MESON Chess Problem Database
Problem Display
PID: 272023 (6Qb/3PPp2/3R1Pp1/3ppkpN/3RpNn1/7B/4K2B/8 w - - 0 1)
Schogt, Hans
4th HM., Schakend Nederland, 1984
#2
11 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Bxf6
- 2.Rxf6#
- 1...Bg7
- 2.Sxg7#
- 1...e3
- 2.Sg3#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...gxh5
- 2.Qh7#
- 1...Bxf6
- Tries
- 1.Kd1?
- 1...Bxf6
- 2.Rxf6#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...gxh5
- 2.Qh7#
- 1...Bg7
- 2.Sxg7#
- 1...e3
- 2.Sg3#
- 1...gxf4!
- 1...Bxf6
- 1.Ke1?
- 1...Bxf6
- 2.Rxf6#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...gxh5
- 2.Qh7#
- 1...Bg7
- 2.Sxg7#
- 1...e3
- 2.Sg3#
- 1...gxf4!
- 1...Bxf6
- 1.Kf1?
- 1...Bxf6
- 2.Rxf6#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...gxh5
- 2.Qh7#
- 1...Bg7
- 2.Sxg7#
- 1...e3
- 2.Sg3#
- 1...gxf4!
- 1...Bxf6
- 1.Sg2?
- threat
- 2.Se3#
- 2.Sg3#
- 1...gxh5
- 2.Se3#
- 2.Qh7#
- 1...e3
- 2.Sxe3#
- 2.Sg3#
- 2.Bxg4#
- 1...exd4!
- threat
- 1.Sd3?
- threat
- 2.Sg3#
- 1...gxh5
- 2.Qh7#
- 1...exd3+!
- threat
- 1.Sxd5?
- threat
- 2.Se3#
- 2.Sg3#
- 1...gxh5
- 2.Se3#
- 2.Qh7#
- 1...e3
- 2.Sxe3#
- 2.Sg3#
- 2.Bxg4#
- 1...exd4!
- threat
- 1.Sxg6?
- threat
- 2.Sg3#
- 1...fxg6
- 2.Qe6#
- 1...Bg7!
- threat
- 1.Qxf7?
- threat
- 2.Qe6#
- 2.Qxg6#
- 1...exd4
- 2.Rxd5#
- 2.Qxd5#
- 2.Qe6#
- 1...exf4
- 2.R4xd5#
- 2.R6xd5#
- 2.Qxd5#
- 2.Qe6#
- 1...gxh5
- 2.Qe6#
- 2.Qg6#
- 2.Qh7#
- 1...gxf4!
- threat
- 1.Qh7?
- 1...Bxf6
- 2.Rxf6#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...Bg7
- 2.Sxg7#
- 1...e3
- 2.Sg3#
- 1...gxf4!
- 1...Bxf6
- 1.Qg7?
- 1...Bxg7
- 2.Sxg7#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...gxh5
- 2.Qh7#
- 1...e3
- 2.Sg3#
- 1...gxf4!
- 1...Bxg7
- 1.Qc8?
- threat
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Bxf6
- 2.Rxf6#
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...gxh5
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Bg7
- 2.Sxg7#
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...e3
- 2.Sg3#
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...gxf4!
- threat
- 1.Qxh8?
- threat
- 2.Sg7#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...gxh5
- 2.Qh7#
- 1...gxf4!
- threat
- 1.d8Q?
- threat
- 2.Qd7#
- 2.Qc8#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...gxf4!
- threat
- 1.d8S?
- 1...Bxf6
- 2.Rxf6#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 2.R6xd5#
- 1...gxh5
- 2.Qh7#
- 1...Bg7
- 2.Sxg7#
- 1...e3
- 2.Sg3#
- 1...gxf4!
- 1...Bxf6
- 1.d8B?
- 1...Bxf6
- 2.Rxf6#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...gxh5
- 2.Qh7#
- 1...Bg7
- 2.Sxg7#
- 1...e3
- 2.Sg3#
- 1...gxf4!
- 1...Bxf6
- 1.d8R?
- 1...Bxf6
- 2.Rxf6#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...gxh5
- 2.Qh7#
- 1...Bg7
- 2.Sxg7#
- 1...e3
- 2.Sg3#
- 1...gxf4!
- 1...Bxf6
- 1.e8Q?
- 1...Bxf6
- 2.Rxf6#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 2.R6xd5#
- 1...gxh5
- 2.Qh7#
- 1...Bg7
- 2.Sxg7#
- 1...e3
- 2.Sg3#
- 1...gxf4!
- 1...Bxf6
- 1.e8S?
- 1...Bxf6
- 2.Rxf6#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...gxh5
- 2.Qh7#
- 1...Bg7
- 2.Shxg7#
- 2.Sexg7#
- 1...e3
- 2.Sg3#
- 1...gxf4!
- 1...Bxf6
- 1.e8B?
- 1...Bxf6
- 2.Rxf6#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 1...gxh5
- 2.Qh7#
- 1...Bg7
- 2.Sxg7#
- 1...e3
- 2.Sg3#
- 1...gxf4!
