MESON Chess Problem Database
Problem Display
PID: 151810 (3b3K/1npQ1b2/2NpPk1n/5Pp1/8/4N1B1/8/8 w - - 0 1)
Promislo, Charles
Good Companions (December), 1914
#2
7 + 8
SOLUTION
- SOUND
- Sets
- 1...Bh5
- 2.Qg7#
- 1...Bxe6
- 2.Qxe6#
- 2.Qg7#
- 1...Bg6
- 2.Qg7#
- 1...Be8
- 2.Qg7#
- 1...Bg8
- 2.Qg7#
- 1...Be7
- 2.Qxe7#
- 1...Sg4
- 2.Qxf7#
- 1...Sxf5
- 2.Qxf7#
- 1...Sg8
- 2.Qxf7#
- 1...Sa5
- 2.Qxd8#
- 1...Sc5
- 2.Qxd8#
- 1...g4
- 2.Bh4#
- 1...d5
- 2.Be5#
- 1...Bh5
- Tries
- 1.Sg4+?
- 1...Sxg4
- 2.Qxf7#
- 1...Kxf5!
- 1...Sxg4
- 1.Be1?
- threat
- 2.Bc3#
- 1...Sxf5
- 2.Qxf7#
- 1...g4
- 2.Bh4#
- 1...Sg4
- 2.Qxf7#
- 1...d5!
- threat
- 1.Bf2?
- 1...Bxe6
- 2.Qxe6#
- 2.Qg7#
- 1...Sxf5
- 2.Qxf7#
- 1...g4
- 2.Bh4#
- 1...Bh5
- 2.Qg7#
- 1...Bg6
- 2.Qg7#
- 1...Be8
- 2.Qg7#
- 1...Bg8
- 2.Qg7#
- 1...Be7
- 2.Qxe7#
- 1...Sg4
- 2.Qxf7#
- 1...Sg8
- 2.Qxf7#
- 1...Sa5
- 2.Qxd8#
- 1...Sc5
- 2.Qxd8#
- 1...d5!
- 1...Bxe6
- 1.Bh2?
- 1...Bxe6
- 2.Qxe6#
- 2.Qg7#
- 1...Sxf5
- 2.Qxf7#
- 1...Bh5
- 2.Qg7#
- 1...Bg6
- 2.Qg7#
- 1...Be8
- 2.Qg7#
- 1...Bg8
- 2.Qg7#
- 1...Be7
- 2.Qxe7#
- 1...Sg4
- 2.Qxf7#
- 1...Sg8
- 2.Qxf7#
- 1...Sa5
- 2.Qxd8#
- 1...Sc5
- 2.Qxd8#
- 1...d5
- 2.Be5#
- 1...g4!
- 1...Bxe6
- 1.Qxc7?
- 1...Bxe6
- 2.Qg7#
- 1...Sxf5
- 2.Qxf7#
- 1...g4
- 2.Bh4#
- 1...Bh5
- 2.Qg7#
- 1...Bg6
- 2.Qg7#
- 1...Be8
- 2.Qg7#
- 1...Bg8
- 2.Qg7#
- 1...Be7
- 2.Qxe7#
- 1...Sg4
- 2.Qxf7#
- 1...Sg8
- 2.Qxf7#
- 1...Sa5
- 2.Qxd8#
- 1...Sc5
- 2.Qxd8#
- 1...d5
- 2.Be5#
- 2.Qe5#
- 1...Bxc7!
- 1...Bxe6
- 1.exf7?
- threat
- 2.Sd5#
- 2.Qe6#
- 1...Sxf5
- 2.Qxf5#
- 1...Be7
- 2.Qe6#
- 2.Qxe7#
- 1...g4
- 2.Bh4#
- 1...Sc5
- 2.Sd5#
- 1...d5
- 2.Sxd5#
- 2.Be5#
- 2.Qe6#
- 1...Sxf7+!
