MESON Chess Problem Database
Problem Display
PID: 79883 (1b4b1/prP5/5Np1/nnB2Nq1/RPk1p3/p1p3Q1/2B5/KR6 w - - 0 1)
Kovacevic, Marjan
1st Prize, Einat-Comay-50 JT, 2008
#2
10 + 12
| 273 | Mat Plus | 2008 |
| 56 | The Problemist | 2008 |
| 721 | Variantim | 2008 |
| 145 | StrateGems | 2009 |
| 56 | The Problemist | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Qe3
- 2.Sxe3#
- 1...Qh4
- 2.Se3#
- 1...Qxf6
- 2.Se3#
- 1...Qg4
- 2.Se3#
- 1...Qh5
- 2.Se3#
- 1...Sb3+
- 2.Bxb3#
- 1...Sc6
- 2.Bb3#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sxc7
- 2.Sd6#
- 1...Qe3
- Tries
- 1.Bd4?
- threat
- 2.bxa5#
- 1...Sb3+
- 2.Bxb3#
- 1...Sxd4
- 2.Sd6#
- 1...Sxc7
- 2.b5#
- 1...Sd6
- 2.b5#
- 1...Sc6
- 2.Bb3#
- 1...Qxf6!
- threat
- 1.Qf2?
- threat
- 2.Qf1#
- 2.Qe2#
- 2.bxa5#
- 1...Qxf6
- 2.Se3#
- 1...Qxf5
- 2.Qe2#
- 2.bxa5#
- 1...Sxc7
- 2.Sd6#
- 2.Qf1#
- 2.Qe2#
- 2.b5#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 2.Qf1#
- 2.Qe2#
- 2.b5#
- 1...Qe3
- 2.Sxe3#
- 1...Qc1
- 2.Qe2#
- 2.bxa5#
- 1...Qd2
- 2.bxa5#
- 1...Qf4
- 2.Qe2#
- 2.bxa5#
- 1...Qg1
- 2.Se3#
- 2.Qe2#
- 2.bxa5#
- 1...Qg2
- 2.Se3#
- 2.bxa5#
- 1...Qg3
- 2.bxa5#
- 1...Qg4
- 2.Se3#
- 2.bxa5#
- 1...Qh5
- 2.Se3#
- 2.bxa5#
- 1...Sc6
- 2.Qf1#
- 2.Qe2#
- 1...e3
- 2.Qe2#
- 1...Sb3+!
- threat
- 1.Qxc3+?
- 1...Sxc3
- 2.Sd6#
- 1...Kxc3!
- 1...Sxc3
- 1.Qe3?
- threat
- 2.Qe2#
- 2.bxa5#
- 1...Sb3+
- 2.Bxb3#
- 1...Qxe3
- 2.Sxe3#
- 1...Sxc7
- 2.Sd6#
- 2.Qe2#
- 2.b5#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 2.Qe2#
- 2.b5#
- 1...Qg2
- 2.bxa5#
- 1...Qg3
- 2.bxa5#
- 1...Qg4
- 2.bxa5#
- 1...Qh5
- 2.bxa5#
- 1...Sc6
- 2.Bb3#
- 2.Qe2#
- 1...Qxf6!
- threat
- 1.Qxg5?
- threat
- 2.Se3#
- 1...Sxc7
- 2.Sd6#
- 1...gxf5
- 2.Qxg8#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...e3
- 2.Sxe3#
- 1...Sb3+!
- threat
- 1.c8Q?
- threat
- 2.bxa5#
- 1...Sb3+
- 2.Bxb3#
- 1...Qxf6
- 2.Se3#
- 1...Sd4
- 2.b5#
- 1...Sd6
- 2.b5#
- 1...Sc7
- 2.Sd6#
- 1...Bc7
- 2.Qxg8#
- 1...Sc6
- 2.Bb3#
- 1...Rc7!
- threat
- 1.Bd4?
- Keys
- 1.Qd6!
- threat
- 2.bxa5#
- 1...Sb3+
- 2.Bxb3#
- 1...Sxd6
- 2.Sxd6#
- 1...Sxc7
- 2.b5#
- 1...Sd4
- 2.b5#
- 1...Sc6
- 2.Bb3#
- threat
- 1.Qd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(g);N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD::S(H)
- Q(g);N_GUARD,XS(I)::S(H)
- S(e);CHECK,N_GUARD::B(C),XS(e)
- S(e);N_GUARD::B(C)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- S(f);N_GUARD,XP(J)::S(H)
- Tries
- Try
- B(G);
- Threat
- R(E)+P(F),XS(e)
- Vars
- S(e);CHECK,N_GUARD::B(C),XS(e)
- S(f);N_GUARD,SBLOCK,XB(G)::S(H)
- S(f);OGATE,XP(J)::R(E)+P(F)
- S(f);OGATE::R(E)+P(F)
- S(e);N_GUARD::B(C)
- Refutation
- Q(g);XS(I)
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- Q(g);N_GUARD,XS(I)::S(H)
- S(f);N_GUARD::S(H)
- Q(g);N_GUARD::S(H),XQ(g)
- Q(g);::R(E)+P(F),XS(e)
- P(d);::QAB(D)
- Refutation
- S(e);CHECK
- Try
- Q(D);CHECK,XP(b)
- Vars
- S(f);SBLOCK,XQ(D)::S(H)
- Refutation
- K(c);P-FLIGHT,XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- S(e);CHECK,N_GUARD::B(C),XS(e)
- Q(g);XQ(D)::S(H),XQ(g)
- S(f);N_GUARD::S(H)
- Q(g);::R(E)+P(F),XS(e)
- Refutation
- Q(g);XS(I)
- Try
- Q(D);XQ(g)
- Threat
- S(H)
- Vars
- S(f);N_GUARD,XP(J)::S(H)
- P(h);OGATE,XS(H)::QAB(D),XB(l)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- P(d);::S(H),XP(d)
- Refutation
- S(e);CHECK
- Try
- P(J);
- Threat
- R(E)+P(F),XS(e)
- Vars
- S(e);CHECK,N_GUARD::B(C),XS(e)
- Q(g);N_GUARD,XS(I)::S(H)
- S(f);OGATE::R(E)+P(F)
- S(f);N_GUARD,S_CUTB(k)::S(H)
- B(k);S_CUTR(j)::QAB(J),XB(l)
- S(e);N_GUARD::B(C)
- Refutation
- R(j);
- Try
- Actual
- Q(D);
- Threat
- R(E)+P(F),XS(e)
- Vars
- S(e);CHECK,N_GUARD::B(C),XS(e)
- S(f);XQ(D)::S(H),XS(f)
- S(f);OGATE,XP(J)::R(E)+P(F)
- S(f);OGATE::R(E)+P(F)
- S(e);N_GUARD::B(C)
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).