MESON Chess Problem Database
Problem Display
PID: 240697 (1B3Q2/1p1b2P1/1P1Pp1P1/2n1k2n/1N3R2/2P3PK/B7/8 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Thema Danicum, 1989
#2
12 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sxg3
- 2.Qf6#
- 1...Sxf4+
- 2.Qxf4#
- 1...Sf6
- 2.Qxf6#
- 1...Sxg7
- 2.Qxg7#
- 2.Qf6#
- 1...Ba4
- Tries
- 1.Kh2?
- 1...Sxg3
- 2.Qf6#
- 1...Sxf4
- 2.Qxf4#
- 1...Sxg7
- 2.Qxg7#
- 2.Qf6#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Sb3!
- 1...Sxg3
- 1.Kg4?
- 1...Sf6+
- 2.Qxf6#
- 1...Sxg3
- 2.Qf6#
- 1...Sxf4
- 2.Qxf4#
- 1...Sxg7
- 2.Qxg7#
- 2.Qf6#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sb3!
- 1...Sf6+
- 1.Kh4?
- 1...Sxg3
- 2.Qf6#
- 1...Sxf4
- 2.Qxf4#
- 1...Sxg7
- 2.Qxg7#
- 2.Qf6#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Sb3!
- 1...Sxg3
- 1.Sc6+?
- 1...Bxc6
- 2.d7#
- 1...bxc6!
- 1...Bxc6
- 1.Bb1?
- 1...Sxf4+
- 2.Qxf4#
- 2.gxf4#
- 1...Sxg3
- 2.Qf6#
- 1...Sxg7
- 2.Qxg7#
- 2.Qf6#
- 1...Sb3
- 2.Re4#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sa4
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sa6
- 2.Re4#
- 1...Sf6
- 2.Qxf6#
- 1...Sd3!
- 1...Sxf4+
- 1.Bb3?
- 1...Sxf4+
- 2.Qxf4#
- 1...Sxg3
- 2.Qf6#
- 1...Sxg7
- 2.Qxg7#
- 2.Qf6#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Sxb3!
- 1...Sxf4+
- 1.Bd5?
- 1...Sxf4+
- 2.Qxf4#
- 2.gxf4#
- 1...Sxg3
- 2.Qf6#
- 1...Sxg7
- 2.Qxg7#
- 2.Qf6#
- 1...Sb3
- 2.Re4#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Re4#
- 1...Sa4
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sa6
- 2.Re4#
- 1...Sf6
- 2.Qxf6#
- 1...exd5+!
- 1...Sxf4+
- 1.Bc7?
- 1...Sxf4+
- 2.Qxf4#
- 1...Sxg3
- 2.Qf6#
- 1...Sxg7
- 2.Qxg7#
- 2.Qf6#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Sb3!
- 1...Sxf4+
- 1.Rd4?
- 1...Sf4+
- 2.Qxf4#
- 2.gxf4#
- 1...Sxg3
- 2.Qf4#
- 1...Sxg7
- 2.Qf4#
- 1...Sb3
- 2.Sd3#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sf6!
- 1...Sf4+
- 1.Re4+?
- 1...Sxe4
- 2.Sd3#
- 1...Kxe4!
- 1...Sxe4
- 1.Qe7?
- threat
- 2.Qg5#
- 1...Sxg3
- 2.Qf6#
- 1...Sxg7
- 2.Qf6#
- 2.Qxg7#
- 1...Se4
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Sxf4+!
- threat
- 1.Qf7?
- 1...Sxf4+
- 2.Qxf4#
- 1...Sxg3
- 2.Qf6#
- 1...Sxg7
- 2.Qf6#
- 2.Qxg7#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Sb3!
- 1...Sxf4+
- 1.Qd8?
- threat
- 2.Qg5#
- 1...Sxg3
- 2.Qf6#
- 1...Sxg7
- 2.Qf6#
- 1...Se4
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Sxf4+!
- threat
- 1.c4?
- 1...Sxf4+
- 2.Qxf4#
- 1...Sxg3
- 2.Qf6#
- 1...Sxg7
- 2.Qxg7#
- 2.Qf6#
- 1...Sb3
- 2.Sd3#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Se4!
- 1...Sxf4+
- 1.g8Q?
- 1...Sxf4+
- 2.Qxf4#
- 1...Sxg3
- 2.Qf6#
- 2.Qgg7#
- 2.Qh8#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Sg7
- 2.Qfxg7#
- 2.Qf6#
- 2.Qgxg7#
- 1...Sb3!
- 1...Sxf4+
- 1.g8S?
- 1...Sxf4+
- 2.Qxf4#
- 1...Sxg3
- 2.Qf6#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Sg7
- 2.Qxg7#
- 2.Qf6#
- 1...Sb3!
- 1...Sxf4+
- 1.g8B?
- 1...Sxf4+
- 2.Qxf4#
- 1...Sxg3
- 2.Qf6#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Sg7
- 2.Qxg7#
- 2.Qf6#
- 1...Sb3!
- 1...Sxf4+
- 1.g8R?
