MESON Chess Problem Database
Problem Display
PID: 93228 (2Q1Rq2/7B/8/2Np1n2/1K1k4/R3N3/8/4n3 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Pedersen, Eigil Palle
Arbejder-Skak, 1943
#2
7 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxc5+
- 2.Qxc5#
- 1...Qd6
- 2.Sxf5#
- 1...Qh6
- 2.Sxf5#
- 1...Qg7
- 2.Sxf5#
- 1...Qg8
- 2.Sxf5#
- 1...Qh8
- 2.Sxf5#
- 1...Sc2+
- 2.Sxc2#
- 1...Sg2
- 2.Sc2#
- 2.Rd3#
- 1...Sd3+
- 2.Rxd3#
- 1...Sf3
- 2.Sc2#
- 2.Rd3#
- 1...Sd6
- 2.Sb3#
- 1...Qxc5+
- Tries
- 1.Qe6?
- threat
- 2.Qxd5#
- 2.Qe5#
- 1...Sc2+
- 2.Sxc2#
- 1...Sd3+
- 2.Rxd3#
- 1...Qxe8
- 2.Sxf5#
- 2.Qxd5#
- 1...Sxe3
- 2.Qxe3#
- 2.Qe5#
- 1...Qd6
- 2.Sxf5#
- 1...Qe7
- 2.Sxf5#
- 2.Qxd5#
- 1...Qg7
- 2.Sxf5#
- 2.Qxd5#
- 1...Qf6
- 2.Qxd5#
- 2.Qxf6#
- 1...Qf7
- 2.Qe5#
- 1...Qg8
- 2.Sxf5#
- 2.Qe5#
- 2.Qf6#
- 1...Qh8
- 2.Sxf5#
- 2.Qxd5#
- 1...Sf3
- 2.Sc2#
- 2.Rd3#
- 2.Qxd5#
- 1...Se7
- 2.Sb3#
- 1...Qxc5+!
- threat
- 1.Qb8?
- threat
- 2.Qf4#
- 2.Qe5#
- 1...Sc2+
- 2.Sxc2#
- 1...Sd3+
- 2.Rxd3#
- 1...Qxe8
- 2.Sxf5#
- 1...Sxe3
- 2.Qe5#
- 1...Qd6
- 2.Sxf5#
- 1...Qh6
- 2.Sxf5#
- 2.Qe5#
- 1...Qe7
- 2.Sxf5#
- 1...Qg7
- 2.Sxf5#
- 2.Qf4#
- 1...Qf6
- 2.Qf4#
- 1...Qh8
- 2.Sxf5#
- 2.Qf4#
- 1...Sg2
- 2.Sc2#
- 2.Rd3#
- 2.Qe5#
- 1...Sf3
- 2.Sc2#
- 2.Rd3#
- 2.Qf4#
- 1...Sg3
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Sd6
- 2.Sb3#
- 1...Sh6
- 2.Qe5#
- 1...Se7
- 2.Se6#
- 1...Sg7
- 2.Qe5#
- 1...Qxc5+!
- threat
- 1.Qe6?
- Keys
- 1.Qc7!
- threat
- 2.Qf4#
- 2.Qe5#
- 1...Qxc5+
- 2.Qxc5#
- 1...Sc2+
- 2.Sxc2#
- 1...Sd3+
- 2.Rxd3#
- 1...Qxe8
- 2.Sxf5#
- 1...Sxe3
- 2.Qe5#
- 1...Qd6
- 2.Sxf5#
- 1...Qh6
- 2.Sxf5#
- 2.Qe5#
- 1...Qe7
- 2.Sxf5#
- 1...Qg7
- 2.Sxf5#
- 2.Qf4#
- 1...Qf6
- 2.Qf4#
- 1...Qh8
- 2.Sxf5#
- 2.Qf4#
- 1...Sg2
- 2.Sc2#
- 2.Rd3#
- 2.Qe5#
- 1...Sf3
- 2.Sc2#
- 2.Rd3#
- 2.Qf4#
- 1...Sg3
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Sd6
- 2.Sb3#
- 1...Sh6
- 2.Qe5#
- 1...Se7
- 2.Se6#
- 1...Sg7
- 2.Qe5#
- threat
- 1.Qc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 4
- Sets
- Q(e);CHECK,OGATE,XS(D)::QAB1(F),XQ(e)
- Q(e);N_GUARD::S(B),XS(d)
- Q(e);N_GUARD,N_PINS(D)::S(B),XS(d)
- S(a);CHECK,N_GUARD::S(B),XS(a)
- S(a);CHECK,N_GUARD::R1(A),XS(a)
- S(d);N_PINS(D)::S(D)
- Tries
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(a);CHECK,N_GUARD::S(B),XS(a)
- S(a);CHECK,N_GUARD::R1(A),XS(a)
- Q(e);N_GUARD::S(B),XS(d)
- Q(e);N_PINS(D)::QAB1(F)
- S(d);N_PINS(D)::S(D)
- Refutation
- Q(e);CHECK,XS(D)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(a);CHECK,N_GUARD::S(B),XS(a)
- S(a);CHECK,N_GUARD::R1(A),XS(a)
- Q(e);N_GUARD,N_PINS(D),XR(G)::S(B),XS(d)
- S(d);XS(B)::QAB1(F)
- Q(e);N_GUARD::S(B),XS(d)
- Q(e);N_PINS(D)::QAR2(F)
- S(d);::QAB1(F)
- S(d);N_PINS(D)::S(D)
- Refutation
- Q(e);CHECK,XS(D)
- Try
- Actual
- Q(F);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,OGATE,XS(D)::QAB1(F),XQ(e)
- S(a);CHECK,N_GUARD::S(B),XS(a)
- S(a);CHECK,N_GUARD::R1(A),XS(a)
- Q(e);N_GUARD,N_PINS(D),XR(G)::S(B),XS(d)
- S(d);XS(B)::QAB1(F)
- Q(e);N_GUARD::S(B),XS(d)
- Q(e);N_PINS(D)::QAR2(F)
- S(d);::QAB1(F)
- S(d);N_PINS(D)::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).