MESON Chess Problem Database
Problem Display
PID: 232327 (2B5/6QK/5P2/7N/7k/4n3/8/8 w - - 0 1)
Speckmann, Werner
Deutsche Schachzeitung, 1971
#2
5 + 2
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kxh5
- 2.Qh6#
- 1...Sd1
- 2.Qg4#
- 1...Sf1
- 2.Qg4#
- 1...Sc2
- 2.Qg4#
- 1...Sg2
- 2.Qg4#
- 1...Sc4
- 2.Qg4#
- 1...Sg4
- 2.Qxg4#
- 1...Sd5
- 2.Qg4#
- 1...Kxh5
- Tries
- 1.Kh6?
- threat
- 2.Qg3#
- 2.Qg5#
- 1...Sg4+
- 2.Qxg4#
- 1...Sf1
- 2.Qg4#
- 2.Qg5#
- 1...Sf5+!
- threat
- 1.Sg3?
- 1...Sg4
- 2.Qxg4#
- 1...Sd1
- 2.Qg4#
- 1...Sf1
- 2.Qg4#
- 1...Sc2
- 2.Qg4#
- 1...Sg2
- 2.Qg4#
- 1...Sc4
- 2.Qg4#
- 1...Sd5
- 2.Qg4#
- 1...Sf5!
- 1...Sg4
- 1.Sf4?
- 1...Sg4
- 2.Qxg4#
- 1...Sd1
- 2.Qg4#
- 1...Sf1
- 2.Qg4#
- 1...Sc2
- 2.Qg4#
- 1...Sg2
- 2.Qg4#
- 1...Sc4
- 2.Qg4#
- 1...Sd5
- 2.Qg4#
- 1...Sf5!
- 1...Sg4
- 1.Bf5?
- 1...Kxh5
- 2.Qh6#
- 1...Sg4
- 2.Qxg4#
- 1...Sd1
- 2.Qg4#
- 1...Sf1
- 2.Qg4#
- 1...Sc2
- 2.Qg4#
- 1...Sg2
- 2.Qg4#
- 1...Sc4
- 2.Qg4#
- 1...Sd5
- 2.Qg4#
- 1...Sxf5!
- 1...Kxh5
- 1.Be6?
- 1...Kxh5
- 2.Qh6#
- 1...Sg4
- 2.Qxg4#
- 1...Sd1
- 2.Qg4#
- 1...Sf1
- 2.Qg4#
- 1...Sc2
- 2.Qg4#
- 1...Sg2
- 2.Qg4#
- 1...Sc4
- 2.Qg4#
- 1...Sd5
- 2.Qg4#
- 1...Sf5!
- 1...Kxh5
- 1.Bd7?
- 1...Kxh5
- 2.Qh6#
- 1...Sg4
- 2.Qxg4#
- 1...Sd1
- 2.Qg4#
- 1...Sf1
- 2.Qg4#
- 1...Sc2
- 2.Qg4#
- 1...Sg2
- 2.Qg4#
- 1...Sc4
- 2.Qg4#
- 1...Sd5
- 2.Qg4#
- 1...Sf5!
- 1...Kxh5
- 1.Qg6?
- 1...Sg4
- 2.Qxg4#
- 1...Sd1
- 2.Qg4#
- 1...Sf1
- 2.Qg4#
- 1...Sc2
- 2.Qg4#
- 1...Sg2
- 2.Qg4#
- 1...Sc4
- 2.Qg4#
- 1...Sd5
- 2.Qg4#
- 1...Sf5!
- 1...Sg4
- 1.f7?
- 1...Kxh5
- 2.Qh6#
- 1...Sg4
- 2.Qxg4#
- 1...Sd1
- 2.Qg4#
- 1...Sf1
- 2.Qg4#
- 1...Sc2
- 2.Qg4#
- 1...Sg2
- 2.Qg4#
- 1...Sc4
- 2.Qg4#
- 1...Sd5
- 2.Qg4#
- 1...Sf5!
- 1...Kxh5
- 1.Kh6?
- Keys
- 1.Bh3!
- 1...Kxh3
- 2.Qg3#
- 1...Kxh5
- 2.Qh6#
- 1...Sd1
- 2.Qg4#
- 1...Sf1
- 2.Qg4#
- 1...Sc2
- 2.Qg4#
- 1...Sg2
- 2.Qg4#
- 1...Sc4
- 2.Qg4#
- 1...Sg4
- 2.Qxg4#
- 1...Sd5
- 2.Qg4#
- 1...Sf5
- 2.Qg4#
- 1...Kxh3
- 1.Bh3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(b);OGATEB,P-FLIGHT,XS(A)::QAR1(C)
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- Tries
- Try
- K(D);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- S(a);CHECK,N_GUARD::QAR1(C),XS(a)
- Refutation
- S(a);CHECK
- Try
- S(A);
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- Refutation
- S(a);
- Try
- S(A);
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- Refutation
- S(a);
- Try
- B(E);
- Vars
- K(b);OGATEB,P-FLIGHT,XS(A)::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- Refutation
- S(a);XB(E)
- Try
- B(E);
- Vars
- K(b);OGATEB,P-FLIGHT,XS(A)::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- Refutation
- S(a);
- Try
- B(E);
- Vars
- K(b);OGATEB,P-FLIGHT,XS(A)::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- Refutation
- S(a);
- Try
- Q(C);
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- Refutation
- S(a);
- Try
- P(B);
- Vars
- K(b);OGATEB,P-FLIGHT,XS(A)::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- Refutation
- S(a);
- Try
- Actual
- B(E);
- Vars
- K(b);P-FLIGHT,XB(E)::QAR1(C)
- K(b);OGATEB,P-FLIGHT,XS(A)::QAR1(C)
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(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).