MESON Chess Problem Database
Problem Display
PID: 134805 (n2B1N1K/n2P1R1p/3k4/2R4r/1PPNPPPb/7q/8/4r3 w - - 0 1)
Gafarov, Marsil
Source?, 1967
#2
12 + 8
| 23 | Die Schwalbe | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Rxd5#
- 1...Re5
- 2.fxe5#
- 1...Rf5
- 2.Sxf5#
- 1...Rg5
- 2.Be7#
- 2.Rf6#
- 1...Rh6
- 2.Sf5#
- 2.Rd5#
- 1...Bf2
- 2.Be7#
- 2.Rf6#
- 1...Bg3
- 2.Be7#
- 2.Rf6#
- 1...Bg5
- 2.Sf5#
- 2.Rd5#
- 1...Bf6+
- 2.Rxf6#
- 1...Be7
- 2.Bxe7#
- 1...Sb5
- 2.Sxb5#
- 2.Rc6#
- 1...Sc6
- 2.Sb5#
- 2.Rxc6#
- 1...Sc8
- 2.Sb5#
- 2.Rc6#
- 2.dxc8S#
- 1...Sb6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...Rd5
- Tries
- 1.Bxh4?
- threat
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Qxg4
- 2.Be7#
- 1...Rxe4
- 2.d8Q#
- 2.d8R#
- 1...Rxh4
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Rxc5
- 2.d8Q#
- 2.d8R#
- 1...Sc6
- 2.Sb5#
- 2.Rxc6#
- 1...Qf1
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Qg2
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Qh1
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Qh2
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Qa3
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Qb3
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Qc3
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Qd3
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Qe3
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Qf3
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Qg3
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Ra1
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Rb1
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Rc1
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Rd1
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Rf1
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Rg1
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Rh1
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Re2
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Re3
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Rd5
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Re5
- 2.fxe5#
- 2.d8Q#
- 2.d8R#
- 1...Rf5
- 2.Sxf5#
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Rg5
- 2.d8Q#
- 2.d8R#
- 1...Rh6
- 2.Sf5#
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Sb5
- 2.Sxb5#
- 2.Be7#
- 2.Rc6#
- 2.d8Q#
- 2.d8R#
- 1...Sc8
- 2.Sb5#
- 2.Rc6#
- 2.dxc8S#
- 2.d8Q#
- 2.d8R#
- 1...Sb6
- 2.Be7#
- 1...Sc7
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...h6
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Qxh4!
- threat
- 1.Bg5?
- threat
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Rxe4
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Rxg5
- 2.d8Q#
- 2.d8R#
- 1...Bxg5
- 2.Sf5#
- 1...Sc6
- 2.Sb5#
- 2.Rxc6#
- 1...Qf1
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Qg2
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Qh1
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Qh2
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Qa3
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Qb3
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Qc3
- 2.d8Q#
- 2.d8R#
- 1...Qd3
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Qe3
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Qf3
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Qg3
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Ra1
- 2.Sf5#
- 2.e5#
- 2.d8Q#
- 2.d8R#
- 1...Rb1
- 2.Sf5#
- 2.e5#
- 2.d8Q#
- 2.d8R#
- 1...Rc1
- 2.Sf5#
- 2.e5#
- 2.d8Q#
- 2.d8R#
- 1...Rd1
- 2.Sf5#
- 2.e5#
- 2.d8Q#
- 2.d8R#
- 1...Rf1
- 2.Sf5#
- 2.e5#
- 2.d8Q#
- 2.d8R#
- 1...Rg1
- 2.Sf5#
- 2.e5#
- 2.d8Q#
- 2.d8R#
- 1...Rh1
- 2.Sf5#
- 2.e5#
- 2.d8Q#
- 2.d8R#
- 1...Re2
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Re3
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Rh6
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Bf2
- 2.Sf5#
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Bg3
- 2.Sf5#
- 2.Be7#
- 2.d8Q#
- 2.d8R#
- 1...Sb5
- 2.Sxb5#
- 2.Sf5#
- 2.Rc6#
- 2.d8Q#
- 2.d8R#
- 1...Sc8
- 2.Sb5#
- 2.Sf5#
- 2.Rc6#
- 2.dxc8S#
- 2.d8Q#
- 2.d8R#
- 1...Sb6
- 2.Sf5#
- 1...Sc7
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...h6
- 2.Sf5#
- 2.d8Q#
- 2.d8R#
- 1...Qxg4!
