MESON Chess Problem Database
Problem Display
PID: 108725 (6Q1/1p5p/4p3/1KPk4/4N2q/8/1B4P1/8 w - - 0 1)
Krushner, M
La Presse, 1896
#2
6 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sf6#
- 1...Qg3
- 2.Sf6#
- 1...Qf6
- 2.Sxf6#
- 1...Qh1
- 2.Sf6#
- 1...Qh2
- 2.Sf6#
- 1...Qh3
- 2.Sf6#
- 1...Qxe4
- 2.Qd8#
- 1...Qg4
- 2.Sf6#
- 1...Qh5
- 2.Sf6#
- 1...b6
- 2.Qa8#
- 1...Qe1
- Tries
- 1.Qf7?
- threat
- 2.Qxb7#
- 1...Kxe4
- 2.Qf3#
- 1...b6
- 2.Qb7#
- 1...Qe7!
- threat
- 1.Qg7?
- threat
- 2.Sc3#
- 2.Qd4#
- 2.Qe5#
- 2.Qxb7#
- 1...Qxe4
- 2.Qxb7#
- 2.Qd7#
- 1...e5
- 2.Qxe5#
- 1...Qf2
- 2.Sc3#
- 2.Qe5#
- 2.Qxb7#
- 1...Qe1
- 2.Sf6#
- 2.Qd4#
- 2.Qe5#
- 2.Qxb7#
- 1...Qg3
- 2.Sf6#
- 2.Qd4#
- 2.Qxb7#
- 1...Qg5
- 2.Sc3#
- 2.Qd4#
- 2.Qxb7#
- 1...Qf6
- 2.Sxf6#
- 2.Qxb7#
- 1...Qe7
- 2.Sc3#
- 2.Qd4#
- 2.Qe5#
- 1...Qh2
- 2.Sc3#
- 2.Sf6#
- 2.Qd4#
- 2.Qxb7#
- 1...Qh3
- 2.Sf6#
- 2.Qd4#
- 2.Qe5#
- 2.Qxb7#
- 1...Qf4
- 2.Sc3#
- 2.Qd4#
- 2.Qxb7#
- 1...Qh5
- 2.Sc3#
- 2.Sf6#
- 2.Qd4#
- 2.Qxb7#
- 1...b6
- 2.Sc3#
- 2.Qd4#
- 2.Qe5#
- 2.Qb7#
- 1...Kxe4!
- threat
- 1.Qb8?
- threat
- 2.Qe5#
- 2.Qxb7#
- 1...Qxe4
- 2.Qd6#
- 2.Qxb7#
- 2.Qd8#
- 1...e5
- 2.Qxe5#
- 1...Qg3
- 2.Sf6#
- 2.Qxb7#
- 1...Qg5
- 2.Qxb7#
- 1...Qf6
- 2.Sxf6#
- 2.Qxb7#
- 1...Qe7
- 2.Qe5#
- 1...Qh2
- 2.Sf6#
- 2.Qxb7#
- 1...Qf4
- 2.Qxb7#
- 1...Qh5
- 2.Sf6#
- 2.Qxb7#
- 1...b6
- 2.Qe5#
- 2.Qb7#
- 2.Qa8#
- 1...Kxe4!
- threat
- 1.Qh8?
- threat
- 2.Sc3#
- 2.Qd4#
- 2.Qe5#
- 1...Qxe4
- 2.Qd8#
- 1...e5
- 2.Qxe5#
- 1...Qf2
- 2.Sc3#
- 2.Qe5#
- 1...Qe1
- 2.Sf6#
- 2.Qd4#
- 2.Qe5#
- 1...Qg3
- 2.Sf6#
- 2.Qd4#
- 1...Qg5
- 2.Sc3#
- 2.Qd4#
- 1...Qf6
- 2.Sxf6#
- 1...Qh2
- 2.Sc3#
- 2.Sf6#
- 2.Qd4#
- 1...Qh3
- 2.Sf6#
- 2.Qd4#
- 2.Qe5#
- 1...Qf4
- 2.Sc3#
- 2.Qd4#
- 1...Qh5
- 2.Sc3#
- 2.Sf6#
- 2.Qd4#
- 1...Kxe4!
- threat
- 1.Qf7?
- Keys
- 1.Qg3!
- threat
- 2.Qe5#
- 2.Qd3#
- 1...Kxe4
- 2.Qf3#
- 1...Qxg3
- 2.Sf6#
- 1...Qxe4
- 2.Qd6#
- 1...e5
- 2.Qxe5#
- 1...Qg5
- 2.Qd3#
- 1...Qf6
- 2.Sxf6#
- 1...Qh2
- 2.Sf6#
- 2.Qd3#
- 1...Qh3
- 2.Sf6#
- 2.Qe5#
- 1...Qf4
- 2.Qd3#
- 1...Qh5
- 2.Sf6#
- 2.Qd3#
- threat
- 1.Qg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- Q(a);N_GUARD::S(C)
- Q(a);N_GUARD::S(C),XQ(a)
- Q(a);N_GUARD,SBLOCK,XS(C)::QAR(F)
- P(d);OGATEB::QAB(F)
- Tries
- Try
- Q(F);
- Threat
- QAB(F),XP(d)
- Vars
- K(b);N_SPINP(c),OGATEB,S_FLIGHT,XS(C)::QAB1(F)
- P(d);::QAB(F)
- Refutation
- Q(a);
- Try
- Q(F);N_PINP(c)
- Threat
- DUALS(4)
- Vars
- P(c);::QAR1(F),XP(c)
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- Q(F);N_PINP(c)
- Threat
- DUALS(2)
- Vars
- P(c);::QAR1(F),XP(c)
- Q(a);::QAB(F),XP(d)
- Q(a);::QAR1(F)
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- Q(F);N_PINP(c)
- Threat
- DUALS(3)
- Vars
- Q(a);N_GUARD,SBLOCK,XS(C)::QAR(F)
- P(c);::QAR1(F),XP(c)
- Q(a);N_GUARD::S(C),XQ(a)
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- Actual
- Q(F);N_PINP(c)
- Threat
- DUALS(2)
- Vars
- K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(F)
- Q(a);N_GUARD,XQ(F)::S(C)
- Q(a);SBLOCK,XS(C)::QAR1(F)
- P(c);::QAR1(F),XP(c)
- Q(a);::QAR2(F)
- Q(a);N_GUARD::S(C),XQ(a)
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).