MESON Chess Problem Database
Problem Display
PID: 251781 (3r3b/p1R4b/n7/Qp3pR1/2Pk4/3N1K2/N4p1B/3n1B2 w - - 0 1)
Karge, Fritz
Deutsche Schachzeitung, 1982
#2
9 + 10
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Be5
- 2.Bxe5#
- 1...Sb2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Se3
- 2.Qc3#
- 1...Sb4
- 2.Qxa7#
- 1...Sb8
- 2.Qxa7#
- 1...Be5
- Tries
- 1.Sdc1?
- threat
- 2.Sb3#
- 2.Qd2#
- 1...Sxc7
- 2.Sb3#
- 2.Qxa7#
- 1...bxc4
- 2.Rxc4#
- 2.Qd2#
- 1...Sb2
- 2.Sb3#
- 2.Qc3#
- 1...Sc3
- 2.Sb3#
- 2.Qxc3#
- 1...Sb4
- 2.Sb3#
- 2.Qxa7#
- 1...b4
- 2.Sb3#
- 1...f4
- 2.Sb3#
- 1...Sc5!
- threat
- 1.Sdb4?
- threat
- 2.Sc2#
- 1...Sxb4
- 2.Qxa7#
- 1...Sxc7
- 2.Qxa7#
- 1...f4
- 2.Sc6#
- 1...Se3!
- threat
- 1.Sc5?
- threat
- 2.Sb3#
- 2.Se6#
- 2.Qd2#
- 1...Sxc7
- 2.Sb3#
- 1...bxc4
- 2.Se6#
- 2.Qd2#
- 1...Rd6
- 2.Sb3#
- 2.Qd2#
- 1...Re8
- 2.Sb3#
- 2.Qd2#
- 1...Bg8
- 2.Sb3#
- 2.Qd2#
- 1...Sb2
- 2.Sb3#
- 2.Se6#
- 2.Qc3#
- 1...Sc3
- 2.Sb3#
- 2.Se6#
- 2.Qxc3#
- 1...Sb4
- 2.Sb3#
- 2.Se6#
- 1...b4
- 2.Sb3#
- 2.Se6#
- 1...f4
- 2.Sb3#
- 2.Se6#
- 1...Sxc5!
- threat
- 1.Qd2?
- threat
- 2.Sdc1#
- 2.Se1#
- 2.Sb2#
- 2.Sxf2#
- 2.Sdb4#
- 2.Sc5#
- 2.Se5#
- 2.Qf4#
- 1...Sxc7
- 2.Qf4#
- 1...bxc4
- 2.Sdc1#
- 2.Se1#
- 2.Sb2#
- 2.Sxf2#
- 2.Sdb4#
- 2.Sc5#
- 2.Se5#
- 1...Sc5
- 2.Sxc5#
- 1...Re8
- 2.Sdc1#
- 2.Se1#
- 2.Sb2#
- 2.Sxf2#
- 2.Sdb4#
- 2.Sc5#
- 2.Se5#
- 1...Be5
- 2.Sdc1#
- 2.Se1#
- 2.Sb2#
- 2.Sxf2#
- 2.Sdb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Bxe5#
- 1...Sb2
- 2.Sxb2#
- 2.Qc3#
- 2.Qe3#
- 2.Qf4#
- 2.Qxb2#
- 2.Qxf2#
- 1...Sc3
- 2.Sdc1#
- 2.Se1#
- 2.Sb2#
- 2.Sxf2#
- 2.Sdb4#
- 2.Sc5#
- 2.Se5#
- 2.Qxc3#
- 2.Qe3#
- 2.Qxf2#
- 1...Se3
- 2.Sdc1#
- 2.Se1#
- 2.Sb2#
- 2.Sxf2#
- 2.Sdb4#
- 2.Sc5#
- 2.Se5#
- 2.Qc3#
- 2.Qxe3#
- 2.Qb2#
- 1...Sb4
- 2.Sdxb4#
- 2.Qf4#
- 1...b4
- 2.Sdc1#
- 2.Se1#
- 2.Sb2#
- 2.Sxf2#
- 2.Sdxb4#
- 2.Sc5#
- 2.Se5#
- 2.Qf4#
- 1...f4!
- threat
- 1.Qb6+?
- 1...Sc5
- 2.Qxc5#
- 1...axb6!
- 1...Sc5
- 1.Qxa6?
- threat
- 2.Qxa7#
- 1...bxc4
- 2.Qxc4#
- 1...Rd6
- 2.Qxd6#
- 1...Ra8
- 2.Qd6#
- 1...Rb8
- 2.Qd6#
- 1...Rd5!
- threat
- 1.Sdc1?
- Keys
- 1.Se5!
- threat
- 2.Qd2#
- 1...Sxc7
- 2.Qxa7#
- 1...Sc5
- 2.Sc6#
- 1...Sb2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Qxa7#
- 1...b4
- 2.Sc6#
- 1...f4
- 2.Sc6#
- threat
- 1.Se5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- B(j);N_GUARD::B(C),XB(j)
- S(a);N_GUARD::QAB1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- S(f);OGATE::QAB(G),XP(g)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(d);::S(D)
- P(e);::S(D)
- Refutation
- S(f);
- Try
- S(D);
- Threat
- S(D)
- Vars
- S(f);OGATE,XS(D)::QAB(G),XP(g)
- S(f);OGATE,XR(I)::QAB(G),XP(g)
- P(e);::S(D)
- Refutation
- S(a);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- S(f);XR(I)::S(D)
- Refutation
- S(f);XS(D)
- Try
- Q(G);
- Threat
- DUALS(8)
- Vars
- S(f);XR(I)::QAR2(G)
- S(f);::QAR(G)+S(D),XS(f)
- Refutation
- P(e);
- Try
- Q(G);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAB1(G),XS(f)
- Refutation
- P(g);XQ(G)
- Try
- Q(G);XS(f)
- Threat
- QAB(G),XP(g)
- Vars
- P(d);OGATE,XP(F)::QAR1(G),XP(d)
- R(i);N_GUARD::QAR2(G),XR(i)
- R(i);N_GUARD::QAR2(G)
- Refutation
- R(i);
- Try
- Actual
- S(D);
- Threat
- QAR2(G)
- Vars
- S(f);OGATE,XR(I)::QAB(G),XP(g)
- S(f);SBLOCK::S(D)
- S(a);N_GUARD::QAB1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- S(f);OGATE::QAB(G),XP(g)
- P(d);::S(D)
- P(e);::S(D)
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).