MESON Chess Problem Database
Problem Display
PID: 206785 (Q7/6Rb/Pp2N1n1/1P1ppn2/4k3/2P5/3KPp2/5N2 w - - 0 1)
Portilla, Vincente Maria Norberto
Leipziger Schachzeitung, 1870
#2
9 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...Sxg7
- 2.Sg3#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sf8
- 2.Rg4#
- 1...Sh8
- 2.Rg4#
- 1...Se3
- Tries
- 1.Rxg6?
- threat
- 2.Rg4#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Se7
- 2.Sg3#
- 1...Sg7
- 2.Sg3#
- 1...Bxg6!
- threat
- 1.Rd7?
- threat
- 2.Qxd5#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...Sg7
- 2.Sg3#
- 1...Sf4
- 2.Sg5#
- 1...Sge7!
- threat
- 1.Rg8?
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...Sg7
- 2.Sg3#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sf8
- 2.Rg4#
- 1...Sh8
- 2.Rg4#
- 1...Bxg8!
- 1...Se3
- 1.Qc6?
- 1...Sxg7
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sf8
- 2.Rg4#
- 1...Sh8
- 2.Rg4#
- 1...Bg8!
- 1...Sxg7
- 1.Qb7?
- 1...Sxg7
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sf8
- 2.Rg4#
- 1...Sh8
- 2.Rg4#
- 1...Bg8!
- 1...Sxg7
- 1.Qa7?
- 1...Sxg7
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...d4
- 2.Qb7#
- 2.Qa8#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sf8
- 2.Rg4#
- 1...Sh8
- 2.Rg4#
- 1...Bg8!
- 1...Sxg7
- 1.Qb8?
- 1...Sxg7
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...d4
- 2.Qb7#
- 2.Qa8#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sf8
- 2.Rg4#
- 1...Sh8
- 2.Rg4#
- 1...Bg8!
- 1...Sxg7
- 1.Qc8?
- 1...Sxg7
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...d4
- 2.Qb7#
- 2.Qc6#
- 2.Qa8#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sf8
- 2.Rg4#
- 1...Sh8
- 2.Rg4#
- 1...Bg8!
- 1...Sxg7
- 1.Qd8?
- 1...Sxg7
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sf8
- 2.Rg4#
- 1...Sh8
- 2.Rg4#
- 1...d4
- 2.Qa8#
- 1...Bg8!
- 1...Sxg7
- 1.Qe8?
- 1...Sxg7
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...d4
- 2.Qc6#
- 2.Qa8#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sf8
- 2.Rg4#
- 1...Sh8
- 2.Rg4#
- 1...Bg8!
- 1...Sxg7
- 1.Qf8?
- 1...Sxg7
- 2.Sg3#
- 2.Sg5#
- 2.Qf3#
- 1...Sxf8
- 2.Rg4#
- 1...d4
- 2.Qa8#
- 1...Se3
- 2.Sg3#
- 2.Sg5#
- 2.Qf3#
- 1...Sg3
- 2.Sxg3#
- 2.Sg5#
- 2.Qf3#
- 1...Sd4
- 2.Sg3#
- 2.Sg5#
- 1...Sfh4
- 2.Sg3#
- 2.Sg5#
- 1...Sd6
- 2.Sg3#
- 2.Sg5#
- 2.Qf3#
- 1...Sh6
- 2.Sg3#
- 2.Sg5#
- 2.Qf3#
- 1...Sfe7
- 2.Sg3#
- 2.Sg5#
- 2.Qf3#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sh8
- 2.Rg4#
- 1...Bg8!
- 1...Sxg7
- 1.Qg8?
- 1...Sxg7
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...d4
- 2.Qa8#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sf8
- 2.Rg4#
- 1...Sh8
- 2.Rg4#
- 1...Bxg8!
- 1...Sxg7
- 1.c4?
- threat
- 2.Qxd5#
- 1...Sxg7
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...Sge7
- 2.Rg4#
- 1...Sf4!
- threat
- 1.a7?
- 1...Sxg7
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sf8
- 2.Rg4#
- 1...Sh8
- 2.Rg4#
- 1...Bg8!
- 1...Sxg7
- 1.Rxg6?
- Keys
- 1.Qh8!
- 1...Sxg7
- 2.Sg3#
- 1...Sxh8
- 2.Rg4#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sd4
- 2.Sg3#
- 1...Sfh4
- 2.Sg3#
- 1...Sd6
- 2.Sg3#
- 1...Sh6
- 2.Sg3#
- 1...Sfe7
- 2.Sg3#
- 1...d4
- 2.Qa8#
- 1...Bg8
- 2.Qh1#
- 1...Sf4
- 2.Sg5#
- 1...Sgh4
- 2.Rg4#
- 1...Sge7
- 2.Rg4#
- 1...Sf8
- 2.Rg4#
- 1...Sxg7
- 1.Qh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- S(e);N_GUARD,XR(H)::S(A)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
- Tries
- Try
- R(H);XS(g)
- Threat
- R(H)
- Vars
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- Refutation
- B(h);XR(H)
- Try
- R(H);
- Threat
- QAB1(I),XP(c)
- Vars
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- S(g);SBLOCK::S(G)
- Refutation
- S(g);
- Try
- R(H);
- Vars
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
- Refutation
- B(h);XR(H)
- Try
- Q(I);
- Vars
- S(e);N_GUARD,XR(H)::S(A)
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
- Refutation
- B(h);
- Try
- Q(I);
- Vars
- S(e);N_GUARD,XR(H)::S(A)
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
- Refutation
- B(h);
- Try
- Q(I);N_PINP(c)
- Vars
- S(e);N_GUARD,XR(H)::S(A)
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
- Refutation
- B(h);
- Try
- Q(I);N_PINP(c)
- Vars
- S(e);N_GUARD,XR(H)::S(A)
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
- Refutation
- B(h);
- Try
- Q(I);N_PINP(c)
- Vars
- S(e);N_GUARD,XR(H)::S(A)
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
- Refutation
- B(h);
- Try
- Q(I);N_PINP(c)
- Vars
- S(e);N_GUARD,XR(H)::S(A)
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
- P(c);OGATEB::QAB(I)
- Refutation
- B(h);
- Try
- Q(I);N_PINP(c)
- Vars
- S(e);N_GUARD,XR(H)::S(A)
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
- Refutation
- B(h);
- Try
- Q(I);N_PINP(c)
- Vars
- S(g);OGATE,XQ(I)::R(H)
- P(c);OGATEB::QAB(I)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
- Refutation
- B(h);
- Try
- Q(I);N_PINP(c)
- Vars
- S(e);N_GUARD,XR(H)::S(A)
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- P(c);OGATEB::QAB(I)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
- Refutation
- B(h);XQ(I)
- Try
- P(D);
- Threat
- QAB1(I),XP(c)
- Vars
- S(e);N_GUARD,XR(H)::S(A)
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- S(g);OGATE::R(H)
- Refutation
- S(g);
- Try
- P(F);
- Vars
- S(e);N_GUARD,XR(H)::S(A)
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
- Refutation
- B(h);
- Try
- Actual
- Q(I);N_PINP(c)
- Vars
- S(e);N_GUARD,XR(H)::S(A)
- S(g);OGATE,XQ(I)::R(H)
- S(e);N_GUARD::S(A)
- S(e);N_GUARD::S(A),XS(e)
- P(c);OGATEB::QAB(I)
- B(h);OGATE::QAB(I)
- S(g);SBLOCK::S(G)
- S(g);OGATE::R(H)
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).