qxf5
- 2.Rxf5#
- 1...Rg4
- 2.Qxg4#
- 1...Qg5
- 2.Bd6#
- 1...Qg6
- 2.Bd6#
- 1...Be1
- 2.Be3#
- 2.Qe3#
- 1...Rxh3!
- threat
- 1.Sb7?
- threat
- 2.Bd6#
- 1...Rg4
- 2.Qxg4#
- 1...Qf5
- 2.Rxf5#
- 1...Rh5
- 2.Qg4#
- 1...Bc3
- 2.Be3#
- 1...f2!
- threat
- 1.Sc8?
- threat
- 2.Bd6#
- 1...Rg4
- 2.Qxg4#
- 1...Qf5
- 2.Rxf5#
- 1...Rh5
- 2.Qg4#
- 1...Bc3
- 2.Be3#
- 1...f2!
- threat
- 1.Se8?
- threat
- 2.Bd6#
- 1...Rg4
- 2.Qxg4#
- 1...Qf5
- 2.Rxf5#
- 1...Rh5
- 2.Qg4#
- 1...Bc3
- 2.Be3#
- 1...f2!
- threat
- 1.Bf2?
- threat
- 2.Qg3#
- 1...Qf5+
- 2.Rxf5#
- 1...Rxh3
- 2.Qg4#
- 1...Rg4
- 2.Qxg4#
- 1...Rh5+!
- threat
- 1.Qxg7?
- threat
- 2.Rxf6#
- 1...Qxf8
- 2.Qe5#
- 2.exf8Q#
- 2.exf8R#
- 1...Rg4
- 2.Qxg4#
- 1...Qf5
- 2.Rxf5#
- 1...Qf7
- 2.Rxf7#
- 2.Qe5#
- 1...Rh5
- 2.Qg4#
- 1...Bc3!
- threat
- 1.Sc4?
- Keys
- 1.Sf7!
- threat
- 2.Qh2#
- 1...Qxf7
- 2.Bd6#
- 2.Rxf7#
- 1...Rxh3
- 2.Qg4#
- 1...f2
- 2.Qxf2#
- 1...Qd4
- 2.Sfe5#
- 1...Qg5
- 2.Sxg5#
- 1...Qg6
- 2.Bd6#
- 1...Rg4
- 2.Qxg4#
- 1...Be1
- 2.Be3#
- threat
- 1.Sf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- Q(f);OGATE,P_PINB(F)::R1(K),XQ(f)
- Q(f);OGATEB::R(K),XQ(f)
- Q(f);N_SPINQ(f),OGATE,XR(K)::PXQ(f)=Q
- R(e);N_GUARD,XP(C)::QAR1(A)
- R(e);N_GUARD::QAR1(A),XR(e)
- R(e);N_GUARD,P_PINB(F)::QAR1(A)
- B(a);N_GUARD::B(F)
- B(a);N_GUARD::B(F),XB(a)
- P(h);N_GUARD::R(K),XQ(f)
- Tries
- Try
- S(H);
- Threat
- B(F)
- Vars
- R(e);N_GUARD::QAR1(A),XR(e)
- Q(f);OGATE,P_PINB(F)::R1(K),XQ(f)
- R(e);N_GUARD,P_PINB(F)::QAR1(A)
- B(a);N_GUARD::B(F)
- Refutation
- P(b);
- Try
- S(H);N_PINQ(f)
- Threat
- QAB1(A)
- Vars
- Q(f);OGATE,P_PINB(F),P_SPINQ(f),XS(H)::R1(K),XQ(f)
- R(e);N_GUARD::QAR1(A),XR(e)
- Q(f);N_GUARD::B(F)
- Refutation
- R(e);XP(C)
- Try
- S(H);
- Threat
- B(F)
- Vars
- R(e);N_GUARD::QAR1(A),XR(e)
- Q(f);OGATE,P_PINB(F)::R1(K),XQ(f)
- R(e);N_GUARD,P_PINB(F)::QAR1(A)
- B(a);N_GUARD::B(F)
- Refutation
- P(b);
- Try
- S(H);
- Threat
- B(F)
- Vars
- R(e);N_GUARD::QAR1(A),XR(e)
- Q(f);OGATE,P_PINB(F)::R1(K),XQ(f)
- R(e);N_GUARD,P_PINB(F)::QAR1(A)
- B(a);N_GUARD::B(F)
- Refutation
- P(b);
- Try
- S(H);
- Threat
- B(F)
- Vars
- R(e);N_GUARD::QAR1(A),XR(e)
- Q(f);OGATE,P_PINB(F)::R1(K),XQ(f)
- R(e);N_GUARD,P_PINB(F)::QAR1(A)
- B(a);N_GUARD::B(F)
- Refutation
- P(b);
- Try
- B(F);
- Threat
- QAB1(A)
- Vars
- Q(f);CHECK,OGATE::R1(K),XQ(f)
- R(e);N_GUARD,XP(C)::QAR1(A)
- R(e);N_GUARD::QAR1(A),XR(e)
- Refutation
- R(e);CHECK
- Try
- Q(A);XP(h)
- Threat
- R(K),XQ(f)
- Vars
- R(e);N_GUARD::QAR1(A),XR(e)
- Q(f);OGATE,P_PINB(F)::R1(K),XQ(f)
- R(e);N_GUARD,P_PINB(F)::QAR1(A)
- Refutation
- B(a);
- Try
- Actual
- S(H);N_PINQ(f)
- Threat
- QAB(A)
- Vars
- R(e);N_GUARD,XP(C)::QAR1(A)
- P(b);OGATEB::QAR2(A),XP(b)
- Q(f);::R(K)+S(H)
- Q(f);P_PINB(F)::R(K)+S(H),XQ(f)
- Q(f);N_GUARD::B(F)
- R(e);N_GUARD::QAR1(A),XR(e)
- B(a);N_GUARD::B(F)
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).