MESON Chess Problem Database
Problem Display
PID: 235329 (8/P7/5PpK/2PpB1Qp/N3k2r/rN1ppn2/2pq3p/7B w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Deutsche Schachzeitung, 1975
#2
9 + 12
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sc3#
- 1...Qc3
- 2.Sxc3#
- 1...Qd1
- 2.Sc3#
- 1...Qe2
- 2.Sc3#
- 1...Qf2
- 2.Sc3#
- 1...Qg2
- 2.Sc3#
- 1...Rh3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...e2
- 2.Sxd2#
- 1...d4
- 2.a8Q#
- 2.a8B#
- 1...Qc1
- Tries
- 1.Kxg6?
- threat
- 2.Qf5#
- 1...d4
- 2.a8Q#
- 2.a8B#
- 1...Qg2
- 2.Sc3#
- 1...Rf4
- 2.Qxf4#
- 1...e2
- 2.Sxd2#
- 1...Rg4!
- threat
- 1.Ba1?
- threat
- 2.Qe5#
- 1...Qc3
- 2.Sxc3#
- 1...Qg2
- 2.Sc3#
- 1...e2
- 2.Sxd2#
- 1...d4
- 2.a8Q#
- 2.a8B#
- 1...Rxa1!
- threat
- 1.Bc3?
- threat
- 2.Qe5#
- 1...Qxc3
- 2.Sxc3#
- 1...e2
- 2.Sxd2#
- 1...d4
- 2.a8Q#
- 2.a8B#
- 1...Qg2!
- threat
- 1.Bg3?
- threat
- 2.Qe5#
- 2.Qxg6#
- 1...Rxb3
- 2.Qe5#
- 1...Qc3
- 2.Sxc3#
- 2.Qxg6#
- 1...Qg2
- 2.Sc3#
- 2.Qxg6#
- 1...Rf4
- 2.Qxf4#
- 1...Rg4
- 2.Qe5#
- 1...d4
- 2.Qe5#
- 2.a8Q#
- 2.a8B#
- 1...e2!
- threat
- 1.Bd4?
- threat
- 2.Qe5#
- 1...Qg2
- 2.Sc3#
- 1...e2!
- threat
- 1.Bf4?
- threat
- 2.Qe5#
- 1...Qc3
- 2.Sxc3#
- 1...Qg2
- 2.Sc3#
- 1...Rxf4!
- threat
- 1.Bd6?
- threat
- 2.Qe5#
- 2.Qxg6#
- 1...Rxb3
- 2.Qe5#
- 1...Qc3
- 2.Sxc3#
- 2.Qxg6#
- 1...Qg2
- 2.Sc3#
- 1...Rf4
- 2.Qxf4#
- 2.Qe5#
- 1...Rg4
- 2.Qe5#
- 1...d4
- 2.Qe5#
- 2.a8Q#
- 2.a8B#
- 1...e2!
- threat
- 1.Bc7?
- threat
- 2.Qe5#
- 2.Qxg6#
- 1...Rxb3
- 2.Qe5#
- 1...Qc3
- 2.Sxc3#
- 2.Qxg6#
- 1...Qg2
- 2.Sc3#
- 1...Rf4
- 2.Qxf4#
- 2.Qe5#
- 1...Rg4
- 2.Qe5#
- 1...d4
- 2.Qe5#
- 2.a8Q#
- 2.a8B#
- 1...e2!
- threat
- 1.Bb8?
- threat
- 2.Qe5#
- 2.Qxg6#
- 1...Rxb3
- 2.Qe5#
- 1...Qc3
- 2.Sxc3#
- 2.Qxg6#
- 1...Qg2
- 2.Sc3#
- 1...Rf4
- 2.Qxf4#
- 2.Qe5#
- 1...Rg4
- 2.Qe5#
- 1...d4
- 2.Qe5#
- 2.a8Q#
- 2.a8B#
- 1...e2!
- threat
- 1.Kxg6?
- Keys
- 1.Bb2!
- threat
- 2.Qe5#
- 1...Qc3
- 2.Sxc3#
- 1...Qg2
- 2.Sc3#
- 1...e2
- 2.Sxd2#
- 1...d4
- 2.a8Q#
- 2.a8B#
- threat
- 1.Bb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(b);N_GUARD::S(C)
- Q(b);N_GUARD::S(C),XQ(b)
- Q(b);N_GUARD,N_SPINS(g)::S(C)
- R(i);N_GUARD::QAR1(F)
- R(i);N_GUARD::QAR1(F),XR(i)
- P(f);N_GUARD,P_PINQ(F)::S(B),XQ(b)
- P(j);::P=Q
- Tries
- Try
- K(H);P-FLIGHT,XP(l)
- Threat
- QAB1(F)
- Vars
- P(j);::P=Q
- Q(b);N_GUARD,N_SPINS(g),P_PINQ(F)::S(C)
- R(i);N_GUARD::QAR1(F),XR(i)
- P(f);N_GUARD::S(B),XQ(b)
- Refutation
- R(i);P_PINQ(F)
- Try
- B(E);
- Threat
- QAR1(F)
- Vars
- Q(b);N_GUARD::S(C),XQ(b)
- Q(b);N_GUARD,N_SPINS(g)::S(C)
- P(f);N_GUARD,P_PINQ(F)::S(B),XQ(b)
- P(j);::P=Q
- Refutation
- R(d);XB(E)
- Try
- B(E);
- Threat
- QAR1(F)
- Vars
- Q(b);XB(E)::S(C),XQ(b)
- P(f);N_GUARD,P_PINQ(F)::S(B),XQ(b)
- P(j);::P=Q
- Refutation
- Q(b);N_SPINS(g)
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- R(d);XS(B)::QAR1(F)
- R(i);N_GUARD::QAR1(F),XR(i)
- R(i);::QAR1(F)
- Refutation
- P(f);P_PINQ(F)
- Try
- B(E);
- Threat
- QAR1(F)
- Vars
- Q(b);N_GUARD,N_SPINS(g)::S(C)
- Refutation
- P(f);P_PINQ(F)
- Try
- B(E);
- Threat
- QAR1(F)
- Vars
- Q(b);N_GUARD::S(C),XQ(b)
- Q(b);N_GUARD,N_SPINS(g)::S(C)
- Refutation
- R(i);XB(E)
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- R(d);XS(B)::QAR1(F)
- Q(b);N_GUARD,N_SPINS(g)::S(C)
- R(i);::QAR1(F)
- Refutation
- P(f);P_PINQ(F)
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- R(d);XS(B)::QAR1(F)
- Q(b);N_GUARD,N_SPINS(g)::S(C)
- R(i);::QAR1(F)
- Refutation
- P(f);P_PINQ(F)
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- R(d);XS(B)::QAR1(F)
- Q(b);N_GUARD,N_SPINS(g)::S(C)
- R(i);::QAR1(F)
- Refutation
- P(f);P_PINQ(F)
- Try
- Actual
- B(E);
- Threat
- QAR1(F)
- Vars
- Q(b);N_GUARD::S(C),XQ(b)
- Q(b);N_GUARD,N_SPINS(g)::S(C)
- P(f);N_GUARD,P_PINQ(F)::S(B),XQ(b)
- P(j);::P=Q
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).