MESON Chess Problem Database
Problem Display
PID: 240645 (6R1/3B1p1n/3Ppk2/2p3qP/2N4Q/4N2p/5P1K/5R2 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Thema Danicum, 1982
#2
10 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 1...Sf8
- Tries
- 1.Kxh3?
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 1...Qxh4+!
- 1...Sf8
- 1.Bc8?
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 1...Qxh4!
- 1...Sf8
- 1.Ra1?
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 1...Qxh4!
- 1...Sf8
- 1.Rb1?
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 1...Qxh4!
- 1...Sf8
- 1.Rc1?
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 1...Qxh4!
- 1...Sf8
- 1.Rd1?
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 1...Qxh4!
- 1...Sf8
- 1.Re1?
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 1...Qxh4!
- 1...Sf8
- 1.Rg1?
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 1...Qxh4!
- 1...Sf8
- 1.Rh1?
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 1...Qxh4!
- 1...Sf8
- 1.Rxg5?
- threat
- 2.Sg4#
- 2.Rg6#
- 2.Qf4#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 2.Rg6#
- 1...Sxg5!
- threat
- 1.Qd4+?
- 1...Qe5+
- 2.Qxe5#
- 1...e5
- 2.Sd5#
- 1...cxd4!
- 1...Qe5+
- 1.Qf4+?
- 1...Qf5
- 2.Sg4#
- 1...Qxf4+!
- 1...Qf5
- 1.f3?
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 1...Qxh4!
- 1...Sf8
- 1.h6?
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sg4#
- 2.Sd5#
- 1...Qxh4!
- 1...Sf8
- 1.Kxh3?
- Keys
- 1.Qg3!
- 1...Qxg3+
- 2.fxg3#
- 1...Qxe3
- 2.fxe3#
- 1...Qxh5
- 2.Qg7#
- 1...Qxg8
- 2.Qe5#
- 1...Qf4
- 2.Qxf4#
- 1...Qh4
- 2.Qe5#
- 2.Qg7#
- 1...Qh6
- 2.Qe5#
- 1...Qg4
- 2.Qe5#
- 1...Qd5
- 2.Qg7#
- 1...Qe5
- 2.Qxe5#
- 1...Qf5
- 2.Qg7#
- 1...Qg6
- 2.Qe5#
- 1...Qg7
- 2.Qf4#
- 2.Qe5#
- 2.Qxg7#
- 1...Sf8
- 2.Qxg5#
- 1...e5
- 2.Sd5#
- 1...Qxg3+
- 1.Qg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 0
- Sets
- S(g);N_GUARD::QAB1(F),XQ(c)
- Tries
- Try
- K(C);P-FLIGHT,XP(a)
- Vars
- S(g);N_GUARD::QAB1(F),XQ(c)
- Refutation
- Q(c);CHECK,N_SPINQ(c),XQ(F)
- Try
- B(I);
- Vars
- S(g);N_GUARD::QAB1(F),XQ(c)
- Refutation
- Q(c);N_SPINQ(c),XQ(F)
- Try
- R(A);
- Vars
- S(g);N_GUARD::QAB1(F),XQ(c)
- Refutation
- Q(c);N_SPINQ(c),XQ(F)
- Try
- R(A);
- Vars
- S(g);N_GUARD::QAB1(F),XQ(c)
- Refutation
- Q(c);N_SPINQ(c),XQ(F)
- Try
- R(A);
- Vars
- S(g);N_GUARD::QAB1(F),XQ(c)
- Refutation
- Q(c);N_SPINQ(c),XQ(F)
- Try
- R(A);
- Vars
- S(g);N_GUARD::QAB1(F),XQ(c)
- Refutation
- Q(c);N_SPINQ(c),XQ(F)
- Try
- R(A);
- Vars
- S(g);N_GUARD::QAB1(F),XQ(c)
- Refutation
- Q(c);N_SPINQ(c),XQ(F)
- Try
- R(A);
- Vars
- S(g);N_GUARD::QAB1(F),XQ(c)
- Refutation
- Q(c);N_SPINQ(c),XQ(F)
- Try
- R(A);
- Vars
- S(g);N_GUARD::QAB1(F),XQ(c)
- Refutation
- Q(c);N_SPINQ(c),XQ(F)
- Try
- R(J);XQ(c)
- Threat
- DUALS(3)
- Refutation
- S(g);P_SPINS(g),XR(J)
- Try
- Q(F);CHECK,N_PINQ(c)
- Vars
- Q(c);CHECK,N_GUARD,P_SPINQ(c)::QAB1(F),XQ(c)
- P(d);P_SPINP(d)::S(D)
- Refutation
- P(b);XQ(F)
- Try
- Q(F);CHECK,N_PINQ(c)
- Vars
- Q(c);P_SPINQ(c)::S(D)
- Refutation
- Q(c);CHECK,XQ(F)
- Try
- P(B);
- Vars
- S(g);N_GUARD::QAB1(F),XQ(c)
- Refutation
- Q(c);N_SPINQ(c),XQ(F)
- Try
- P(G);
- Vars
- S(g);N_GUARD::QAB1(F),XQ(c)
- Refutation
- Q(c);N_SPINQ(c),XQ(F)
- Try
- Actual
- Q(F);N_PINQ(c)
- Vars
- Q(c);CHECK,OGATE,XQ(F)::R(A)+P(B),XQ(c)
- Q(c);OGATE,XS(D)::R(A)+P(B),XQ(c)
- Q(c);OGATE,XP(G)::QAB1(F)
- Q(c);N_GUARD,XR(J)::QAB1(F)
- Q(c);N_GUARD,P_PINQ(F)::QAR2(F),XQ(c)
- Q(c);N_GUARD::QAB1(F)
- Q(c);OGATE::QAB1(F)
- Q(c);N_GUARD,P_PINQ(F)::QAB1(F),XQ(c)
- S(g);N_GUARD::QAB1(F),XQ(c)
- P(d);N_GUARD,S_CUTQ(c)::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).