MESON Chess Problem Database
Problem Display
PID: 99928 (qbb3Q1/8/R4p2/3Bnk2/R3p3/8/4NNn1/B6K w - - 0 1)
Szoghy, Jozsef
Magyar Sakkelet, 1989
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxa6
- 2.Bxe4#
- 1...Qa7
- 2.Bxe4#
- 1...Bxa6
- 2.Be6#
- 1...Be6
- 2.Bxe6#
- 1...Bb7
- 2.Be6#
- 1...Sf4
- 2.Sg3#
- 2.Sd4#
- 1...Sd3
- 2.Rxf6#
- 2.Qg4#
- 1...Sf3
- 2.Rxf6#
- 2.Qg4#
- 1...Sc4
- 2.Rxf6#
- 2.Qg4#
- 1...Sg4
- 2.Qxg4#
- 1...Sc6
- 2.Bxe4#
- 2.Qg4#
- 1...Sd7
- 2.Be6#
- 2.Qg4#
- 1...Sf7
- 2.Rxf6#
- 2.Qg4#
- 1...e3
- 2.Sg3#
- 1...Qxa6
- Tries
- 1.Sd3?
- threat
- 2.Sg3#
- 2.Sd4#
- 1...Qxd5
- 2.Sg3#
- 1...Sxd3
- 2.Rxf6#
- 1...exd3
- 2.Sg3#
- 1...Qa7
- 2.Sg3#
- 2.Bxe4#
- 1...Ba7
- 2.Sg3#
- 1...Sf3
- 2.Rxf6#
- 1...Sc4
- 2.Sd4#
- 2.Rxf6#
- 1...Sg4
- 2.Sd4#
- 1...Sc6
- 2.Bxe4#
- 1...Sd7
- 2.Sd4#
- 2.Be6#
- 1...Sf7
- 2.Sd4#
- 2.Rxf6#
- 1...Sg6!
- threat
- 1.Sxe4?
- threat
- 2.S4g3#
- 2.Rxf6#
- 1...Qxa6
- 2.S4g3#
- 1...Bxa6
- 2.S4g3#
- 2.Be6#
- 1...Sg6
- 2.Qxc8#
- 1...Qc6
- 2.S4g3#
- 1...Bd6
- 2.S4g3#
- 2.Sxd6#
- 1...Be6
- 2.S4g3#
- 2.Bxe6#
- 1...Sd3
- 2.Rxf6#
- 1...Sf3
- 2.Rxf6#
- 1...Sc4
- 2.Rxf6#
- 1...Sg4
- 2.Qh7#
- 1...Sd7
- 2.Be6#
- 1...Sf7
- 2.Rxf6#
- 1...Sc6!
- threat
- 1.Rxe4?
- threat
- 2.Sg3#
- 2.Sd4#
- 1...Qxd5
- 2.Sg3#
- 1...Qa7
- 2.Sg3#
- 1...Ba7
- 2.Sg3#
- 1...Sd3
- 2.Sd4#
- 2.Rxf6#
- 2.Qg4#
- 1...Sf3
- 2.Rxf6#
- 2.Qg4#
- 1...Sc4
- 2.Sd4#
- 2.Rxf6#
- 2.Qg4#
- 1...Sg4
- 2.Sd4#
- 2.Qxg4#
- 1...Sc6
- 2.Qg4#
- 1...Sd7
- 2.Sd4#
- 2.Be6#
- 2.Qg4#
- 1...Sf7
- 2.Sd4#
- 2.Rxf6#
- 2.Qg4#
- 1...Sg6!
- threat
- 1.Rxa8?
- threat
- 2.Bxe4#
- 1...Bb7
- 2.Be6#
- 1...Sf7
- 2.Qg4#
- 1...e3
- 2.Sg3#
- 2.Be4#
- 1...Sg6!
- threat
- 1.Qh7+?
- 1...Sg6
- 2.Qh5#
- 1...Kg5!
- 1...Sg6
- 1.Sd3?
- Keys
- 1.Sh3!
- threat
- 2.Sg3#
- 2.Sd4#
- 1...Qxd5
- 2.Sg3#
- 1...Sg6
- 2.Qxc8#
- 1...Qa7
- 2.Sg3#
- 2.Bxe4#
- 1...Ba7
- 2.Sg3#
- 1...Sd3
- 2.Rxf6#
- 1...Sf3
- 2.Rxf6#
- 1...Sc4
- 2.Rxf6#
- 1...Sg4
- 2.Qh7#
- 1...Sc6
- 2.Bxe4#
- 1...Sd7
- 2.Be6#
- 1...Sf7
- 2.Rxf6#
- threat
- 1.Sh3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 6
- Sets
- Q(f);N_GUARD,XR(G)::B(F),XP(b)
- Q(f);N_GUARD::B(F),XP(b)
- B(h);N_GUARD,XR(G)::B(F)
- B(h);N_GUARD::B(F),XB(h)
- B(h);N_GUARD::B(F)
- S(c);N_GUARD::QAB1(H),XS(c)
- P(b);::S(C)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(f);XB(F)::S(C)
- S(c);XS(D)::R1(G),XP(e)
- P(b);XS(D)::S(C)
- B(g);::S(C)
- S(c);::R1(G),XP(e)
- S(c);::S(C)
- S(c);S_CUTQ(f)::B(F),XP(b)
- Refutation
- S(c);
- Try
- S(D);XP(b)
- Threat
- DUALS(2)
- Vars
- Q(f);XR(G)::S(D)
- S(c);N_GUARD,SBLOCK::QAB(H),XB(h)
- Q(f);::S(D)
- S(c);::R1(G),XP(e)
- S(c);N_GUARD,SBLOCK::QAB(H)
- S(c);S_CUTB(h)::B(F)
- Refutation
- S(c);
- Try
- R(E);XP(b)
- Threat
- DUALS(2)
- Vars
- Q(f);XB(F)::S(C)
- Q(f);::S(C)
- B(g);::S(C)
- S(c);N_GUARD::QAB1(H)
- Refutation
- S(c);
- Try
- R(G);XQ(f)
- Threat
- B(F),XP(b)
- Vars
- B(h);N_GUARD::B(F)
- S(c);N_GUARD::QAB1(H)
- Refutation
- S(c);
- Try
- Q(H);CHECK
- Vars
- S(c);P_SPINS(c)::QAR2(H)
- Refutation
- K(d);P-FLIGHT
- Try
- Actual
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(f);XB(F)::S(C)
- S(c);N_GUARD,SBLOCK::QAB(H),XB(h)
- B(g);::S(C)
- S(c);::R1(G),XP(e)
- S(c);N_GUARD,SBLOCK::QAB(H)
- S(c);S_CUTQ(f)::B(F),XP(b)
- S(c);S_CUTB(h)::B(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).