MESON Chess Problem Database
Problem Display
PID: 168355 (qb3Q1B/rp1B2K1/p1NN2p1/P2k2p1/2pP1p1p/3P1n2/2r1R3/1b6 w - - 0 1)
Petite, Efren
1st Prize, Problemas, 1982
#2
10 + 14
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.dxc4#
- 1...Rb2
- 2.dxc4#
- 1...Rd2
- 2.dxc4#
- 1...Rxe2
- 2.dxc4#
- 1...Bxd6
- 2.Qf7#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sxd4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Ra2
- Tries
- 1.Kxg6?
- threat
- 2.Sb4#
- 1...Se5+
- 2.Rxe5#
- 1...Bxd6
- 2.Qf7#
- 1...Sxd4
- 2.Re5#
- 1...bxc6
- 2.Be6#
- 1...Rb2!
- threat
- 1.Kh7?
- threat
- 2.Sb4#
- 1...Bxd6
- 2.Qf7#
- 1...Sxd4
- 2.Re5#
- 1...Rb2
- 2.dxc4#
- 1...Se5
- 2.Rxe5#
- 1...bxc6!
- threat
- 1.Kg8?
- threat
- 2.Sb4#
- 1...Sxd4
- 2.Re5#
- 1...bxc6
- 2.Be6#
- 1...Rb2
- 2.dxc4#
- 1...Se5
- 2.Rxe5#
- 1...Bxd6!
- threat
- 1.Se4?
- threat
- 2.Sf6#
- 2.Qc5#
- 2.Qf7#
- 2.Qg8#
- 1...Sxd4
- 2.Sf6#
- 2.Qc5#
- 1...cxd3
- 2.Qf7#
- 2.Qg8#
- 1...bxc6
- 2.Qc5#
- 1...Bd6
- 2.Sf6#
- 2.Qxd6#
- 2.Qf7#
- 1...Bc7
- 2.Sf6#
- 2.Qc5#
- 2.Qf7#
- 1...Se5
- 2.Sf6#
- 2.Qc5#
- 1...b6
- 2.Sf6#
- 2.Qf7#
- 2.Qg8#
- 1...Be5+!
- threat
- 1.Sb5?
- threat
- 2.Sb4#
- 2.Se7#
- 2.Qc5#
- 2.Qf7#
- 2.Qg8#
- 1...Rxe2
- 2.Sc3#
- 2.Sb4#
- 2.Qc5#
- 1...Sxd4
- 2.Sb4#
- 1...cxd3
- 2.Qf7#
- 2.Qg8#
- 1...axb5
- 2.Qc5#
- 1...bxc6
- 2.Qc5#
- 2.Qf7#
- 2.Qg8#
- 1...Rb2
- 2.Sc3#
- 2.Se7#
- 2.Qc5#
- 2.Qf7#
- 2.Qg8#
- 1...Bd6
- 2.Qxd6#
- 2.Qf7#
- 1...Bc7
- 2.Sxc7#
- 2.Sb4#
- 2.Se7#
- 2.Qc5#
- 2.Qf7#
- 1...Se5
- 2.Sb4#
- 2.Se7#
- 2.Qc5#
- 1...b6
- 2.Sb4#
- 2.Se7#
- 2.Qf7#
- 2.Qg8#
- 1...Be5+!
- threat
- 1.Sf5?
- threat
- 2.Sb4#
- 2.Sce7#
- 2.Qc5#
- 2.Qf7#
- 2.Qg8#
- 1...Rxe2
- 2.Sb4#
- 2.Qc5#
- 1...Sxd4
- 2.Sb4#
- 1...cxd3
- 2.Qf7#
- 2.Qg8#
- 1...gxf5
- 2.Qc5#
- 1...bxc6
- 2.Qc5#
- 2.Qf7#
- 2.Qg8#
- 1...Rb2
- 2.Sce7#
- 2.Qc5#
- 2.Qf7#
- 2.Qg8#
- 1...Bd6
- 2.Qxd6#
- 2.Qf7#
- 1...Bc7
- 2.Sb4#
- 2.Sce7#
- 2.Qc5#
- 2.Qf7#
- 1...Se5
- 2.Sb4#
- 2.Sce7#
- 2.Qc5#
- 1...b6
- 2.Sb4#
- 2.Sce7#
- 2.Qf7#
- 2.Qg8#
- 1...Be5+!
