MESON Chess Problem Database
Problem Display
PID: 249015 (3b2K1/r4pBp/2Q1P1p1/1np1N1kr/6Pp/3pP1nP/5N2/3q4 w - - 0 1)
Blikeng, Bjarne
Thema Danicum, 1988
#2
9 + 13
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc2
- 2.Sf3#
- 1...Qb3
- 2.Sf3#
- 1...Qf3
- 2.Sxf3#
- 1...Qa4
- 2.Sf3#
- 1...Qa1
- 2.Sf3#
- 1...Qb1
- 2.Sf3#
- 1...Qc1
- 2.Sf3#
- 1...Qe1
- 2.Sf3#
- 1...Qf1
- 2.Sf3#
- 1...Qg1
- 2.Sf3#
- 1...Qd2
- 2.Sf3#
- 1...Ra1
- 2.Sxf7#
- 1...Ra2
- 2.Sxf7#
- 1...Ra3
- 2.Sxf7#
- 1...Ra4
- 2.Sxf7#
- 1...Ra5
- 2.Sxf7#
- 1...Ra6
- 2.Sxf7#
- 1...Ra8
- 2.Sxf7#
- 1...Bc7
- 2.Sxf7#
- 1...Be7
- 2.Sxf7#
- 1...Sf1
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Se2
- 2.Se4#
- 2.Sf3#
- 1...Se4
- 2.Sxe4#
- 1...Sf5
- 2.Se4#
- 1...Sc7
- 2.Sxf7#
- 1...Qc2
- Tries
- 1.Qf3?
- threat
- 2.Qf4#
- 1...Qxf3
- 2.Sxf3#
- 1...Ra4
- 2.Sxf7#
- 1...Se2
- 2.Se4#
- 1...Qa4!
- threat
- 1.Qd5?
- threat
- 2.Sf3#
- 2.Sxf7#
- 1...fxe6
- 2.Sf3#
- 2.Sf7#
- 1...Qf3
- 2.Sxf3#
- 2.Sxf7#
- 1...Sf5
- 2.Se4#
- 1...f6
- 2.Sf3#
- 2.Sf7#
- 1...f5!
- threat
- 1.Qxc5?
- threat
- 2.Sf3#
- 2.Sxf7#
- 1...fxe6
- 2.Sf3#
- 2.Sf7#
- 1...Qf3
- 2.Sxf3#
- 2.Sxf7#
- 1...Sf5
- 2.Se4#
- 1...f6
- 2.Sf3#
- 2.Sf7#
- 1...f5!
- threat
- 1.e7?
- threat
- 2.Sxf7#
- 2.Qf6#
- 1...Qxg4
- 2.Qf6#
- 1...Rxe7
- 2.Qf6#
- 1...Bxe7
- 2.Sxf7#
- 1...f5
- 2.Sf7#
- 2.Qf6#
- 1...Qb3
- 2.Sf3#
- 2.Qf6#
- 1...Qf3
- 2.Sxf3#
- 1...Ra6
- 2.Sxf7#
- 1...Se4
- 2.Sxe4#
- 2.Sxf7#
- 1...f6
- 2.Sf7#
- 2.Qxf6#
- 1...Sd6!
- threat
- 1.Qf3?
- Keys
- 1.Qe4!
- threat
- 2.Qf4#
- 1...Qxg4
- 2.Qxg4#
- 1...Sxe4
- 2.Sxe4#
- 1...Qf3
- 2.Sxf3#
- 1...Qa4
- 2.Sf3#
- 1...Ra4
- 2.Sxf7#
- 1...Se2
- 2.Sf3#
- threat
- 1.Qe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 21
- Sets
- Q(a);N_GUARD::S(E)
- Q(a);N_GUARD::S(E),XQ(a)
- R(j);N_GUARD::S(E),XP(k)
- B(m);S_CUTR(j)::S(E),XP(k)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- S(e);S_CUTR(j)::S(E),XP(k)
- Tries
- Try
- Q(F);
- Threat
- QAB1(F)
- Vars
- Q(a);XQ(F)::S(E),XQ(a)
- R(j);N_GUARD::S(E),XP(k)
- S(c);N_GUARD::S(A)
- Refutation
- Q(a);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::S(A)
- Refutation
- P(k);
- Try
- Q(F);XP(f)
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::S(A)
- Refutation
- P(k);
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(D)::QAB1(F)
- R(j);XP(G)::QAB1(F)
- B(m);XP(G)::S(E),XP(k)
- Q(a);N_GUARD::S(E),XQ(a)
- R(j);::S(E),XP(k)
- Refutation
- S(e);
- Try
- Actual
- Q(F);
- Threat
- QAB1(F)
- Vars
- Q(a);OGATE,XP(D)::QAR1(F),XQ(a)
- S(c);XQ(F)::S(A),XS(c)
- Q(a);N_GUARD::S(E),XQ(a)
- Q(a);N_GUARD::S(E)
- R(j);N_GUARD::S(E),XP(k)
- S(c);S_CUTQ(a)::S(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).