MESON Chess Problem Database
Problem Display
PID: 206483 (4b3/2K1k1N1/4P2P/4PQ2/4n2N/8/8/8 w - - 0 1)
Utkin, MG
Kommuna, 1925
#2
7 + 3
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ba4
- 2.Sg6#
- 2.Qf7#
- 1...Bb5
- 2.Sg6#
- 2.Qf7#
- 1...Bc6
- 2.Sg6#
- 2.Qf7#
- 1...Bg6
- 2.Sxg6#
- 1...Bd7
- 2.Sg6#
- 2.Qf7#
- 1...Bf7
- 2.Qxf7#
- 1...Sd2
- 2.Qf6#
- 1...Sf2
- 2.Qf6#
- 1...Sc3
- 2.Qf6#
- 1...Sg3
- 2.Qf6#
- 1...Sc5
- 2.Qf6#
- 1...Sg5
- 2.Qf6#
- 1...Sd6
- 2.Qf6#
- 2.exd6#
- 1...Sf6
- 2.Qxf6#
- 1...Ba4
- Tries
- 1.Qf3?
- 1...Bf7
- 2.Qxf7#
- 1...Sf6
- 2.Qa3#
- 2.Qxf6#
- 1...Ba4
- 2.Sg6#
- 2.Qf7#
- 1...Bb5
- 2.Sg6#
- 2.Qf7#
- 1...Bc6
- 2.Sg6#
- 2.Qf7#
- 1...Bg6
- 2.Sxg6#
- 1...Bd7
- 2.Sg6#
- 2.Qf7#
- 1...Sd2
- 2.Qa3#
- 2.Qf6#
- 1...Sf2
- 2.Qa3#
- 2.Qf6#
- 1...Sc3
- 2.Qf6#
- 1...Sg3
- 2.Qa3#
- 2.Qf6#
- 1...Sc5
- 2.Qf6#
- 1...Sg5
- 2.Qa3#
- 2.Qf6#
- 1...Sd6
- 2.Qf6#
- 2.exd6#
- 1...Bh5!
- 1...Bf7
- 1.Qf4?
- 1...Bf7
- 2.Qxf7#
- 1...Sf6
- 2.Qb4#
- 2.Qxf6#
- 1...Ba4
- 2.Sg6#
- 2.Qf7#
- 1...Bb5
- 2.Sg6#
- 2.Qf7#
- 1...Bc6
- 2.Sg6#
- 2.Qf7#
- 1...Bg6
- 2.Sxg6#
- 1...Bd7
- 2.Sg6#
- 2.Qf7#
- 1...Sd2
- 2.Qb4#
- 2.Qf6#
- 1...Sf2
- 2.Qb4#
- 2.Qf6#
- 1...Sc3
- 2.Qb4#
- 2.Qf6#
- 1...Sg3
- 2.Qb4#
- 2.Qf6#
- 1...Sc5
- 2.Qf6#
- 1...Sg5
- 2.Qb4#
- 2.Qf6#
- 1...Sd6
- 2.Qf6#
- 2.exd6#
- 1...Bh5!
- 1...Bf7
- 1.h7?
- 1...Bf7
- 2.Qxf7#
- 1...Sf6
- 2.Qxf6#
- 1...Ba4
- 2.Sg6#
- 2.Qf7#
- 1...Bb5
- 2.Sg6#
- 2.Qf7#
- 1...Bc6
- 2.Sg6#
- 2.Qf7#
- 1...Bg6
- 2.Sxg6#
- 1...Bd7
- 2.Sg6#
- 2.Qf7#
- 1...Sd2
- 2.Qf6#
- 1...Sf2
- 2.Qf6#
- 1...Sc3
- 2.Qf6#
- 1...Sg3
- 2.Qf6#
- 1...Sc5
- 2.Qf6#
- 1...Sg5
- 2.Qf6#
- 1...Sd6
- 2.Qf6#
- 2.exd6#
- 1...Bh5!
- 1...Bf7
- 1.Qf3?
- Keys
- 1.Qg6!
- threat
- 2.Qxe8#
- 1...Kf8
- 2.Qxe8#
- 1...Bxg6
- 2.Sxg6#
- 1...Ba4
- 2.Qf7#
- 1...Bb5
- 2.Qf7#
- 1...Bc6
- 2.Qf7#
- 1...Bd7
- 2.Qf7#
- 1...Bf7
- 2.Qxf7#
- 1...Sd6
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- threat
- 1.Qg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 6
- Sets
- B(c);N_GUARD::S(A),XB(c)
- B(c);N_GUARD::QAR1(C),XB(c)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- Tries
- Try
- Q(C);
- Vars
- B(c);N_GUARD::QAR1(C),XB(c)
- B(c);N_GUARD::S(A),XB(c)
- S(a);N_GUARD::QAB1(C)
- Refutation
- B(c);
- Try
- Q(C);
- Vars
- B(c);N_GUARD::QAR1(C),XB(c)
- B(c);N_GUARD::S(A),XB(c)
- S(a);N_GUARD::QAB1(C)
- Refutation
- B(c);
- Try
- P(E);
- Vars
- B(c);N_GUARD::QAR1(C),XB(c)
- S(a);N_GUARD::QAB1(C),XS(a)
- B(c);N_GUARD::S(A),XB(c)
- S(a);N_GUARD::QAB1(C)
- Refutation
- B(c);
- Try
- Actual
- Q(C);
- Threat
- QAR1(C),XB(c)
- Vars
- K(b);S_FLIGHT::QAR1(C),XB(c)
- B(c);XQ(C)::S(A),XB(c)
- B(c);N_GUARD::QAR1(C)
- B(c);N_GUARD::QAR1(C),XB(c)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(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).