- 1...Bxf6
- 1.e8R?
- 1...Bxf6
- 2.Rxf6#
- 1...exd4
- 2.Rxd5#
- 1...exf4
- 2.R4xd5#
- 2.R6xd5#
- 1...gxh5
- 2.Qh7#
- 1...Bg7
- 2.Sxg7#
- 1...e3
- 2.Sg3#
- 1...gxf4!
- 1...Bxf6
- 1.Kd1?
- Keys
- 1.Se6!
- 1...Bxf6
- 2.Sg3#
- 1...exd4
- 2.Sxd4#
- 1...gxh5
- 2.Qxg5#
- 1...fxe6
- 2.Qxe6#
- 1...Bg7
- 2.Sexg7#
- 1...e3
- 2.Bxg4#
- 1...Bxf6
- 1.Se6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(i);OGATE,XP(H)::R1(G),XB(i)
- B(i);N_GUARD::S(F),XB(i)
- P(a);::S(F)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- B(i);OGATE,XP(H)::R1(G),XB(i)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- B(i);N_GUARD::S(F),XB(i)
- P(a);::S(F)
- Refutation
- P(f);XS(E)
- Try
- K(A);P-FLIGHT
- Vars
- B(i);OGATE,XP(H)::R1(G),XB(i)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- B(i);N_GUARD::S(F),XB(i)
- P(a);::S(F)
- Refutation
- P(f);XS(E)
- Try
- K(A);S_FLIGHT
- Vars
- B(i);OGATE,XP(H)::R1(G),XB(i)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- B(i);N_GUARD::S(F),XB(i)
- P(a);::S(F)
- Refutation
- P(f);XS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Refutation
- P(d);XR(D)
- Try
- S(E);
- Threat
- S(F)
- Vars
- P(g);OGATEB,XS(F)::QAB(K)
- Refutation
- P(a);CHECK,XS(E)
- Try
- S(E);XP(c)
- Threat
- DUALS(2)
- Refutation
- P(d);XR(D)
- Try
- S(E);XP(g)
- Threat
- S(F)
- Vars
- P(h);OGATE,SBLOCK,XS(E)::QAB1(K)
- Refutation
- B(i);
- Try
- Q(K);XP(h)
- Threat
- DUALS(2)
- Refutation
- P(f);XS(E)
- Try
- Q(K);P_PINP(g)
- Vars
- B(i);OGATE,XP(H)::R1(G),XB(i)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- B(i);N_GUARD::S(F),XB(i)
- P(a);::S(F)
- Refutation
- P(f);XS(E)
- Try
- Q(K);
- Vars
- B(i);XQ(K)::S(F),XB(i)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- P(a);::S(F)
- Refutation
- P(f);XS(E)
- Try
- Q(K);
- Threat
- DUALS(4)
- Vars
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- Refutation
- P(f);XS(E)
- Try
- Q(K);XB(i)
- Threat
- S(F)
- Vars
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- Refutation
- P(f);XS(E)
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- Refutation
- P(f);XS(E)
- Try
- P(I);
- Vars
- B(i);OGATE,XP(H)::R1(G),XB(i)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- B(i);N_GUARD::S(F),XB(i)
- P(a);::S(F)
- Refutation
- P(f);XS(E)
- Try
- P(I);
- Vars
- B(i);OGATE,XP(H)::R1(G),XB(i)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- B(i);N_GUARD::S(F),XB(i)
- P(a);::S(F)
- Refutation
- P(f);XS(E)
- Try
- P(I);
- Vars
- B(i);OGATE,XP(H)::R1(G),XB(i)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- B(i);N_GUARD::S(F),XB(i)
- P(a);::S(F)
- Refutation
- P(f);XS(E)
- Try
- P(J);
- Vars
- B(i);OGATE,XP(H)::R1(G),XB(i)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- B(i);N_GUARD::S(F),XB(i)
- P(a);::S(F)
- Refutation
- P(f);XS(E)
- Try
- P(J);
- Vars
- B(i);OGATE,XP(H)::R1(G),XB(i)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- P(a);::S(F)
- Refutation
- P(f);XS(E)
- Try
- P(J);
- Vars
- B(i);OGATE,XP(H)::R1(G),XB(i)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(d);OGATEB,XS(E)::R(D),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- B(i);N_GUARD::S(F),XB(i)
- P(a);::S(F)
- Refutation
- P(f);XS(E)
- Try
- P(J);
- Vars
- B(i);OGATE,XP(H)::R1(G),XB(i)
- P(d);OGATEB,XR(D)::R(G),XP(c)
- P(g);OGATEB,XS(F)::QAB(K)
- B(i);N_GUARD::S(F),XB(i)
- P(a);::S(F)
- Refutation
- P(f);XS(E)
- Try
- Actual
- S(E);
- Vars
- B(i);SBLOCK,XP(H)::S(F)
- P(d);XR(D)::S(E),XP(d)
- P(g);OGATE,XS(F)::QAR1(K),XP(f)
- P(h);OGATE,XS(E)::QAB1(K),XP(h)
- B(i);N_GUARD::S(E),XB(i)
- P(a);::B(C),XS(b)
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).