MESON Chess Problem Database
Problem Display
PID: 214972 (1n2B3/2N2RPn/2pk2p1/2p3p1/6K1/2Q1p3/8/8 w - - 0 1)
Kovacs, Florian Janos
Funkschach, 1926
#2
6 + 8
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sf6+
- 2.Qxf6#
- 1...Sf8
- 2.gxf8Q#
- 2.gxf8B#
- 1...Sa6
- 2.Rd7#
- 1...Sd7
- 2.Rxd7#
- 1...e2
- 2.Qg3#
- 1...c4
- 2.Qd4#
- 1...Sf6+
- Tries
- 1.Kh3?
- 1...Sd7
- 2.Rxd7#
- 1...c4
- 2.Qd4#
- 1...e2
- 2.Qg3#
- 1...Sf6
- 2.Qxf6#
- 1...Sf8
- 2.gxf8Q#
- 2.gxf8B#
- 1...Sa6
- 2.Rd7#
- 1...g4+!
- 1...Sd7
- 1.Re7?
- threat
- 2.Qe5#
- 1...Sf6+
- 2.Qxf6#
- 1...Sd7
- 2.Rxd7#
- 1...Kxe7!
- threat
- 1.Qa1?
- 1...Sf6+
- 2.Qxf6#
- 1...Sd7
- 2.Rxd7#
- 1...c4
- 2.Qd4#
- 1...Sf8
- 2.gxf8Q#
- 2.gxf8B#
- 1...Sa6
- 2.Rd7#
- 1...e2!
- 1...Sf6+
- 1.Qb2?
- threat
- 2.Qh2#
- 1...Sf6+
- 2.Qxf6#
- 1...Sd7
- 2.Rxd7#
- 1...c4
- 2.Qd4#
- 1...e2!
- threat
- 1.Qxe3?
- threat
- 2.Qg3#
- 2.Qe6#
- 2.Qe7#
- 1...Sd7
- 2.Rxd7#
- 1...Sf8
- 2.Qg3#
- 2.Qe7#
- 2.gxf8Q#
- 2.gxf8B#
- 1...c4
- 2.Qd4#
- 2.Qe7#
- 1...Sf6+!
- threat
- 1.g8S?
- 1...Sf6+
- 2.Qxf6#
- 1...Sd7
- 2.Rxd7#
- 1...c4
- 2.Qd4#
- 1...e2
- 2.Qg3#
- 1...Sa6
- 2.Rd7#
- 1...Sf8!
- 1...Sf6+
- 1.g8B?
- 1...Sf6+
- 2.Qxf6#
- 1...Sd7
- 2.Rxd7#
- 1...c4
- 2.Qd4#
- 1...e2
- 2.Qg3#
- 1...Sa6
- 2.Rd7#
- 1...Sf8!
- 1...Sf6+
- 1.g8R?
- 1...Sf6+
- 2.Qxf6#
- 1...Sd7
- 2.Rxd7#
- 1...c4
- 2.Qd4#
- 1...e2
- 2.Qg3#
- 1...Sa6
- 2.Rd7#
- 1...Sf8!
- 1...Sf6+
- 1.Kh3?
- Keys
- 1.g8Q!
- 1...Sf6+
- 2.Qxf6#
- 1...Sd7
- 2.Rxd7#
- 1...c4
- 2.Qd4#
- 1...e2
- 2.Qg3#
- 1...Sf8
- 2.Qxf8#
- 1...Sa6
- 2.Rd7#
- 1...Sf6+
- 1.g8Q!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(g);CHECK,N_GUARD::QAR2(A),XS(g)
- S(g);OGATE::PXS(g)=Q
- S(h);N_GUARD::R1(D)
- S(h);N_GUARD::R1(D),XS(h)
- P(a);OGATE::QAB(A)
- P(b);N_GUARD::QAR2(A)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- S(h);N_GUARD::R1(D),XS(h)
- P(b);N_GUARD::QAR2(A)
- P(a);OGATE::QAB(A)
- S(g);N_GUARD::QAR2(A),XS(g)
- S(g);OGATE::PXS(g)=Q
- S(h);N_GUARD::R1(D)
- Refutation
- P(c);CHECK
- Try
- R(D);
- Threat
- QAB1(A)
- Vars
- S(g);CHECK,N_GUARD::QAR2(A),XS(g)
- S(h);N_GUARD::R1(D),XS(h)
- Refutation
- K(e);S_FLIGHT,XR(D)
- Try
- Q(A);
- Vars
- S(g);CHECK,N_GUARD::QAR2(A),XS(g)
- S(h);N_GUARD::R1(D),XS(h)
- P(b);N_GUARD::QAR2(A)
- S(g);OGATE::PXS(g)=Q
- S(h);N_GUARD::R1(D)
- Refutation
- P(a);
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(g);CHECK,N_GUARD::QAR2(A),XS(g)
- S(h);N_GUARD::R1(D),XS(h)
- P(b);N_GUARD::QAR2(A)
- Refutation
- P(a);
- Try
- Q(A);XP(a)
- Threat
- DUALS(3)
- Vars
- S(h);N_GUARD::R1(D),XS(h)
- Refutation
- S(g);CHECK
- Try
- P(E);
- Vars
- S(g);CHECK,N_GUARD::QAR2(A),XS(g)
- S(h);N_GUARD::R1(D),XS(h)
- P(b);N_GUARD::QAR2(A)
- P(a);OGATE::QAB(A)
- S(h);N_GUARD::R1(D)
- Refutation
- S(g);
- Try
- P(E);
- Vars
- S(g);CHECK,N_GUARD::QAR2(A),XS(g)
- S(h);N_GUARD::R1(D),XS(h)
- P(b);N_GUARD::QAR2(A)
- P(a);OGATE::QAB(A)
- S(h);N_GUARD::R1(D)
- Refutation
- S(g);
- Try
- P(E);
- Vars
- S(g);CHECK,N_GUARD::QAR2(A),XS(g)
- S(h);N_GUARD::R1(D),XS(h)
- P(b);N_GUARD::QAR2(A)
- P(a);OGATE::QAB(A)
- S(h);N_GUARD::R1(D)
- Refutation
- S(g);
- Try
- Actual
- P(E);
- Vars
- S(g);CHECK,N_GUARD::QAR2(A),XS(g)
- S(h);N_GUARD::R1(D),XS(h)
- P(b);N_GUARD::QAR2(A)
- P(a);OGATE::QAB(A)
- S(g);N_GUARD::QAB(E),XS(g)
- S(h);N_GUARD::R1(D)
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).