MESON Chess Problem Database
Problem Display
PID: 262779 (1Knk4/1R6/1n2PN2/8/8/8/8/8 w - - 0 1)
Jakubowski, Grzegorz
Szachy, 1990
#2
4 + 3
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Sa4
- 2.Rd7#
- 1...Sc4
- 2.Rd7#
- 1...Sd5
- 2.Rd7#
- 1...Sd7+
- 2.Rxd7#
- 1...Sa8
- 2.Rd7#
- 1...Sd6
- 2.e7#
- 1...Sa7
- 2.e7#
- 1...Sa4
- Tries
- 1.Rc7?
- 1...Sd7+
- 2.Rxd7#
- 1...Sa4
- 2.Rd7#
- 1...Sc4
- 2.Rd7#
- 1...Sd5
- 2.Rd7#
- 1...Sa8
- 2.Rd7#
- 1...Sd6
- 2.e7#
- 1...Sa7
- 2.e7#
- 1...Se7!
- 1...Sd7+
- 1.Rg7?
- 1...Sd7+
- 2.Rxd7#
- 1...Sa4
- 2.Rd7#
- 1...Sc4
- 2.Rd7#
- 1...Sd5
- 2.Rd7#
- 1...Sa8
- 2.Rd7#
- 1...Sd6
- 2.e7#
- 1...Sa7
- 2.e7#
- 1...Se7!
- 1...Sd7+
- 1.Rh7?
- 1...Sd7+
- 2.Rxd7#
- 1...Sa4
- 2.Rd7#
- 1...Sc4
- 2.Rd7#
- 1...Sd5
- 2.Rd7#
- 1...Sa8
- 2.Rd7#
- 1...Sd6
- 2.e7#
- 1...Sa7
- 2.e7#
- 1...Se7!
- 1...Sd7+
- 1.Rc7?
- Keys
- 1.Rf7!
- 1...Sd7+
- 2.Rxd7#
- 1...Se7
- 2.Rf8#
- 1...Sa4
- 2.Rd7#
- 1...Sc4
- 2.Rd7#
- 1...Sd5
- 2.Rd7#
- 1...Sa8
- 2.Rd7#
- 1...Sd6
- 2.e7#
- 1...Sa7
- 2.e7#
- 1...Sd7+
- 1.Rf7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::R1(C)
- S(a);CHECK,N_GUARD::R1(C),XS(a)
- S(b);N_GUARD::P(A)
- Tries
- Try
- R(C);
- Vars
- S(a);CHECK,N_GUARD::R1(C),XS(a)
- S(a);N_GUARD::R1(C)
- S(b);N_GUARD::P(A)
- Refutation
- S(b);
- Try
- R(C);
- Vars
- S(a);CHECK,N_GUARD::R1(C),XS(a)
- S(a);N_GUARD::R1(C)
- S(b);N_GUARD::P(A)
- Refutation
- S(b);
- Try
- R(C);
- Vars
- S(a);CHECK,N_GUARD::R1(C),XS(a)
- S(a);N_GUARD::R1(C)
- S(b);N_GUARD::P(A)
- Refutation
- S(b);
- Try
- Actual
- R(C);
- Vars
- S(a);CHECK,N_GUARD::R1(C),XS(a)
- S(b);SBLOCK::R(C)
- S(a);N_GUARD::R1(C)
- S(b);N_GUARD::P(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).