- threat
- 1.Sg4+?
- Keys
- 1.e7!
- 1...Bxe7
- 2.Qxe7#
- 1...Sxf5
- 2.Qxf5#
- 1...Ba2
- 2.e8S#
- 1...Bb3
- 2.e8S#
- 1...Bc4
- 2.e8S#
- 1...Bd5
- 2.e8S#
- 1...Bh5
- 2.Qe6#
- 1...Be6
- 2.Qxe6#
- 2.e8S#
- 1...Bg6
- 2.Qe6#
- 1...Be8
- 2.Qe6#
- 1...Bg8
- 2.e8S#
- 1...g4
- 2.Bh4#
- 1...Sg4
- 2.Sxg4#
- 1...Sg8
- 2.Sg4#
- 1...Sa5
- 2.exd8Q#
- 2.exd8B#
- 1...Sc5
- 2.exd8Q#
- 2.exd8B#
- 1...d5
- 2.Be5#
- 1...Bxe7
- 1.e7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- B(g);OGATE::QAB1(F)
- B(h);N_GUARD::QAB1(F),XB(h)
- S(d);N_GUARD::QAR1(F),XB(g)
- S(d);N_GUARD,XP(C)::QAR1(F),XB(g)
- S(e);N_GUARD::QAB(F),XB(h)
- P(a);OGATEB::B(B)
- P(b);N_GUARD::B(B)
- Tries
- Try
- S(A);CHECK
- Vars
- S(d);XS(A)::QAR1(F),XB(g)
- Refutation
- K(c);P-FLIGHT,XP(C)
- Try
- B(B);
- Threat
- B(B)
- Vars
- S(d);N_GUARD,XP(C)::QAR1(F),XB(g)
- P(a);OGATEB::B(B)
- S(d);N_GUARD::QAR1(F),XB(g)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- S(d);N_GUARD,XP(C)::QAR1(F),XB(g)
- P(a);OGATEB::B(B)
- B(g);OGATE::QAB1(F)
- B(h);N_GUARD::QAB1(F),XB(h)
- S(d);N_GUARD::QAR1(F),XB(g)
- S(e);N_GUARD::QAB(F),XB(h)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- S(d);N_GUARD,XP(C)::QAR1(F),XB(g)
- B(g);OGATE::QAB1(F)
- B(h);N_GUARD::QAB1(F),XB(h)
- S(d);N_GUARD::QAR1(F),XB(g)
- S(e);N_GUARD::QAB(F),XB(h)
- P(b);N_GUARD::B(B)
- Refutation
- P(a);
- Try
- Q(F);XP(f)
- Vars
- B(g);OGATE,XP(E)::QAB1(F)
- S(d);N_GUARD,XP(C)::QAR1(F),XB(g)
- P(a);OGATEB::B(B)
- B(g);OGATE::QAB1(F)
- B(h);N_GUARD::QAB1(F),XB(h)
- S(d);N_GUARD::QAR1(F),XB(g)
- S(e);N_GUARD::QAB(F),XB(h)
- Refutation
- B(h);XQ(F)
- Try
- P(E);XB(g)
- Threat
- DUALS(2)
- Vars
- S(d);OGATE,XP(C)::QAR1(F),XS(d)
- P(a);OGATEB::B(B)
- S(e);::S(A)
- Refutation
- S(d);CHECK,XP(E)
- Try
- Actual
- P(E);
- Vars
- B(h);OGATE,XP(E)::QAB1(F),XB(h)
- S(d);OGATE,XP(C)::QAR1(F),XS(d)
- B(g);N_GUARD::P=S
- B(g);N_GUARD::QAR1(F)
- P(a);OGATEB::B(B)
- S(d);N_GUARD::S(A),XS(d)
- S(d);N_GUARD::S(A)
- S(e);N_GUARD::PXB(h)=Q
- P(b);N_GUARD::B(B)
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).