MESON Chess Problem Database
Problem Display
PID: 233945 (3r4/2bR4/1qR5/Q3p3/P1Npn3/3k4/2pP4/2n1K2B w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Skakbladet, 1947
#2
8 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxa5
- 2.Sb2#
- 1...Qc5
- 2.Sb2#
- 1...Qa7
- 2.Sb2#
- 1...Qb2
- 2.Sxb2#
- 1...Qa6
- 2.Sb2#
- 1...Qxc6
- 2.Sb2#
- 1...Sb3
- 2.Sb2#
- 1...Sxd2
- 2.Qxd2#
- 1...Sf2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sg3
- 2.Qc3#
- 1...Sc5
- 2.Qc3#
- 1...Sg5
- 2.Qc3#
- 1...Sd6
- 2.Sxe5#
- 1...Sf6
- 2.Qc3#
- 1...Qxa5
- Tries
- 1.Sxb6?
- threat
- 2.Qb5#
- 2.Qa6#
- 1...Sxd2
- 2.Rc3#
- 2.Qxd2#
- 2.Qc3#
- 1...Ra8
- 2.Qb5#
- 1...Sc3
- 2.Rxc3#
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb5#
- 1...Sd6!
- threat
- 1.Rxb6?
- threat
- 2.Sb2#
- 1...Kxc4
- 2.Qb5#
- 1...Sxd2!
- threat
- 1.Qb4?
- threat
- 2.Sb2#
- 1...Sxd2
- 2.Qxd2#
- 1...Qxb4!
- threat
- 1.Qa6?
- threat
- 2.Sb2#
- 2.Sxe5#
- 2.Sxb6#
- 1...Qxa6
- 2.Sb2#
- 1...Qxc6
- 2.Sb2#
- 2.Sxe5#
- 1...Qb1
- 2.Sb2#
- 2.Sxe5#
- 1...Qa5
- 2.Sb2#
- 2.Sxa5#
- 2.Sxe5#
- 1...Qc5
- 2.Sb2#
- 2.Sxe5#
- 1...Qa7
- 2.Sb2#
- 2.Sxe5#
- 1...Qb2
- 2.Sxb2#
- 2.Sxe5#
- 1...Qb3
- 2.Sb2#
- 2.Sxe5#
- 1...Qb4
- 2.Sb2#
- 2.Sxe5#
- 1...Qb5
- 2.Sb2#
- 1...Qb7
- 2.Sb2#
- 2.Sxe5#
- 1...Qb8
- 2.Sb2#
- 2.Sxe5#
- 2.Sb6#
- 1...Ra8
- 2.Sb2#
- 2.Sxe5#
- 1...Sc3
- 2.Sb2#
- 2.Sxe5#
- 1...Sc5
- 2.Sb2#
- 2.Sxe5#
- 1...Sd6
- 2.Sb2#
- 2.Sxe5#
- 1...Sxd2!
- threat
- 1.Sxb6?
- Keys
- 1.Qxe5!
- threat
- 2.Bxe4#
- 2.Qxe4#
- 1...Qxc6
- 2.Sb2#
- 2.Qxd4#
- 1...Bxe5
- 2.Sxe5#
- 1...Sxd2
- 2.Qe3#
- 1...Qc5
- 2.Sb2#
- 1...Sc5
- 2.Qxd4#
- 1...Re8
- 2.Bxe4#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Sg3
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sd6
- 2.Qg3#
- 1...Sf6
- 2.Qe3#
- threat
- 1.Qxe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 8
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(g);N_GUARD,P_PINP(C),XQ(F)::S(E)
- Q(g);N_GUARD::S(E)
- Q(g);N_GUARD::S(E),XQ(g)
- Q(g);N_GUARD,XR(G)::S(E)
- S(a);S_CUTQ(g)::S(E)
- S(e);OGATE,XP(C)::QAR1(F),XS(e)
- S(e);N_GUARD::QAR1(F)
- S(e);N_GUARD::QAR1(F),XS(e)
- S(e);N_SPINP(d),S_CUTB(h)::S(E),XP(f)
- Tries
- Try
- S(E);XQ(g)
- Threat
- DUALS(2)
- Vars
- R(i);::QAB(F)
- Refutation
- S(e);N_SPINP(d)
- Try
- R(G);XQ(g)
- Threat
- S(E)
- Vars
- K(c);N_SPINP(d),OGATEB,S_FLIGHT,XS(E)::QAB1(F)
- Refutation
- S(e);XP(C)
- Try
- Q(F);
- Threat
- S(E)
- Vars
- S(e);OGATE,XP(C)::QAR1(F),XS(e)
- Refutation
- Q(g);P_PINP(C),XQ(F)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- Q(g);XQ(F)::S(E)
- Q(g);::S(E)
- Refutation
- S(e);XP(C)
- Try
- Actual
- Q(F);XP(f)
- Threat
- DUALS(2)
- Vars
- B(h);XQ(F)::S(E),XB(h)
- S(e);OGATE,XP(C)::QAR1(F)
- Q(g);N_GUARD::S(E)
- S(e);S_CUTQ(g)::QAR1(F),XP(d)
- R(i);::B(B),XS(e)
- S(e);OGATE::QAR1(F)
- S(e);N_GUARD,N_SPINP(d),S_CUTB(h)::QAR(F)
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).