MESON Chess Problem Database
Problem Display
PID: 102858 (8/1K2p2B/2R5/p2k4/3B2p1/2pN1np1/2N3np/7Q w - - 0 1)
Hermanson, Halvar
Northwest Chess, 1978
#2
7 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sge1
- 2.Sf4#
- 1...Se3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sgh4
- 2.Sf4#
- 1...Sfe1
- 2.Sf4#
- 1...Sg1
- 2.Sf4#
- 1...Sd2
- 2.Sf4#
- 1...Sxd4
- 2.Se3#
- 1...Sfh4
- 2.Sf4#
- 1...Se5
- 2.Sf4#
- 1...Sg5
- 2.Sf4#
- 1...a4
- 2.Sdb4#
- 1...Sge1
- Tries
- 1.Kc7?
- 1...Sxd4
- 2.Se3#
- 1...Sge1
- 2.Sf4#
- 1...Se3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sgh4
- 2.Sf4#
- 1...Sfe1
- 2.Sf4#
- 1...Sg1
- 2.Sf4#
- 1...Sd2
- 2.Sf4#
- 1...Sfh4
- 2.Sf4#
- 1...Se5
- 2.Sf4#
- 1...Sg5
- 2.Sf4#
- 1...a4
- 2.Sdb4#
- 1...e6
- 2.Rc5#
- 1...e5!
- 1...Sxd4
- 1.Qa1?
- threat
- 2.Qa2#
- 2.Qxa5#
- 1...Se3
- 2.Sf4#
- 2.Qxa5#
- 1...Sd2
- 2.Qxa5#
- 1...Se5
- 2.Qxa5#
- 1...a4
- 2.Sdb4#
- 2.Qa2#
- 1...Sxd4!
- threat
- 1.Qb1?
- threat
- 2.Qa2#
- 2.Qb3#
- 2.Qb5#
- 1...Se3
- 2.Sf4#
- 2.Qb5#
- 1...Sd2
- 2.Qb5#
- 1...Se5
- 2.Qb5#
- 1...a4
- 2.Sdb4#
- 2.Qa2#
- 2.Qb5#
- 1...Sxd4!
- threat
- 1.Qe1?
- threat
- 2.Be4#
- 2.Qe4#
- 2.Qe6#
- 1...Sgxe1
- 2.Sf4#
- 1...Sxd4
- 2.Be4#
- 2.Qe4#
- 2.Qe5#
- 1...e5
- 2.Be4#
- 2.Bg8#
- 2.Qe4#
- 1...Se3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 2.Be4#
- 2.Qe4#
- 1...Sd2
- 2.Qe5#
- 2.Qe6#
- 1...Se5
- 2.Be4#
- 2.Qe4#
- 2.Qxe5#
- 1...Sg5
- 2.Qe5#
- 1...e6
- 2.Be4#
- 2.Qe4#
- 2.Qxe6#
- 1...Sfxe1!
- threat
- 1.Kc7?
- Keys
- 1.Be5!
- 1...Sxe5
- 2.Sf4#
- 1...Sge1
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sf4
- 2.Se3#
- 1...Sgh4
- 2.Se3#
- 1...Sfe1
- 2.Se3#
- 1...Sg1
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 1...Sfh4
- 2.Se3#
- 1...Sg5
- 2.Se3#
- 1...a4
- 2.Scb4#
- 1...e6
- 2.Rc5#
- 1...Sxe5
- 1.Be5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 10
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD,P_SPINS(d)::S(C)
- S(a);N_GUARD,P_SPINS(d)::S(C),XS(a)
- S(d);P_SPINS(a)::S(C)
- S(d);P_SPINS(a),SBLOCK,XB(D)::S(B)
- P(g);N_GUARD::S(C)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- S(d);P_SPINS(a),SBLOCK,XB(D)::S(B)
- S(a);N_GUARD,P_SPINS(d)::S(C)
- S(a);N_GUARD,P_SPINS(d)::S(C),XS(a)
- S(d);P_SPINS(a)::S(C)
- P(g);N_GUARD::S(C)
- P(i);SBLOCK::R1(E)
- Refutation
- P(i);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(d);::QAR(A),XP(g)
- Refutation
- S(d);XB(D)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(d);::QAR2(A)
- Refutation
- S(d);XB(D)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(a);N_GUARD,XQ(A)::S(C)
- S(a);N_GUARD::S(C)
- S(d);N_GUARD::QAR1(A)
- Refutation
- S(d);XQ(A)
- Try
- Actual
- B(D);
- Vars
- S(d);P_SPINS(a),SBLOCK,XB(D)::S(C)
- S(a);N_GUARD,P_SPINS(d)::S(B)
- S(a);N_GUARD,P_SPINS(d)::S(B),XS(a)
- S(d);P_SPINS(a)::S(B)
- P(g);N_GUARD::S(B)
- P(i);SBLOCK::R1(E)
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).