MESON Chess Problem Database
Problem Display
PID: 63854 (5b2/3K2R1/2Np1P2/1n1N1k1r/4pP1r/2B5/4B3/8 w - - 0 1)
Hirst, CA
Chess Amateur (The), 1909
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Bg4#
- 1...Rh2
- 2.Bg4#
- 1...Rh3
- 2.Bg4#
- 1...Rxf4
- 2.Se3#
- 1...Rg4
- 2.Bxg4#
- 1...Rg5
- 2.Rxg5#
- 1...Rh6
- 2.Rg5#
- 1...Rh8
- 2.Rg5#
- 1...Be7
- 2.Scxe7#
- 1...Bxg7
- 2.Sce7#
- 1...Sa3
- 2.Sd4#
- 1...Sxc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...e3
- 2.Bd3#
- 1...Rh1
- Tries
- 1.Bd1?
- 1...Rxf4
- 2.Se3#
- 1...Bxg7
- 2.Sce7#
- 1...Sxc3
- 2.Sd4#
- 1...e3
- 2.Bc2#
- 1...Rh1
- 2.Bg4#
- 1...Rh2
- 2.Bg4#
- 1...Rh3
- 2.Bg4#
- 1...Rg4
- 2.Bxg4#
- 1...Rg5
- 2.Rxg5#
- 1...Rh6
- 2.Rg5#
- 1...Rh8
- 2.Rg5#
- 1...Be7
- 2.Scxe7#
- 1...Sa3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Rh7!
- 1...Rxf4
- 1.Bxb5?
- threat
- 2.Sd4#
- 1...Rxf4
- 2.Se3#
- 1...Rg5
- 2.Rxg5#
- 1...e3
- 2.Bd3#
- 1...Bxg7!
- threat
- 1.Ba1?
- 1...Rxf4
- 2.Se3#
- 1...Bxg7
- 2.Sce7#
- 1...e3
- 2.Bd3#
- 1...Rh1
- 2.Bg4#
- 1...Rh2
- 2.Bg4#
- 1...Rh3
- 2.Bg4#
- 1...Rg4
- 2.Bxg4#
- 1...Rg5
- 2.Rxg5#
- 1...Rh6
- 2.Rg5#
- 1...Rh8
- 2.Rg5#
- 1...Be7
- 2.Scxe7#
- 1...Sa3
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Rh7!
- 1...Rxf4
- 1.Bb2?
- 1...Rxf4
- 2.Se3#
- 1...Bxg7
- 2.Sce7#
- 1...e3
- 2.Bd3#
- 1...Rh1
- 2.Bg4#
- 1...Rh2
- 2.Bg4#
- 1...Rh3
- 2.Bg4#
- 1...Rg4
- 2.Bxg4#
- 1...Rg5
- 2.Rxg5#
- 1...Rh6
- 2.Rg5#
- 1...Rh8
- 2.Rg5#
- 1...Be7
- 2.Scxe7#
- 1...Sa3
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Rh7!
- 1...Rxf4
- 1.Be5?
- threat
- 2.Se3#
- 1...Bxg7
- 2.Sde7#
- 2.Sce7#
- 1...e3
- 2.Bd3#
- 1...Rh3
- 2.Bg4#
- 1...dxe5!
- threat
- 1.Rg8?
- 1...Rxf4
- 2.Se3#
- 1...Sxc3
- 2.Sd4#
- 1...Bg7
- 2.Sce7#
- 1...e3
- 2.Bd3#
- 1...Rh1
- 2.Bg4#
- 1...Rh2
- 2.Bg4#
- 1...Rh3
- 2.Bg4#
- 1...Rg4
- 2.Bxg4#
- 1...Rg5
- 2.Rxg5#
- 1...Rh6
- 2.Rg5#
- 1...Rh8
- 2.Rg5#
- 1...Bh6
- 2.Sce7#
- 1...Be7
- 2.Scxe7#
- 1...Sa3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Rh7+!
- 1...Rxf4
- 1.Bd1?
- Keys
- 1.f7!
