MESON Chess Problem Database
Problem Display
PID: 2473 (1q6/2N2Q2/3k4/3P4/3B1K2/8/8/8 w - - 0 1)
Lazard, Frederic
Die Schwalbe, 1933
#2
5 + 2
| 3295 | Einfuhrung in die Welt des Schachproblem | 1984 |
SOLUTION
- SOUND
- Sets
- 1...Qa7
- 2.Sb5#
- 2.Se8#
- 1...Qxc7
- 2.Qe6#
- 1...Qb1
- 2.Se8#
- 1...Qb2
- 2.Se8#
- 1...Qb3
- 2.Se8#
- 1...Qb4
- 2.Se8#
- 1...Qb5
- 2.Sxb5#
- 1...Qb6
- 2.Se8#
- 1...Qb7
- 2.Se8#
- 1...Qa8
- 2.Sb5#
- 1...Qc8
- 2.Sb5#
- 1...Qd8
- 2.Sb5#
- 1...Qe8
- 2.Sxe8#
- 1...Qf8
- 2.Sb5#
- 1...Qg8
- 2.Sb5#
- 1...Qh8
- 2.Sb5#
- 1...Qa7
- Tries
- 1.Ke3?
- 1...Qe8+
- 2.Sxe8#
- 1...Qxc7
- 2.Qe6#
- 1...Qa7
- 2.Sb5#
- 2.Se8#
- 1...Qb1
- 2.Se8#
- 1...Qb2
- 2.Se8#
- 1...Qb4
- 2.Se8#
- 1...Qb5
- 2.Sxb5#
- 1...Qb6
- 2.Se8#
- 1...Qb7
- 2.Se8#
- 1...Qa8
- 2.Sb5#
- 1...Qc8
- 2.Sb5#
- 1...Qd8
- 2.Sb5#
- 1...Qf8
- 2.Sb5#
- 1...Qg8
- 2.Sb5#
- 1...Qh8
- 2.Sb5#
- 1...Qb3+!
- 1...Qe8+
- 1.Kf3?
- 1...Qxc7
- 2.Qe6#
- 1...Qa7
- 2.Sb5#
- 2.Se8#
- 1...Qb1
- 2.Se8#
- 1...Qb2
- 2.Se8#
- 1...Qb4
- 2.Se8#
- 1...Qb5
- 2.Sxb5#
- 1...Qb6
- 2.Se8#
- 1...Qb7
- 2.Se8#
- 1...Qa8
- 2.Sb5#
- 1...Qc8
- 2.Sb5#
- 1...Qd8
- 2.Sb5#
- 1...Qe8
- 2.Sxe8#
- 1...Qf8
- 2.Sb5#
- 1...Qg8
- 2.Sb5#
- 1...Qh8
- 2.Sb5#
- 1...Qb3+!
- 1...Qxc7
- 1.Ke4?
- 1...Qe8+
- 2.Sxe8#
- 1...Qxc7
- 2.Qe6#
- 1...Qa7
- 2.Sb5#
- 2.Se8#
- 1...Qb2
- 2.Se8#
- 1...Qb3
- 2.Se8#
- 1...Qb4
- 2.Se8#
- 1...Qb5
- 2.Sxb5#
- 1...Qb6
- 2.Se8#
- 1...Qb7
- 2.Se8#
- 1...Qa8
- 2.Sb5#
- 1...Qc8
- 2.Sb5#
- 1...Qd8
- 2.Sb5#
- 1...Qf8
- 2.Sb5#
- 1...Qg8
- 2.Sb5#
- 1...Qh8
- 2.Sb5#
- 1...Qb1+!
- 1...Qe8+
- 1.Bg1?
- 1...Qxc7
- 2.Qe6#
- 1...Qa7
- 2.Sb5#
- 2.Se8#
- 1...Qb1
- 2.Se8#
- 1...Qb2
- 2.Se8#
- 1...Qb3
- 2.Se8#
- 1...Qb5
- 2.Sxb5#
- 1...Qb6
- 2.Se8#
- 1...Qb7
- 2.Se8#
- 1...Qa8
- 2.Sb5#
- 1...Qc8
- 2.Sb5#
- 1...Qd8
- 2.Sb5#
- 1...Qe8
- 2.Sxe8#
- 1...Qf8
- 2.Sb5#
- 1...Qg8
- 2.Sb5#
- 1...Qh8
- 2.Sb5#
- 1...Qb4+!
- 1...Qxc7
- 1.Bf2?
- 1...Qxc7
- 2.Qe6#
- 1...Qa7
- 2.Sb5#
- 2.Se8#
- 1...Qb1
- 2.Se8#
- 1...Qb2
- 2.Se8#
- 1...Qb3
- 2.Se8#
- 1...Qb5
- 2.Sxb5#
- 1...Qb6
- 2.Se8#
- 1...Qb7
- 2.Se8#
- 1...Qa8
- 2.Sb5#
- 1...Qc8
- 2.Sb5#
- 1...Qd8
- 2.Sb5#
- 1...Qe8
- 2.Sxe8#
- 1...Qf8
- 2.Sb5#
- 1...Qg8
- 2.Sb5#
- 1...Qh8
- 2.Sb5#
- 1...Qb4+!