- threat
- 1.Sxb7?
- threat
- 2.Qc5#
- 2.Qf7#
- 2.Qg8#
- 1...Qxb7
- 2.Qc5#
- 1...Rxe2
- 2.Qc5#
- 1...Rxb7
- 2.Qc5#
- 1...Sxd4
- 2.Sb4#
- 2.Se7#
- 2.Qc5#
- 1...cxd3
- 2.Qf7#
- 2.Qg8#
- 1...Bd6
- 2.Qxd6#
- 2.Qf7#
- 1...Bc7
- 2.Qc5#
- 2.Qf7#
- 1...Se5
- 2.Qc5#
- 1...Be5+!
- threat
- 1.Sc8?
- threat
- 2.Sb6#
- 2.Qc5#
- 2.Qf7#
- 2.Qg8#
- 1...Rxe2
- 2.Sb6#
- 2.Qc5#
- 1...Sxd4
- 2.Sb4#
- 2.Sb6#
- 1...cxd3
- 2.Sb6#
- 2.Qf7#
- 2.Qg8#
- 1...bxc6
- 2.Qc5#
- 1...Rb2
- 2.Qc5#
- 2.Qf7#
- 2.Qg8#
- 1...Bd6
- 2.Sb6#
- 2.Qxd6#
- 2.Qf7#
- 2.Qg8#
- 1...Bc7
- 2.Qc5#
- 2.Qf7#
- 2.Qg8#
- 1...Se5
- 2.Sb6#
- 2.Qc5#
- 1...b6
- 2.Sxb6#
- 2.Qf7#
- 2.Qg8#
- 1...Be5+!
- threat
- 1.Se8?
- threat
- 2.Sf6#
- 2.Qc5#
- 2.Qf7#
- 2.Qg8#
- 1...Rxe2
- 2.Sf6#
- 2.Qc5#
- 1...Sxd4
- 2.Sb4#
- 2.Sf6#
- 1...cxd3
- 2.Qf7#
- 2.Qg8#
- 1...bxc6
- 2.Qc5#
- 1...Bd6
- 2.Sf6#
- 2.Qxd6#
- 2.Qf7#
- 2.Qg8#
- 1...Se5
- 2.Sf6#
- 2.Qc5#
- 1...b6
- 2.Sf6#
- 2.Qf7#
- 2.Qg8#
- 1...Be5+!
- threat
- 1.Re4?
- threat
- 2.Sb4#
- 1...Bxd6
- 2.Qf7#
- 1...Sxd4
- 2.Re5#
- 1...Rb2
- 2.dxc4#
- 1...bxc6!
- threat
- 1.Qe7?
- threat
- 2.Qe6#
- 1...Rxe2
- 2.dxc4#
- 1...Sxd4
- 2.Re5#
- 2.Qe5#
- 1...bxc6!
- threat
- 1.Qf6?
- threat
- 2.Sb4#
- 2.Se7#
- 2.Qe6#
- 1...Rxe2
- 2.Sb4#
- 2.dxc4#
- 1...Bxd6
- 2.Qe6#
- 2.Qf7#
- 1...Sxd4
- 2.Re5#
- 2.Qxd4#
- 2.Qe5#
- 1...Rb2
- 2.Se7#
- 2.Qe6#
- 2.dxc4#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 2.Qe6#
- 1...bxc6!
- threat
- 1.Kxg6?
- Keys
- 1.Kh6!
