MESON Chess Problem Database
Problem Display
PID: 258403 (4K3/8/8/3N1kp1/8/8/6B1/Q7 w - - 0 1)
Leibovici, Paul
Die Schwalbe, 1931
#2
4 + 2
SOLUTION
- SOUND
- Sets
- 1...Ke6
- 2.Qf6#
- 1...g4
- 2.Qf6#
- 1...Ke6
- Tries
- 1.Kf7?
- 1...g4
- 2.Qf6#
- 1...Kg4!
- 1...g4
- 1.Bf3?
- threat
- 2.Qf6#
- 1...Ke6
- 2.Qf6#
- 1...Kg6!
- threat
- 1.Qc3?
- 1...Kg4
- 2.Qh3#
- 1...Ke6
- 2.Qf6#
- 1...g4
- 2.Qf6#
- 1...Kg6!
- 1...Kg4
- 1.Qd4?
- threat
- 2.Qe4#
- 1...Ke6
- 2.Qf6#
- 1...g4
- 2.Qf6#
- 1...Kg6!
- threat
- 1.Qg7?
- 1...Ke6
- 2.Qf6#
- 1...g4
- 2.Qf6#
- 1...Kg4!
- 1...Ke6
- 1.Qa6?
- 1...Ke5
- 2.Qf6#
- 1...g4
- 2.Qf6#
- 1...Kg4!
- 1...Ke5
- 1.Kf7?
- Keys
- 1.Qh8!
- 1...Kg4
- 2.Qh3#
- 1...Ke6
- 2.Qf6#
- 1...Kg6
- 2.Se7#
- 2.Be4#
- 1...g4
- 2.Qf6#
- 1...Kg4
- 1.Qh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(a);N_GUARD,S_FLIGHT::QAR1(A)
- P(b);SBLOCK::QAR1(A)
- Tries
- Try
- K(D);S_FLIGHT
- Vars
- P(b);SBLOCK::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- B(B);
- Threat
- QAR1(A)
- Vars
- K(a);S_FLIGHT::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(A);
- Vars
- K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(A)
- K(a);N_GUARD,S_FLIGHT::QAR1(A)
- P(b);SBLOCK::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- K(a);N_GUARD,S_FLIGHT::QAR1(A)
- P(b);SBLOCK::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(A);
- Vars
- K(a);N_GUARD,S_FLIGHT::QAR1(A)
- P(b);SBLOCK::QAR1(A)
- Refutation
- K(a);P_SPINP(b),S_FLIGHT
- Try
- Q(A);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(A)
- P(b);SBLOCK::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- Actual
- Q(A);
- Vars
- K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(A)
- K(a);N_GUARD,S_FLIGHT::QAR1(A)
- P(b);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).