- 1...Rxf4
- 2.Se3#
- 1...Bxg7
- 2.Sce7#
- 1...Sxc3
- 2.Sd4#
- 1...e3
- 2.Bd3#
- 1...Rh7
- 2.Rg5#
- 1...Rh1
- 2.Bg4#
- 1...Rh2
- 2.Bg4#
- 1...Rh3
- 2.Bg4#
- 1...Rg4
- 2.Bxg4#
- 1...Rg5
- 2.Rxg5#
- 1...Rh6
- 2.Rg5#
- 1...Rh8
- 2.Rg5#
- 1...Be7
- 2.Scxe7#
- 1...Sa3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Rxf4
- 1.f7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::B(A)
- R(b);SBLOCK,XP(C)::S(D)
- R(b);N_GUARD::B(A),XR(b)
- R(e);N_GUARD::R1(H),XR(e)
- R(e);N_GUARD::R1(H)
- B(g);N_GUARD::S(E),XB(g)
- B(g);N_GUARD,XR(H)::S(E)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD,XB(B)::S(E)
- S(c);N_GUARD::S(E),XS(c)
- P(a);OGATEB::B(A)
- Tries
- Try
- B(A);
- Vars
- R(b);SBLOCK,XP(C)::S(D)
- B(g);N_GUARD,XR(H)::S(E)
- S(c);N_GUARD,XB(B)::S(E)
- P(a);OGATEB::B(A)
- R(b);N_GUARD::B(A)
- R(b);N_GUARD::B(A),XR(b)
- R(e);N_GUARD::R1(H),XR(e)
- R(e);N_GUARD::R1(H)
- B(g);N_GUARD::S(E),XB(g)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- Refutation
- R(e);P_PINR(H)
- Try
- B(A);XS(c)
- Threat
- S(E)
- Vars
- R(b);SBLOCK,XP(C)::S(D)
- R(e);N_GUARD::R1(H),XR(e)
- P(a);OGATEB::B(A)
- Refutation
- B(g);XR(H)
- Try
- B(B);
- Vars
- R(b);SBLOCK,XP(C)::S(D)
- B(g);N_GUARD,XR(H)::S(E)
- P(a);OGATEB::B(A)
- R(b);N_GUARD::B(A)
- R(b);N_GUARD::B(A),XR(b)
- R(e);N_GUARD::R1(H),XR(e)
- R(e);N_GUARD::R1(H)
- B(g);N_GUARD::S(E),XB(g)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- Refutation
- R(e);P_PINR(H)
- Try
- B(B);
- Vars
- R(b);SBLOCK,XP(C)::S(D)
- B(g);N_GUARD,XR(H)::S(E)
- P(a);OGATEB::B(A)
- R(b);N_GUARD::B(A)
- R(b);N_GUARD::B(A),XR(b)
- R(e);N_GUARD::R1(H),XR(e)
- R(e);N_GUARD::R1(H)
- B(g);N_GUARD::S(E),XB(g)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- Refutation
- R(e);P_PINR(H)
- Try
- B(B);
- Threat
- S(D)
- Vars
- P(a);OGATEB::B(A)
- R(b);N_GUARD::B(A)
- Refutation
- P(f);XB(B)
- Try
- R(H);
- Vars
- R(b);SBLOCK,XP(C)::S(D)
- S(c);N_GUARD,XB(B)::S(E)
- B(g);N_GUARD::S(E)
- P(a);OGATEB::B(A)
- R(b);N_GUARD::B(A)
- R(b);N_GUARD::B(A),XR(b)
- R(e);N_GUARD::R1(H),XR(e)
- R(e);N_GUARD::R1(H)
- B(g);N_GUARD::S(E),XB(g)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- Refutation
- R(e);CHECK
- Try
- Actual
- P(F);
- Vars
- R(b);SBLOCK,XP(C)::S(D)
- B(g);N_GUARD,XR(H)::S(E)
- S(c);N_GUARD,XB(B)::S(E)
- P(a);OGATEB::B(A)
- R(e);N_GUARD::R1(H)
- R(b);N_GUARD::B(A)
- R(b);N_GUARD::B(A),XR(b)
- R(e);N_GUARD::R1(H),XR(e)
- B(g);N_GUARD::S(E),XB(g)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(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).