MESON Chess Problem Database
Problem Display
PID: 7519 (B6b/rn1R3K/pprp4/2Nk1P2/1pNP4/3Q4/1P1Pp3/3n2B1 w - - 0 1)
Buglos, Janos
1st Prize, The Problemist, 1990
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Rxc5
- 2.Rxd6#
- 1...Rc8
- 2.Rxd6#
- 1...Bxd4
- 2.Qxd4#
- 1...Be5
- 2.dxe5#
- 1...Sxb2
- 2.Se3#
- 1...Sf2
- 2.Se3#
- 1...Sc3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Sxb6#
- 1...Sxc5
- 2.Sxb6#
- 1...Sd8
- 2.Sxb6#
- 1...Rxc5
- Tries
- 1.Sa3?
- threat
- 2.Qc4#
- 2.Qe4#
- 2.Qb3#
- 2.Qf3#
- 1...Rxc5
- 2.Qf3#
- 1...Bxd4
- 2.Qxd4#
- 1...Sxb2
- 2.Qe4#
- 2.Qf3#
- 1...bxa3
- 2.Qb3#
- 1...bxc5
- 2.Qf3#
- 1...Rc7
- 2.Qe4#
- 2.Qf3#
- 1...Rc8
- 2.Qe4#
- 2.Qf3#
- 1...e1Q
- 2.Qc4#
- 2.Qb3#
- 1...e1S
- 2.Qc4#
- 2.Qe4#
- 2.Qb3#
- 1...e1R
- 2.Qc4#
- 2.Qb3#
- 1...Sf2
- 2.Qc4#
- 1...Sc3
- 2.Qc4#
- 1...Se3
- 2.Qe4#
- 1...Sa5
- 2.Qe4#
- 2.Qf3#
- 1...b3
- 2.Qc4#
- 2.Qe4#
- 2.Qxb3#
- 2.Qf3#
- 1...b5
- 2.Qe4#
- 2.Qb3#
- 2.Qf3#
- 1...Sxc5!
- threat
- 1.Sa5?
- threat
- 2.Qc4#
- 2.Qe4#
- 2.Qb3#
- 2.Qf3#
- 1...Rxc5
- 2.Qf3#
- 1...Bxd4
- 2.Qxd4#
- 1...Sxb2
- 2.Qe4#
- 2.Qf3#
- 1...Sxc5
- 2.Bxc6#
- 1...bxa5
- 2.Qb3#
- 1...bxc5
- 2.Qf3#
- 1...e1Q
- 2.Qc4#
- 2.Qb3#
- 1...e1S
- 2.Qc4#
- 2.Qe4#
- 2.Qb3#
- 1...e1R
- 2.Qc4#
- 2.Qb3#
- 1...Sf2
- 2.Qc4#
- 1...Sc3
- 2.Qc4#
- 1...Se3
- 2.Qe4#
- 1...b3
- 2.Qc4#
- 2.Qe4#
- 2.Qxb3#
- 2.Qf3#
- 1...b5
- 2.Qe4#
- 2.Qb3#
- 2.Qf3#
- 1...Sxa5!
- threat
- 1.Sxd6?
- threat
- 2.Qc4#
- 2.Qe4#
- 2.Qb3#
- 2.Qf3#
- 1...Rxc5
- 2.Qe4#
- 2.Qf3#
- 1...Bxd4
- 2.Qxd4#
- 1...Sxb2
- 2.Qe4#
- 2.Qf3#
- 1...Sxc5
- 2.Qc4#
- 1...Sxd6
- 2.Qb3#
- 1...bxc5
- 2.Qc4#
- 2.Qe4#
- 2.Qf3#
- 1...Rc7
- 2.Qe4#
- 2.Qf3#
- 1...Rc8
- 2.Qe4#
- 2.Qf3#
- 1...e1Q
- 2.Qc4#
- 2.Qb3#
- 1...e1S
- 2.Qc4#
- 2.Qe4#
- 2.Qb3#
- 1...e1R
- 2.Qc4#
- 2.Qb3#
- 1...Sf2
- 2.Qc4#
- 1...Sc3
- 2.Qc4#
- 1...Se3
- 2.Qe4#
- 1...Sa5
- 2.Qe4#
- 2.Qf3#
- 1...b3
- 2.Qc4#
- 2.Qe4#
- 2.Qxb3#
- 2.Qf3#
- 1...b5
- 2.Qe4#
- 2.Qb3#
- 2.Qf3#
- 1...Rxd6!
- threat
- 1.Sxa6?
- threat
- 2.Sxb4#
- 1...Rxc4
- 2.Qf3#
- 1...Bxd4
- 2.Qxd4#
- 1...b3
- 2.Sb4#
- 1...Rxa6!
- threat
- 1.Se6?