- threat
- 1.Rxh5?
- threat
- 2.Rd5#
- 2.c5#
- 1...Bf6+
- 2.Rxf6#
- 1...Qc3
- 2.Rd5#
- 1...Rc1
- 2.Rd5#
- 2.e5#
- 1...Bg5
- 2.c5#
- 1...Sb6
- 2.c5#
- 1...Sc7
- 2.c5#
- 1...Bxd8!
- threat
- 1.f5?
- threat
- 2.Rd5#
- 1...Bf6+
- 2.Rxf6#
- 1...Rxf5
- 2.Sxf5#
- 1...Sb6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...Bxd8!
- threat
- 1.g5?
- threat
- 2.Be7#
- 2.Rd5#
- 1...Qxd7
- 2.Rd5#
- 2.Rxd7#
- 1...Rxe4
- 2.Rd5#
- 1...Rxg5
- 2.Be7#
- 1...Bxg5
- 2.Rd5#
- 1...Qf5
- 2.Sxf5#
- 2.Be7#
- 1...Sc6
- 2.Sb5#
- 2.Rd5#
- 2.Rxc6#
- 1...Sc8
- 2.Sb5#
- 2.Rd5#
- 2.Rc6#
- 1...Sb6
- 2.Bc7#
- 2.Be7#
- 1...Sc7
- 2.Bxc7#
- 2.Be7#
- 1...Qe6!
- threat
- 1.Bxh4?
- Keys
- 1.Rg5!
- threat
- 2.Rf6#
- 2.c5#
- 1...Qxg4
- 2.c5#
- 1...Rxe4
- 2.c5#
- 1...Rxg5
- 2.Rf6#
- 1...Bxg5
- 2.c5#
- 1...Qc3
- 2.Rf6#
- 1...Rc1
- 2.Rf6#
- 2.e5#
- 1...Rh6
- 2.Rd5#
- 2.c5#
- 1...Sc7
- 2.Be7#
- 2.c5#
- threat
- 1.Rg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 7
- Sets
- R(d);N_GUARD::R1(G),XR(d)
- R(d);OGATE::P(E),XR(d)
- R(d);N_GUARD::S(C),XR(d)
- B(c);CHECK,N_GUARD::R(I),XB(c)
- B(c);N_GUARD::B(J),XB(c)
- S(h);N_GUARD::B(J)
- S(h);N_GUARD::B(J),XS(h)
- Tries
- Try
- B(J);XB(c)
- Threat
- DUALS(3)
- Vars
- Q(b);XP(F)::B(J)
- R(a);XP(D)::P=Q
- R(d);XR(G)::P=Q
- R(d);::P=Q
- S(h);::B(J)
- Refutation
- Q(b);XB(J)
- Try
- B(J);
- Threat
- DUALS(3)
- Vars
- R(d);XB(J)::P=Q
- B(c);XB(J)::S(C)
- Q(b);P_PINS(C)::P=Q
- S(h);::S(C)
- Refutation
- Q(b);XP(F)
- Try
- R(G);XR(d)
- Threat
- DUALS(2)
- Vars
- B(c);CHECK,N_GUARD::R(I),XB(c)
- Q(b);P_PINS(C)::R1(G)
- B(c);::P(B)
- S(h);::P(B)
- Refutation
- B(c);XB(J)
- Try
- P(E);
- Threat
- R1(G)
- Vars
- B(c);CHECK,N_GUARD::R(I),XB(c)
- R(d);XP(E)::S(C),XR(d)
- S(h);N_GUARD::B(J)
- S(h);N_GUARD::B(J),XS(h)
- Refutation
- B(c);XB(J)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- R(a);XP(D)::R1(G)
- R(d);XP(F)::B(J)
- B(c);XP(F)::R1(G)
- Refutation
- Q(b);
- Try
- Actual
- R(G);
- Threat
- DUALS(2)
- Vars
- Q(b);XP(F)::P(B)
- R(a);XP(D)::P(B)
- R(d);XR(G)::R(I)
- B(c);XR(G)::P(B)
- Q(b);P_PINS(C)::R(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).