MESON Chess Problem Database
Problem Display
PID: 241157 (4R3/3P1P2/r2pKQ1b/q2P1Pp1/N3k1b1/R4pPN/B1n1PB2/7n w - - 0 1)
Hermanson, Halvar
Sachsische Zeitung, 1980
#2
14 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc3
- 2.Sxc3#
- 1...Qb6
- 2.Sc3#
- 1...Qd8
- 2.Sc3#
- 1...Qb5
- 2.Sc3#
- 1...Qxd5+
- 2.Bxd5#
- 1...Ra7
- 2.Kxd6#
- 1...Bxh3
- 2.exf3#
- 1...Bxf5+
- 2.Qxf5#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Sxf2
- 2.Sxf2#
- 1...Sa1
- 2.Re3#
- 2.Qd4#
- 1...Se1
- 2.Re3#
- 2.Qd4#
- 1...Sxa3
- 2.Qd4#
- 1...Se3
- 2.Rxe3#
- 1...Sb4
- 2.Sc3#
- 2.Re3#
- 2.Qd4#
- 1...Sd4+
- 2.Qxd4#
- 1...Qc3
- Tries
- 1.Qb2?
- threat
- 2.Kf6#
- 2.Qxc2#
- 1...Qxd5+
- 2.Bxd5#
- 1...Sd4+
- 2.Qxd4#
- 1...Qxa4
- 2.Kf6#
- 1...Sxf2
- 2.Kf6#
- 2.Sxf2#
- 1...Sxa3
- 2.Kf6#
- 2.Qd4#
- 1...Qd2
- 2.Kf6#
- 1...Qc3
- 2.Sxc3#
- 1...Qc7
- 2.Kf6#
- 1...Qd8
- 2.Sc3#
- 2.Qxc2#
- 1...Qb5
- 2.Kf6#
- 2.Sc3#
- 1...Qc5
- 2.Kf6#
- 1...Rc6
- 2.Kf6#
- 1...Ra8
- 2.Qxc2#
- 1...Bg7
- 2.Sxg5#
- 2.Qxc2#
- 1...Bf8
- 2.Sxg5#
- 2.Qxc2#
- 1...Sa1
- 2.Kf6#
- 2.Re3#
- 2.Qd4#
- 1...Se1
- 2.Kf6#
- 2.Re3#
- 2.Qd4#
- 1...Se3
- 2.Kf6#
- 2.Rxe3#
- 1...Sb4
- 2.Kf6#
- 2.Sc3#
- 2.Re3#
- 2.Qd4#
- 1...Bxf5+!
- threat
- 1.Qc3?
- threat
- 2.Kf6#
- 2.Qxc2#
- 2.Qd3#
- 1...Qxd5+
- 2.Bxd5#
- 1...Sd4+
- 2.Qxd4#
- 1...Qxc3
- 2.Sxc3#
- 1...Qxa4
- 2.Kf6#
- 2.Qd3#
- 1...Sxf2
- 2.Kf6#
- 2.Sxf2#
- 1...Sxa3
- 2.Kf6#
- 2.Qd4#
- 2.Qd3#
- 2.Qe3#
- 1...Qc7
- 2.Kf6#
- 2.Qd3#
- 1...Qd8
- 2.Qxc2#
- 2.Qd3#
- 1...Qb5
- 2.Kf6#
- 1...Qc5
- 2.Kf6#
- 2.Qd3#
- 1...Rc6
- 2.Kf6#
- 2.Qd3#
- 1...Ra8
- 2.Qxc2#
- 2.Qd3#
- 1...Bg7
- 2.Sxg5#
- 2.Qxc2#
- 2.Qd3#
- 1...Bf8
- 2.Sxg5#
- 2.Qxc2#
- 2.Qd3#
- 1...Sa1
- 2.Kf6#
- 2.Qd4#
- 2.Qd3#
- 2.Qe3#
- 2.Qc4#
- 1...Se1
- 2.Kf6#
- 2.Qd4#
- 2.Qe3#
- 2.Qc4#
- 1...Se3
- 2.Kf6#
- 2.Qd3#
- 2.Qxe3#
- 1...Sb4
- 2.Kf6#
- 2.Qd4#
- 2.Qe3#
- 2.Qc4#
- 1...Bxf5+!
- threat
- 1.Qb2?
- Keys
- 1.Ke7!
- threat
- 2.Qe6#
- 1...Qd8+
- 2.Kxd8#
- 1...Bf8+
- 2.Kxf8#
- 1...Qxd5
- 2.Sc3#
- 1...Bxf5
- 2.exf3#
- 1...Sxf2
- 2.Sxf2#
- 1...Qc3
- 2.Sxc3#
- 1...Bg7
- 2.Sxg5#
- 1...Se3
- 2.Rxe3#
- 1...Sd4
- 2.Re3#
- threat
- 1.Ke7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(f);N_GUARD::S(G),XQ(f)
- Q(f);N_GUARD::S(G)
- Q(f);CHECK,OGATE,XP(H)::B(A),XQ(f)
- R(h);::R(N)+K(J),XP(i)
- B(e);N_GUARD,XS(F)::P(B),XP(c)
- B(e);CHECK,OGATE,XP(I)::QAB1(K),XB(e)
- B(j);N_GUARD::S(F),XP(g)
- S(a);XB(C)::S(F),XS(a)
- S(b);N_GUARD,XR(D)::QAR1(K)
- S(b);N_GUARD::R1(D),XS(b)
- S(b);CHECK,N_GUARD::QAR1(K),XS(b)
- Tries
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,OGATE,XP(H)::B(A),XQ(f)
- S(b);CHECK,N_GUARD::QAR1(K),XS(b)
- Q(f);XS(G)::R(N)+K(J)
- Q(f);::R(N)+K(J)
- Q(f);N_GUARD::S(G),XQ(f)
- R(h);::R(N)+K(J)
- R(h);::QAB(K),XS(b)
- Refutation
- B(e);CHECK,XP(I)
- Try
- Q(K);
- Threat
- DUALS(3)
- Vars
- Q(f);CHECK,OGATE,XP(H)::B(A),XQ(f)
- S(b);CHECK,N_GUARD::QAR1(K),XS(b)
- Q(f);XQ(K)::S(G),XQ(f)
- Q(f);::R(N)+K(J)
- Refutation
- B(e);CHECK,XP(I)
- Try
- Actual
- K(J);N_SPINP(I),P-FLIGHT
- Threat
- QAR2(K)
- Vars
- Q(f);CHECK::R(N)+K(J),XQ(f)
- B(j);CHECK::R(N)+K(J),XB(j)
- Q(f);N_GUARD,XP(H)::S(G)
- B(e);N_GUARD,XP(I)::P(B),XP(c)
- S(a);XB(C)::S(F),XS(a)
- Q(f);N_GUARD::S(G),XQ(f)
- B(j);N_GUARD::S(F),XP(g)
- S(b);N_GUARD::R1(D),XS(b)
- S(b);N_GUARD::R1(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).