MESON Chess Problem Database
Problem Display
PID: 78494 (8/3p4/3p4/3P4/RN6/Bpk1P3/3n1p2/2NK1B2 w - - 0 1)
Ekstrom, Sven Johan Adrian
Hultberg, Gustav Herbert
Tidskrift for Schack, 1943
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Sc4
- 2.Se2#
- 1...b2
- 2.Sba2#
- 1...Sc4
- Tries
- 1.Sa6?
- 1...Sb1
- 2.Rc4#
- 1...Sf3
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Se4
- 2.Rc4#
- 1...b2
- 2.Bb4#
- 1...Sxf1!
- 1...Sb1
- 1.Ra7?
- 1...Sxf1
- 2.Rc7#
- 1...Sb1
- 2.Rc7#
- 1...Sf3
- 2.Rc7#
- 1...Sc4
- 2.Se2#
- 1...b2
- 2.Sba2#
- 1...Se4!
- 1...Sxf1
- 1.Ra8?
- 1...Sxf1
- 2.Rc8#
- 1...Sb1
- 2.Rc8#
- 1...Sf3
- 2.Rc8#
- 1...Sc4
- 2.Se2#
- 1...b2
- 2.Sba2#
- 1...Se4!
- 1...Sxf1
- 1.Sa6?
- Keys
- 1.Sbd3!
- threat
- 2.Bb2#
- 1...Sc4
- 2.Bb4#
- 1...b2
- 2.Bxb2#
- threat
- 1.Sbd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(a);SBLOCK::S(A)
- P(c);N_GUARD::S(G)
- Tries
- Try
- S(G);
- Vars
- S(a);N_GUARD::R1(F)
- S(a);N_GUARD::R1(F),XS(a)
- P(c);SBLOCK::B(D)
- Refutation
- S(a);XB(C)
- Try
- R(F);
- Vars
- S(a);N_GUARD,XB(C)::R(F)
- S(a);N_GUARD::R(F)
- S(a);SBLOCK::S(A)
- P(c);N_GUARD::S(G)
- Refutation
- S(a);
- Try
- R(F);
- Vars
- S(a);N_GUARD,XB(C)::R(F)
- S(a);N_GUARD::R(F)
- S(a);SBLOCK::S(A)
- P(c);N_GUARD::S(G)
- Refutation
- S(a);
- Try
- Actual
- S(G);
- Threat
- B(D)
- Vars
- S(a);SBLOCK::B(D)
- P(c);::B(D),XP(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).