MESON Chess Problem Database
Problem Display
PID: 57313 (8/2n5/1np5/R1Pp2N1/3k1Pp1/2R1p3/1p2PN2/1K2B3 w - - 0 1)
Jerrard, Ernest Haslam Harvey
3rd Prize, Brisbane Courier, 1918-1919
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Sa4
- 2.Rxa4#
- 1...Sc4
- 2.Rd3#
- 1...Sd7
- 2.Ra4#
- 1...Sba8
- 2.Ra4#
- 1...Sc8
- 2.Ra4#
- 1...Sb5
- 2.Se6#
- 1...Sa6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sca8
- 2.Se6#
- 1...Se8
- 2.Se6#
- 1...exf2
- 2.e3#
- 1...g3
- 2.Sf3#
- 1...Sa4
- Tries
- 1.Kxb2?
- 1...Sa4+
- 2.Rxa4#
- 1...exf2
- 2.Bxf2#
- 2.e3#
- 1...Sd7
- 2.Ra4#
- 1...Sba8
- 2.Ra4#
- 1...Sc8
- 2.Ra4#
- 1...Sb5
- 2.Se6#
- 1...Sa6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sca8
- 2.Se6#
- 1...Se8
- 2.Se6#
- 1...g3
- 2.Sf3#
- 1...Sc4+!
- 1...Sa4+
- 1.Bd2?
- 1...exf2
- 2.e3#
- 1...Sb5
- 2.Se6#
- 1...Sa4
- 2.Rxa4#
- 1...Sc4
- 2.Rd3#
- 1...Sd7
- 2.Ra4#
- 1...Sba8
- 2.Ra4#
- 1...Sc8
- 2.Ra4#
- 1...Sa6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sca8
- 2.Se6#
- 1...Se8
- 2.Se6#
- 1...g3
- 2.Sf3#
- 1...exd2!
- 1...exf2
- 1.Ra2?
- 1...exf2
- 2.e3#
- 1...Sb5
- 2.Se6#
- 1...Sa4
- 2.Rxa4#
- 1...Sd7
- 2.Ra4#
- 1...Sba8
- 2.Ra4#
- 1...Sc8
- 2.Ra4#
- 1...Sa6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sca8
- 2.Se6#
- 1...Se8
- 2.Se6#
- 1...g3
- 2.Sf3#
- 1...Sc4!
- 1...exf2
- 1.Raa3?
- 1...exf2
- 2.Bxf2#
- 2.e3#
- 1...Sb5
- 2.Se6#
- 1...Sa4
- 2.Rxa4#
- 1...Sd7
- 2.Ra4#
- 1...Sba8
- 2.Ra4#
- 1...Sc8
- 2.Ra4#
- 1...Sa6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sca8
- 2.Se6#
- 1...Se8
- 2.Se6#
- 1...g3
- 2.Sf3#
- 1...Sc4!
- 1...exf2
- 1.Rb5?
- 1...Sxb5
- 2.Se6#
- 1...exf2
- 2.e3#
- 1...Sa4
- 2.Rb4#
- 1...Sc4
- 2.Rd3#
- 1...Sd7
- 2.Rb4#
- 1...Sba8
- 2.Rb4#
- 1...Sc8
- 2.Rb4#
- 1...Sa6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sca8
- 2.Se6#
- 1...Se8
- 2.Se6#
- 1...g3
- 2.Sf3#
- 1...cxb5!
- 1...Sxb5
- 1.Ra6?
- 1...Sxa6
- 2.Se6#
- 1...exf2
- 2.e3#
- 1...Sb5
- 2.Se6#
- 1...Sa4
- 2.Rxa4#
- 1...Sd7
- 2.Ra4#
- 1...Sba8
- 2.Ra4#
- 1...Sc8
- 2.Ra4#
- 1...Se6
- 2.Sxe6#
- 1...Sca8
- 2.Se6#
- 1...Se8
- 2.Se6#
- 1...g3
- 2.Sf3#
- 1...Sc4!
- 1...Sxa6
- 1.Ra7?
- 1...exf2
- 2.e3#
- 1...Sb5
- 2.Se6#
- 1...Sa4
- 2.Rxa4#
- 1...Sd7
- 2.Ra4#
- 1...Sba8
- 2.Ra4#
- 1...Sc8
- 2.Ra4#
- 1...Sa6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sca8
- 2.Se6#
- 1...Se8
- 2.Se6#
- 1...g3
- 2.Sf3#
- 1...Sc4!
