MESON Chess Problem Database
Problem Display
PID: 249032 (8/3q1p2/5p2/4P1pB/1PP1k3/3p3p/3K3B/6Q1 w - - 0 1)
Latzel, Gerhard Paul
Die Schwalbe, 1929
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Kf5
- 2.Qg4#
- 1...Qa4
- 2.Qg4#
- 1...Qg4
- 2.Qxg4#
- 1...Qb5
- 2.Qg4#
- 1...Qf5
- 2.Qe3#
- 1...Qc6
- 2.Qg4#
- 1...Qe8
- 2.Qg4#
- 1...Qd4
- 2.Qg4#
- 1...Qd5
- 2.Qg4#
- 1...Qd6
- 2.Qg4#
- 1...Qa7
- 2.Qg4#
- 1...Qb7
- 2.Qg4#
- 1...Qc7
- 2.Qg4#
- 1...Qe7
- 2.Qg4#
- 1...Qd8
- 2.Qg4#
- 1...f5
- 2.Qe3#
- 1...Kf5
- Tries
- 1.Bg4?
- threat
- 2.Qe3#
- 1...Qxg4
- 2.Qxg4#
- 1...Qd4
- 2.Qh1#
- 1...Qa7!
- threat
- 1.Bg6+?
- 1...Kf3
- 2.Qg3#
- 1...Qf5
- 2.Qe3#
- 2.Qg4#
- 1...f5
- 2.Qe3#
- 2.Qg4#
- 1...fxg6!
- 1...Kf3
- 1.Qxg5?
- threat
- 2.Qf4#
- 1...Kd4
- 2.Qf4#
- 1...fxe5
- 2.Qxe5#
- 1...Qg4
- 2.Qxg4#
- 1...Qf5
- 2.Qe3#
- 1...fxg5!
- threat
- 1.Bg4?
- Keys
- 1.Qg3!
- 1...Kd4
- 2.Qxd3#
- 1...Kf5
- 2.Qg4#
- 1...fxe5
- 2.Qxe5#
- 1...Qa4
- 2.Qxd3#
- 2.Qg4#
- 1...Qg4
- 2.Qxd3#
- 2.Qxg4#
- 1...Qb5
- 2.Qxd3#
- 2.Qg4#
- 1...Qf5
- 2.Qxd3#
- 2.Qe3#
- 1...Qc6
- 2.Qxd3#
- 2.Qg4#
- 1...Qe6
- 2.Qxd3#
- 1...Qc8
- 2.Qxd3#
- 1...Qe8
- 2.Qxd3#
- 2.Qg4#
- 1...Qd4
- 2.Qf3#
- 2.Qg4#
- 1...Qd5
- 2.Qg4#
- 1...Qd6
- 2.Qg4#
- 1...Qa7
- 2.Qxd3#
- 2.Qg4#
- 1...Qb7
- 2.Qxd3#
- 2.Qg4#
- 1...Qc7
- 2.Qxd3#
- 2.Qg4#
- 1...Qe7
- 2.Qxd3#
- 2.Qg4#
- 1...Qd8
- 2.Qg4#
- 1...g4
- 2.Qf4#
- 1...f5
- 2.Qe3#
- 1...Kd4
- 1.Qg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 11
- Sets
- K(c);S_FLIGHT::QAB1(A)
- Q(f);N_GUARD::QAR2(A)
- Q(f);N_GUARD::QAR2(A),XQ(f)
- Q(f);SBLOCK::QAR1(A)
- Q(f);N_GUARD,SBLOCK::QAR2(A)
- P(e);SBLOCK::QAR1(A)
- Tries
- Try
- B(G);
- Threat
- QAR1(A)
- Vars
- Q(f);OGATE,XB(G)::QAR2(A),XQ(f)
- Q(f);SBLOCK::QAB(A)
- Refutation
- Q(f);
- Try
- B(G);CHECK
- Vars
- K(c);S_FLIGHT::QAR1(A)
- Refutation
- P(g);XB(G)
- Try
- Q(A);XP(d)
- Threat
- QAR1(A)
- Vars
- K(c);P-FLIGHT::QAR2(A)
- P(e);OGATE,XP(F)::QAR1(A),XP(e)
- Q(f);N_GUARD::QAR2(A),XQ(f)
- Q(f);SBLOCK::QAR1(A)
- Refutation
- P(e);XQ(A)
- Try
- Actual
- Q(A);
- Vars
- K(c);P-FLIGHT::QAR1(A),XP(a)
- K(c);S_FLIGHT::QAB1(A)
- P(e);OGATE,XP(F)::QAR1(A),XP(e)
- Q(f);N_GUARD::QAB1(A),XP(a)
- Q(f);N_GUARD::QAR2(A)
- P(d);N_GUARD::QAR1(A)
- P(e);SBLOCK::QAR1(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).