MESON Chess Problem Database
Problem Display
PID: 80889 (3Rb3/4NP1K/Bb1NR3/r3nQ2/1P1kPn2/3p3p/3Ppr1B/7q w - - 0 1)
Vukovic, Vladan
3rd Comm., Mat Plus, 1998-1999
#2
12 + 11
| 5929 | Mat Plus Special Issue | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Qxe4
- 2.Qxe4#
- 1...Ra1
- 2.Qxe5#
- 1...Ra2
- 2.Qxe5#
- 1...Ra3
- 2.Qxe5#
- 1...Ra4
- 2.Qxe5#
- 1...Rxa6
- 2.Qxe5#
- 1...Bc5
- 2.Qxe5#
- 1...Bb5
- 2.Qxe5#
- 1...Sd5
- 2.Bxe5#
- 2.Qxe5#
- 1...Sh5
- 2.Qxf2#
- 1...Sxe6
- 2.Qxf2#
- 1...Sfg6
- 2.Qxf2#
- 1...Sc4
- 2.Sb5#
- 1...Sd7
- 2.Sc6#
- 1...Qxe4
- Tries
- 1.Sxe8+?
- 1...Rd5
- 2.Qxe5#
- 1...Sd5
- 2.Bxe5#
- 2.Qxe5#
- 1...Sd7
- 2.Sc6#
- 1...Bxd8!
- 1...Rd5
- 1.Qxf4?
- threat
- 2.Sdf5#
- 2.Sef5#
- 2.Qe3#
- 2.Qxf2#
- 1...Qxe4+
- 2.Sdf5#
- 2.Qxe4#
- 1...Qxh2
- 2.Sdf5#
- 2.Sef5#
- 2.Qe3#
- 1...Rxh2
- 2.Sdf5#
- 2.Sef5#
- 2.Qe3#
- 1...Rxa6
- 2.Sef5#
- 2.Qe3#
- 2.Qxe5#
- 2.Qxf2#
- 1...Sxf7
- 2.Sdf5#
- 2.Qe3#
- 2.Qxf2#
- 1...e1Q
- 2.Sdf5#
- 2.Sef5#
- 1...e1B
- 2.Sdf5#
- 2.Sef5#
- 2.Qe3#
- 1...e1R
- 2.Sdf5#
- 2.Sef5#
- 1...Qg2
- 2.Sdf5#
- 2.Sef5#
- 2.Qe3#
- 1...Qf3
- 2.Sdf5#
- 2.Sef5#
- 1...Qe1
- 2.Sdf5#
- 2.Sef5#
- 2.Qe3#
- 1...Qf1
- 2.Sdf5#
- 2.Sef5#
- 2.Qe3#
- 1...Qg1
- 2.Sdf5#
- 2.Sef5#
- 2.Qe3#
- 1...Rf1
- 2.Sdf5#
- 2.Sef5#
- 2.Qe3#
- 1...Rg2
- 2.Sdf5#
- 2.Sef5#
- 2.Qe3#
- 1...Rf3
- 2.Sdf5#
- 2.Sef5#
- 1...Rb5
- 2.Sef5#
- 2.Qe3#
- 2.Qxf2#
- 1...Bb5
- 2.Sef5#
- 2.Qe3#
- 2.Qxe5#
- 2.Qxf2#
- 1...Sf3
- 2.Sdf5#
- 2.Qe3#
- 2.e5#
- 1...Sc4
- 2.Sb5#
- 2.Sdf5#
- 1...Sg4
- 2.Sdf5#
- 1...Sc6
- 2.Sdf5#
- 2.Qe3#
- 2.Qxf2#
- 1...Sg6
- 2.Sdf5#
- 2.Qe3#
- 2.Qxf2#
- 1...Sd7
- 2.Sc6#
- 2.Qe3#
- 2.Qxf2#
- 1...Rxf4!
- threat
- 1.Qg5?
