MESON Chess Problem Database
Problem Display
PID: 1041 (6q1/7k/1Q6/5Pp1/3B2K1/8/8/8 w - - 0 1)
Kovalenko, Vitaly Semenovich
The Problemist Supplement, 1998
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Qg6#
- 1...Qb3
- 2.Qg6#
- 1...Qc4
- 2.Qg6#
- 1...Qd5
- 2.Qg6#
- 1...Qg6
- 2.Qxg6#
- 1...Qa8
- 2.Qg6#
- 1...Qb8
- 2.Qg6#
- 1...Qc8
- 2.Qg6#
- 1...Qd8
- 2.Qg6#
- 1...Qf8
- 2.Qg6#
- 1...Qh8
- 2.Qg6#
- 1...Qa2
- Tries
- 1.Qc7+?
- 1...Kh6
- 2.Qh2#
- 1...Qg7
- 2.Qxg7#
- 1...Qf7!
- 1...Kh6
- 1.Qb7+?
- 1...Kh6
- 2.Qh1#
- 1...Qg7
- 2.Qxg7#
- 1...Qf7!
- 1...Kh6
- 1.Qc7+?
- Keys
- 1.Qf6!
- 1...Qa2
- 2.Qg7#
- 2.Qh8#
- 2.Qg6#
- 1...Qb3
- 2.Qg7#
- 2.Qh8#
- 2.Qg6#
- 1...Qc4
- 2.Qg7#
- 2.Qh8#
- 2.Qg6#
- 1...Qd5
- 2.Qg7#
- 2.Qh8#
- 2.Qg6#
- 1...Qe6
- 2.Qg7#
- 2.Qh8#
- 1...Qf7
- 2.Qh8#
- 1...Qg6
- 2.Qh8#
- 2.Qxg6#
- 1...Qg7
- 2.Qxg7#
- 1...Qa8
- 2.Qg7#
- 2.Qg6#
- 1...Qb8
- 2.Qg7#
- 2.Qg6#
- 1...Qc8
- 2.Qg7#
- 2.Qg6#
- 1...Qd8
- 2.Qg7#
- 2.Qg6#
- 1...Qe8
- 2.Qg7#
- 1...Qf8
- 2.Qg6#
- 1...Qh8
- 2.Qxh8#
- 2.Qg6#
- 1...Qa2
- 1.Qf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- Q(c);N_GUARD::QAB1(D)
- Q(c);N_GUARD,P_PINB(A)::QAB1(D)
- Q(c);N_GUARD::QAB1(D),XQ(c)
- Q(c);N_GUARD,SBLOCK::QAB1(D)
- Q(c);N_GUARD,P_PINP(C)::QAB1(D)
- Tries
- Try
- Q(D);CHECK
- Vars
- K(b);P-FLIGHT::QAR(D)
- Q(c);N_GUARD,P_SPINQ(c)::QAR1(D),XQ(c)
- Refutation
- Q(c);P_SPINQ(c)
- Try
- Q(D);CHECK
- Vars
- K(b);P-FLIGHT::QAR(D)
- Q(c);N_GUARD,P_SPINQ(c)::QAR1(D),XQ(c)
- Refutation
- Q(c);P_SPINQ(c)
- Try
- Actual
- Q(D);
- Vars
- Q(c);N_GUARD::QAR1(D)
- Q(c);N_GUARD::QAR1(D),XQ(c)
- Q(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).