MESON Chess Problem Database
Problem Display
PID: 231604 (6B1/6K1/2pp2Np/R1pn1k1P/5PR1/3P1n1P/5B2/8 w - - 0 1)
Lehn, Paul
Leipziger Volkszeitung, 1927
#2
10 + 7
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Sh4#
- 1...Sg1
- 2.Sh4#
- 1...Sd2
- 2.Sh4#
- 1...Sh2
- 2.Sh4#
- 1...Sd4
- 2.Sh4#
- 1...Sh4
- 2.Sxh4#
- 1...Se5
- 2.Sh4#
- 1...Sg5
- 2.Sh4#
- 1...Sc3
- 2.Se7#
- 1...Se3
- 2.Se7#
- 1...Sb4
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sf6
- 2.Se7#
- 1...Sc7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...c4
- 2.Se7#
- 1...Se1
- Tries
- 1.Be1?
- 1...Sxe1
- 2.Sh4#
- 1...Sg1
- 2.Sh4#
- 1...Sd2
- 2.Sh4#
- 1...Sh2
- 2.Sh4#
- 1...Sd4
- 2.Sh4#
- 1...Sh4
- 2.Sxh4#
- 1...Se5
- 2.Sh4#
- 1...Sg5
- 2.Sh4#
- 1...Sc3
- 2.Se7#
- 1...Se3
- 2.Se7#
- 1...Sb4
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sf6
- 2.Se7#
- 1...Sc7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...c4
- 2.Se7#
- 1...Sxf4!
- 1...Sxe1
- 1.Bg1?
- 1...Sxg1
- 2.Sh4#
- 1...Se1
- 2.Sh4#
- 1...Sd2
- 2.Sh4#
- 1...Sh2
- 2.Sh4#
- 1...Sd4
- 2.Sh4#
- 1...Sh4
- 2.Sxh4#
- 1...Se5
- 2.Sh4#
- 1...Sg5
- 2.Sh4#
- 1...Sc3
- 2.Se7#
- 1...Se3
- 2.Se7#
- 1...Sb4
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sf6
- 2.Se7#
- 1...Sc7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...c4
- 2.Se7#
- 1...Sxf4!
- 1...Sxg1
- 1.Be3?
- 1...Sxe3
- 2.Se7#
- 1...Se1
- 2.Sh4#
- 1...Sg1
- 2.Sh4#
- 1...Sd2
- 2.Sh4#
- 1...Sh2
- 2.Sh4#
- 1...Sd4
- 2.Sh4#
- 1...Sh4
- 2.Sxh4#
- 1...Se5
- 2.Sh4#
- 1...Sg5
- 2.Sh4#
- 1...Sc3
- 2.Se7#
- 1...Sb4
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sf6
- 2.Se7#
- 1...Sc7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...c4
- 2.Se7#
- 1...Sxf4!
- 1...Sxe3
- 1.Bg3?
- 1...Se1
- 2.Sh4#
- 1...Sg1
- 2.Sh4#
- 1...Sd2
- 2.Sh4#
- 1...Sh2
- 2.Sh4#
- 1...Sd4
- 2.Sh4#
- 1...Sh4
- 2.Sxh4#
- 1...Se5
- 2.Sh4#
- 1...Sg5
- 2.Sh4#
- 1...Sc3
- 2.Se7#
- 1...Se3
- 2.Se7#
- 1...Sb4
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sf6
- 2.Se7#
- 1...Sc7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...c4
- 2.Se7#
- 1...Sxf4!
- 1...Se1
- 1.Bf7?
- 1...Se1
- 2.Sh4#
- 1...Sg1
- 2.Sh4#
- 1...Sd2
- 2.Sh4#
- 1...Sh2
- 2.Sh4#
- 1...Sd4
- 2.Sh4#
- 1...Sh4
- 2.Sxh4#
- 1...Se5
- 2.Sh4#
- 1...Sg5
- 2.Sh4#
- 1...Sc3
- 2.Se7#
- 1...Se3
- 2.Se7#
- 1...Sb4
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sf6
- 2.Se7#
- 1...Sc7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...c4
- 2.Se7#
- 1...Sxf4!
- 1...Se1
- 1.Ra4?
- 1...Sxf4
- 2.Raxf4#
- 1...Se1
- 2.Sh4#
- 1...Sg1
- 2.Sh4#
- 1...Sd2
- 2.Sh4#
- 1...Sh2
- 2.Sh4#
- 1...Sd4
- 2.Sh4#
- 1...Sh4
- 2.Sxh4#
- 1...Se5
- 2.Sh4#
- 1...Sg5
- 2.Sh4#
- 1...Sc3
- 2.Se7#
- 1...Se3
- 2.Se7#
- 1...Sb4
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sf6
- 2.Se7#
- 1...Sc7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...c4!
