MESON Chess Problem Database
Problem Display
PID: 176586 (4R3/3pK3/1RPppp2/q5P1/N3kPQP/rB4pr/4PB2/5Nb1 w - - 0 1)
Fleck, Ferenc
Schach-Echo, 1975
#2
13 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qd2
- 2.Sxd2#
- 1...Qc3
- 2.Sxc3#
- 1...Qb4
- 2.Rxb4#
- 1...Qxb6
- 2.Sd2#
- 2.Sc3#
- 1...Qxa4
- 2.Sd2#
- 1...Qb5
- 2.Sd2#
- 2.Sc3#
- 1...Qc5
- 2.Sd2#
- 1...Qd5
- 2.Sc3#
- 1...Qe5
- 2.Sd2#
- 1...Qf5
- 2.Sd2#
- 2.Sc3#
- 2.Rb4#
- 2.Qf3#
- 1...Qxg5
- 2.Sd2#
- 2.Sc3#
- 2.Rb4#
- 1...Qa6
- 2.Sd2#
- 2.Sc3#
- 1...Qa7
- 2.Sd2#
- 2.Sc3#
- 1...Qa8
- 2.Sd2#
- 2.Sc3#
- 2.Rb4#
- 1...Rh1
- 2.Sxg3#
- 1...Rh2
- 2.Sxg3#
- 1...Rxh4
- 2.Sxg3#
- 1...e5
- 2.f5#
- 1...f5
- 2.Qf3#
- 1...Qd2
- Tries
- 1.Kxf6?
- threat
- 2.Qf3#
- 2.f5#
- 1...Qc3+
- 2.Sxc3#
- 1...Qe5+
- 2.fxe5#
- 1...Qf5+
- 2.Qxf5#
- 1...Qxg5+
- 2.fxg5#
- 1...Rxh4
- 2.Sxg3#
- 2.Qf3#
- 1...Bxf2
- 2.f5#
- 1...gxf2
- 2.f5#
- 1...Qd2
- 2.Sxd2#
- 2.Qf3#
- 2.Qf5#
- 1...g2
- 2.f5#
- 1...Rxb3!
- threat
- 1.Sc5+?
- 1...Qxc5
- 2.Sd2#
- 1...dxc5!
- 1...Qxc5
- 1.Rb5?
- threat
- 2.Qf3#
- 2.f5#
- 1...Qxb5
- 2.Sd2#
- 2.Sc3#
- 1...Rxb3
- 2.f5#
- 1...Rxh4
- 2.Sxg3#
- 2.Qf3#
- 1...Bxf2
- 2.f5#
- 1...gxf2
- 2.f5#
- 1...Qd2
- 2.Sxd2#
- 2.Qf3#
- 1...Qc3
- 2.Sxc3#
- 2.f5#
- 1...g2
- 2.f5#
- 1...d5
- 2.Sc5#
- 1...e5
- 2.Bd5#
- 2.fxe5#
- 2.f5#
- 1...f5
- 2.Qf3#
- 1...Qd8+!
- threat
- 1.Kxf6?
- Keys
- 1.Kxd6!
- threat
- 2.f5#
- 1...Qd2+
- 2.Sxd2#
- 1...Qb4+
- 2.Rxb4#
- 1...Qc5+
- 2.Sxc5#
- 1...Qd5+
- 2.Bxd5#
- 1...Qe5+
- 2.fxe5#
- 1...Qxg5
- 2.Sd2#
- 2.Sc3#
- 2.Rb4#
- 2.fxg5#
- 1...Rxh4
- 2.Sxg3#
- 1...Qf5
- 2.Sd2#
- 2.Sc3#
- 2.Rb4#
- 2.Qf3#
- 1...f5
- 2.Qf3#
- threat
- 1.Kxd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(f);N_GUARD::S(A),XQ(f)
- Q(f);N_GUARD::S(E),XQ(f)
- Q(f);N_GUARD::R(J),XQ(f)
- Q(f);N_GUARD,XS(E)::S(A)
- Q(f);N_GUARD::S(A)
- Q(f);N_GUARD::S(E)
- R(d);N_GUARD::S(A),XP(c)
- R(d);N_GUARD,XP(H)::S(A),XP(c)
- P(h);SBLOCK::QAR(G)+P(F)
- P(i);SBLOCK::QAB1(G)
- Tries
- Try
- K(L);P_PINP(h),S_FLIGHT,XP(i)
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,N_GUARD::S(E),XQ(f)
- Q(f);CHECK,N_SPINP(h),OGATE::QAR(G)+P(F),XQ(f)
- Q(f);CHECK,N_GUARD::QAB1(G),XQ(f)
- Q(f);CHECK,OGATE,XP(I)::QAR(G)+P(F),XQ(f)
- B(a);XB(C)::QAR(G)+P(F)
- P(c);XB(C)::QAR(G)+P(F)
- P(c);::QAR(G)+P(F)
- Refutation
- R(b);XB(D)
- Try
- S(E);CHECK
- Vars
- Q(f);XS(E)::S(A)
- Refutation
- P(g);XS(E)
- Try
- R(J);
- Threat
- DUALS(2)
- Vars
- R(b);XB(D)::QAR(G)+P(F)
- B(a);XB(C)::QAR(G)+P(F)
- P(c);XB(C)::QAR(G)+P(F)
- P(c);::QAR(G)+P(F)
- P(g);N_GUARD::S(E)
- P(i);::QAB1(G)
- Refutation
- Q(f);CHECK
- Try
- Actual
- K(L);P_PINP(h),S_FLIGHT,XP(g)
- Threat
- QAR(G)+P(F)
- Vars
- Q(f);CHECK,N_GUARD::S(A),XQ(f)
- Q(f);CHECK,N_GUARD::R(J),XQ(f)
- Q(f);CHECK,N_GUARD::S(E),XQ(f)
- Q(f);CHECK,N_GUARD::B(D),XQ(f)
- Q(f);CHECK,N_SPINP(h),OGATE::QAR(G)+P(F),XQ(f)
- R(d);N_GUARD,XP(H)::S(A),XP(c)
- P(i);SBLOCK::QAB1(G)
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).