MESON Chess Problem Database
Problem Display
PID: 81412 (6K1/6n1/6kp/8/4PQ2/7P/8/8 w - - 0 1)
Kovalenko, Vitaly Semenovich
Sp. Prize, Shakhmatnaya kompozitsiya, 2003
#2
4 + 3
| 23 | Die Schwalbe | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Kh5
- 2.Qg4#
- 1...Sf5
- 2.Qxf5#
- 1...Sh5
- 2.Qf5#
- 1...Se6
- 2.Qf5#
- 1...Se8
- 2.Qf5#
- 1...Kh5
- Tries
- 1.Kh8?
- 1...Kh5
- 2.Qg4#
- 1...Sf5
- 2.Qxf5#
- 1...Sh5
- 2.Qf5#
- 1...Se6
- 2.Qf5#
- 1...Se8
- 2.Qf5#
- 1...h5!
- 1...Kh5
- 1.Qg3+?
- 1...Kh5
- 2.Qg4#
- 1...Kf6!
- 1...Kh5
- 1.h4?
- threat
- 2.Qf7#
- 1...Sf5
- 2.Qxf5#
- 1...h5
- 2.Qg5#
- 1...Kh5!
- threat
- 1.e5?
- threat
- 2.Qg4#
- 1...Kh5
- 2.Qg4#
- 1...h5
- 2.Qf6#
- 1...Se6!
- threat
- 1.Kh8?
- Keys
- 1.Qe5!
- 1...Sf5
- 2.Qxf5#
- 1...h5
- 2.Qxg7#
- 1...Sh5
- 2.Qf5#
- 1...Se6
- 2.Qf5#
- 1...Se8
- 2.Qf5#
- 1...Sf5
- 1.Qe5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(a);S_FLIGHT::QAB1(C)
- S(c);N_GUARD::QAB1(C),XS(c)
- S(c);N_GUARD::QAB1(C)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- K(a);S_FLIGHT::QAB1(C)
- S(c);N_GUARD::QAB1(C),XS(c)
- S(c);N_GUARD::QAB1(C)
- Refutation
- P(b);
- Try
- Q(C);CHECK
- Vars
- K(a);S_FLIGHT::QAB1(C)
- Refutation
- K(a);P-FLIGHT
- Try
- P(A);
- Threat
- QAB1(C)
- Vars
- S(c);N_GUARD::QAB1(C),XS(c)
- P(b);N_GUARD::QAR1(C)
- Refutation
- K(a);S_FLIGHT
- Try
- P(B);
- Threat
- QAR2(C)
- Vars
- K(a);S_FLIGHT::QAB1(C)
- P(b);SBLOCK::QAR1(C)
- Refutation
- S(c);
- Try
- Actual
- Q(C);
- Vars
- S(c);N_GUARD::QAB1(C),XS(c)
- P(b);SBLOCK::QAR1(C),XS(c)
- S(c);N_GUARD::QAB1(C)
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).