- 1...Sxf4
- 1.Rxc5?
- threat
- 2.Se7#
- 1...Se5
- 2.Sh4#
- 1...dxc5!
- threat
- 1.Ra8?
- 1...Sxf4
- 2.Rf8#
- 1...Se1
- 2.Sh4#
- 1...Sg1
- 2.Sh4#
- 1...Sd2
- 2.Sh4#
- 1...Sh2
- 2.Sh4#
- 1...Sd4
- 2.Sh4#
- 1...Sh4
- 2.Sxh4#
- 1...Se5
- 2.Sh4#
- 1...Sg5
- 2.Sh4#
- 1...Sc3
- 2.Se7#
- 2.Rf8#
- 1...Se3
- 2.Se7#
- 2.Rf8#
- 1...Sb4
- 2.Se7#
- 2.Rf8#
- 1...Sb6
- 2.Se7#
- 2.Rf8#
- 1...Sf6
- 2.Se7#
- 1...Sc7
- 2.Se7#
- 2.Rf8#
- 1...Se7
- 2.Sxe7#
- 2.Rf8#
- 1...c4!
- 1...Sxf4
- 1.Be1?
- Keys
- 1.Bd4!
- 1...Sxd4
- 2.Sh4#
- 1...Sxf4
- 2.Se7#
- 1...cxd4
- 2.Se7#
- 1...Se1
- 2.Sh4#
- 1...Sg1
- 2.Sh4#
- 1...Sd2
- 2.Sh4#
- 1...Sh2
- 2.Sh4#
- 1...Sh4
- 2.Sxh4#
- 1...Se5
- 2.Sh4#
- 1...Sg5
- 2.Sh4#
- 1...Sc3
- 2.Se7#
- 1...Se3
- 2.Se7#
- 1...Sb4
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sf6
- 2.Se7#
- 1...Sc7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...c4
- 2.Se7#
- 1...Sxd4
- 1.Bd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(c);N_GUARD,P_SPINP(b)::S(H)
- S(c);N_GUARD,P_SPINP(b)::S(H),XS(c)
- P(b);P_SPINS(c)::S(H)
- Tries
- Try
- B(A);
- Vars
- S(a);N_GUARD,XB(A)::S(H)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(c);N_GUARD,P_SPINP(b)::S(H)
- S(c);N_GUARD,P_SPINP(b)::S(H),XS(c)
- P(b);P_SPINS(c)::S(H)
- Refutation
- S(c);P_SPINP(b),XP(D)
- Try
- B(A);
- Vars
- S(a);N_GUARD,XB(A)::S(H)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(c);N_GUARD,P_SPINP(b)::S(H)
- S(c);N_GUARD,P_SPINP(b)::S(H),XS(c)
- P(b);P_SPINS(c)::S(H)
- Refutation
- S(c);P_SPINP(b),XP(D)
- Try
- B(A);
- Vars
- S(c);N_GUARD,P_SPINP(b),XB(A)::S(H)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(c);N_GUARD,P_SPINP(b)::S(H)
- S(c);N_GUARD,P_SPINP(b)::S(H),XS(c)
- P(b);P_SPINS(c)::S(H)
- Refutation
- S(c);P_SPINP(b),XP(D)
- Try
- B(A);
- Vars
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(c);N_GUARD,P_SPINP(b)::S(H)
- S(c);N_GUARD,P_SPINP(b)::S(H),XS(c)
- P(b);P_SPINS(c)::S(H)
- Refutation
- S(c);P_SPINP(b),XP(D)
- Try
- B(J);
- Vars
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(c);N_GUARD,P_SPINP(b)::S(H)
- S(c);N_GUARD,P_SPINP(b)::S(H),XS(c)
- P(b);P_SPINS(c)::S(H)
- Refutation
- S(c);P_SPINP(b),XP(D)
- Try
- R(F);
- Vars
- S(c);OGATE,XP(D)::R1(F),XS(c)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- Refutation
- P(b);
- Try
- R(F);P_PINS(c),XP(b)
- Threat
- S(H)
- Vars
- S(a);N_GUARD,N_SPINS(c)::S(H)
- Refutation
- P(f);N_SPINS(c),XR(F)
- Try
- R(F);
- Vars
- S(c);N_GUARD,XP(D)::R(F)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(c);N_GUARD::S(H)
- Refutation
- P(b);
- Try
- Actual
- B(A);
- Vars
- S(a);N_GUARD,XB(A)::S(H)
- S(c);N_GUARD,P_SPINP(b),XP(D)::S(H)
- P(b);P_SPINS(c),XB(A)::S(H)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(c);N_GUARD,P_SPINP(b)::S(H)
- S(c);N_GUARD,P_SPINP(b)::S(H),XS(c)
- P(b);P_SPINS(c)::S(H)
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).