MESON Chess Problem Database
Problem Display
PID: 21426 (8/8/5nK1/B1N1pPn1/3p1k1b/2pP1PNP/4P3/6Q1 w - - 0 1)
Perkins, Henry (Harry)
6th Prize, BCPJ (June), 1919
#2
10 + 7
| 5294 | BCPJ (August) | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Bxg3
- 2.Qc1#
- 1...Sxf3
- 2.Se6#
- 1...Sxh3
- 2.Se6#
- 1...Sge4
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sf7
- 2.Se6#
- 1...Sgh7
- 2.Se6#
- 1...Sfe4
- 2.Sh5#
- 1...Sg4
- 2.Sh5#
- 1...Sd5
- 2.Sh5#
- 1...Sh5
- 2.Sxh5#
- 1...Sd7
- 2.Sh5#
- 1...Sfh7
- 2.Sh5#
- 1...Se8
- 2.Sh5#
- 1...Sg8
- 2.Sh5#
- 1...c2
- 2.Bd2#
- 1...e4
- 2.Bc7#
- 1...Bxg3
- Tries
- 1.Bb4?
- 1...Bxg3
- 2.Qc1#
- 1...Sxf3
- 2.Se6#
- 1...Sxh3
- 2.Se6#
- 1...Sg4
- 2.Sh5#
- 1...Sge4
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sf7
- 2.Se6#
- 1...Sgh7
- 2.Se6#
- 1...Sfe4
- 2.Sh5#
- 1...Sd5
- 2.Sh5#
- 1...Sh5
- 2.Sxh5#
- 1...Sd7
- 2.Sh5#
- 1...Sfh7
- 2.Sh5#
- 1...Se8
- 2.Sh5#
- 1...Sg8
- 2.Sh5#
- 1...c2
- 2.Bd2#
- 1...e4!
- 1...Bxg3
- 1.Bb6?
- 1...Bxg3
- 2.Qc1#
- 1...Sxf3
- 2.Se6#
- 1...Sxh3
- 2.Se6#
- 1...e4
- 2.Bc7#
- 1...Sg4
- 2.Sh5#
- 1...Sge4
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sf7
- 2.Se6#
- 1...Sgh7
- 2.Se6#
- 1...Sfe4
- 2.Sh5#
- 1...Sd5
- 2.Sh5#
- 1...Sh5
- 2.Sxh5#
- 1...Sd7
- 2.Sh5#
- 1...Sfh7
- 2.Sh5#
- 1...Se8
- 2.Sh5#
- 1...Sg8
- 2.Sh5#
- 1...c2!
- 1...Bxg3
- 1.Bc7?
- 1...Bxg3
- 2.Qc1#
- 1...Sxf3
- 2.Se6#
- 1...Sxh3
- 2.Se6#
- 1...Sg4
- 2.Sh5#
- 1...Sge4
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sf7
- 2.Se6#
- 1...Sgh7
- 2.Se6#
- 1...Sfe4
- 2.Sh5#
- 1...Sd5
- 2.Sh5#
- 1...Sh5
- 2.Sxh5#
- 1...Sd7
- 2.Sh5#
- 1...Sfh7
- 2.Sh5#
- 1...Se8
- 2.Sh5#
- 1...Sg8
- 2.Sh5#
- 1...c2!
- 1...Bxg3
- 1.Bd8?
- 1...Bxg3
- 2.Qc1#
- 1...Sxf3
- 2.Se6#
- 1...Sxh3
- 2.Se6#
- 1...e4
- 2.Bc7#
- 1...Sg4
- 2.Sh5#
- 1...Sge4
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sf7
- 2.Se6#
- 1...Sgh7
- 2.Se6#
- 1...Sfe4
- 2.Sh5#
- 1...Sd5
- 2.Sh5#
- 1...Sh5
- 2.Sxh5#
- 1...Sd7
- 2.Sh5#
- 1...Sfh7
- 2.Sh5#
- 1...Se8
- 2.Sh5#
- 1...Sg8
- 2.Sh5#
- 1...c2!
- 1...Bxg3
- 1.Qf2?
