MESON Chess Problem Database
Problem Display
PID: 48160 (4N2B/N1Pp3P/3pb1BR/2rk1p2/1RpP2P1/Qp3P2/1P6/1K6 w - - 0 1)
Gvozdjak, Peter
1st Prize, The Problemist, 1987/II
#2
14 + 8
| 3297 | FIDE Album (1986-1988) | 1995 |
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 1...Rxc7
- 2.Sxc7#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...c3
- 2.Sf6#
- 1...fxg4
- 2.Be4#
- 1...f4
- 2.Be4#
- 1...Ra5
- Tries
- 1.Ka1?
- 1...Rxc7
- 2.Sxc7#
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Be4#
- 1...Rc6!
- 1...Rxc7
- 1.Kc1?
- 1...Rxc7
- 2.Sxc7#
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Be4#
- 1...Rc6!
- 1...Rxc7
- 1.Bf7?
- 1...Rxc7
- 2.Sxc7#
- 1...Bxf7
- 2.Rxd6#
- 1...fxg4
- 2.Rh5#
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Rh5#
- 1...Rc6!
- 1...Rxc7
- 1.Be5?
- threat
- 2.Sf6#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...dxe5!
- threat
- 1.Bg7?
- 1...Rxc7
- 2.Sxc7#
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Be4#
- 1...Rc6!
- 1...Rxc7
- 1.Ra4?
- 1...Rxc7
- 2.Sxc7#
- 2.Qxd6#
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Rxa5#
- 2.Qxd6#
- 1...Rb5
- 2.Qxd6#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Be4#
- 1...Rc6!
- 1...Rxc7
- 1.Rh1?
- 1...Rxc7
- 2.Sxc7#
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Be4#
- 1...Rc6!
- 1...Rxc7
- 1.Rh2?
- 1...Rxc7
- 2.Sxc7#
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Be4#
- 1...Rc6!
- 1...Rxc7
- 1.Rh3?
- 1...Rxc7
- 2.Sxc7#
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Be4#
- 1...Rc6!
- 1...Rxc7
- 1.Rh4?
- 1...Rxc7
- 2.Sxc7#
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Be4#
- 1...Rc6!
- 1...Rxc7
- 1.Rh5?
- 1...Rxc7
- 2.Sxc7#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 1...c3
- 2.Sf6#
- 1...Rc6!
- 1...Rxc7
- 1.Qa1?
- 1...Rxc7
- 2.Sxc7#
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Be4#
- 1...Rc6!
- 1...Rxc7
- 1.Qxb3?
- 1...Rxc7
- 2.Sxc7#
- 1...cxb3
- 2.Sf6#
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Qxc4#
- 1...Rb5
- 2.Rxb5#
- 2.Qxc4#
- 1...f4
- 2.Be4#
- 1...Rc6!
- 1...Rxc7
- 1.Qa4?
- 1...Rxc7
- 2.Sxc7#
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 2.Qxb5#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Be4#
- 1...Rc6!
- 1...Rxc7
- 1.Qa5?
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Rb5
- 2.Rxb5#
- 2.Qxb5#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Be4#
- 1...Rxa5!
- 1...fxg4
- 1.g5?
- 1...Rxc7
- 2.Sxc7#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Ra5
- 2.Qxa5#
- 1...Rb5
- 2.Rxb5#
- 1...c3
- 2.Sf6#
- 1...f4
- 2.Be4#
- 1...Rc6!
- 1...Rxc7
- 1.c8S?
- threat
- 2.Sb6#
- 2.Se7#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...Rc6
- 2.Se7#
- 1...Rb5
- 2.Se7#
- 2.Sc7#
- 2.Rxb5#
- 1...Rxc8!
- threat
- 1.Ka1?
- Keys
- 1.Rb5!
