MESON Chess Problem Database
Problem Display
PID: 252993 (3KR3/3B4/3kN3/1npp1n2/7p/3b4/1Q6/8 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
Probleemblad, 1983
#2
5 + 7
SOLUTION
- SOUND
- Sets
- 1...Sa3
- 2.Qb8#
- 1...Sc3
- 2.Qb8#
- 1...Sbd4
- 2.Qb8#
- 1...Sa7
- 2.Qb8#
- 1...Se3
- 2.Qh2#
- 1...Sfd4
- 2.Qh2#
- 1...Sh6
- 2.Qh2#
- 1...Se7
- 2.Qh2#
- 1...Sg7
- 2.Qh2#
- 1...Sa3
- Tries
- 1.Sf4?
- threat
- 2.Re6#
- 2.Qe5#
- 2.Qf6#
- 1...c4
- 2.Qb4#
- 1...Sc3
- 2.Re6#
- 2.Qb6#
- 2.Qb8#
- 1...Sbd4
- 2.Qb8#
- 1...Sc7
- 2.Qe5#
- 2.Qb6#
- 1...Se7
- 2.Qf6#
- 1...Sg7
- 2.Qe5#
- 1...d4
- 2.Re6#
- 1...Sfd4!
- threat
- 1.Sg5?
- threat
- 2.Sf7#
- 2.Re6#
- 2.Qe5#
- 2.Qf6#
- 1...c4
- 2.Qb4#
- 1...Sc3
- 2.Sf7#
- 2.Re6#
- 2.Qb6#
- 2.Qb8#
- 1...Sbd4
- 2.Sf7#
- 2.Qb8#
- 1...Sc7
- 2.Sf7#
- 2.Qe5#
- 2.Qb6#
- 1...Sfd4
- 2.Sf7#
- 2.Qh2#
- 1...Sh6
- 2.Re6#
- 2.Qe5#
- 2.Qf6#
- 2.Qh2#
- 1...Se7
- 2.Sf7#
- 2.Qf6#
- 2.Qh2#
- 1...Sg7
- 2.Sf7#
- 2.Qe5#
- 2.Qh2#
- 1...d4!
- threat
- 1.Sc7?
- threat
- 2.Re6#
- 2.Qe5#
- 2.Qf6#
- 1...Sxc7
- 2.Qe5#
- 2.Qb6#
- 1...c4
- 2.Qb4#
- 1...Sc3
- 2.Re6#
- 2.Qb6#
- 1...Sfd4
- 2.Qh2#
- 1...Se7
- 2.Qf6#
- 2.Qh2#
- 1...Sg7
- 2.Qe5#
- 2.Qh2#
- 1...d4
- 2.Re6#
- 1...Sbd4!
- threat
- 1.Sg7?
- threat
- 2.Re6#
- 2.Qe5#
- 2.Qf6#
- 1...Sxg7
- 2.Qe5#
- 2.Qh2#
- 1...c4
- 2.Qb4#
- 1...Sc3
- 2.Re6#
- 2.Qb6#
- 2.Qb8#
- 1...Sbd4
- 2.Qb8#
- 1...Sc7
- 2.Qe5#
- 2.Qb6#
- 1...Sfd4
- 2.Qh2#
- 1...Se7
- 2.Qf6#
- 2.Qh2#
- 1...d4!
- threat
- 1.Sf8?
- threat
- 2.Re6#
- 2.Qe5#
- 2.Qf6#
- 1...c4
- 2.Qb4#
- 1...Sc3
- 2.Re6#
- 2.Qb6#
- 2.Qb8#
- 1...Sbd4
- 2.Qb8#
- 1...Sc7
- 2.Qe5#
- 2.Qb6#
- 1...Sfd4
- 2.Qh2#
- 1...Se7
- 2.Qf6#
- 2.Qh2#
- 1...Sg7
- 2.Qe5#
- 2.Qh2#
- 1...d4!
- threat
- 1.Qf6?
- threat
- 2.Sd4#
- 2.Sf4#
- 2.Sg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sf8#
- 1...d4
- 2.Sf4#
- 2.Sc7#
- 1...Sbd4
- 2.Sxd4#
- 1...Sc7
- 2.Sxc7#
- 1...Sfd4
- 2.Sxd4#
- 2.Qf4#
- 1...Sg7
- 2.Sxg7#
- 2.Qf4#
- 1...c4!
- threat
- 1.Sf4?
- Keys
- 1.Sd4!
- threat
- 2.Re6#
- 1...Sbxd4
- 2.Qb8#
- 1...Sfxd4
- 2.Qh2#
- 1...cxd4
- 2.Qb4#
- 1...Se7
- 2.Qh2#
- 1...c4
- 2.Qb4#
- 1...Sc7
- 2.Qb6#
- 1...Sg7
- 2.Qh2#
- threat
- 1.Sd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- S(c);OGATE::QAB(A)
- S(f);N_GUARD::QAB(A)
- Tries
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- P(d);OGATEB::QAB(A)
- S(c);OGATE::QAB(A)
- S(f);::QAR2(A)
- S(f);::QAB1(A)
- P(e);::R1(E)
- Refutation
- S(f);
- Try
- S(B);
- Threat
- DUALS(4)
- Vars
- P(d);OGATEB::QAB(A)
- Refutation
- P(e);
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- P(d);OGATEB::QAB(A)
- S(f);N_GUARD::QAB(A)
- P(e);::R1(E)
- Refutation
- S(c);
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- P(d);OGATEB::QAB(A)
- S(c);OGATE::QAB(A)
- S(f);N_GUARD::QAB(A)
- Refutation
- P(e);
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- P(d);OGATEB::QAB(A)
- S(c);OGATE::QAB(A)
- S(f);N_GUARD::QAB(A)
- Refutation
- P(e);
- Try
- Q(A);
- Threat
- DUALS(6)
- Vars
- S(c);::QAR(A)+S(B),XS(c)
- Refutation
- P(d);
- Try
- Actual
- S(B);
- Threat
- R1(E)
- Vars
- S(c);OGATE,XS(B)::QAB(A)
- S(f);N_GUARD,XS(B)::QAB(A)
- P(d);OGATEB,XS(B)::QAB(A)
- S(f);N_GUARD::QAB(A)
- P(d);OGATEB::QAB(A)
- S(c);OGATE::QAR2(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).