- 1...exf2
- 1.cxb6?
- threat
- 2.Ra4#
- 1...Sa6
- 2.Se6#
- 1...c5!
- threat
- 1.Kxb2?
- Keys
- 1.Rc2!
- 1...exf2
- 2.Bxf2#
- 1...Sb5
- 2.Se6#
- 1...Sa4
- 2.Rxa4#
- 1...Sc4
- 2.Bc3#
- 1...Sd7
- 2.Ra4#
- 1...Sba8
- 2.Ra4#
- 1...Sc8
- 2.Ra4#
- 1...Sa6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sca8
- 2.Se6#
- 1...Se8
- 2.Se6#
- 1...g3
- 2.Sf3#
- 1...exf2
- 1.Rc2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(f);N_GUARD::R(G),XS(f)
- S(f);SBLOCK::R1(E)
- S(f);N_GUARD::R(G)
- S(h);N_GUARD::S(I)
- S(h);N_GUARD::S(I),XS(h)
- P(b);OGATE,XS(D)::P(C)
- P(d);N_GUARD::S(I)
- Tries
- Try
- K(A);P-FLIGHT,XP(a)
- Vars
- S(f);CHECK,N_GUARD::R(G),XS(f)
- S(f);N_GUARD::R(G)
- S(h);N_GUARD::S(I)
- S(h);N_GUARD::S(I),XS(h)
- P(d);N_GUARD::S(I)
- Refutation
- S(f);CHECK
- Try
- B(B);
- Vars
- P(b);OGATE,XS(D)::P(C)
- S(h);N_GUARD::S(I)
- S(f);N_GUARD::R(G),XS(f)
- S(f);SBLOCK::R1(E)
- S(f);N_GUARD::R(G)
- S(h);N_GUARD::S(I),XS(h)
- P(d);N_GUARD::S(I)
- Refutation
- P(b);XB(B)
- Try
- R(G);
- Vars
- P(b);OGATE,XS(D)::P(C)
- S(h);N_GUARD::S(I)
- S(f);N_GUARD::R(G),XS(f)
- S(f);N_GUARD::R(G)
- S(h);N_GUARD::S(I),XS(h)
- P(d);N_GUARD::S(I)
- Refutation
- S(f);
- Try
- R(G);
- Vars
- S(h);N_GUARD::S(I)
- S(f);N_GUARD::R(G),XS(f)
- S(f);N_GUARD::R(G)
- S(h);N_GUARD::S(I),XS(h)
- P(d);N_GUARD::S(I)
- Refutation
- S(f);
- Try
- R(G);
- Vars
- S(h);N_GUARD,XR(G)::S(I)
- P(b);OGATE,XS(D)::P(C)
- S(f);N_GUARD::R(G)
- S(f);SBLOCK::R1(E)
- S(h);N_GUARD::S(I)
- S(h);N_GUARD::S(I),XS(h)
- P(d);N_GUARD::S(I)
- Refutation
- P(g);XR(G)
- Try
- R(G);
- Vars
- S(h);N_GUARD,XR(G)::S(I)
- P(b);OGATE,XS(D)::P(C)
- S(h);N_GUARD::S(I)
- S(f);N_GUARD::R(G),XS(f)
- S(f);N_GUARD::R(G)
- S(h);N_GUARD::S(I),XS(h)
- P(d);N_GUARD::S(I)
- Refutation
- S(f);
- Try
- R(G);
- Vars
- P(b);OGATE,XS(D)::P(C)
- S(h);N_GUARD::S(I)
- S(f);N_GUARD::R(G),XS(f)
- S(f);N_GUARD::R(G)
- S(h);N_GUARD::S(I),XS(h)
- P(d);N_GUARD::S(I)
- Refutation
- S(f);
- Try
- P(H);XS(f)
- Threat
- R(G)
- Vars
- S(h);N_GUARD::S(I)
- Refutation
- P(g);
- Try
- Actual
- R(E);
- Vars
- P(b);OGATE,XS(D)::B(B),XP(b)
- S(h);N_GUARD::S(I)
- S(f);N_GUARD::R(G),XS(f)
- S(f);SBLOCK::B(B)
- S(f);N_GUARD::R(G)
- S(h);N_GUARD::S(I),XS(h)
- P(d);N_GUARD::S(I)
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).