MESON Chess Problem Database
Problem Display
PID: 6872 (2R1R3/8/2NPNp2/2nkn3/2p1p3/B1PpP1Q1/3p4/3K4 w - - 0 1)
Apro, Laszlo
4th Prize, La Giostra Enigmistica, 1934
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Sb3
- 2.Sf4#
- 1...Sa4
- 2.Sf4#
- 1...Sa6
- 2.Sf4#
- 1...Sxe6
- 2.Se7#
- 1...Sb7
- 2.Sf4#
- 1...Scd7
- 2.Sf4#
- 1...Sf3
- 2.Sb4#
- 1...Sg4
- 2.Sb4#
- 1...Sxc6
- 2.Sc7#
- 1...Sg6
- 2.Sb4#
- 1...Sed7
- 2.Sb4#
- 1...Sf7
- 2.Sb4#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- Tries
- 1.Sed4?
- 1...Kxd6
- 2.Red8#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Se7#
- 1...Sa4
- 2.Se7#
- 1...Sa6
- 2.Se7#
- 1...Se6
- 2.Se7#
- 1...Sb7
- 2.Se7#
- 1...Scd7
- 2.Se7#
- 1...Sf3
- 2.Sb4#
- 2.Se7#
- 1...Sg4
- 2.Sb4#
- 2.Se7#
- 1...Sg6
- 2.Sb4#
- 1...Sed7
- 2.Sb4#
- 2.Se7#
- 1...Sf7
- 2.Sb4#
- 2.Se7#
- 1...Sxc6!
- 1...Kxd6
- 1.Sxc5?
- 1...Kxd6
- 2.Red8#
- 1...f5
- 2.Qxe5#
- 1...Sf3
- 2.Sb4#
- 2.Se7#
- 1...Sg4
- 2.Sb4#
- 2.Se7#
- 1...Sg6
- 2.Sb4#
- 1...Sd7
- 2.Sb4#
- 2.Se7#
- 1...Sf7
- 2.Sb4#
- 2.Se7#
- 1...Sxc6!
- 1...Kxd6
- 1.Sg5?
- 1...Kxd6
- 2.Red8#
- 1...fxg5
- 2.Qxe5#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Se7#
- 1...Sa4
- 2.Se7#
- 1...Sa6
- 2.Se7#
- 1...Se6
- 2.Se7#
- 1...Sb7
- 2.Se7#
- 1...Scd7
- 2.Se7#
- 1...Sf3
- 2.Sb4#
- 2.Se7#
- 1...Sg4
- 2.Sb4#
- 2.Se7#
- 1...Sg6
- 2.Sb4#
- 1...Sed7
- 2.Sb4#
- 2.Se7#
- 1...Sf7
- 2.Sb4#
- 2.Se7#
- 1...Sxc6!
- 1...Kxd6
- 1.Sg7?
- 1...Kxd6
- 2.Red8#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Se7#
- 1...Sa4
- 2.Se7#
- 1...Sa6
- 2.Se7#
- 1...Se6
- 2.Se7#
- 1...Sb7
- 2.Se7#
- 1...Scd7
- 2.Se7#
- 1...Sf3
- 2.Sb4#
- 2.Se7#
- 1...Sg4
- 2.Sb4#
- 2.Se7#
- 1...Sg6
- 2.Sb4#
- 1...Sed7
- 2.Sb4#
- 2.Se7#
- 1...Sf7
- 2.Sb4#
- 2.Se7#
- 1...Sxc6!
- 1...Kxd6
- 1.Sf8?
- 1...Kxd6
- 2.Red8#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Se7#
- 1...Sa4
- 2.Se7#
- 1...Sa6
- 2.Se7#
- 1...Se6
- 2.Se7#
- 1...Sb7
- 2.Se7#
- 1...Scd7
- 2.Se7#
- 1...Sf3
- 2.Sb4#
- 2.Se7#
- 1...Sg4
- 2.Sb4#
- 2.Se7#
- 1...Sg6
- 2.Sb4#
- 1...Sed7
- 2.Sb4#
- 2.Se7#
- 1...Sf7
- 2.Sb4#
- 2.Se7#
- 1...Sxc6!
