MESON Chess Problem Database
Problem Display
PID: 248882 (3bn3/8/4RP1q/pN1k1B1p/1PNB4/1P5K/Q2p4/8 w - - 0 1)
Blikeng, Bjarne
2nd HM., Thema Danicum, 1986
#2
10 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qe3+
- 2.Sxe3#
- 1...Qg7
- 2.Se3#
- 1...Qf8
- 2.Se3#
- 1...Qxf6
- 2.Se3#
- 1...Qg6
- 2.Se3#
- 1...Qh7
- 2.Se3#
- 1...Qh8
- 2.Se3#
- 1...Bb6
- 2.Sxb6#
- 1...Bxf6
- 2.Sb6#
- 1...Be7
- 2.Sb6#
- 1...Sd6
- 2.Rxd6#
- 1...Sxf6
- 2.Rd6#
- 1...Sc7
- 2.Sb6#
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...d1S
- 2.Qg2#
- 1...d1R
- 2.Qg2#
- 1...axb4
- 2.Qa8#
- 1...Qe3+
- Tries
- 1.Sc7+?
- 1...Kxd4
- 2.Qa1#
- 2.Qb2#
- 1...Sxc7
- 2.Rd6#
- 1...Bxc7!
- 1...Kxd4
- 1.Bf2?
- threat
- 2.Sc3#
- 1...Qe3+
- 2.Sxe3#
- 1...Qxf6
- 2.Se3#
- 1...Bxf6
- 2.Sb6#
- 1...axb4
- 2.Qa8#
- 1...Sd6
- 2.Rxd6#
- 1...d1S!
- threat
- 1.Be3?
- threat
- 2.Sc3#
- 2.Qxd2#
- 1...Qxe3+
- 2.Sxe3#
- 1...Bxf6
- 2.Sb6#
- 1...axb4
- 2.Qxd2#
- 2.Qa8#
- 1...Sd6
- 2.Rxd6#
- 1...d1Q
- 2.Sc3#
- 1...d1S
- 2.Qd2#
- 2.Qg2#
- 1...d1B
- 2.Sc3#
- 2.Qd2#
- 1...d1R
- 2.Sc3#
- 2.Qg2#
- 1...Qf4
- 2.Sc3#
- 1...Bb6
- 2.Sxb6#
- 2.Sc3#
- 1...Qxf6!
- threat
- 1.Bc5?
- threat
- 2.Sc3#
- 1...Qe3+
- 2.Sxe3#
- 1...Qxf6
- 2.Se3#
- 1...Bxf6
- 2.Sb6#
- 1...Sd6
- 2.Rxd6#
- 1...d1S
- 2.Qg2#
- 1...axb4!
- threat
- 1.Be5?
- threat
- 2.Sc3#
- 1...Qe3+
- 2.Sxe3#
- 1...Sd6
- 2.Rxd6#
- 1...d1S
- 2.Qg2#
- 1...axb4!
- threat
- 1.Bb6?
- threat
- 2.Sc3#
- 1...Qe3+
- 2.Sxe3#
- 1...Qxf6
- 2.Se3#
- 1...Bxb6
- 2.Sxb6#
- 1...axb4
- 2.Qa8#
- 1...Sd6
- 2.Rxd6#
- 1...d1S
- 2.Qg2#
- 1...Bxf6!
- threat
- 1.Ba7?
- threat
- 2.Sc3#
- 1...Qe3+
- 2.Sxe3#
- 1...Qxf6
- 2.Se3#
- 1...Bxf6
- 2.Sb6#
- 1...Sd6
- 2.Rxd6#
- 1...d1S
- 2.Qg2#
- 1...Bb6
- 2.Sxb6#
- 1...axb4!
- threat
- 1.Qb1?
- threat
- 2.Qe4#
- 2.Qh1#
- 1...Qe3+
- 2.Sxe3#
- 1...Sxf6
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...d1Q
- 2.Qe4#
- 1...d1S
- 2.Qe4#
- 1...d1B
- 2.Qe4#
- 1...d1R
- 2.Qe4#
- 1...Qg5
- 2.Qe4#
- 1...Qg7
- 2.Se3#
- 2.Qe4#
- 1...Qg6
- 2.Se3#
- 2.Qe4#
- 1...Qf4!
- threat
- 1.Qc2?
- threat
- 2.Qe4#
- 1...Qe3+
- 2.Sxe3#
- 1...Sxf6
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Qf4!
- threat
- 1.Qxd2?
- threat
- 2.Sc3#
- 2.Be3#
- 2.Qg2#
- 1...Qe3+
- 2.Sxe3#
- 2.Bxe3#
- 1...Qxf6
- 2.Se3#
- 2.Sc3#
- 2.Be5#
- 2.Bxf6#
- 2.Qg2#
- 1...Bxf6
- 2.Sb6#
- 2.Sc3#
- 2.Qg2#
- 1...Sxf6
- 2.Sc3#
- 2.Be3#
- 2.Rd6#
- 1...axb4
- 2.Be3#
- 2.Qg2#
- 1...Sd6
- 2.Rxd6#
- 1...Qf4
- 2.Sc3#
- 1...Qg5
- 2.Sc3#
- 2.Be3#
- 1...Qg7
- 2.Se3#
- 2.Sc3#
- 2.Ba1#
- 2.Bg1#
- 2.Bb2#
- 2.Bf2#
- 2.Bc3#
- 2.Be3#
- 2.Bc5#
- 2.Be5#
- 2.Bb6#
- 2.Ba7#
- 1...Qg6
- 2.Se3#
- 2.Sc3#
- 2.Ba1#
- 2.Bg1#
- 2.Bb2#
- 2.Bf2#
- 2.Bc3#
- 2.Be3#
- 2.Bc5#
- 2.Be5#
- 2.Bb6#
- 2.Ba7#
- 1...Bb6
- 2.Sxb6#
- 2.Sc3#
- 2.Qg2#
- 1...Qxd2!
