MESON Chess Problem Database
Problem Display
PID: 124300 (2BKn2Q/3R4/2pPp1n1/1Npk1N2/1r1p4/1P6/4R2b/8 w - - 0 1)
Larsen, ?
Source?, 0000
#2
9 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bg1
- 2.Qh1#
- 1...Bg3
- 2.Qh1#
- 1...Bf4
- 2.Qh1#
- 1...Be5
- 2.Qh1#
- 1...Bxd6
- 2.Qh1#
- 1...Sf4
- 2.Se7#
- 2.Re5#
- 2.Qe5#
- 1...Sh4
- 2.Se7#
- 1...Se5
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sf8
- 2.Se7#
- 1...Sxh8
- 2.Se7#
- 1...Sxd6
- 2.Sc7#
- 1...Sf6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sg7
- 2.Sc7#
- 1...d3
- 2.Sc3#
- 1...c4
- 2.Qxd4#
- 1...cxb5
- 2.Bb7#
- 1...exf5
- 2.Qg8#
- 1...e5
- 2.Qg8#
- 1...Bg1
- Tries
- 1.Se3+?
- 1...dxe3
- 2.Sc3#
- 1...Ke4!
- 1...dxe3
- 1.Re5+?
- 1...Bxe5
- 2.Qh1#
- 1...Sxe5!
- 1...Bxe5
- 1.Rb7?
- threat
- 2.Bxe6#
- 1...exf5
- 2.Be6#
- 2.Qg8#
- 1...c4
- 2.Qxd4#
- 1...Be5
- 2.Qh1#
- 1...Sf4
- 2.Se7#
- 2.Re5#
- 2.Qe5#
- 1...Se5
- 2.Se7#
- 1...Sf8
- 2.Se7#
- 1...Sc7
- 2.Sxc7#
- 1...Sg7
- 2.Sc7#
- 1...e5
- 2.Qg8#
- 1...cxb5!
- threat
- 1.Rc7?
- threat
- 2.Bxe6#
- 1...Sxc7
- 2.Sxc7#
- 1...exf5
- 2.Be6#
- 2.Qg8#
- 1...c4
- 2.Qxd4#
- 1...Be5
- 2.Qh1#
- 1...Sf4
- 2.Se7#
- 2.Re5#
- 2.Qe5#
- 1...Se5
- 2.Se7#
- 1...Sf8
- 2.Se7#
- 1...e5
- 2.Qg8#
- 1...Sg7!
- threat
- 1.Re7?
- threat
- 2.Bxe6#
- 1...cxb5
- 2.Bb7#
- 1...exf5
- 2.Be6#
- 2.Qg8#
- 1...c4
- 2.Qxd4#
- 1...Sf4
- 2.Re5#
- 2.Qe5#
- 1...Sc7
- 2.Sxc7#
- 1...Sg7
- 2.Sc7#
- 1...e5
- 2.Be6#
- 2.Qg8#
- 1...Sf8!
- threat
- 1.Rf7?
- threat
- 2.Bxe6#
- 1...cxb5
- 2.Bb7#
- 1...exf5
- 2.Be6#
- 1...c4
- 2.Qxd4#
- 1...Be5
- 2.Qh1#
- 1...Sf4
- 2.Se7#
- 2.Re5#
- 2.Qe5#
- 1...Se5
- 2.Se7#
- 1...Sf8
- 2.Se7#
- 1...Sc7
- 2.Sxc7#
- 1...Sg7
- 2.Sc7#
- 1...e5!
- threat
- 1.Rg7?
- threat
- 2.Bxe6#
- 1...Sxg7
- 2.Sc7#
- 1...cxb5
- 2.Bb7#
- 1...exf5
- 2.Be6#
- 2.Qg8#
- 1...Be5
- 2.Qh1#
- 1...Sf4
- 2.Se7#
- 1...Se5
- 2.Se7#
- 1...Sf8
- 2.Se7#
- 1...Sc7
- 2.Sxc7#
- 1...e5
- 2.Qg8#
- 1...c4!
- threat
- 1.Rh7?
- threat
- 2.Bxe6#
- 1...cxb5
- 2.Bb7#
- 1...exf5
- 2.Be6#
- 2.Qg8#
- 1...c4
- 2.Qxd4#
- 1...Sf4
- 2.Se7#
- 2.Re5#
- 2.Qe5#
- 1...Se5
- 2.Se7#
- 1...Sf8
- 2.Se7#
- 1...Sc7
- 2.Sxc7#
- 1...Sg7
- 2.Sc7#
- 1...e5
- 2.Qg8#
- 1...Be5!
- threat
- 1.Qxd4+?
- 1...Rxd4
- 2.Sc3#
- 1...cxd4!
- 1...Rxd4
- 1.Qe5+?
- 1...Sxe5
- 2.Se7#
- 1...Bxe5!
- 1...Sxe5
- 1.Qf6?
- threat
- 2.Qxe6#
- 1...Sxf6
- 2.Sc7#
- 1...cxb5
- 2.Bb7#
- 1...exf5
- 2.Qe6#
- 2.Qf7#
- 1...c4
- 2.Qxd4#
- 1...Sf4
- 2.Se7#
- 2.Re5#
- 2.Qe5#
- 1...Se5
- 2.Se7#
- 1...Sf8
- 2.Se7#
- 1...Sc7
- 2.Sxc7#
- 1...Sg7
- 2.Sc7#
- 1...e5
- 2.Qf7#
- 1...Be5!
- threat
- 1.Qxe8?
