MESON Chess Problem Database
Problem Display
PID: 150247 (5rb1/1PP1p3/3NRpP1/1N1k2P1/1p3R2/1p2Q3/8/5K2 w - - 0 1)
Agapov, Igor Alexeyevich
SuperProblem, 2012
#2
10 + 7
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Ra8
- 2.bxa8Q#
- 2.bxa8B#
- 1...exd6
- 2.Rxd6#
- 1...Ra8
- Tries
- 1.Sa7?
- threat
- 2.Rf5#
- 1...Bxe6
- 2.Qd4#
- 1...fxg5
- 2.Qe5#
- 1...f5
- 2.Qe5#
- 1...exd6!
- threat
- 1.Sc8?
- threat
- 2.Sb6#
- 2.Sxe7#
- 1...Bxe6
- 2.Sxe7#
- 1...Rf7
- 2.Sb6#
- 1...Re8
- 2.Sb6#
- 1...Rxc8!
- threat
- 1.Rc4?
- threat
- 2.Rc5#
- 2.Qe4#
- 1...exd6
- 2.Qe4#
- 1...f5
- 2.Rc5#
- 2.Re5#
- 2.Qe5#
- 1...fxg5+!
- threat
- 1.Qc5+?
- 1...Kxe6
- 2.Qf5#
- 1...Kxc5!
- 1...Kxe6
- 1.Qd3+?
- 1...Kc5
- 2.Se4#
- 1...Kxe6
- 2.Qf5#
- 1...Kc6!
- 1...Kc5
- 1.b8S?
- threat
- 2.Rf5#
- 1...Bxe6
- 2.Qd4#
- 1...fxg5
- 2.Re5#
- 2.Qe5#
- 1...exd6
- 2.Rxd6#
- 1...f5
- 2.Re5#
- 2.Qe5#
- 1...Rxb8!
- threat
- 1.c8Q?
- threat
- 2.Rd4#
- 2.Rf5#
- 2.Qd2#
- 2.Qd4#
- 2.Qec5#
- 2.Qxb3#
- 2.Qd3#
- 2.Qf3#
- 2.Qe4#
- 2.Qc4#
- 2.Qcc5#
- 1...Bxe6
- 2.Rd4#
- 2.Qd4#
- 2.Qec5#
- 2.Qe4#
- 2.Qexe6#
- 2.Qc4#
- 2.Qcc5#
- 1...fxg5
- 2.Re5#
- 2.Qd2#
- 2.Qd4#
- 2.Qec5#
- 2.Qxb3#
- 2.Qd3#
- 2.Qf3#
- 2.Qe4#
- 2.Qe5#
- 2.Qc4#
- 2.Qcc5#
- 1...exd6
- 2.Rd4#
- 2.Rf5#
- 2.Rxd6#
- 2.Qd2#
- 2.Qd4#
- 2.Qxb3#
- 2.Qd3#
- 2.Qf3#
- 2.Qe4#
- 2.Qc4#
- 1...b2
- 2.Rd4#
- 2.Rf5#
- 2.Qd2#
- 2.Qd4#
- 2.Qec5#
- 2.Qb3#
- 2.Qd3#
- 2.Qf3#
- 2.Qe4#
- 2.Qc4#
- 2.Qcc5#
- 1...f5
- 2.Rd4#
- 2.Re5#
- 2.Qd2#
- 2.Qd4#
- 2.Qec5#
- 2.Qxb3#
- 2.Qd3#
- 2.Qf3#
- 2.Qe5#
- 2.Qc4#
- 2.Qcc5#
- 1...Rxc8!
- threat
- 1.c8R?
- threat
- 2.Rd4#
- 2.Rf5#
- 2.Rc5#
- 2.Qxb3#
- 2.Qe4#
- 1...Bxe6
- 2.Rd4#
- 2.Rc5#
- 2.Qd4#
- 2.Qc5#
- 2.Qe4#
- 1...fxg5
- 2.Re5#
- 2.Rc5#
- 2.Qxb3#
- 2.Qe4#
- 2.Qe5#
- 1...exd6
- 2.Rd4#
- 2.Rf5#
- 2.Rxd6#
- 2.Qxb3#
- 2.Qe4#
- 1...b2
- 2.Rd4#
- 2.Rf5#
- 2.Rc5#
- 2.Qb3#
- 2.Qe4#
- 1...f5
- 2.Rd4#
- 2.Re5#
- 2.Rc5#
- 2.Qxb3#
- 2.Qe5#
- 1...Rxc8!
- threat
- 1.Sa7?
- Keys
- 1.Se4!
- threat
- 2.Qxb3#
- 1...Kc4
- 2.Sec3#
- 1...Kxe6
- 2.Sxf6#
- 1...Bxe6
- 2.Qc5#
- 1...b2
- 2.Qb3#
- threat
- 1.Se4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(f);OGATE::PXR(f)=Q
- P(e);OGATE,XS(F)::R1(G),XP(e)
- Tries
- Try
- S(D);
- Threat
- R(C)
- Vars
- B(g);SBLOCK,XR(G)::QAR1(B)
- P(d);N_GUARD,P_PINR(C),XP(E)::QAR1(B)
- P(d);N_GUARD::QAR1(B)
- Refutation
- P(e);XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(g);XR(G)::S(F),XP(e)
- R(f);::S(F)
- Refutation
- R(f);XS(F)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- P(e);XS(F)::QAB1(B)
- Refutation
- P(d);CHECK,XP(E)
- Try
- Q(B);CHECK
- Vars
- K(c);OGATE,S_FLIGHT,XR(G)::QAB1(B)
- Refutation
- K(c);P-FLIGHT,XQ(B)
- Try
- Q(B);CHECK
- Vars
- K(c);P-FLIGHT::S(F)
- K(c);S_FLIGHT,XR(G)::QAB1(B)
- Refutation
- K(c);S_FLIGHT
- Try
- P(I);
- Threat
- R(C)
- Vars
- B(g);SBLOCK,XR(G)::QAR1(B)
- P(e);OGATE,XS(F)::R1(G),XP(e)
- Refutation
- R(f);XS(I)
- Try
- P(J);
- Threat
- DUALS(11)
- Refutation
- R(f);XQ(J)
- Try
- P(J);
- Threat
- DUALS(5)
- Refutation
- R(f);XR(J)
- Try
- Actual
- S(F);
- Threat
- QAB(B),XP(a)
- Vars
- K(c);S_FLIGHT::R(C)+S(F)
- K(c);S_FLIGHT,XR(G)::QAR(B)+S(F),XP(d)
- B(g);SBLOCK,XR(G)::QAR1(B)
- P(a);::QAB(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).