MESON Chess Problem Database
Problem Display
PID: 192605 (4nrR1/KB1pp3/1Q5N/3PkP2/p3N2R/8/q2B4/3n4 w - - 0 1)
Jankevics, Karlis
Sachova skladba, 2010
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Bc3#
- 1...Sf2
- 2.Bc3#
- 1...Sc3
- 2.Bxc3#
- 1...Se3
- 2.Bc3#
- 1...Sb2
- Tries
- 1.Sg3?
- threat
- 2.Sg4#
- 2.Bf4#
- 2.Re4#
- 1...Qxd5
- 2.Sg4#
- 2.Bf4#
- 1...Qxd2
- 2.Re4#
- 1...Rxf5
- 2.Sg4#
- 2.Re4#
- 1...Rxg8
- 2.Sf7#
- 2.Bf4#
- 2.Re4#
- 1...Sd6
- 2.Sg4#
- 2.Qd4#
- 1...d6
- 2.Sg4#
- 2.Qd4#
- 1...e6
- 2.Sg4#
- 1...Qb1
- 2.Sg4#
- 2.Bf4#
- 1...Qc2
- 2.Sg4#
- 2.Bf4#
- 1...Sf2
- 2.Bc3#
- 2.Bf4#
- 1...Sc3
- 2.Sg4#
- 2.Bxc3#
- 2.Bf4#
- 1...Se3
- 2.Bc3#
- 2.Re4#
- 1...Sf6
- 2.Bf4#
- 1...Qc4!
- threat
- 1.Sc5?
- threat
- 2.Sd3#
- 2.Sxd7#
- 2.Re4#
- 1...Qxd2
- 2.Sxd7#
- 2.Re4#
- 1...Sd6
- 2.Sxd7#
- 1...d6
- 2.Sd7#
- 1...e6
- 2.Sxd7#
- 1...Qc4
- 2.Sxd7#
- 1...Qb1
- 2.Sxd7#
- 1...Qb3
- 2.Sxd7#
- 2.Re4#
- 1...Qc2
- 2.Sxd7#
- 1...Qa3
- 2.Sxd7#
- 2.Re4#
- 1...Sb2
- 2.Sxd7#
- 2.Bc3#
- 2.Re4#
- 1...Sf2
- 2.Sxd7#
- 2.Bc3#
- 1...Sc3
- 2.Sd3#
- 2.Sxd7#
- 2.Bxc3#
- 1...Sf6
- 2.Sd3#
- 1...Qxd5!
- threat
- 1.Sg5?
- threat
- 2.Sf3#
- 2.Bf4#
- 2.Re4#
- 1...Qxd5
- 2.Bf4#
- 1...Qxd2
- 2.Sf3#
- 2.Re4#
- 1...Rxf5
- 2.Sg4#
- 2.Re4#
- 1...Sd6
- 2.Qd4#
- 1...d6
- 2.Qd4#
- 1...Qc4
- 2.Sf3#
- 1...Qb1
- 2.Sf3#
- 2.Bf4#
- 1...Qb3
- 2.Bf4#
- 2.Re4#
- 1...Qc2
- 2.Sf3#
- 2.Bf4#
- 1...Qa3
- 2.Bf4#
- 2.Re4#
- 1...Sf2
- 2.Sf3#
- 2.Bc3#
- 2.Bf4#
- 1...Sc3
- 2.Sf3#
- 2.Bxc3#
- 2.Bf4#
- 1...Se3
- 2.Sf3#
- 2.Bc3#
- 2.Re4#
- 1...Sf6
- 2.Sf3#
- 2.Bf4#
- 1...e6!
- threat
- 1.Sg4+?
- 1...Kxf5
- 2.Sg3#
- 2.Qg6#
- 1...Kxe4!
- 1...Kxf5
- 1.Sf7+?
- 1...Kxf5
- 2.Sg3#
- 2.Rf4#
- 2.Rg5#
- 2.Qg6#
- 1...Rxf7!
- 1...Kxf5
- 1.Qb2+?
- 1...Sxb2
- 2.Bc3#
- 1...Sc3
- 2.Bxc3#
- 2.Qxc3#
- 1...Qxb2!
- 1...Sxb2
- 1.Sg3?
- Keys
- 1.Sd6!
- threat
- 2.Sg4#
- 1...Kf6
- 2.Sg4#
- 1...Qxd2
- 2.Sc4#
- 1...Rxg8
- 2.Sdf7#
- 1...Sxd6
- 2.Qd4#
- 1...exd6
- 2.Qd4#
- 1...Qc4
- 2.Sxc4#
- 1...Sf2
- 2.Bc3#
- 1...Se3
- 2.Bc3#
- 1...Sf6
- 2.Bf4#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 2
- Sets
- S(a);N_GUARD::B(A)
- S(a);N_GUARD::B(A),XS(a)
- Tries
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- Q(b);XB(A)::R1(C)
- P(f);::S(G)
- S(g);::B(A)
- Refutation
- Q(b);
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- S(g);::S(B),XP(e)
- P(e);::S(B)
- P(f);::S(B),XP(e)
- Q(b);::S(B),XP(e)
- S(g);::S(B)
- Refutation
- Q(b);XP(D)
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- Q(b);XP(D)::B(A)
- S(g);SBLOCK::QAB1(F)
- P(e);SBLOCK::QAB1(F)
- Q(b);::S(B)
- Refutation
- P(f);
- Try
- S(G);CHECK
- Refutation
- K(d);P-FLIGHT,XS(B)
- Try
- S(G);CHECK
- Refutation
- R(h);XS(G)
- Try
- Q(F);CHECK
- Vars
- S(a);N_GUARD,XQ(F)::B(A)
- Refutation
- Q(b);XQ(F)
- Try
- Actual
- S(B);
- Threat
- S(G)
- Vars
- K(d);S_FLIGHT::S(G)
- Q(b);N_GUARD,XB(A)::S(B)
- R(h);N_GUARD,XR(J)::S(B)
- S(g);SBLOCK,XS(B)::QAB1(F)
- P(f);SBLOCK,XS(B)::QAB1(F)
- Q(b);N_GUARD::S(B),XQ(b)
- S(a);N_GUARD::B(A)
- S(g);SBLOCK::B(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).