MESON Chess Problem Database
Problem Display
PID: 187657 (K5Q1/8/1Bn1P1Nn/2PkNp2/8/1PP5/b3P3/1B6 w - - 0 1)
Nielsen, Kristian
Nord Familien Journal, 1909
#2
11 + 5
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Sd4
- 2.c4#
- 1...Sxe5
- 2.Se7#
- 1...Sg4
- 2.e7#
- 1...Sd4
- Tries
- 1.Sc4?
- threat
- 2.Se3#
- 2.Sf4#
- 1...Bxb3
- 2.Se3#
- 1...Sxg8
- 2.Sf4#
- 1...Sb4
- 2.Se7#
- 1...Sd4
- 2.Se7#
- 1...Sa5
- 2.Se7#
- 1...Se5
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sb8
- 2.Se7#
- 1...Sd8
- 2.Se7#
- 1...Sf7
- 2.Sf4#
- 1...Sg4
- 2.Sf4#
- 2.e7#
- 1...f4
- 2.Sxf4#
- 1...Bxb1!
- threat
- 1.Sd7?
- threat
- 2.Sf4#
- 2.Sf6#
- 1...Bxb1
- 2.Sf6#
- 1...Sxg8
- 2.Sf4#
- 1...Sb4
- 2.Se7#
- 1...Sd4
- 2.Se7#
- 1...Sa5
- 2.Se7#
- 1...Se5
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sb8
- 2.Se7#
- 1...Sd8
- 2.Se7#
- 1...Sf7
- 2.Sf4#
- 1...Sg4
- 2.Sf4#
- 2.e7#
- 1...f4
- 2.Sxf4#
- 2.Sf6#
- 1...Bxb3!
- threat
- 1.Qc8?
- threat
- 2.Qd7#
- 2.Qxc6#
- 1...Bxb1
- 2.Qxc6#
- 1...Sxe5
- 2.Sf4#
- 2.Se7#
- 1...Sb4
- 2.Qd7#
- 1...Sd4
- 2.Qd7#
- 2.c4#
- 1...Sa5
- 2.Qd7#
- 1...Sa7
- 2.Qd7#
- 1...Se7
- 2.Qd7#
- 1...Sd8
- 2.Qd7#
- 1...Sf7
- 2.Qxc6#
- 1...Sb8!
- threat
- 1.Qd8+?
- 1...Kxe6
- 2.Qd6#
- 1...Sxd8!
- 1...Kxe6
- 1.Qe8?
- threat
- 2.Qxc6#
- 2.Qd7#
- 1...Bxb1
- 2.Qxc6#
- 1...Sxe5
- 2.Sf4#
- 1...Se7
- 2.Qd7#
- 1...Sb4
- 2.Qd7#
- 1...Sd4
- 2.Qd7#
- 2.c4#
- 1...Sa5
- 2.Qd7#
- 1...Sa7
- 2.Qd7#
- 1...Sd8
- 2.Qd7#
- 1...Sf7
- 2.Qxc6#
- 1...Sb8!
- threat
- 1.e7+?
- 1...Sf7
- 2.Qxf7#
- 1...Sxg8!
- 1...Sf7
- 1.Sc4?
- Keys
- 1.Sg4!
- threat
- 2.Se3#
- 2.Sf6#
- 2.Sf4#
- 1...Bxb1
- 2.Sf6#
- 1...Bxb3
- 2.Se3#
- 1...Sxg4
- 2.e7#
- 1...Sxg8
- 2.Sf4#
- 1...fxg4
- 2.e4#
- 1...Sb4
- 2.Se7#
- 1...Sd4
- 2.Se7#
- 1...Sa5
- 2.Se7#
- 1...Se5
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sb8
- 2.Se7#
- 1...Sd8
- 2.Se7#
- 1...Sf7
- 2.Sf4#
- 1...f4
- 2.Sf6#
- 2.Sxf4#
- threat
- 1.Sg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- S(d);SBLOCK::P(D)
- S(d);N_GUARD,SBLOCK,XS(F)::S(I)
- S(e);N_GUARD::QAB(K)+P(H)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(a);XP(C)::S(F)
- S(e);XQ(K)::S(I)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(e);::S(I)
- P(c);::S(I),XP(c)
- Refutation
- B(a);XB(A)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(a);XB(A)::S(F)
- S(e);XQ(K)::S(I)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(e);::S(I)
- Refutation
- B(a);XP(C)
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- B(a);XB(A)::QAB1(K),XS(d)
- S(d);::QAR2(K)
- S(e);::QAB1(K),XS(d)
- Refutation
- S(d);
- Try
- Q(K);CHECK
- Vars
- K(b);S_FLIGHT,XP(H)::QAR1(K)
- Refutation
- S(d);XQ(K)
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- B(a);XB(A)::QAB1(K),XS(d)
- S(d);SBLOCK,XS(F)::S(I)
- S(d);::QAR2(K)
- S(e);::QAB1(K),XS(d)
- Refutation
- S(d);
- Try
- P(H);CHECK
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB(K),XS(e)
- Refutation
- S(e);XQ(K)
- Try
- Actual
- S(F);
- Threat
- DUALS(3)
- Vars
- B(a);XB(A)::S(F)
- B(a);XP(C)::S(F)
- S(e);N_GUARD,XS(F)::QAB(K)+P(H)
- S(e);XQ(K)::S(I)
- P(c);N_GUARD,XS(F)::P(B)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(e);::S(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).