- threat
- 2.Sef5#
- 1...Qxe4+
- 2.Sdf5#
- 1...Sxe6
- 2.Qe3#
- 1...Sxf7
- 2.Sdf5#
- 1...Sd5
- 2.Bxe5#
- 2.Qxe5#
- 1...Sh5
- 2.Qe3#
- 1...Sfg6
- 2.Qe3#
- 1...Sf3
- 2.Sdf5#
- 1...Sc4
- 2.Sb5#
- 2.Sdf5#
- 1...Sg4
- 2.Sdf5#
- 1...Sc6
- 2.Sdf5#
- 1...Seg6
- 2.Sdf5#
- 1...Sd7
- 2.Sc6#
- 1...Sg2!
- threat
- 1.Qf6?
- threat
- 2.Sef5#
- 1...Qxe4+
- 2.Sdf5#
- 1...Sxe6
- 2.Qxf2#
- 1...Sd5
- 2.Bxe5#
- 2.Qxe5#
- 1...Sh5
- 2.Qxf2#
- 1...Sg6
- 2.Qxf2#
- 1...Sg2!
- threat
- 1.Sxe8+?
- Keys
- 1.Qg4!
- threat
- 2.Sef5#
- 1...Qxe4+
- 2.Sdf5#
- 1...Sxe6
- 2.Sdf5#
- 1...Sxg4
- 2.Sdf5#
- 1...Sxf7
- 2.Sdf5#
- 1...Sg2
- 2.Sdf5#
- 1...Sd5
- 2.Bxe5#
- 1...Sh5
- 2.Sdf5#
- 1...Sfg6
- 2.Sdf5#
- 1...Sf3
- 2.Sdf5#
- 1...Sc4
- 2.Sb5#
- 2.Sdf5#
- 1...Sc6
- 2.Sdf5#
- 1...Seg6
- 2.Sdf5#
- 1...Sd7
- 2.Sc6#
- threat
- 1.Qg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 7
- REMOVED MATES = 8
- Sets
- Q(a);OGATE,P_PINQ(E),XP(D)::QAR1(E),XQ(a)
- R(h);N_GUARD::QAB1(E),XS(i)
- R(h);N_GUARD,XB(F)::QAB1(E),XS(i)
- B(j);S_CUTR(h)::QAB1(E),XS(i)
- B(k);S_CUTR(h)::QAB1(E),XS(i)
- S(g);OGATE::QAB(E),XR(c)
- S(g);OGATE,XR(H)::QAB(E),XR(c)
- S(i);SBLOCK::R(L)+S(G),DCHECK
- S(i);N_GUARD,S_CUTB(k)::S(I)
- Tries
- Try
- S(G);CHECK,XB(k)
- Vars
- R(h);P_SPINR(h)::QAB1(E),XS(i)
- S(i);P_SPINS(i)::S(I)
- Refutation
- B(j);XR(L)
- Try
- Q(E);XS(g)
- Threat
- DUALS(4)
- Vars
- S(i);::R(L)+S(G),DCHECK
- Refutation
- R(c);XQ(E)
- Try
- Q(E);
- Threat
- S(I)
- Vars
- Q(a);CHECK,SBLOCK,XP(D)::R(L)+S(G),DCHECK
- S(g);OGATE,XR(H)::QAB1(E)
- S(i);XP(J)::R(L)+S(G),DCHECK
- S(g);OGATE::QAB1(E)
- S(i);::R(L)+S(G),DCHECK
- S(i);N_GUARD,S_CUTB(k)::S(I)
- Refutation
- S(g);
- Try
- Q(E);P_PINS(i)
- Threat
- S(I)
- Vars
- Q(a);CHECK,SBLOCK,XP(D)::R(L)+S(G),DCHECK
- S(g);OGATE,XR(H)::QAB(E),XR(c)
- S(g);OGATE::QAB(E),XR(c)
- Refutation
- S(g);
- Try
- Actual
- Q(E);
- Threat
- S(I)
- Vars
- Q(a);CHECK,SBLOCK,XP(D)::R(L)+S(G),DCHECK
- S(g);XR(H)::R(L)+S(G),DCHECK
- S(i);XQ(E)::R(L)+S(G),DCHECK
- S(i);XP(J)::R(L)+S(G),DCHECK
- S(g);::R(L)+S(G),DCHECK
- S(g);OGATE::B(B),XS(i)
- S(i);::R(L)+S(G),DCHECK
- S(i);N_GUARD,S_CUTB(k)::S(I)
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).