MESON Chess Problem Database
Problem Display
PID: 240726 (8/6R1/2n1RpB1/2QqN3/5k1K/2p2p2/8/8 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Thema Danicum, 1999
#2
6 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Sd3#
- 2.Rxf6#
- 1...Qb3
- 2.Sd3#
- 2.Rxf6#
- 1...Qc4
- 2.Rxf6#
- 1...Qxe6
- 2.Sd3#
- 1...Qd1
- 2.Rxf6#
- 1...Qd2
- 2.Rxf6#
- 1...Qd3
- 2.Sxd3#
- 1...Qxc5
- 2.Sd3#
- 1...Sd4
- 2.Sd3#
- 1...Sxe5
- 2.Rxf6#
- 1...fxe5
- 2.Rf6#
- 2.Rf7#
- 1...Qa2
- Tries
- 1.Bc2?
- threat
- 2.Sg6#
- 2.Rg4#
- 1...Qxe6
- 2.Sg6#
- 1...Qxc5
- 2.Sg6#
- 1...Qxe5
- 2.Rg4#
- 1...Sxe5
- 2.Rxf6#
- 1...fxe5
- 2.Rf6#
- 2.Rg4#
- 2.Rf7#
- 1...Qd3
- 2.Sxd3#
- 1...Qd4
- 2.Sg6#
- 1...Sd4
- 2.Sg6#
- 1...Se7
- 2.Rg4#
- 1...f2
- 2.Rg4#
- 1...f5
- 2.Sg6#
- 1...Qe4!
- threat
- 1.Bd3?
- threat
- 2.Sg6#
- 2.Rg4#
- 1...Qxe6
- 2.Sg6#
- 1...Qxd3
- 2.Sxd3#
- 1...Qxc5
- 2.Sg6#
- 1...Qxe5
- 2.Rg4#
- 1...Sxe5
- 2.Rxf6#
- 1...fxe5
- 2.Rf6#
- 2.Rg4#
- 2.Rf7#
- 1...Qd4
- 2.Sg6#
- 1...Sd4
- 2.Sg6#
- 1...Se7
- 2.Rg4#
- 1...f2
- 2.Rg4#
- 1...f5
- 2.Sg6#
- 1...Qe4!
- threat
- 1.Qd4+?
- 1...Qe4
- 2.Sd3#
- 2.Rxf6#
- 2.Qxe4#
- 1...Sxd4
- 2.Sd3#
- 1...Qxd4!
- 1...Qe4
- 1.Qxd5?
- threat
- 2.Sd3#
- 2.Qxf3#
- 2.Qe4#
- 1...Sxe5
- 2.Qe4#
- 2.Qd4#
- 1...fxe5
- 2.Qe4#
- 1...Sb4
- 2.Qxf3#
- 2.Qe4#
- 2.Qd4#
- 1...Sd4
- 2.Sd3#
- 2.Qe4#
- 2.Qxd4#
- 1...f2
- 2.Sd3#
- 2.Qf3#
- 2.Qe4#
- 1...f5
- 2.Sd3#
- 2.Qxf3#
- 1...Ke3!
- threat
- 1.Bc2?
- Keys
- 1.Bh7!
- threat
- 2.Rg4#
- 1...Qxe6
- 2.Sd3#
- 1...Qxc5
- 2.Sd3#
- 1...Sxe5
- 2.Rxf6#
- 1...Qd4
- 2.Sg6#
- 1...Sd4
- 2.Sd3#
- 1...f5
- 2.Sg6#
- threat
- 1.Bh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- Q(d);::R(D),XP(f)
- Q(d);N_GUARD,XR(D)::S(C)
- Q(d);N_GUARD::S(C),XQ(d)
- Q(d);N_GUARD,XQ(B)::S(C)
- S(e);S_CUTQ(d)::S(C)
- S(e);SBLOCK,XS(C)::R(D),XP(f)
- Tries
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- Q(d);XR(D)::S(C)
- Q(d);XQ(B)::S(C)
- Q(d);XS(C)::R1(F)
- S(e);SBLOCK,XS(C)::R(D),XP(f)
- Q(d);N_GUARD::S(C),XQ(d)
- Q(d);::S(C)
- S(e);::S(C)
- S(e);::R1(F)
- P(b);::R1(F)
- P(f);::S(C)
- Refutation
- Q(d);
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- Q(d);XR(D)::S(C)
- Q(d);XB(E)::S(C),XQ(d)
- Q(d);XQ(B)::S(C)
- Q(d);XS(C)::R1(F)
- S(e);SBLOCK,XS(C)::R(D),XP(f)
- Q(d);::S(C)
- S(e);::S(C)
- S(e);::R1(F)
- P(b);::R1(F)
- P(f);::S(C)
- Refutation
- Q(d);
- Try
- Q(B);CHECK
- Vars
- S(e);XQ(B)::S(C)
- Refutation
- Q(d);XQ(B)
- Try
- Q(B);XQ(d)
- Threat
- DUALS(3)
- Vars
- P(f);XS(C)::QAR1(B)
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- B(E);
- Threat
- R1(F)
- Vars
- Q(d);N_GUARD,XR(D)::S(C)
- Q(d);N_GUARD,XQ(B)::S(C)
- S(e);SBLOCK,XS(C)::R(D),XP(f)
- Q(d);::S(C)
- S(e);S_CUTQ(d)::S(C)
- P(f);SBLOCK::S(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).