- threat
- 2.Sb4#
- 1...Bxd6
- 2.Qf7#
- 1...Sxd4
- 2.Re5#
- 1...bxc6
- 2.Be6#
- 1...Rb2
- 2.dxc4#
- 1...Se5
- 2.Rxe5#
- threat
- 1.Kh6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(b);N_GUARD::P(B),XP(d)
- R(b);N_GUARD,XR(A)::P(B),XP(d)
- B(n);SBLOCK,XS(F)::QAB(I)
- S(c);N_GUARD::R1(A)
- S(c);N_GUARD,XP(C)::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- Tries
- Try
- K(H);P-FLIGHT,XP(j)
- Threat
- S(E)
- Vars
- S(c);CHECK,N_GUARD::R1(A),XS(c)
- B(n);SBLOCK,XS(F)::QAB(I)
- S(c);N_GUARD,XP(C)::R1(A)
- P(l);SBLOCK,XS(E)::B(G)
- Refutation
- R(b);P_PINP(B)
- Try
- K(H);P-FLIGHT
- Threat
- S(E)
- Vars
- B(n);SBLOCK,XS(F)::QAB(I)
- S(c);N_GUARD,XP(C)::R1(A)
- R(b);N_GUARD::P(B),XP(d)
- S(c);N_GUARD::R1(A),XS(c)
- Refutation
- P(l);P_PINB(G),XS(E)
- Try
- K(H);P-FLIGHT
- Threat
- S(E)
- Vars
- S(c);N_GUARD,XP(C)::R1(A)
- P(l);SBLOCK,XS(E)::B(G)
- R(b);N_GUARD::P(B),XP(d)
- S(c);N_GUARD::R1(A),XS(c)
- Refutation
- B(n);P_PINQ(I),XS(F)
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- P(l);P_PINB(G),XS(E)::QAR1(I)
- Refutation
- B(n);CHECK
- Try
- S(F);
- Threat
- DUALS(5)
- Vars
- S(c);XP(C)::S(E)
- P(i);XS(F)::QAR1(I)
- Refutation
- B(n);CHECK
- Try
- S(F);
- Threat
- DUALS(5)
- Vars
- S(c);XP(C)::S(E)
- P(j);XS(F)::QAR1(I)
- Refutation
- B(n);CHECK
- Try
- S(F);XP(l)
- Threat
- DUALS(3)
- Vars
- Q(m);P_PINB(G),XS(F)::QAR1(I)
- R(b);XR(A)::QAR1(I)
- R(k);P_PINB(G),XS(F)::QAR1(I)
- S(c);::QAR1(I)
- Refutation
- B(n);CHECK
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- P(l);P_PINB(G),XS(E)::QAR1(I)
- Refutation
- B(n);CHECK
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- P(l);P_PINB(G),XS(E)::QAR1(I)
- Refutation
- B(n);CHECK
- Try
- R(A);
- Threat
- S(E)
- Vars
- B(n);SBLOCK,XS(F)::QAB(I)
- S(c);N_GUARD,XP(C)::R1(A)
- R(b);N_GUARD::P(B),XP(d)
- Refutation
- P(l);P_PINB(G),XS(E)
- Try
- Q(I);
- Threat
- QAB1(I)
- Vars
- R(b);N_GUARD,XR(A)::P(B),XP(d)
- Refutation
- P(l);XS(E)
- Try
- Q(I);
- Threat
- DUALS(3)
- Refutation
- P(l);P_PINB(G),XS(E)
- Try
- Actual
- K(H);S_FLIGHT
- Threat
- S(E)
- Vars
- B(n);SBLOCK,XS(F)::QAB(I)
- S(c);N_GUARD,XP(C)::R1(A)
- P(l);SBLOCK,XS(E)::B(G)
- R(b);N_GUARD::P(B),XP(d)
- S(c);N_GUARD::R1(A),XS(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).