MESON Chess Problem Database
Problem Display
PID: 205573 (k6K/8/nPP5/8/5Q2/8/8/8 w - - 0 1)
Gunst, Julius Robert
Karjala, 1925
#2
4 + 2
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sb4
- 2.Qf8#
- 1...Sc5
- 2.Qf8#
- 1...Sb4
- Tries
- 1.Qd2?
- 1...Kb8
- 2.Qd8#
- 1...Sb4
- 2.Qd8#
- 1...Sc5
- 2.Qd8#
- 1...Sc7
- 2.Qd8#
- 1...Sb8!
- 1...Kb8
- 1.Qe3?
- 1...Kb8
- 2.Qe8#
- 1...Sb8
- 2.b7#
- 1...Sb4
- 2.Qe8#
- 1...Sc5
- 2.Qe8#
- 1...Sc7!
- 1...Kb8
- 1.Qg5?
- 1...Kb8
- 2.Qd8#
- 2.Qg8#
- 1...Sb4
- 2.Qd8#
- 2.Qg8#
- 1...Sc5
- 2.Qd8#
- 2.Qg8#
- 1...Sc7
- 2.Qd8#
- 1...Sb8!
- 1...Kb8
- 1.Qd6?
- 1...Sc7
- 2.Qd8#
- 1...Sb4
- 2.Qf8#
- 2.Qd8#
- 1...Sc5
- 2.Qf8#
- 2.Qd8#
- 1...Sb8!
- 1...Sc7
- 1.Qc7?
- threat
- 2.Qa7#
- 2.Qb7#
- 1...Sc5
- 2.Qd8#
- 2.Qa7#
- 2.Qc8#
- 1...Sxc7!
- threat
- 1.Qf2?
- 1...Kb8
- 2.Qf8#
- 1...Sb8
- 2.b7#
- 1...Sb4
- 2.Qf8#
- 1...Sc5
- 2.Qf8#
- 1...Sc7!
- 1...Kb8
- 1.Qg4?
- 1...Kb8
- 2.Qg8#
- 1...Sb4
- 2.Qc8#
- 2.Qg8#
- 1...Sc5
- 2.Qc8#
- 2.Qg8#
- 1...Sc7
- 2.Qc8#
- 1...Sb8!
- 1...Kb8
- 1.Qh4?
- 1...Kb8
- 2.Qd8#
- 1...Sb4
- 2.Qd8#
- 1...Sc5
- 2.Qd8#
- 1...Sc7
- 2.Qd8#
- 1...Sb8!
- 1...Kb8
- 1.Qf5?
- 1...Kb8
- 2.Qf8#
- 1...Sb4
- 2.Qc8#
- 2.Qf8#
- 1...Sc5
- 2.Qc8#
- 2.Qf8#
- 1...Sc7
- 2.Qc8#
- 1...Sb8!
- 1...Kb8
- 1.Qf6?
- 1...Kb8
- 2.Qd8#
- 2.Qf8#
- 1...Sb4
- 2.Qd8#
- 2.Qf8#
- 1...Sc5
- 2.Qd8#
- 2.Qf8#
- 1...Sc7
- 2.Qd8#
- 1...Sb8!
- 1...Kb8
- 1.Qf7?
- threat
- 2.Qa7#
- 2.Qb7#
- 1...Kb8
- 2.Qe8#
- 2.Qg8#
- 2.Qb7#
- 2.Qf8#
- 1...Sc5
- 2.Qe8#
- 2.Qg8#
- 2.Qa7#
- 2.Qf8#
- 1...Sc7!
- threat
- 1.Qd2?
- Keys
- 1.Qd4!
- 1...Kb8
- 2.Qd8#
- 1...Sb8
- 2.b7#
- 1...Sb4
- 2.Qd8#
- 1...Sc5
- 2.Qd8#
- 1...Sc7
- 2.Qd8#
- 1...Kb8
- 1.Qd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAR(A)
- Tries
- Try
- Q(A);
- Vars
- K(b);P-FLIGHT::QAR2(A)
- S(a);N_GUARD::QAR(A)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- K(b);P-FLIGHT::QAR(A)
- S(a);SBLOCK::P(B)
- S(a);N_GUARD::QAR(A)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- S(a);N_GUARD::QAR(A)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- S(a);N_GUARD::QAR(A)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- DUALS(2)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);
- Vars
- K(b);P-FLIGHT::QAR(A)
- S(a);SBLOCK::P(B)
- S(a);N_GUARD::QAR(A)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- K(b);P-FLIGHT::QAR(A)
- S(a);N_GUARD::QAR2(A)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- K(b);P-FLIGHT::QAR2(A)
- S(a);N_GUARD::QAR(A)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- K(b);P-FLIGHT::QAR(A)
- S(a);N_GUARD::QAR2(A)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- S(a);N_GUARD::QAR(A)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- DUALS(2)
- Refutation
- S(a);
- Try
- Actual
- Q(A);
- Vars
- K(b);P-FLIGHT::QAR2(A)
- S(a);SBLOCK::P(B)
- S(a);N_GUARD::QAR(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).