MESON Chess Problem Database
Problem Display
PID: 265583 (3Q4/5P2/8/2p5/p7/k7/P4n2/K7 w - - 0 1)
Kovacevic, Marjan
Die Schwalbe, 1972
#2
4 + 4
SOLUTION
- SOUND
- Sets
- 1...c4
- 2.Qe7#
- 2.Qd6#
- 2.Qf8#
- 2.f8Q#
- 2.f8B#
- 1...c4
- Tries
- 1.Qa5?
- threat
- 2.Qc3#
- 2.Qxc5#
- 1...Sd1
- 2.Qxc5#
- 1...Sd3
- 2.Qc3#
- 1...c4
- 2.Qc3#
- 2.Qc5#
- 2.f8Q#
- 2.f8B#
- 1...Se4!
- threat
- 1.Qb6?
- threat
- 2.Qxc5#
- 2.Qb2#
- 1...Sd1
- 2.Qxc5#
- 1...Se4
- 2.Qb2#
- 1...c4
- 2.Qc5#
- 2.Qb2#
- 2.Qd6#
- 2.f8Q#
- 2.f8B#
- 1...Sd3!
- threat
- 1.Qd2?
- threat
- 2.Qc3#
- 2.Qb2#
- 1...Sd3
- 2.Qc3#
- 1...Se4
- 2.Qb2#
- 1...Sd1!
- threat
- 1.Qa5?
- Keys
- 1.Qd4!
- threat
- 2.Qb2#
- 2.Qc3#
- 2.Qxc5#
- 1...cxd4
- 2.f8Q#
- 2.f8B#
- 1...c4
- 2.Qb2#
- 2.Qc3#
- 2.Qc5#
- 2.Qd6#
- 2.f8Q#
- 2.f8B#
- 1...Sd3
- 2.Qc3#
- 1...Sd1
- 2.Qxc5#
- 1...Se4
- 2.Qb2#
- threat
- 1.Qd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(D);P_PINP(c)
- Threat
- DUALS(2)
- Vars
- S(a);::QAB(D),XP(d)
- S(a);::QAR2(D)
- Refutation
- S(a);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- S(a);::QAB(D),XP(d)
- S(a);::QAB1(D)
- Refutation
- S(a);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- S(a);::QAR2(D)
- S(a);::QAB1(D)
- Refutation
- S(a);
- Try
- Actual
- Q(D);
- Threat
- DUALS(3)
- Vars
- P(d);XQ(D)::P=Q
- S(a);::QAR2(D)
- S(a);::QAB(D),XP(d)
- S(a);::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).