- 1...Sxf3
- 2.Se6#
- 2.Qxf3#
- 1...Sxh3
- 2.Se6#
- 1...e4
- 2.Bc7#
- 1...c2
- 2.Bd2#
- 1...Sge4
- 2.Se6#
- 2.fxe4#
- 1...Se6
- 2.Sxe6#
- 1...Sf7
- 2.Se6#
- 1...Sgh7
- 2.Se6#
- 1...Sfe4
- 2.Sh5#
- 1...Sg4
- 2.Sh5#
- 1...Sd5
- 2.Sh5#
- 1...Sh5
- 2.Sxh5#
- 1...Sd7
- 2.Sh5#
- 1...Sfh7
- 2.Sh5#
- 1...Se8
- 2.Sh5#
- 1...Sg8
- 2.Sh5#
- 1...Bxg3!
- 1...Sxf3
- 1.Bb4?
- Keys
- 1.Sf1!
- 1...Sxf3
- 2.Se6#
- 1...Sxh3
- 2.Se6#
- 1...e4
- 2.Bc7#
- 1...Be1
- 2.Qxg5#
- 1...Bf2
- 2.Qxg5#
- 1...Bg3
- 2.Qxg3#
- 1...Sge4
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sf7
- 2.Se6#
- 1...Sgh7
- 2.Se6#
- 1...Sfe4
- 2.Qg4#
- 1...Sg4
- 2.Qxg4#
- 1...Sd5
- 2.Qg4#
- 1...Sh5
- 2.Qg4#
- 1...Sd7
- 2.Qg4#
- 1...Sfh7
- 2.Qg4#
- 1...Se8
- 2.Qg4#
- 1...Sg8
- 2.Qg4#
- 1...c2
- 2.Bd2#
- 1...Sxf3
- 1.Sf1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(d);SBLOCK,XS(E)::QAB(A)
- S(f);N_GUARD,XP(D)::S(H)
- S(f);N_GUARD,XP(F)::S(H)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- S(g);N_GUARD::S(E)
- S(g);N_GUARD::S(E),XS(g)
- P(a);OGATE::B(G)
- P(e);OGATEB::B(G)
- Tries
- Try
- B(G);
- Vars
- B(d);SBLOCK,XS(E)::QAB(A)
- S(f);N_GUARD,XP(D)::S(H)
- S(f);N_GUARD,XP(F)::S(H)
- S(g);N_GUARD::S(E)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- S(g);N_GUARD::S(E),XS(g)
- P(a);OGATE::B(G)
- Refutation
- P(e);
- Try
- B(G);
- Vars
- B(d);SBLOCK,XS(E)::QAB(A)
- S(f);N_GUARD,XP(D)::S(H)
- S(f);N_GUARD,XP(F)::S(H)
- P(e);OGATEB::B(G)
- S(g);N_GUARD::S(E)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- S(g);N_GUARD::S(E),XS(g)
- Refutation
- P(a);
- Try
- B(G);P_PINP(e)
- Vars
- B(d);SBLOCK,XS(E)::QAB(A)
- S(f);N_GUARD,XP(D)::S(H)
- S(f);N_GUARD,XP(F)::S(H)
- S(g);N_GUARD::S(E)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- S(g);N_GUARD::S(E),XS(g)
- Refutation
- P(a);
- Try
- B(G);
- Vars
- B(d);SBLOCK,XS(E)::QAB(A)
- S(f);N_GUARD,XP(D)::S(H)
- S(f);N_GUARD,XP(F)::S(H)
- P(e);OGATEB::B(G)
- S(g);N_GUARD::S(E)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- S(g);N_GUARD::S(E),XS(g)
- Refutation
- P(a);
- Try
- Q(A);
- Vars
- S(f);N_GUARD,XP(F)::S(H)
- P(e);OGATEB::B(G)
- P(a);OGATE::B(G)
- S(f);N_GUARD::S(H),XS(f)
- S(f);N_GUARD::S(H)
- S(g);N_GUARD::S(E)
- S(g);N_GUARD::S(E),XS(g)
- Refutation
- B(d);XS(E)
- Try
- Actual
- S(E);
- Vars
- S(f);N_GUARD,XP(D)::S(H)
- S(f);N_GUARD,XP(F)::S(H)
- P(e);OGATEB::B(G)
- B(d);N_GUARD::QAB1(A),XS(f)
- B(d);N_GUARD::QAB1(A),XB(d)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- S(g);N_GUARD::QAR1(A)
- S(g);N_GUARD::QAR1(A),XS(g)
- P(a);OGATE::B(G)
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).