MESON Chess Problem Database
Problem Display
PID: 73839 (4rr1N/1BnP2nq/1R6/N1P1k2p/KR5B/3p2PQ/8/b7 w - - 0 1)
Gamza, Grigory Stepanovich
Comm., Freie Presse, 1992
#2
11 + 9
| 6113 | Problemschach-Jahrbuch (1993) | 1994 |
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Rxe4#
- 1...Qg6
- 2.Sxg6#
- 1...Qg8
- 2.Sg6#
- 2.Re4#
- 1...Qh6
- 2.Re4#
- 1...Qxh8
- 2.Re4#
- 1...Rf4
- 2.gxf4#
- 1...Rf5
- 2.Re4#
- 1...Rf6
- 2.Bxf6#
- 1...Rf7
- 2.Sxf7#
- 1...Rg8
- 2.Sf7#
- 2.Bf6#
- 1...Rxh8
- 2.Bf6#
- 1...Bd4
- 2.Sc4#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Re4#
- 1...Qe4
- Tries
- 1.Rd6?
- threat
- 2.Sc4#
- 2.Sc6#
- 1...Qe4
- 2.Rxe4#
- 1...Qg8
- 2.Sc6#
- 2.Sg6#
- 2.Re4#
- 1...Rf4
- 2.Sc6#
- 2.gxf4#
- 1...Bd4
- 2.Sc4#
- 1...Sd5
- 2.Sc6#
- 2.Rxd5#
- 1...Ra8!
- threat
- 1.d8Q?
- threat
- 2.Sc4#
- 2.Sc6#
- 2.Qxc7#
- 2.Qd6#
- 1...Qf5
- 2.Sc4#
- 2.Qxc7#
- 2.Qd6#
- 1...Qe4
- 2.Rxe4#
- 2.Qxc7#
- 2.Qd6#
- 1...Qg6
- 2.Sc4#
- 2.Sxg6#
- 1...Qg8
- 2.Sc6#
- 2.Sg6#
- 2.Re4#
- 2.Qxc7#
- 2.Qd6#
- 1...Qh6
- 2.Sc4#
- 2.Re4#
- 1...Re6
- 2.Sc4#
- 1...Re7
- 2.Sc4#
- 2.Sc6#
- 2.Qd6#
- 1...Rf4
- 2.Sc6#
- 2.Qxc7#
- 2.Qd6#
- 2.gxf4#
- 1...Rf5
- 2.Sc4#
- 2.Re4#
- 2.Qxc7#
- 2.Qd6#
- 1...Rf6
- 2.Sc4#
- 2.Bxf6#
- 2.Qxf6#
- 1...Rf7
- 2.Sc4#
- 2.Sc6#
- 2.Sxf7#
- 2.Qd6#
- 1...Bd4
- 2.Sc4#
- 2.Qxc7#
- 2.Qxd4#
- 2.Qd6#
- 1...Sb5
- 2.Sc4#
- 2.Sc6#
- 2.Qd5#
- 1...Sd5
- 2.Sc6#
- 2.Qxd5#
- 2.Qd6#
- 1...Sa6
- 2.Sc4#
- 2.Sc6#
- 2.Qd5#
- 2.Qd6#
- 1...Sce6
- 2.Sc4#
- 2.Sc6#
- 2.Qd5#
- 2.Qd6#
- 1...Sa8
- 2.Sc4#
- 2.Sc6#
- 2.Qd5#
- 2.Qd6#
- 1...Sf5
- 2.Sc4#
- 2.Re4#
- 1...Sge6
- 2.Sc4#
- 2.Sc6#
- 2.Qd6#
- 1...Rxd8!
- threat
- 1.d8R?
- threat
- 2.Sc4#
- 2.Sc6#
- 1...Qf5
- 2.Sc4#
- 1...Qe4
- 2.Rxe4#
- 1...Qg6
- 2.Sc4#
- 2.Sxg6#
- 1...Qg8
- 2.Sc6#
- 2.Sg6#
- 2.Re4#
- 1...Qh6
- 2.Sc4#
- 2.Re4#
- 1...Re6
- 2.Sc4#
- 1...Rf4
- 2.Sc6#
- 2.gxf4#
- 1...Rf5
- 2.Sc4#
- 2.Re4#
- 1...Rf6
- 2.Sc4#
- 2.Bxf6#
- 1...Bd4
- 2.Sc4#
- 1...Sd5
- 2.Sc6#
- 2.Rxd5#
- 1...Sf5
- 2.Sc4#
- 2.Re4#
- 1...Rxd8!
- threat
- 1.Rd6?
- Keys
- 1.Rg6!
- threat
- 2.Re4#
- 1...Qxg6
- 2.Sxg6#
- 1...Rf4
- 2.gxf4#
- 1...Bd4
- 2.Sc4#
- 1...Sd5
- 2.Sc6#
- threat
- 1.Rg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- Q(g);N_GUARD,P_PINR(D)::R1(D),XQ(g)
- Q(g);N_GUARD::S(K),XQ(g)
- Q(g);N_GUARD::R1(D)
- Q(g);N_GUARD,XS(K)::R1(D)
- R(i);OGATE,P_PINR(D)::P(A),XR(i)
- R(i);S_CUTQ(g)::R1(D)
- R(i);N_GUARD::B(E),XR(i)
- R(i);N_GUARD::S(K),XR(i)
- R(i);N_GUARD,XS(K)::B(E)
- B(a);SBLOCK::S(F)
- S(e);SBLOCK::S(F)
- S(f);S_CUTQ(g)::R1(D)
- Tries
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,P_PINR(D)::R1(D),XQ(g)
- B(a);::S(F)
- Refutation
- R(h);P_PINS(F)
- Try
- P(J);
- Threat
- DUALS(4)
- Vars
- R(h);::S(F)
- Refutation
- R(h);XQ(J)
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- Q(g);::S(F)
- Q(g);N_GUARD,P_PINR(D)::R1(D),XQ(g)
- R(h);::S(F)
- B(a);::S(F)
- Refutation
- R(h);XR(J)
- Try
- Actual
- R(H);
- Threat
- R1(D)
- Vars
- Q(g);XR(H)::S(K),XQ(g)
- R(i);OGATE,P_PINR(D)::P(A),XR(i)
- B(a);SBLOCK::S(F)
- S(e);SBLOCK::S(F)
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).