- threat
- 2.Sc7#
- 2.Qxe6#
- 1...Rxb3
- 2.Qxe6#
- 1...Rxb5
- 2.Qxe6#
- 1...cxb5
- 2.Bb7#
- 1...exf5
- 2.Sc7#
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 1...Be5
- 2.Sc7#
- 1...Sf4
- 2.Sc7#
- 2.Se7#
- 1...Se5
- 2.Sc7#
- 2.Se7#
- 1...Se7
- 2.Sc7#
- 2.Sxe7#
- 1...Sf8
- 2.Sc7#
- 2.Se7#
- 1...e5
- 2.Sc7#
- 2.Qf7#
- 2.Qg8#
- 1...c4!
- threat
- 1.Se3+?
- Keys
- 1.Ra7!
- threat
- 2.Bxe6#
- 1...cxb5
- 2.Bb7#
- 1...exf5
- 2.Be6#
- 2.Qg8#
- 1...c4
- 2.Qxd4#
- 1...Be5
- 2.Qh1#
- 1...Sf4
- 2.Se7#
- 2.Re5#
- 2.Qe5#
- 1...Se5
- 2.Se7#
- 1...Sf8
- 2.Se7#
- 1...Sc7
- 2.Sxc7#
- 1...Sg7
- 2.Sc7#
- 1...e5
- 2.Qg8#
- threat
- 1.Ra7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 11
- Sets
- B(a);OGATE::QAB(I)
- B(a);OGATE,P_SPINB(a),XP(E)::QAB(I)
- S(h);N_GUARD::S(D)
- S(h);N_GUARD::S(D),XS(h)
- S(h);N_GUARD,XQ(I)::S(D)
- S(i);N_GUARD,P_SPINS(i),XP(E)::S(C)
- S(i);N_GUARD::S(C)
- S(i);N_GUARD::S(C),XS(i)
- P(c);N_GUARD::S(C)
- P(d);N_GUARD,S_CUTR(b)::QAR1(I),XP(c)
- P(f);OGATEB,XS(C)::B(G)
- P(g);OGATEB,XS(D)::QAB(I)
- P(g);OGATEB::QAB(I)
- Tries
- Try
- S(D);CHECK
- Vars
- P(c);XS(D)::S(C)
- Refutation
- K(e);S_FLIGHT
- Try
- R(A);CHECK
- Vars
- B(a);OGATE,SBLOCK,XR(A)::QAB(I)
- Refutation
- S(h);XR(A)
- Try
- R(F);
- Threat
- B(G),XP(g)
- Vars
- P(d);N_GUARD,S_CUTR(b)::QAR1(I),XP(c)
- B(a);OGATE::QAB(I)
- S(h);N_GUARD::S(D)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(g);OGATEB::QAB(I)
- Refutation
- P(f);XS(C)
- Try
- R(F);
- Threat
- B(G),XP(g)
- Vars
- S(i);XR(F)::S(C),XS(i)
- P(d);N_GUARD,S_CUTR(b)::QAR1(I),XP(c)
- B(a);OGATE::QAB(I)
- S(h);N_GUARD::S(D)
- P(g);OGATEB::QAB(I)
- Refutation
- S(i);
- Try
- R(F);
- Threat
- B(G),XP(g)
- Vars
- P(f);OGATEB,XS(C)::B(G)
- P(d);N_GUARD,S_CUTR(b)::QAR1(I),XP(c)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- Refutation
- S(h);
- Try
- R(F);
- Threat
- B(G),XP(g)
- Vars
- P(f);OGATEB,XS(C)::B(G)
- P(g);XS(D)::B(G)
- P(d);N_GUARD,S_CUTR(b)::QAR1(I),XP(c)
- B(a);OGATE::QAB(I)
- S(h);N_GUARD::S(D)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- Refutation
- P(g);
- Try
- R(F);
- Threat
- B(G),XP(g)
- Vars
- S(i);N_GUARD,XR(F)::S(C)
- P(f);OGATEB,XS(C)::B(G)
- B(a);OGATE::QAB(I)
- S(h);N_GUARD::S(D)
- S(i);N_GUARD::S(C),XS(i)
- P(g);OGATEB::QAB(I)
- Refutation
- P(d);
- Try
- R(F);
- Threat
- B(G),XP(g)
- Vars
- P(f);OGATEB,XS(C)::B(G)
- P(d);N_GUARD,S_CUTR(b)::QAR1(I),XP(c)
- S(h);N_GUARD::S(D)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(g);OGATEB::QAB(I)
- Refutation
- B(a);
- Try
- Q(I);CHECK,XP(c)
- Vars
- R(b);XQ(I)::S(C)
- Refutation
- P(d);XQ(I)
- Try
- Q(I);CHECK
- Vars
- S(h);XQ(I)::S(D)
- Refutation
- B(a);XQ(I)
- Try
- Q(I);
- Threat
- QAB1(I),XP(g)
- Vars
- S(i);N_GUARD,XQ(I)::S(C)
- P(f);OGATEB,XS(C)::B(G)
- P(d);N_GUARD,S_CUTR(b)::QAR1(I),XP(c)
- S(h);N_GUARD::S(D)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(g);OGATEB::QAB(I)
- Refutation
- B(a);
- Try
- Q(I);XS(i)
- Threat
- DUALS(2)
- Vars
- R(b);XP(B)::QAB1(I),XP(g)
- R(b);XS(C)::QAB1(I),XP(g)
- P(f);OGATEB,XS(C)::B(G)
- B(a);::S(C)
- Refutation
- P(d);
- Try
- Actual
- R(F);
- Threat
- B(G),XP(g)
- Vars
- P(f);OGATEB,XS(C)::B(G)
- P(d);N_GUARD,S_CUTR(b)::QAR1(I),XP(c)
- B(a);OGATE::QAB(I)
- S(h);N_GUARD::S(D)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(g);OGATEB::QAB(I)
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).