MESON Chess Problem Database
Problem Display
PID: 98537 (K3N3/8/R1PPkPP1/1R4p1/2p1p3/2r4N/2r5/BQq5 w - - 0 1)
Petkov, Petko Andonov
Problemas, 1967
#2
11 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Sxg5#
- 1...Qa3
- 2.Sxg5#
- 1...Qxb1
- 2.Sxg5#
- 1...Qd1
- 2.Sxg5#
- 1...Qe1
- 2.Sxg5#
- 1...Qf1
- 2.Sxg5#
- 1...Qh1
- 2.Sxg5#
- 1...Ra2
- 2.Qxe4#
- 1...Rb2
- 2.Qxe4#
- 1...Rd2
- 2.Sxg5#
- 2.Qxe4#
- 1...Rf2
- 2.Qxe4#
- 1...Rg2
- 2.Qxe4#
- 1...Rh2
- 2.Qxe4#
- 1...Ra3
- 2.Re5#
- 1...Rb3
- 2.Re5#
- 1...Rd3
- 2.Re5#
- 1...Re3
- 2.Sxg5#
- 2.Re5#
- 1...Rf3
- 2.Re5#
- 1...Rg3
- 2.Re5#
- 1...Rxh3
- 2.Re5#
- 1...e3
- 2.Sxg5#
- 1...Qb2
- Tries
- 1.Bxc3?
- threat
- 2.Re5#
- 1...Rxc3
- 2.Qxe4#
- 1...Qf4!
- threat
- 1.Qxc1?
- threat
- 2.Sxg5#
- 1...Rxh3
- 2.Re5#
- 1...Rg3
- 2.Re5#
- 1...g4
- 2.Sf4#
- 2.Sg5#
- 1...Rg2!
- threat
- 1.c7?
- threat
- 2.c8Q#
- 2.c8B#
- 1...Qxb1
- 2.c8Q#
- 2.c8B#
- 1...Rxh3
- 2.c8Q#
- 2.c8B#
- 1...Qd2
- 2.c8Q#
- 2.c8B#
- 1...Qb2
- 2.c8Q#
- 2.c8B#
- 1...Qa3
- 2.c8Q#
- 2.c8B#
- 1...Qe3
- 2.c8Q#
- 2.c8B#
- 1...Qf4
- 2.c8Q#
- 2.c8B#
- 1...Qd1
- 2.c8Q#
- 2.c8B#
- 1...Qe1
- 2.c8Q#
- 2.c8B#
- 1...Qf1
- 2.c8Q#
- 2.c8B#
- 1...Qg1
- 2.c8Q#
- 2.c8B#
- 1...Qh1
- 2.c8Q#
- 2.c8B#
- 1...Ra2
- 2.c8Q#
- 2.c8B#
- 1...Rb2
- 2.c8Q#
- 2.c8B#
- 1...Rd2
- 2.c8Q#
- 2.c8B#
- 1...Re2
- 2.c8Q#
- 2.c8B#
- 1...Rf2
- 2.c8Q#
- 2.c8B#
- 1...Rg2
- 2.c8Q#
- 2.c8B#
- 1...Rh2
- 2.c8Q#
- 2.c8B#
- 1...Ra3
- 2.c8Q#
- 2.c8B#
- 1...Rb3
- 2.c8Q#
- 2.c8B#
- 1...Rd3
- 2.c8Q#
- 2.c8B#
- 1...Re3
- 2.c8Q#
- 2.c8B#
- 1...Rf3
- 2.c8Q#
- 2.c8B#
- 1...Rg3
- 2.c8Q#
- 2.c8B#
- 1...e3
- 2.c8Q#
- 2.c8B#
- 1...g4
- 2.c8Q#
- 2.c8B#
- 1...Kd7!
- threat
- 1.d7?
- threat
- 2.d8S#
- 1...Qd1
- 2.Sxg5#
- 1...Rd2
- 2.Sxg5#
- 2.Qxe4#
- 1...Rd3
- 2.Re5#
- 1...Qd2!
- threat
- 1.f7?
- threat
- 2.f8S#
- 1...Qf1
- 2.Sxg5#
- 1...Rf2
- 2.Qxe4#
- 1...Rf3
- 2.Re5#
- 1...Qf4!
- threat
- 1.g7?
