MESON Chess Problem Database
Problem Display
PID: 178144 (6nQ/6N1/3R4/6k1/8/5Kn1/8/8 w - - 0 1)
Riczu, Lajos
Schach-Echo, 1968
#2
4 + 3
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sf1
- 2.Qh5#
- 1...Sh1
- 2.Qh5#
- 1...Se2
- 2.Qh5#
- 1...Se4
- 2.Qh5#
- 1...Sf5
- 2.Qh5#
- 1...Sh5
- 2.Qxh5#
- 1...Sh6
- 2.Qxh6#
- 2.Qd8#
- 1...Se7
- 2.Qh6#
- 1...Sf1
- Tries
- 1.Kxg3?
- threat
- 2.Qh4#
- 2.Qh5#
- 1...Sh6
- 2.Qxh6#
- 2.Qd8#
- 1...Sf6!
- threat
- 1.Ra6?
- 1...Sh5
- 2.Qxh5#
- 1...Sh6
- 2.Qxh6#
- 2.Qd8#
- 1...Sf1
- 2.Qh5#
- 1...Sh1
- 2.Qh5#
- 1...Se2
- 2.Qh5#
- 1...Se4
- 2.Qh5#
- 1...Sf5
- 2.Qh5#
- 1...Se7
- 2.Qh6#
- 1...Sf6!
- 1...Sh5
- 1.Rb6?
- 1...Sh5
- 2.Qxh5#
- 1...Sh6
- 2.Qxh6#
- 2.Qd8#
- 1...Sf1
- 2.Qh5#
- 1...Sh1
- 2.Qh5#
- 1...Se2
- 2.Qh5#
- 1...Se4
- 2.Qh5#
- 1...Sf5
- 2.Qh5#
- 1...Se7
- 2.Qh6#
- 1...Sf6!
- 1...Sh5
- 1.Rc6?
- 1...Sh5
- 2.Qxh5#
- 1...Sh6
- 2.Qxh6#
- 2.Qd8#
- 1...Sf1
- 2.Qh5#
- 1...Sh1
- 2.Qh5#
- 1...Se2
- 2.Qh5#
- 1...Se4
- 2.Qh5#
- 1...Sf5
- 2.Qh5#
- 1...Se7
- 2.Qh6#
- 1...Sf6!
- 1...Sh5
- 1.Re6?
- 1...Sh5
- 2.Qxh5#
- 1...Sh6
- 2.Qxh6#
- 2.Qd8#
- 1...Sf1
- 2.Qh5#
- 1...Sh1
- 2.Qh5#
- 1...Se2
- 2.Qh5#
- 1...Se4
- 2.Qh5#
- 1...Sf5
- 2.Qh5#
- 1...Se7
- 2.Qh6#
- 1...Sf6!
- 1...Sh5
- 1.Qh2?
- threat
- 2.Qxg3#
- 1...Sf1
- 2.Qf4#
- 2.Qh5#
- 1...Sh1
- 2.Qf4#
- 2.Qh5#
- 1...Se2
- 2.Qh5#
- 1...Se4
- 2.Qf4#
- 2.Qh5#
- 1...Sf5
- 2.Qf4#
- 2.Qh5#
- 1...Sh5
- 2.Qxh5#
- 1...Sh6
- 2.Qxh6#
- 1...Sf6!
- threat
- 1.Qh3?
- threat
- 2.Qg4#
- 2.Qxg3#
- 1...Sf1
- 2.Qg4#
- 2.Qh5#
- 1...Sh1
- 2.Qg4#
- 2.Qh5#
- 1...Se2
- 2.Qg4#
- 2.Qh5#
- 1...Se4
- 2.Qg4#
- 2.Qh5#
- 1...Sf5
- 2.Qg4#
- 2.Qh5#
- 1...Sh5
- 2.Qg4#
- 2.Qxh5#
- 1...Sh6
- 2.Qxh6#
- 1...Sf6!
- threat
- 1.Kxg3?
- Keys
- 1.Qh7!
- threat
- 2.Rg6#
- 1...Sh5
- 2.Qxh5#
- 1...Sh6
- 2.Qxh6#
- 1...Sf6
- 2.Se6#
- 1...Se7
- 2.Qh6#
- threat
- 1.Qh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- S(a);N_GUARD::QAR1(D)
- S(a);N_GUARD::QAR1(D),XS(a)
- S(c);N_GUARD::QAB1(D)
- Tries
- Try
- K(A);P-FLIGHT,XS(a)
- Threat
- DUALS(2)
- Refutation
- S(c);
- Try
- R(B);
- Vars
- S(a);N_GUARD::QAR1(D),XS(a)
- S(a);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAB1(D)
- Refutation
- S(c);
- Try
- R(B);
- Vars
- S(a);N_GUARD::QAR1(D),XS(a)
- S(a);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAB1(D)
- Refutation
- S(c);
- Try
- R(B);
- Vars
- S(a);N_GUARD::QAR1(D),XS(a)
- S(a);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAB1(D)
- Refutation
- S(c);
- Try
- R(B);
- Vars
- S(a);N_GUARD::QAR1(D),XS(a)
- S(a);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAB1(D)
- Refutation
- S(c);
- Try
- Q(D);
- Threat
- QAR2(D),XS(a)
- Vars
- S(a);N_GUARD::QAR1(D)
- S(a);N_GUARD::QAR1(D),XS(a)
- S(c);N_GUARD::QAB1(D),XS(c)
- Refutation
- S(c);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::QAB1(D),XS(c)
- Refutation
- S(c);
- Try
- Actual
- Q(D);
- Threat
- R1(B)
- Vars
- S(a);N_GUARD::QAR1(D),XS(a)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);SBLOCK::S(C)
- S(c);N_GUARD::QAB1(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).