- threat
- 2.Sf4#
- 1...Rxc4
- 2.Qf3#
- 1...Bxd4
- 2.Qxd4#
- 1...Rc5
- 2.Rxd6#
- 1...Rc8
- 2.Rxd6#
- 1...Be5
- 2.dxe5#
- 1...Rc7!
- threat
- 1.Bxb7?
- threat
- 2.Sxb6#
- 2.Rxd6#
- 1...Bxd4
- 2.Qxd4#
- 1...bxc5
- 2.Sb6#
- 2.Rxd6#
- 1...Be5
- 2.Sxb6#
- 2.dxe5#
- 1...b5
- 2.Sb6#
- 2.Rxd6#
- 1...Rxb7!
- threat
- 1.Sa3?
- Keys
- 1.Se5!
- threat
- 2.Qc4#
- 2.Qe4#
- 2.Qb3#
- 2.Qf3#
- 1...Rxc5
- 2.Qf3#
- 1...Bxe5
- 2.Qb3#
- 1...Sxb2
- 2.Qe4#
- 2.Qf3#
- 1...Sxc5
- 2.Bxc6#
- 1...bxc5
- 2.Qf3#
- 1...e1Q
- 2.Qc4#
- 2.Qb3#
- 1...e1S
- 2.Qc4#
- 2.Qe4#
- 2.Qb3#
- 1...e1R
- 2.Qc4#
- 2.Qb3#
- 1...Sf2
- 2.Qc4#
- 1...Sc3
- 2.Qc4#
- 1...Se3
- 2.Qe4#
- 1...Sa5
- 2.Qe4#
- 2.Qf3#
- 1...b3
- 2.Qc4#
- 2.Qe4#
- 2.Qxb3#
- 2.Qf3#
- 1...b5
- 2.Qe4#
- 2.Qb3#
- 2.Qf3#
- threat
- 1.Se5!
There are these versions: 87454
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 6
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(g);N_GUARD,P_SPINS(j),XS(G)::R1(I),XP(h)
- R(g);N_GUARD,P_SPINS(j)::R1(I),XP(h)
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(D),XB(k)
- B(k);OGATE::QAR(D)+P(F),XB(k)
- S(a);N_GUARD,XP(B)::S(E)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(j);P_PINR(I),P_SPINR(g)::S(E),XP(f)
- S(j);P_PINR(I),P_SPINR(g),XS(G)::S(E),XP(f)
- Tries
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- R(g);P_SPINS(j),XS(G)::QAB(D)
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(D),XB(k)
- P(c);XS(E)::QAB(D)
- P(f);XS(G)::QAB(D)
- S(a);::QAB1(D)
- Refutation
- S(j);P_PINR(I),P_SPINR(g),XS(G)
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- R(g);P_SPINS(j),XS(G)::QAB(D)
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(D),XB(k)
- S(j);OGATE,P_PINR(I),P_SPINR(g),XS(G)::B(K),XR(g)
- P(f);XS(E)::QAB(D)
- P(f);XS(G)::QAB(D)
- S(a);::QAB1(D)
- Refutation
- S(j);P_PINR(I),P_SPINR(g),XS(E)
- Try
- S(E);XP(h)
- Threat
- DUALS(4)
- Vars
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(D),XB(k)
- S(j);P_PINR(I),P_SPINR(g),XS(G)::QAB1(D)
- S(j);P_PINR(I),P_SPINR(g),P_SPINS(j),XS(E)::QAB(D)
- S(a);::QAB1(D)
- Refutation
- R(g);P_SPINR(g),P_SPINS(j),XS(E)
- Try
- S(G);XP(e)
- Threat
- S(G),XP(c)
- Vars
- R(g);P_SPINS(j),SBLOCK,XS(E)::QAB(D)
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(D),XB(k)
- P(c);::S(G)
- Refutation
- R(i);XS(G)
- Try
- S(G);
- Threat
- S(G)
- Vars
- R(g);P_SPINS(j),SBLOCK,XS(E)::QAB(D)
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(D),XB(k)
- R(g);N_GUARD,P_SPINS(j)::R1(I),XP(h)
- B(k);OGATE::QAR(D)+P(F),XB(k)
- Refutation
- R(g);P_PINR(I),P_SPINS(j)
- Try
- B(K);P_PINR(g),XS(j)
- Threat
- DUALS(2)
- Vars
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(D),XB(k)
- Refutation
- R(i);N_SPINR(g),P_PINR(I),XB(K)
- Try
- Actual
- S(E);
- Threat
- DUALS(4)
- Vars
- R(g);P_SPINS(j),XS(G)::QAB(D)
- B(k);XS(E)::QAB(D)
- S(j);OGATE,P_PINR(I),P_SPINR(g),XS(G)::B(K),XR(g)
- P(f);XS(G)::QAB(D)
- S(a);::QAB1(D)
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).