MESON Chess Problem Database
Problem Display
PID: 262932 (8/1pP3P1/1Kn1p1R1/1N1k4/2p1nP2/P4P2/2R3PQ/BBN5 w - - 0 1)
Lipton, Michael
Jaarboek, 1961
#2
14 + 6
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...c3
- 2.Ba2#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...c3
- Tries
- 1.Sa2?
- 1...Sd2
- 2.Sac3#
- 1...Sf2
- 2.Sac3#
- 1...Sc3
- 2.Saxc3#
- 1...Sg3
- 2.Sac3#
- 1...Sc5
- 2.Sac3#
- 1...Sg5
- 2.Sac3#
- 1...Sd6
- 2.Sac3#
- 1...Sf6
- 2.Sac3#
- 1...Sb4
- 2.Sxb4#
- 1...Sd4
- 2.Sb4#
- 1...Sa5
- 2.Sb4#
- 1...Se5
- 2.Sb4#
- 1...Sa7
- 2.Sb4#
- 1...Se7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Sd8
- 2.Sb4#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...c3!
- 1...Sd2
- 1.Rd2+?
- 1...Sd4
- 2.Bxe4#
- 2.Rxd4#
- 2.fxe4#
- 1...Sxd2!
- 1...Sd4
- 1.Rg5+?
- 1...Se5
- 2.Rxe5#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...Sxg5!
- 1...Se5
- 1.Rxe6?
- 1...c3
- 2.Ba2#
- 1...Sd2
- 2.Rd6#
- 1...Sf2
- 2.Rd6#
- 1...Sc3
- 2.Rd6#
- 1...Sg3
- 2.Rd6#
- 1...Sc5
- 2.Rd6#
- 1...Sg5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.Rd6#
- 1...Sb4
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sa5
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sa7
- 2.Re5#
- 1...Se7
- 2.Re5#
- 1...Sb8
- 2.Re5#
- 1...Sd8
- 2.Re5#
- 1...Kxe6!
- 1...c3
- 1.Qg1?
- 1...c3
- 2.Ba2#
- 1...Sd2
- 2.Qc5#
- 1...Sc3
- 2.Qc5#
- 1...Sg3
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sg5
- 2.Qc5#
- 1...Sd6
- 2.Sc3#
- 2.Qc5#
- 1...Sf6
- 2.Qc5#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Se5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...Sf2!
- 1...c3
- 1.Qh5+?
- 1...Se5
- 2.Qxe5#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...Sg5!
- 1...Se5
- 1.c8S?
- threat
- 2.Sc7#
- 1...c3
- 2.Ba2#
- 1...Sc3!
- threat
- 1.g8S?
- 1...c3
- 2.Ba2#
- 1...Sd2
- 2.Sf6#
- 1...Sf2
- 2.Sf6#
- 1...Sc3
- 2.Sf6#
- 1...Sg3
- 2.Sf6#
- 1...Sc5
- 2.Sf6#
- 1...Sg5
- 2.Sf6#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sb4
- 2.Se7#
- 1...Sd4
- 2.Se7#
- 1...Sa5
- 2.Se7#
- 1...Se5
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sb8
- 2.Se7#
- 1...Sd8
- 2.Se7#
- 1...e5!
- 1...c3
- 1.Sa2?
- Keys
- 1.Rxc4!
- 1...Kxc4
- 2.Ba2#
- 1...Sd2
- 2.Rc5#
- 1...Sf2
- 2.Rc5#
- 1...Sc3
- 2.Rc5#
- 1...Sg3
- 2.Rc5#
- 1...Sc5
- 2.Rxc5#
- 1...Sg5
- 2.Rc5#
- 1...Sd6
- 2.Rc5#
- 1...Sf6
- 2.Rc5#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Rd4#
- 1...Se5
- 2.Rd4#
- 1...Sa7
- 2.Rd4#
- 1...Se7
- 2.Rd4#
- 1...Sb8
- 2.Rd4#
- 1...Sd8
- 2.Rd4#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...Kxc4
- 1.Rxc4!
This is a version of 263214
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 17
- REMOVED MATES = 1
- Sets
- P(a);OGATEB::B(B)
- P(e);::P=Q
- Tries
- Try
- S(C);
- Vars
- S(b);N_GUARD::S(C)
- S(b);N_GUARD::S(C),XS(b)
- S(d);N_GUARD::S(C),XS(d)
- S(d);N_GUARD::S(C)
- P(e);::P=Q
- Refutation
- P(a);
- Try
- R(D);CHECK
- Refutation
- S(b);XR(D)
- Try
- R(L);CHECK
- Vars
- S(d);N_GUARD,P_SPINS(d)::R1(L),XS(d)
- P(e);P_SPINP(e),S_CUTS(b),S_CUTS(d)::P=Q
- Refutation
- S(b);XR(L)
- Try
- R(L);XP(e)
- Vars
- P(a);OGATEB::B(B)
- S(b);N_GUARD::R1(L)
- S(b);N_GUARD::R1(L),XS(b)
- S(d);N_GUARD::R1(L)
- S(d);N_GUARD::R1(L),XS(d)
- Refutation
- K(c);S_FLIGHT,XR(L)
- Try
- Q(F);
- Vars
- P(a);OGATEB::B(B)
- S(b);N_GUARD::QAR1(F)
- S(b);N_GUARD::QAR1(F),XS(b)
- S(d);N_GUARD::QAR1(F)
- S(d);N_GUARD::QAR1(F),XS(d)
- P(e);::P=Q
- Refutation
- S(b);
- Try
- Q(F);CHECK
- Vars
- S(d);N_GUARD,P_SPINS(d)::QAR1(F),XS(d)
- P(e);P_SPINP(e),S_CUTS(b),S_CUTS(d)::P=Q
- Refutation
- S(b);P_SPINS(b)
- Try
- P(M);
- Threat
- S(J)
- Vars
- P(a);OGATEB::B(B)
- Refutation
- S(b);
- Try
- P(N);
- Vars
- P(a);OGATEB::B(B)
- S(b);N_GUARD::S(N)
- S(b);N_GUARD::S(N),XS(b)
- S(d);N_GUARD::S(N)
- S(d);N_GUARD::S(N),XS(d)
- Refutation
- P(e);
- Try
- Actual
- R(D);XP(a)
- Vars
- K(c);OGATEB,S_FLIGHT,XR(D)::B(B)
- S(b);N_GUARD::R1(D)
- S(b);N_GUARD::R1(D),XS(b)
- S(d);N_GUARD::R1(D)
- S(d);N_GUARD::R1(D),XS(d)
- P(e);::P=Q
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).