MESON Chess Problem Database
Problem Display
PID: 231440 (5R2/4p3/2K1kP2/7Q/8/2n5/8/8 w - - 0 1)
Schiffert, Gyorgy
Magyar Sakkvilag, 1927
#2
4 + 3
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Qd5#
- 1...Sd1
- 2.Qd5#
- 1...Sa2
- 2.Qd5#
- 1...Se2
- 2.Qd5#
- 1...Sa4
- 2.Qd5#
- 1...Se4
- 2.Qd5#
- 1...Sb5
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...exf6
- 2.Re8#
- 1...Sb1
- Tries
- 1.Rf7?
- 1...Sb1
- 2.Qd5#
- 1...Sd1
- 2.Qd5#
- 1...Sa2
- 2.Qd5#
- 1...Se2
- 2.Qd5#
- 1...Sa4
- 2.Qd5#
- 1...Se4
- 2.Qd5#
- 1...Sb5
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...exf6!
- 1...Sb1
- 1.Qf3?
- 1...exf6
- 2.Qxf6#
- 1...Sb1
- 2.Qe4#
- 2.Qd5#
- 1...Sd1
- 2.Qe4#
- 2.Qd5#
- 1...Sa2
- 2.Qe4#
- 2.Qd5#
- 1...Se2
- 2.Qe4#
- 2.Qd5#
- 1...Sa4
- 2.Qe4#
- 2.Qd5#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 2.Qd5#
- 1...Sd5
- 2.Qe4#
- 2.Qxd5#
- 1...Ke5!
- 1...exf6
- 1.Qg6?
- 1...exf6
- 2.Re8#
- 2.Qxf6#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...Ke5!
- 1...exf6
- 1.Qc5?
- 1...Sd5
- 2.Qxd5#
- 1...Sb1
- 2.Qd5#
- 1...Sd1
- 2.Qd5#
- 1...Sa2
- 2.Qd5#
- 1...Se2
- 2.Qd5#
- 1...Sa4
- 2.Qd5#
- 1...Se4
- 2.Qd5#
- 1...Sb5
- 2.Qd5#
- 1...exf6!
- 1...Sd5
- 1.Qh7?
- 1...exf6
- 2.Re8#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...Ke5!
- 1...exf6
- 1.fxe7?
- threat
- 2.e8Q#
- 2.e8R#
- 1...Kxe7
- 2.Qf7#
- 2.Qe8#
- 1...Sb1
- 2.Qe2#
- 2.e8Q#
- 2.e8R#
- 1...Sd1
- 2.e8Q#
- 2.e8R#
- 1...Sa2
- 2.Qe2#
- 2.e8Q#
- 2.e8R#
- 1...Se2
- 2.Qxe2#
- 2.e8Q#
- 2.e8R#
- 1...Sa4
- 2.Qe2#
- 2.e8Q#
- 2.e8R#
- 1...Se4
- 2.e8Q#
- 2.e8R#
- 1...Sb5
- 2.Qe2#
- 2.e8Q#
- 2.e8R#
- 1...Sd5!
- threat
- 1.Rf7?
- Keys
- 1.Qg5!
- 1...exf6
- 2.Qxf6#
- 1...Sb1
- 2.Qd5#
- 1...Sd1
- 2.Qd5#
- 1...Sa2
- 2.Qd5#
- 1...Se2
- 2.Qd5#
- 1...Sa4
- 2.Qd5#
- 1...Se4
- 2.Qd5#
- 1...Sb5
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...exf6
- 1.Qg5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- P(c);OGATEB,SBLOCK,XP(C)::R(D)
- Tries
- Try
- R(D);
- Vars
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- P(c);XP(C)
- Try
- Q(A);
- Vars
- P(c);OGATE,XP(C)::QAR1(A),XP(c)
- S(a);N_GUARD::QAR2(A),XS(a)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(A);
- Vars
- S(a);N_GUARD::QAR2(A)
- S(a);N_GUARD::QAR2(A),XS(a)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(A);
- Vars
- S(a);N_GUARD::QAB1(A),XS(a)
- S(a);N_GUARD::QAB1(A)
- Refutation
- P(c);XP(C)
- Try
- Q(A);
- Vars
- P(c);OGATEB,SBLOCK,XP(C)::R(D)
- S(a);N_GUARD::QAR2(A)
- S(a);N_GUARD::QAR2(A),XS(a)
- Refutation
- K(b);P-FLIGHT
- Try
- P(C);XP(c)
- Threat
- P=Q
- Vars
- S(a);::P=Q
- Refutation
- S(a);
- Try
- Actual
- Q(A);
- Vars
- P(c);OGATE,XP(C)::QAR1(A),XP(c)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
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).