- threat
- 2.g8Q#
- 2.g8B#
- 1...Qxb1
- 2.Sxg5#
- 2.g8Q#
- 2.g8B#
- 1...Rxh3
- 2.g8Q#
- 2.g8B#
- 1...Qd2
- 2.g8Q#
- 2.g8B#
- 1...Qb2
- 2.Sxg5#
- 2.g8Q#
- 2.g8B#
- 1...Qa3
- 2.Sxg5#
- 2.g8Q#
- 2.g8B#
- 1...Qe3
- 2.g8Q#
- 2.g8B#
- 1...Qf4
- 2.g8Q#
- 2.g8B#
- 1...Qd1
- 2.Sxg5#
- 2.g8Q#
- 2.g8B#
- 1...Qe1
- 2.Sxg5#
- 2.g8Q#
- 2.g8B#
- 1...Qf1
- 2.Sxg5#
- 2.g8Q#
- 2.g8B#
- 1...Qg1
- 2.g8Q#
- 2.g8B#
- 1...Qh1
- 2.Sxg5#
- 2.g8Q#
- 2.g8B#
- 1...Ra2
- 2.g8Q#
- 2.g8B#
- 1...Rb2
- 2.g8Q#
- 2.g8B#
- 1...Rd2
- 2.Sxg5#
- 2.g8Q#
- 2.g8B#
- 1...Re2
- 2.g8Q#
- 2.g8B#
- 1...Rf2
- 2.g8Q#
- 2.g8B#
- 1...Rg2
- 2.g8Q#
- 2.g8B#
- 1...Rh2
- 2.g8Q#
- 2.g8B#
- 1...Ra3
- 2.g8Q#
- 2.g8B#
- 1...Rb3
- 2.g8Q#
- 2.g8B#
- 1...Rd3
- 2.g8Q#
- 2.g8B#
- 1...Re3
- 2.Sxg5#
- 2.g8Q#
- 2.g8B#
- 1...Rf3
- 2.g8Q#
- 2.g8B#
- 1...Rg3
- 2.g8Q#
- 2.g8B#
- 1...e3
- 2.Sxg5#
- 2.g8Q#
- 2.g8B#
- 1...g4
- 2.g8Q#
- 2.g8B#
- 1...Kf7!
- threat
- 1.Bxc3?
- Keys
- 1.Ra7!
- threat
- 2.Re7#
- 1...Qa3
- 2.Sxg5#
- 1...Ra2
- 2.Qxe4#
- 1...Ra3
- 2.Re5#
- threat
- 1.Ra7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 16
- Sets
- Q(a);N_GUARD::S(C),XP(f)
- Q(a);N_GUARD,P_PINR(E)::S(C),XP(f)
- Q(a);N_GUARD,XQ(B)::S(C),XP(f)
- R(b);OGATE,P_PINR(E)::QAR2(B),XP(e)
- R(b);OGATE::QAR2(B),XP(e)
- R(c);P_PINR(E)::R1(D)
- R(c);::R1(D)
- R(c);XS(C)::R1(D)
- P(e);S_CUTQ(a)::S(C),XP(f)
- Tries
- Try
- B(A);XR(c)
- Threat
- R1(D)
- Vars
- R(b);OGATE,XB(A)::QAR2(B),XP(e)
- Refutation
- Q(a);
- Try
- Q(B);XQ(a)
- Threat
- S(C),XP(f)
- Vars
- R(c);XS(C)::R1(D)
- R(c);::R1(D)
- Refutation
- R(b);
- Try
- P(F);
- Threat
- P=Q
- Vars
- Q(a);XQ(B)::P=Q
- R(c);XS(C)::P=Q
- Q(a);::P=Q
- Q(a);P_PINR(E)::P=Q
- R(b);P_PINR(E)::P=Q
- R(b);::P=Q
- R(c);P_PINR(E)::P=Q
- R(c);::P=Q
- P(e);::P=Q
- P(f);::P=Q
- Refutation
- K(g);S_FLIGHT
- Try
- P(G);
- Threat
- P=S
- Vars
- Q(a);N_GUARD::S(C),XP(f)
- R(c);::R1(D)
- Refutation
- Q(a);
- Try
- P(H);
- Threat
- P=S
- Vars
- Q(a);N_GUARD::S(C),XP(f)
- R(b);OGATE::QAR2(B),XP(e)
- R(c);::R1(D)
- Refutation
- Q(a);
- Try
- P(I);
- Threat
- P=Q
- Vars
- R(c);XS(C)::P=Q
- Q(a);::P=Q
- R(b);P_PINR(E)::P=Q
- R(b);::P=Q
- R(c);P_PINR(E)::P=Q
- R(c);::P=Q
- P(f);::P=Q
- Refutation
- K(g);S_FLIGHT
- Try
- Actual
- R(E);
- Threat
- R1(E)
- Vars
- Q(a);N_GUARD,P_PINR(E)::S(C),XP(f)
- R(b);OGATE,P_PINR(E)::QAR2(B),XP(e)
- R(c);P_PINR(E)::R1(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).