MESON Chess Problem Database
Problem Display
PID: 11700 (3k4/2R3R1/KP1n4/8/8/8/8/8 w - - 0 1)
Speckmann, Werner
Deutsche Schachzeitung, 1971
#2
4 + 2
| 3295 | Einfuhrung in die Welt des Schachproblem | 1984 |
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ke8
- 2.Rg8#
- 1...Sc4
- 2.Rg8#
- 1...Se4
- 2.Rg8#
- 1...Sb5
- 2.Rg8#
- 1...Sf5
- 2.Rg8#
- 1...Sb7
- 2.Rg8#
- 1...Sf7
- 2.Rg8#
- 1...Sc8
- 2.Rg8#
- 1...Se8
- 2.Rgd7#
- 1...Ke8
- Tries
- 1.Rg1?
- 1...Ke8
- 2.Rg8#
- 1...Sc4
- 2.Rg8#
- 1...Se4
- 2.Rg8#
- 1...Sb5
- 2.Rg8#
- 1...Sf5
- 2.Rg8#
- 1...Sb7
- 2.Rg8#
- 1...Sf7
- 2.Rg8#
- 1...Sc8
- 2.Rg8#
- 1...Se8!
- 1...Ke8
- 1.Rg2?
- 1...Ke8
- 2.Rg8#
- 1...Sc4
- 2.Rg8#
- 1...Se4
- 2.Rg8#
- 1...Sb5
- 2.Rg8#
- 1...Sf5
- 2.Rg8#
- 1...Sb7
- 2.Rg8#
- 1...Sf7
- 2.Rg8#
- 1...Sc8
- 2.Rg8#
- 1...Se8!
- 1...Ke8
- 1.Rg3?
- 1...Ke8
- 2.Rg8#
- 1...Sc4
- 2.Rg8#
- 1...Se4
- 2.Rg8#
- 1...Sb5
- 2.Rg8#
- 1...Sf5
- 2.Rg8#
- 1...Sb7
- 2.Rg8#
- 1...Sf7
- 2.Rg8#
- 1...Sc8
- 2.Rg8#
- 1...Se8!
- 1...Ke8
- 1.Rg4?
- 1...Ke8
- 2.Rg8#
- 1...Sc4
- 2.Rg8#
- 1...Se4
- 2.Rg8#
- 1...Sb5
- 2.Rg8#
- 1...Sf5
- 2.Rg8#
- 1...Sb7
- 2.Rg8#
- 1...Sf7
- 2.Rg8#
- 1...Sc8
- 2.Rg8#
- 1...Se8!
- 1...Ke8
- 1.Rg5?
- 1...Ke8
- 2.Rg8#
- 1...Sc4
- 2.Rg8#
- 1...Se4
- 2.Rg8#
- 1...Sb5
- 2.Rg8#
- 1...Sf5
- 2.Rg8#
- 1...Sb7
- 2.Rg8#
- 1...Sf7
- 2.Rg8#
- 1...Sc8
- 2.Rg8#
- 1...Se8!
- 1...Ke8
- 1.Rg6?
- 1...Ke8
- 2.Rg8#
- 1...Sc4
- 2.Rg8#
- 1...Se4
- 2.Rg8#
- 1...Sb5
- 2.Rg8#
- 1...Sf5
- 2.Rg8#
- 1...Sb7
- 2.Rg8#
- 1...Sf7
- 2.Rg8#
- 1...Sc8
- 2.Rg8#
- 1...Se8!
- 1...Ke8
- 1.Rh7?
- 1...Ke8
- 2.Rh8#
- 1...Se8
- 2.Rhd7#
- 1...Sc4
- 2.Rh8#
- 1...Se4
- 2.Rh8#
- 1...Sb5
- 2.Rh8#
- 1...Sf5
- 2.Rh8#
- 1...Sb7
- 2.Rh8#
- 1...Sc8
- 2.Rh8#
- 1...Sf7!
- 1...Ke8
- 1.b7?
- 1...Ke8
- 2.Rg8#
- 1...Sf7
- 2.b8Q#
- 1...Se8
- 2.Rcd7#
- 2.Rc8#
- 2.Rgd7#
- 2.b8Q#
- 2.b8R#
- 1...Sc4
- 2.Rc8#
- 2.b8Q#
- 2.b8R#
- 1...Se4
- 2.Rc8#
- 2.b8Q#
- 2.b8R#
- 1...Sb5
- 2.Rc8#
- 2.b8Q#
- 2.b8R#
- 1...Sf5
- 2.Rc8#
- 2.b8Q#
- 2.b8R#
- 1...Sc8
- 2.Rxc8#
- 2.bxc8Q#
- 2.bxc8R#
- 1...Sxb7!
- 1...Ke8
- 1.Rg1?
- Keys
- 1.Ra7!
- 1...Kc8
- 2.Ra8#
- 1...Ke8
- 2.Rg8#
- 1...Sc4
- 2.Ra8#
- 2.Rg8#
- 1...Se4
- 2.Ra8#
- 2.Rg8#
- 1...Sb5
- 2.Ra8#
- 2.Rg8#
- 1...Sf5
- 2.Ra8#
- 2.Rg8#
- 1...Sb7
- 2.Ra8#
- 1...Sf7
- 2.Rg8#
- 1...Sc8
- 2.Rg8#
- 1...Se8
- 2.Ra8#
- 1...Kc8
- 1.Ra7!
Anticipated by 2075(1350), 4672(1886), 249051(1947), 132734(1958)
This anticipates 176200(1976), 152675(2011)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- K(b);P-FLIGHT::R(D)
- S(a);N_GUARD::R(D)
- S(a);SBLOCK::R1(D)
- Tries
- Try
- R(D);
- Vars
- K(b);P-FLIGHT::R(D)
- S(a);N_GUARD::R(D)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- K(b);P-FLIGHT::R(D)
- S(a);N_GUARD::R(D)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- K(b);P-FLIGHT::R(D)
- S(a);N_GUARD::R(D)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- K(b);P-FLIGHT::R(D)
- S(a);N_GUARD::R(D)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- K(b);P-FLIGHT::R(D)
- S(a);N_GUARD::R(D)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- K(b);P-FLIGHT::R(D)
- S(a);N_GUARD::R(D)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- K(b);P-FLIGHT::R(D)
- S(a);SBLOCK::R1(D)
- S(a);N_GUARD::R(D)
- Refutation
- S(a);
- Try
- P(B);
- Vars
- K(b);P-FLIGHT::R(D)
- S(a);N_GUARD::P=Q
- Refutation
- S(a);XP(B)
- Try
- Actual
- R(C);
- Vars
- K(b);P-FLIGHT::R(C)
- K(b);P-FLIGHT::R(D)
- S(a);N_GUARD::R(C)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD,SBLOCK::R(D)
- S(a);N_GUARD,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).