MESON Chess Problem Database
Problem Display
PID: 240624 (1K6/8/R1PNn2Q/1NkP4/1p1nR3/1B2P3/8/8 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Thema Danicum, 1980
#2
10 + 4
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sxb5
- 2.Sb7#
- 1...Sxc6+
- 2.Rxc6#
- 1...Sf4
- 2.exd4#
- 1...Sg5
- 2.exd4#
- 1...Sc7
- 2.exd4#
- 1...Sg7
- 2.exd4#
- 1...Sd8
- 2.exd4#
- 1...Sf8
- 2.exd4#
- 1...Sxb5
- Tries
- 1.Sc7?
- threat
- 2.Sb7#
- 1...Sxc6+
- 2.Rxc6#
- 1...Sxc7
- 2.exd4#
- 1...Sd8
- 2.exd4#
- 1...Kxd6!
- threat
- 1.Bc4?
- 1...Sxc6+
- 2.Rxc6#
- 1...Sxb5
- 2.Sb7#
- 1...Sc2
- 2.Sb7#
- 1...Se2
- 2.Sb7#
- 1...Sb3
- 2.Sb7#
- 1...Sf3
- 2.Sb7#
- 1...Sf5
- 2.Sb7#
- 1...Sf4
- 2.exd4#
- 1...Sg5
- 2.exd4#
- 1...Sc7
- 2.exd4#
- 1...Sg7
- 2.exd4#
- 1...Sd8
- 2.exd4#
- 1...Sf8
- 2.exd4#
- 1...b3!
- 1...Sxc6+
- 1.Re5?
- threat
- 2.dxe6#
- 1...Sxc6+
- 2.Rxc6#
- 2.dxc6#
- 1...Sxb5
- 2.Se4#
- 2.Sb7#
- 1...Sf4
- 2.exd4#
- 1...Sg5
- 2.exd4#
- 1...Sc7
- 2.exd4#
- 1...Sg7
- 2.exd4#
- 1...Sd8
- 2.exd4#
- 1...Sf8
- 2.exd4#
- 1...Sf3!
- threat
- 1.Qg5?
- 1...Sxc6+
- 2.Rxc6#
- 1...Sxb3
- 2.Rc4#
- 2.dxe6#
- 1...Sxb5
- 2.Sb7#
- 1...Sxg5
- 2.exd4#
- 1...Sc2
- 2.Rc4#
- 2.dxe6#
- 1...Se2
- 2.Rc4#
- 2.dxe6#
- 1...Sf3
- 2.Rc4#
- 1...Sf4
- 2.exd4#
- 1...Sc7
- 2.exd4#
- 1...Sg7
- 2.exd4#
- 1...Sd8
- 2.exd4#
- 1...Sf8
- 2.exd4#
- 1...Sf5!
- 1...Sxc6+
- 1.Qg7?
- threat
- 2.Qa7#
- 1...Sxc6+
- 2.Rxc6#
- 1...Sxb5
- 2.Sb7#
- 1...Sxg7
- 2.exd4#
- 1...Sc7
- 2.Qxd4#
- 2.exd4#
- 1...Sxb3!
- threat
- 1.Qh5?
- 1...Sxc6+
- 2.Rxc6#
- 1...Sxb3
- 2.Rc4#
- 2.dxe6#
- 1...Sxb5
- 2.Sb7#
- 1...Sc2
- 2.Rc4#
- 2.dxe6#
- 1...Se2
- 2.Rc4#
- 2.dxe6#
- 1...Sf3
- 2.Rc4#
- 1...Sf4
- 2.exd4#
- 1...Sg5
- 2.exd4#
- 1...Sc7
- 2.exd4#
- 1...Sg7
- 2.exd4#
- 1...Sd8
- 2.exd4#
- 1...Sf8
- 2.exd4#
- 1...Sf5!
- 1...Sxc6+
- 1.Qxe6?
- threat
- 2.exd4#
- 1...Sxc6+
- 2.Rxc6#
- 1...Sxb3
- 2.Rc4#
- 1...Sxb5
- 2.Sb7#
- 2.Rc4#
- 1...Sc2
- 2.Rc4#
- 1...Se2
- 2.Rc4#
- 1...Sf3
- 2.Rc4#
- 1...Sf5
- 2.Rc4#
- 1...Sxe6!
- threat
- 1.Qh7?
- threat
- 2.Qa7#
- 1...Sxc6+
- 2.Rxc6#
- 1...Sxb5
- 2.Sb7#
- 1...Sc7
- 2.exd4#
- 1...Sg7
- 2.exd4#
- 1...Sxb3!
- threat
- 1.c7?