- threat
- 1.Qxa5?
- threat
- 2.Qa8#
- 1...Qe3+
- 2.Sxe3#
- 1...Sd6
- 2.Rxd6#
- 1...Qg7
- 2.Se3#
- 1...Qh7
- 2.Se3#
- 1...Sc7
- 2.Sb6#
- 2.Rd6#
- 1...Bxa5!
- threat
- 1.Sc7+?
- Keys
- 1.Bg1!
- threat
- 2.Sc3#
- 1...Qe3+
- 2.Sxe3#
- 1...Qxf6
- 2.Se3#
- 1...Bxf6
- 2.Sb6#
- 1...axb4
- 2.Qa8#
- 1...Sd6
- 2.Rxd6#
- 1...d1S
- 2.Qg2#
- threat
- 1.Bg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- Q(e);CHECK,N_GUARD::S(E),XQ(e)
- Q(e);N_GUARD::S(E)
- Q(e);N_GUARD,XP(J)::S(E)
- B(f);N_GUARD::S(E),XB(f)
- B(f);N_GUARD,XP(J)::S(E)
- B(f);N_GUARD::S(E)
- S(g);N_GUARD::R1(I),XS(g)
- S(g);N_GUARD,XP(J)::R1(I)
- S(g);N_GUARD::R1(I)
- P(a);OGATE::QAB(A)
- P(b);OGATE,XP(D)::QAB(A)
- Tries
- Try
- S(G);CHECK
- Vars
- S(g);XS(G)::R1(I)
- Refutation
- B(f);XS(G)
- Try
- B(F);
- Threat
- S(G)
- Vars
- Q(e);CHECK,N_GUARD::S(E),XQ(e)
- Q(e);N_GUARD,XP(J)::S(E)
- B(f);N_GUARD,XP(J)::S(E)
- P(b);OGATE,XP(D)::QAB(A)
- S(g);N_GUARD::R1(I),XS(g)
- Refutation
- P(a);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,XB(F)::S(E),XQ(e)
- B(f);N_GUARD,XP(J)::S(E)
- S(g);N_GUARD::R1(I),XS(g)
- P(a);::S(G)
- Q(e);::S(G)
- Refutation
- Q(e);XP(J)
- Try
- B(F);
- Threat
- S(G)
- Vars
- Q(e);CHECK,N_GUARD::S(E),XQ(e)
- Q(e);N_GUARD,XP(J)::S(E)
- B(f);N_GUARD,XP(J)::S(E)
- S(g);N_GUARD::R1(I),XS(g)
- P(a);OGATE::QAB(A)
- Refutation
- P(b);XP(D)
- Try
- B(F);
- Threat
- S(G)
- Vars
- Q(e);CHECK,N_GUARD::S(E),XQ(e)
- S(g);N_GUARD::R1(I),XS(g)
- P(a);OGATE::QAB(A)
- Refutation
- P(b);XP(D)
- Try
- B(F);
- Threat
- S(G)
- Vars
- Q(e);CHECK,N_GUARD::S(E),XQ(e)
- Q(e);N_GUARD,XP(J)::S(E)
- B(f);XB(F)::S(E),XB(f)
- P(b);OGATE,XP(D)::QAB(A)
- S(g);N_GUARD::R1(I),XS(g)
- P(a);OGATE::QAB(A)
- Refutation
- B(f);XP(J)
- Try
- B(F);
- Threat
- S(G)
- Vars
- Q(e);CHECK,N_GUARD::S(E),XQ(e)
- Q(e);N_GUARD,XP(J)::S(E)
- B(f);N_GUARD,XP(J)::S(E)
- S(g);N_GUARD::R1(I),XS(g)
- P(a);OGATE::QAB(A)
- B(f);N_GUARD::S(E),XB(f)
- Refutation
- P(b);XP(D)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,N_GUARD::S(E),XQ(e)
- S(g);N_GUARD,XP(J)::R1(I)
- S(g);N_GUARD::R1(I),XS(g)
- P(a);::QAB1(A)
- Q(e);::QAB1(A)
- Refutation
- Q(e);
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- Q(e);CHECK,N_GUARD::S(E),XQ(e)
- S(g);N_GUARD,XP(J)::R1(I)
- S(g);N_GUARD::R1(I),XS(g)
- Refutation
- Q(e);
- Try
- Q(A);XP(a)
- Threat
- DUALS(3)
- Vars
- S(g);N_GUARD::R1(I),XS(g)
- Q(e);::S(G)
- Refutation
- Q(e);XQ(A)
- Try
- Q(A);XP(b)
- Threat
- QAB(A)
- Vars
- Q(e);CHECK,N_GUARD::S(E),XQ(e)
- S(g);N_GUARD::R1(I),XS(g)
- Q(e);N_GUARD::S(E)
- Refutation
- B(f);XQ(A)
- Try
- Actual
- B(F);
- Threat
- S(G)
- Vars
- Q(e);CHECK,N_GUARD::S(E),XQ(e)
- Q(e);N_GUARD,XP(J)::S(E)
- B(f);N_GUARD,XP(J)::S(E)
- P(b);OGATE,XP(D)::QAB(A)
- S(g);N_GUARD::R1(I),XS(g)
- P(a);OGATE::QAB(A)
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).