- 1...Rxb5
- 2.Qxd6#
- 1...fxg4
- 2.Be4#
- 1...Bf7
- 2.Bxf7#
- 1...Bg8
- 2.hxg8Q#
- 2.hxg8B#
- 1...c3
- 2.Qxb3#
- 1...f4
- 2.Be4#
- 1...Rxb5
- 1.Rb5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- R(c);OGATEB::QAR(C),XR(c)
- R(c);OGATEB::R(E),XR(c)
- R(c);XP(K)::S(M),XR(c)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- P(b);::S(M)
- P(e);OGATE,XP(G)::B(H)
- P(e);OGATE::B(H)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- R(c);XP(K)::S(M),XR(c)
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);OGATEB,P_PINQ(C)::QAR(C),XR(c)
- R(c);OGATEB::R(E),XR(c)
- P(b);::S(M)
- P(e);OGATE::B(H)
- Refutation
- R(c);
- Try
- K(A);P-FLIGHT
- Vars
- R(c);XP(K)::S(M),XR(c)
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);OGATEB::QAR(C),XR(c)
- R(c);OGATEB::R(E),XR(c)
- P(b);::S(M)
- P(e);OGATE::B(H)
- Refutation
- R(c);
- Try
- B(H);P_PINB(g)
- Vars
- R(c);XP(K)::S(M),XR(c)
- B(g);N_SPINB(g),OGATE,XB(H)::R1(I),XP(f)
- P(e);OGATEB,XP(G)::R(I)
- R(c);OGATEB::QAR(C),XR(c)
- R(c);OGATEB::R(E),XR(c)
- P(b);::S(M)
- P(e);OGATEB::R(I)
- Refutation
- R(c);
- Try
- B(N);
- Threat
- S(M)
- Vars
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- Refutation
- P(f);XB(N)
- Try
- B(N);
- Vars
- R(c);XP(K)::S(M),XR(c)
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);OGATEB::QAR(C),XR(c)
- R(c);OGATEB::R(E),XR(c)
- P(b);::S(M)
- P(e);OGATE::B(H)
- Refutation
- R(c);
- Try
- R(E);
- Vars
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);OGATE::QAR1(C),XP(f)
- P(b);::S(M)
- P(e);OGATE::B(H)
- Refutation
- R(c);
- Try
- R(I);
- Vars
- R(c);XP(K)::S(M),XR(c)
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);OGATEB::QAR(C),XR(c)
- R(c);OGATEB::R(E),XR(c)
- P(b);::S(M)
- P(e);OGATE::B(H)
- Refutation
- R(c);
- Try
- R(I);
- Vars
- R(c);XP(K)::S(M),XR(c)
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);OGATEB::QAR(C),XR(c)
- R(c);OGATEB::R(E),XR(c)
- P(b);::S(M)
- P(e);OGATE::B(H)
- Refutation
- R(c);
- Try
- R(I);
- Vars
- R(c);XP(K)::S(M),XR(c)
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);OGATEB::QAR(C),XR(c)
- R(c);OGATEB::R(E),XR(c)
- P(b);::S(M)
- P(e);OGATE::B(H)
- Refutation
- R(c);
- Try
- R(I);
- Vars
- R(c);XP(K)::S(M),XR(c)
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);OGATEB::QAR(C),XR(c)
- R(c);OGATEB::R(E),XR(c)
- P(b);::S(M)
- P(e);OGATE::B(H)
- Refutation
- R(c);
- Try
- R(I);P_PINP(e)
- Vars
- R(c);XP(K)::S(M),XR(c)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);OGATEB::QAR(C),XR(c)
- R(c);OGATEB::R(E),XR(c)
- P(b);::S(M)
- Refutation
- R(c);
- Try
- Q(C);
- Vars
- R(c);XP(K)::S(M),XR(c)
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);OGATEB::QAR(C),XR(c)
- R(c);OGATEB::R(E),XR(c)
- P(b);::S(M)
- P(e);OGATE::B(H)
- Refutation
- R(c);
- Try
- Q(C);P_PINP(b),XP(a)
- Vars
- R(c);XP(K)::S(M),XR(c)
- P(b);N_SPINP(b),XQ(C)::S(M)
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);N_GUARD::QAB1(C),XP(b)
- P(e);OGATE::B(H)
- Refutation
- R(c);
- Try
- Q(C);
- Vars
- R(c);XP(K)::S(M),XR(c)
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);OGATEB::QAR(C),XR(c)
- P(b);::S(M)
- P(e);OGATE::B(H)
- Refutation
- R(c);
- Try
- Q(C);P_PINR(c)
- Vars
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- P(b);::S(M)
- P(e);OGATE::B(H)
- Refutation
- R(c);N_SPINR(c),XQ(C)
- Try
- P(G);
- Vars
- R(c);XP(K)::S(M),XR(c)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);OGATEB::QAR(C),XR(c)
- R(c);OGATEB::R(E),XR(c)
- P(b);::S(M)
- P(e);OGATE::B(H)
- Refutation
- R(c);
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- R(c);::S(K)
- Refutation
- R(c);XS(K)
- Try
- Actual
- R(E);P_PINR(c)
- Vars
- R(c);N_SPINR(c),OGATE,XR(E)::QAR1(C),XP(f)
- P(e);OGATE,XP(G)::B(H)
- B(g);OGATEB::B(H),XB(g)
- B(g);OGATE::PXB(g)=Q
- P(b);OGATEB::QAB(C),XP(a)
- P(e);OGATE::B(H)
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).