- 1...Kxd6
- 1.Qh2?
- 1...Sxe6
- 2.Se7#
- 1...Sxc6
- 2.Sc7#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Sf4#
- 1...Sa4
- 2.Sf4#
- 1...Sa6
- 2.Sf4#
- 1...Sb7
- 2.Sf4#
- 1...Scd7
- 2.Sf4#
- 1...Sf3
- 2.Sb4#
- 1...Sg4
- 2.Sb4#
- 1...Sg6
- 2.Sb4#
- 1...Sed7
- 2.Sb4#
- 1...Sf7
- 2.Sb4#
- 1...Kxd6!
- 1...Sxe6
- 1.Sed4?
- Keys
- 1.d7!
- 1...Kd6
- 2.d8Q#
- 2.d8R#
- 1...Sxe6
- 2.Se7#
- 1...Scxd7
- 2.Sf4#
- 1...Sxc6
- 2.Sc7#
- 1...Sexd7
- 2.Sb4#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Sf4#
- 1...Sa4
- 2.Sf4#
- 1...Sa6
- 2.Sf4#
- 1...Sb7
- 2.Sf4#
- 1...Sf3
- 2.Sb4#
- 1...Sg4
- 2.Sb4#
- 1...Sg6
- 2.Sb4#
- 1...Sf7
- 2.Sb4#
- 1...Kd6
- 1.d7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(e);::S(H)
- S(e);SBLOCK,XS(H)::S(F)
- S(g);::S(F)
- S(g);SBLOCK,XS(F)::S(H)
- P(h);N_GUARD::QAR1(E),XS(g)
- Tries
- Try
- S(H);
- Vars
- K(f);OGATEB,P-FLIGHT,P_SPINS(e),XP(G)::R(J)
- P(h);N_GUARD::QAR1(E),XS(g)
- S(e);::S(F)
- S(g);::S(F)
- Refutation
- S(g);XS(F)
- Try
- S(H);XS(e)
- Vars
- K(f);OGATEB,P-FLIGHT,P_SPINS(g),XP(G)::R(J)
- P(h);N_GUARD::QAR1(E),XS(g)
- S(g);::S(F)
- Refutation
- S(g);XS(F)
- Try
- S(H);
- Vars
- K(f);OGATEB,P-FLIGHT,P_SPINS(e),XP(G)::R(J)
- P(h);N_GUARD,XS(H)::QAR1(E),XS(g)
- P(h);N_GUARD::QAR1(E),XS(g)
- S(e);::S(F)
- S(g);::S(F)
- Refutation
- S(g);XS(F)
- Try
- S(H);
- Vars
- K(f);OGATEB,P-FLIGHT,P_SPINS(e),XP(G)::R(J)
- P(h);N_GUARD::QAR1(E),XS(g)
- S(e);::S(F)
- S(g);::S(F)
- Refutation
- S(g);XS(F)
- Try
- S(H);
- Vars
- K(f);OGATEB,P-FLIGHT,P_SPINS(e),XP(G)::R(J)
- P(h);N_GUARD::QAR1(E),XS(g)
- S(e);::S(F)
- S(g);::S(F)
- Refutation
- S(g);XS(F)
- Try
- Q(E);
- Vars
- S(e);SBLOCK,XS(H)::S(F)
- S(g);SBLOCK,XS(F)::S(H)
- P(h);N_GUARD::QAR1(E),XS(g)
- S(e);::S(H)
- S(g);::S(F)
- Refutation
- K(f);P-FLIGHT,P_SPINS(e),XP(G)
- Try
- Actual
- P(G);
- Vars
- K(f);P-FLIGHT,P_SPINS(e)::P=Q
- S(e);SBLOCK,XS(H)::S(F)
- S(e);XP(G)::S(H)
- S(g);SBLOCK,XS(F)::S(H)
- S(g);XP(G)::S(F)
- P(h);N_GUARD::QAR1(E),XS(g)
- S(e);::S(H)
- S(g);::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).