MESON Chess Problem Database
Problem Display
PID: 66763 (7k/5Qn1/Rn6/8/8/8/8/R3K3 w Q - 0 1)
Hoffmann, Martin Wolfgang
Comm., Schweizerische Schachzeitung, 1976
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Sa4
- 2.Rh6#
- 1...Sc4
- 2.Rh6#
- 1...Sd5
- 2.Rh6#
- 1...Sd7
- 2.Rh6#
- 1...Sa8
- 2.Rh6#
- 1...Sc8
- 2.Rh6#
- 1...Sa4
- Tries
- 1.R1a5?
- 1...Kh7
- 2.Rh5#
- 1...Sa4
- 2.Rh6#
- 1...Sc4
- 2.Rh6#
- 1...Sd5
- 2.Rh6#
- 1...Sd7
- 2.Rh6#
- 1...Sa8
- 2.Rh6#
- 1...Sc8
- 2.Rh6#
- 1...Sh5
- 2.Rxh5#
- 1...Se6
- 2.Rh5#
- 1...Se8
- 2.Rh5#
- 1...Sf5!
- 1...Kh7
- 1.Ra7?
- threat
- 2.Qxg7#
- 1...Kh7
- 2.Qxg7#
- 1...Sf5
- 2.Qe8#
- 2.Qh7#
- 2.Qf8#
- 1...Sh5
- 2.Qe8#
- 2.Qh7#
- 2.Qf8#
- 1...Se6
- 2.Qh7#
- 1...Se8
- 2.Qxe8#
- 2.Qh7#
- 2.Qf8#
- 1...Sd7!
- threat
- 1.R1a5?
- Keys
- 1.0-0-0!
- 1...Kh7
- 2.Rh1#
- 1...Sf5
- 2.Rd8#
- 1...Sa4
- 2.Rh6#
- 1...Sc4
- 2.Rh6#
- 1...Sd5
- 2.Rh6#
- 1...Sd7
- 2.Rh6#
- 1...Sa8
- 2.Rh6#
- 1...Sc8
- 2.Rh6#
- 1...Sh5
- 2.Rd8#
- 1...Se6
- 2.Rh1#
- 1...Se8
- 2.Rh1#
- 1...Kh7
- 1.0-0-0!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- S(a);OGATE::R(C)
- Tries
- Try
- R(A);
- Vars
- K(c);P-FLIGHT,P_SPINS(b)::R(A)
- S(a);OGATE::R(C)
- S(b);N_GUARD::R(A),XS(b)
- S(b);N_GUARD::R(A)
- Refutation
- S(b);
- Try
- R(C);
- Threat
- QAB1(D),XS(b)
- Vars
- K(c);P-FLIGHT,P_SPINS(b)::QAR1(D),XS(b)
- S(b);OGATE::QAR1(D)
- Refutation
- S(a);
- Try
- Actual
- K(B);0-0-0
- Vars
- K(c);P-FLIGHT,P_SPINS(b)::R(A)
- S(b);N_GUARD::R(A)
- S(a);OGATE::R(C)
- S(a);OGATE,SBLOCK::R(C)
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).