- 1...Sc6+
- 2.Rxc6#
- 1...Sxb5
- 2.Sb7#
- 2.Rc6#
- 1...Sxc7
- 2.exd4#
- 1...Sc2
- 2.Rc6#
- 1...Se2
- 2.Rc6#
- 1...Sf3
- 2.Rc6#
- 1...Sf5
- 2.Rc6#
- 1...Sf4
- 2.exd4#
- 1...Sg5
- 2.exd4#
- 1...Sg7
- 2.exd4#
- 1...Sd8
- 2.exd4#
- 1...Sf8
- 2.exd4#
- 1...Sxb3!
- 1...Sc6+
- 1.Sc7?
- Keys
- 1.Qh1!
- 1...Sxc6+
- 2.Rxc6#
- 1...Sxb3
- 2.Rc4#
- 1...Sxb5
- 2.Sb7#
- 1...Sc2
- 2.Rc4#
- 1...Se2
- 2.Rc4#
- 1...Sf3
- 2.Qc1#
- 1...Sf5
- 2.Rc4#
- 2.Qc1#
- 1...Sf4
- 2.exd4#
- 1...Sg5
- 2.exd4#
- 1...Sc7
- 2.exd4#
- 1...Sg7
- 2.exd4#
- 1...Sd8
- 2.exd4#
- 1...Sf8
- 2.exd4#
- 1...Sxc6+
- 1.Qh1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(b);SBLOCK,XS(D)::S(H)
- S(b);CHECK,OGATE,XP(G)::R1(F),XS(b)
- S(d);N_GUARD::P(B),XS(b)
- Tries
- Try
- S(D);
- Threat
- S(H)
- Vars
- S(b);CHECK,OGATE,XP(G)::R1(F),XS(b)
- S(d);N_GUARD,XS(D)::P(B),XS(b)
- S(d);N_GUARD::P(B),XS(b)
- Refutation
- K(c);P_SPINS(d),S_FLIGHT,XS(H)
- Try
- B(A);
- Vars
- S(b);CHECK,OGATE,XP(G)::R1(F),XS(b)
- S(b);XS(D)::S(H)
- S(b);::S(H)
- S(d);N_GUARD::P(B),XS(b)
- Refutation
- P(a);
- Try
- R(C);
- Threat
- R(C)+P(E),XS(d)
- Vars
- S(d);N_GUARD::P(B),XS(b)
- Refutation
- S(b);
- Try
- Q(I);
- Vars
- S(b);CHECK,OGATE,XP(G)::R1(F),XS(b)
- S(b);SBLOCK,XS(D)::S(H)
- S(d);N_GUARD,XQ(I)::P(B),XS(b)
- S(b);OGATE::R1(C)
- S(d);N_GUARD::P(B),XS(b)
- Refutation
- S(b);
- Try
- Q(I);
- Threat
- QAB(I)
- Vars
- S(b);CHECK,OGATE,XP(G)::R1(F),XS(b)
- S(b);SBLOCK,XS(D)::S(H)
- S(d);N_GUARD,XQ(I)::P(B),XS(b)
- Refutation
- S(b);XB(A)
- Try
- Q(I);
- Vars
- S(b);CHECK,OGATE,XP(G)::R1(F),XS(b)
- S(b);SBLOCK,XS(D)::S(H)
- S(b);OGATE::R1(C)
- S(d);N_GUARD::P(B),XS(b)
- Refutation
- S(b);
- Try
- Q(I);XS(d)
- Threat
- P(B),XS(b)
- Vars
- S(b);CHECK,OGATE,XP(G)::R1(F),XS(b)
- S(b);OGATE,XB(A)::R1(C)
- S(b);OGATE::R1(C)
- Refutation
- S(b);XQ(I)
- Try
- Q(I);
- Threat
- QAB(I)
- Vars
- S(b);CHECK,OGATE,XP(G)::R1(F),XS(b)
- S(b);SBLOCK,XS(D)::S(H)
- S(d);N_GUARD::P(B),XS(b)
- Refutation
- S(b);XB(A)
- Try
- P(G);
- Vars
- S(b);CHECK,N_GUARD::R1(F),XS(b)
- S(d);N_GUARD,XP(G)::P(B),XS(b)
- S(b);N_GUARD::R1(F)
- S(d);N_GUARD::P(B),XS(b)
- Refutation
- S(b);XB(A)
- Try
- Actual
- Q(I);
- Vars
- S(b);CHECK,OGATE,XP(G)::R1(F),XS(b)
- S(b);OGATE,XB(A)::R1(C)
- S(b);SBLOCK,XS(D)::S(H)
- S(b);OGATE::R1(C)
- S(b);N_GUARD::QAR(I)
- S(d);N_GUARD::P(B),XS(b)
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).