- 1...Qxc7
- 1.Be3?
- 1...Qxc7
- 2.Qe6#
- 1...Qa7
- 2.Sb5#
- 2.Se8#
- 1...Qb1
- 2.Se8#
- 1...Qb2
- 2.Se8#
- 1...Qb3
- 2.Se8#
- 1...Qb5
- 2.Sxb5#
- 1...Qb6
- 2.Se8#
- 1...Qb7
- 2.Se8#
- 1...Qa8
- 2.Sb5#
- 1...Qc8
- 2.Sb5#
- 1...Qd8
- 2.Sb5#
- 1...Qe8
- 2.Sxe8#
- 1...Qf8
- 2.Sb5#
- 1...Qg8
- 2.Sb5#
- 1...Qh8
- 2.Sb5#
- 1...Qb4+!
- 1...Qxc7
- 1.Bb6?
- threat
- 2.Sb5#
- 2.Qe6#
- 1...Qxc7
- 2.Qe6#
- 1...Qc8
- 2.Sb5#
- 1...Qe8
- 2.Sxe8#
- 1...Qf8
- 2.Sb5#
- 1...Qg8
- 2.Sb5#
- 1...Qxb6!
- threat
- 1.Ke3?
- Keys
- 1.Sa6!
- threat
- 2.Bc5#
- 2.Be5#
- 2.Qe6#
- 1...Qa7
- 2.Be5#
- 2.Qe6#
- 1...Qc7
- 2.Be5#
- 2.Qe6#
- 1...Qb2
- 2.Bc5#
- 2.Qe6#
- 1...Qb4
- 2.Qe6#
- 1...Qb5
- 2.Be5#
- 2.Qe6#
- 1...Qb6
- 2.Be5#
- 2.Qe6#
- 1...Qc8
- 2.Be5#
- 1...Qe8
- 2.Bc5#
- 1...Qf8
- 2.Bc5#
- 2.Be5#
- 1...Qg8
- 2.Bc5#
- 2.Be5#
- 1...Qh8
- 2.Bc5#
- 2.Qe6#
- threat
- 1.Sa6!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 12
- Sets
- Q(b);SBLOCK,XS(D)::QAR1(E)
- Q(b);N_GUARD::S(D)
- Q(b);N_GUARD,P_PINB(A)::S(D)
- Q(b);N_GUARD::S(D),XQ(b)
- Q(b);N_GUARD,P_PINQ(E)::S(D)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- Q(b);CHECK,N_GUARD::S(D),XQ(b)
- Q(b);SBLOCK,XS(D)::QAR1(E)
- Q(b);N_GUARD::S(D)
- Q(b);N_GUARD::S(D),XQ(b)
- Q(b);N_GUARD,P_PINB(A)::S(D)
- Refutation
- Q(b);CHECK
- Try
- K(B);P-FLIGHT
- Vars
- Q(b);SBLOCK,XS(D)::QAR1(E)
- Q(b);N_GUARD::S(D)
- Q(b);N_GUARD::S(D),XQ(b)
- Q(b);N_GUARD,P_PINP(C)::S(D)
- Q(b);N_GUARD,P_PINQ(E)::S(D)
- Refutation
- Q(b);CHECK
- Try
- K(B);P-FLIGHT
- Vars
- Q(b);CHECK,N_GUARD::S(D),XQ(b)
- Q(b);SBLOCK,XS(D)::QAR1(E)
- Q(b);N_GUARD::S(D)
- Q(b);N_GUARD,P_PINB(A)::S(D)
- Q(b);N_GUARD::S(D),XQ(b)
- Q(b);N_GUARD,P_PINP(C)::S(D)
- Refutation
- Q(b);CHECK
- Try
- B(A);
- Vars
- Q(b);SBLOCK,XS(D)::QAR1(E)
- Q(b);N_GUARD::S(D)
- Q(b);N_GUARD::S(D),XQ(b)
- Q(b);N_GUARD,P_PINQ(E)::S(D)
- Refutation
- Q(b);CHECK
- Try
- B(A);
- Vars
- Q(b);SBLOCK,XS(D)::QAR1(E)
- Q(b);N_GUARD::S(D)
- Q(b);N_GUARD::S(D),XQ(b)
- Q(b);N_GUARD,P_PINQ(E)::S(D)
- Refutation
- Q(b);CHECK
- Try
- B(A);
- Vars
- Q(b);SBLOCK,XS(D)::QAR1(E)
- Q(b);N_GUARD::S(D)
- Q(b);N_GUARD::S(D),XQ(b)
- Q(b);N_GUARD,P_PINQ(E)::S(D)
- Refutation
- Q(b);CHECK
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- Q(b);XS(D)::QAR1(E)
- Q(b);::S(D)
- Q(b);N_GUARD::S(D),XQ(b)
- Q(b);P_PINQ(E)::S(D)
- Refutation
- Q(b);XB(A)
- Try
- Actual
- S(D);
- Threat
- DUALS(3)
- Vars
- Q(b);P_PINB(A)::QAR1(E)
- Q(b);::B(A)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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