MESON Chess Problem Database
Problem Display
PID: 278198 (8/8/4ppn1/pnPPkP1p/Q7/1K6/2N5/3R1R2 w - - 0 1)
Bartolovic, Hrvoje
Stella Polaris, 1972
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sd4+
- 2.Qxd4#
- 1...Sd6
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sf4
- 2.Qxf4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...exd5
- 2.Rde1#
- 1...exf5
- 2.Rfe1#
- 1...Sa3
- Tries
- 1.Kb2?
- 1...exd5
- 2.Rde1#
- 1...exf5
- 2.Rfe1#
- 1...Sd4
- 2.Qxd4#
- 1...Sf4
- 2.Qxf4#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...h4!
- 1...exd5
- 1.Sa1?
- 1...Sd4+
- 2.Qxd4#
- 1...exd5
- 2.Rde1#
- 1...exf5
- 2.Rfe1#
- 1...Sf4
- 2.Qxf4#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...h4!
- 1...Sd4+
- 1.Se1?
- 1...Sd4+
- 2.Qxd4#
- 1...exd5
- 2.Sd3#
- 1...exf5
- 2.Sf3#
- 1...Sf4
- 2.Qxf4#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...h4!
- 1...Sd4+
- 1.Sa3?
- 1...Sd4+
- 2.Qxd4#
- 1...Sxa3
- 2.Qd4#
- 1...exd5
- 2.Rde1#
- 1...exf5
- 2.Rfe1#
- 1...Sf4
- 2.Qxf4#
- 1...Sc3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...h4!
- 1...Sd4+
- 1.Rd2?
- 1...Sd4+
- 2.Qxd4#
- 1...exd5
- 2.Re2#
- 1...exf5
- 2.Re1#
- 1...Sf4
- 2.Qxf4#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...h4!
- 1...Sd4+
- 1.Rd3?
- 1...Sd4+
- 2.Qxd4#
- 1...exd5
- 2.Re3#
- 1...exf5
- 2.Re1#
- 1...Sf4
- 2.Qxf4#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...h4!
- 1...Sd4+
- 1.Rf2?
- 1...Sd4+
- 2.Qxd4#
- 1...exd5
- 2.Re1#
- 1...exf5
- 2.Re2#
- 1...Sf4
- 2.Qxf4#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...h4!
- 1...Sd4+
- 1.Rf3?
- 1...Sd4+
- 2.Qxd4#
- 1...exd5
- 2.Re1#
- 1...exf5
- 2.Re3#
- 1...Sf4
- 2.Qxf4#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...h4!
- 1...Sd4+
- 1.Qc4?
- threat
- 2.Rde1#
- 2.Qe2#
- 1...Sd4+
- 2.Qxd4#
- 1...Sf4
- 2.Qxf4#
- 1...Sc3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...a4+!
- threat
- 1.dxe6?
- 1...Sd4+
- 2.Qxd4#
- 1...Sf4
- 2.Qxf4#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...h4!
- 1...Sd4+
- 1.d6?
- 1...Sd4+
- 2.Qxd4#
- 1...Sxd6
- 2.Qd4#
- 1...exf5
- 2.Rfe1#
- 1...Sf4
- 2.Qxf4#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...h4!
- 1...Sd4+
- 1.fxg6?
- threat
- 2.Qf4#
- 1...Sd4+
- 2.Qxd4#
- 1...exd5
- 2.Rde1#
- 1...f5!
- threat
- 1.Kb2?
- Keys
- 1.Se3!
- 1...Sd4+
- 2.Qxd4#
- 1...exd5
- 2.Rxd5#
- 1...exf5
- 2.Rxf5#
- 1...h4
- 2.Sg4#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sf4
- 2.Qxf4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...Sd4+
- 1.Se3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::QAB1(E)
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(g);N_GUARD::QAB1(E)
- P(e);SBLOCK,XP(G)::R(A)
- P(e);SBLOCK,XP(H)::R(B)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- P(e);SBLOCK,XP(G)::R(A)
- P(e);SBLOCK,XP(H)::R(B)
- S(b);N_GUARD::QAB1(E),XS(b)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(b);N_GUARD::QAB1(E)
- S(g);N_GUARD::QAB1(E)
- Refutation
- P(d);
- Try
- S(C);
- Vars
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- P(e);SBLOCK,XP(G)::R(A)
- P(e);SBLOCK,XP(H)::R(B)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(b);N_GUARD::QAB1(E)
- S(g);N_GUARD::QAB1(E)
- Refutation
- P(d);
- Try
- S(C);
- Vars
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- P(e);SBLOCK,XP(G)::S(C)
- P(e);SBLOCK,XP(H)::S(C)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(b);N_GUARD::QAB1(E)
- S(g);N_GUARD::QAB1(E)
- Refutation
- P(d);
- Try
- S(C);
- Vars
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- S(b);N_GUARD,XS(C)::QAB1(E)
- P(e);SBLOCK,XP(G)::R(A)
- P(e);SBLOCK,XP(H)::R(B)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(b);N_GUARD::QAB1(E)
- S(g);N_GUARD::QAB1(E)
- Refutation
- P(d);
- Try
- R(A);
- Vars
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- P(e);SBLOCK,XP(G)::R(A)
- P(e);SBLOCK,XP(H)::R(B)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(b);N_GUARD::QAB1(E)
- S(g);N_GUARD::QAB1(E)
- Refutation
- P(d);
- Try
- R(A);
- Vars
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- P(e);SBLOCK,XP(G)::R(A)
- P(e);SBLOCK,XP(H)::R(B)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(b);N_GUARD::QAB1(E)
- S(g);N_GUARD::QAB1(E)
- Refutation
- P(d);
- Try
- R(B);
- Vars
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- P(e);SBLOCK,XP(G)::R(A)
- P(e);SBLOCK,XP(H)::R(B)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(b);N_GUARD::QAB1(E)
- S(g);N_GUARD::QAB1(E)
- Refutation
- P(d);
- Try
- R(B);
- Vars
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- P(e);SBLOCK,XP(G)::R(A)
- P(e);SBLOCK,XP(H)::R(B)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(b);N_GUARD::QAB1(E)
- S(g);N_GUARD::QAB1(E)
- Refutation
- P(d);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(b);N_GUARD::QAB1(E)
- Refutation
- P(a);CHECK
- Try
- P(G);XP(e)
- Vars
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(b);N_GUARD::QAB1(E)
- S(g);N_GUARD::QAB1(E)
- Refutation
- P(d);
- Try
- P(G);
- Vars
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- S(b);N_GUARD,XP(G)::QAB1(E)
- P(e);SBLOCK,XP(H)::R(B)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(b);N_GUARD::QAB1(E)
- S(g);N_GUARD::QAB1(E)
- Refutation
- P(d);
- Try
- P(H);XS(g)
- Threat
- QAB1(E)
- Vars
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- P(e);SBLOCK,XP(G)::R(A)
- Refutation
- P(f);
- Try
- Actual
- S(C);
- Vars
- S(b);CHECK,N_GUARD::QAB1(E),XS(b)
- P(e);OGATE,XP(G)::R1(A),XP(e)
- P(e);OGATE,XP(H)::R1(B),XP(e)
- P(d);N_GUARD::S(C)
- S(b);N_GUARD::QAB1(E)
- S(g);N_GUARD::QAB1(E),XS(g)
- S(g);N_GUARD::QAB1(E)
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).