- 1...Sxf4+
- 2.Qxf4#
- 1...Sxg3
- 2.Qf6#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Sg7
- 2.Qxg7#
- 2.Qf6#
- 1...Sb3!
- 1...Sxf4+
- 1.Kh2?
- Keys
- 1.Bc4!
- 1...Sxf4+
- 2.Qxf4#
- 1...Sxg3
- 2.Qf6#
- 1...Sxg7
- 2.Qxg7#
- 2.Qf6#
- 1...Sb3
- 2.Sd3#
- 1...Ba4
- 2.d7#
- 1...Bb5
- 2.d7#
- 1...Bc6
- 2.d7#
- 1...Bc8
- 2.d7#
- 1...Be8
- 2.d7#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Sxf4+
- 1.Bc4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD,XP(C)::QAB1(L)
- S(c);CHECK,OGATE,XR(F)::QAB1(L),XS(c)
- S(c);N_GUARD::QAB1(L),XS(c)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- S(c);N_GUARD,XP(C)::QAB1(L)
- S(c);OGATE,XR(F)::QAB1(L),XS(c)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(a);
- Try
- K(D);S_FLIGHT
- Vars
- S(c);CHECK,N_GUARD::QAB1(L),XS(c)
- S(c);N_GUARD,XP(C)::QAB1(L)
- S(c);OGATE,XR(F)::QAB1(L),XS(c)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- Refutation
- S(a);
- Try
- K(D);P-FLIGHT
- Vars
- S(c);N_GUARD,XP(C)::QAB1(L)
- S(c);OGATE,XR(F)::QAB1(L),XS(c)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(a);
- Try
- S(E);CHECK
- Vars
- B(f);OGATE,XS(E)::B(K)+P(H)
- Refutation
- P(e);XS(E)
- Try
- B(A);
- Vars
- S(c);N_GUARD,XP(C)::QAB1(L)
- S(a);N_GUARD::R1(F)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::R1(F),XS(a)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(a);
- Try
- B(A);
- Vars
- S(c);CHECK,OGATE,XR(F)::QAB1(L),XS(c)
- S(c);N_GUARD,XP(C)::QAB1(L)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(a);XB(A)
- Try
- B(A);
- Vars
- S(c);N_GUARD,XP(C)::QAB1(L)
- S(a);N_GUARD::R1(F)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::R1(F),XS(a)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- P(d);CHECK,XB(A)
- Try
- B(K);
- Vars
- S(c);CHECK,OGATE,XR(F)::QAB1(L),XS(c)
- S(c);N_GUARD,XP(C)::QAB1(L)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(a);
- Try
- R(F);
- Vars
- S(c);N_GUARD,XP(C)::QAB1(L)
- S(c);N_GUARD,XP(J)::QAB1(L)
- S(a);N_GUARD::S(E)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- Refutation
- S(c);
- Try
- R(F);CHECK
- Vars
- S(a);SBLOCK,XR(F)::S(E)
- Refutation
- K(b);P-FLIGHT,XR(F)
- Try
- Q(L);P_PINP(d)
- Threat
- QAR2(L)
- Vars
- S(c);N_GUARD,XP(C)::QAB1(L)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(c);CHECK,XR(F)
- Try
- Q(L);
- Vars
- S(c);CHECK,OGATE,XR(F)::QAB1(L),XS(c)
- S(c);N_GUARD,XP(C)::QAB1(L)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(a);
- Try
- Q(L);
- Threat
- QAR2(L)
- Vars
- S(c);N_GUARD,XP(C)::QAB1(L)
- S(c);N_GUARD,XP(J)::QAB1(L)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(c);CHECK,XR(F)
- Try
- P(B);
- Vars
- S(c);CHECK,OGATE,XR(F)::QAB1(L),XS(c)
- S(c);N_GUARD,XP(C)::QAB1(L)
- S(a);N_GUARD::S(E)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(a);
- Try
- P(J);
- Vars
- S(c);CHECK,OGATE,XR(F)::QAB1(L),XS(c)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(a);
- Try
- P(J);
- Vars
- S(c);CHECK,OGATE,XR(F)::QAB1(L),XS(c)
- S(c);N_GUARD,XP(C)::QAB1(L)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(a);
- Try
- P(J);
- Vars
- S(c);CHECK,OGATE,XR(F)::QAB1(L),XS(c)
- S(c);N_GUARD,XP(C)::QAB1(L)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(a);
- Try
- P(J);
- Vars
- S(c);CHECK,OGATE,XR(F)::QAB1(L),XS(c)
- S(c);N_GUARD,XP(C)::QAB1(L)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD::QAB1(L),XS(c)
- Refutation
- S(a);
- Try
- Actual
- B(A);
- Vars
- S(c);CHECK,OGATE,XR(F)::QAB1(L),XS(c)
- S(c);N_GUARD,XP(C)::QAB1(L)
- S(a);N_GUARD::S(E)
- B(f);OGATE::B(K)+P(H)
- S(a);N_GUARD::S(E),XS(a)
- S(c);N_GUARD::QAB1(L),XS(c)
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).