MESON Chess Problem Database
Problem Display
PID: 17688 (K5bB/5p2/R3Pn2/R2Nkr2/5n2/4P2p/p3PPqQ/7B w - - 0 1)
Hassberg, Eric Manfred
Sjakk-Nytt, 1948
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Sc3#
- 1...Qf1
- 2.Sc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Se7#
- 1...Qxd5+
- 2.Rxd5#
- 1...Qg1
- 2.Sc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Se7#
- 1...Qxf2
- 2.Sc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Se7#
- 1...Qxh2
- 2.Sxf4#
- 1...Qg3
- 2.Sxf4#
- 1...Qg4
- 2.Sc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Se7#
- 1...Qg5
- 2.Sc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Se7#
- 1...Qg6
- 2.Sc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Se7#
- 1...Rg5
- 2.Qxf4#
- 1...Rh5
- 2.Qxf4#
- 1...Ke4
- Tries
- 1.Bxf6+?
- 1...Ke4
- 2.Sc3#
- 1...Rxf6!
- 1...Ke4
- 1.Qxg2?
- threat
- 2.Sxf4#
- 2.Qe4#
- 1...Sxe2
- 2.Sc3#
- 2.Sb4#
- 2.Sf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Se7#
- 2.Qe4#
- 1...Sxg2
- 2.Sc3#
- 2.Sxf6#
- 1...Sxd5
- 2.Rxd5#
- 2.Qe4#
- 2.Qxd5#
- 1...Sxe6
- 2.Qe4#
- 1...a1Q
- 2.Qe4#
- 1...a1R
- 2.Qe4#
- 1...Sd3
- 2.Qe4#
- 1...Sh5
- 2.Sc3#
- 2.Sb4#
- 2.Sf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Se7#
- 2.Qe4#
- 1...Sg6
- 2.Sc3#
- 2.Sb4#
- 2.Sf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Se7#
- 2.Qe4#
- 1...hxg2!
- threat
- 1.Bxf6+?
- Keys
- 1.e7!
- threat
- 2.e8Q#
- 2.e8R#
- 1...Qxd5+
- 2.Rxd5#
- 1...Ke4
- 2.Sc3#
- 1...Qxh1
- 2.e8Q#
- 2.e8R#
- 1...Qxf2
- 2.Sc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.e8Q#
- 2.e8R#
- 1...Qxh2
- 2.Sxf4#
- 1...Rg5
- 2.Qxf4#
- 1...Rh5
- 2.Qxf4#
- 1...a1Q
- 2.e8Q#
- 2.e8R#
- 1...a1S
- 2.e8Q#
- 2.e8R#
- 1...a1B
- 2.e8Q#
- 2.e8R#
- 1...a1R
- 2.e8Q#
- 2.e8R#
- 1...Qf1
- 2.Sc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.e8Q#
- 2.e8R#
- 1...Qf3
- 2.e8Q#
- 2.e8R#
- 1...Qe4
- 2.e8Q#
- 2.e8R#
- 1...Qg1
- 2.Sc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.e8Q#
- 2.e8R#
- 1...Qg3
- 2.Sxf4#
- 1...Qg4
- 2.Sc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.e8Q#
- 2.e8R#
- 1...Qg5
- 2.Sc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.e8Q#
- 2.e8R#
- 1...Qg6
- 2.Sc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.e8Q#
- 2.e8R#
- 1...Qg7
- 2.Sxf6#
- 1...Bh7
- 2.e8Q#
- 2.e8R#
- threat
- 1.e7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(e);N_PINS(G),N_SPINS(d),P-FLIGHT,P_SPINQ(b)::S(G)
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(G)::R1(F),XQ(b)
- Q(b);N_PINS(G),N_SPINS(d),P_SPINS(g),XQ(D)::R(F)+S(G),XS(d)
- Q(b);N_PINS(G),N_SPINS(d),P_SPINS(g)::R(F)+S(G),XS(d)
- R(f);N_GUARD::QAB1(D),XS(d)
- Tries
- Try
- B(K);CHECK,XS(g)
- Vars
- K(e);N_PINS(G),N_SPINS(d),P-FLIGHT,P_SPINQ(b)::S(G)
- Refutation
- R(f);XB(K)
- Try
- Q(D);N_PINS(d),N_SPINS(G),P_PINS(g),XQ(b)
- Threat
- DUALS(2)
- Vars
- S(d);XP(I)::QAR1(D)
- P(a);::QAR1(D)
- S(d);::QAR1(D)
- Refutation
- P(c);XQ(D)
- Try
- Actual
- P(I);
- Threat
- P=Q
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(G)::R1(F),XQ(b)
- K(e);N_PINS(G),N_SPINS(d),P-FLIGHT,P_SPINQ(b)::S(G)
- Q(b);XB(A)::P=Q
- Q(b);N_PINS(G),N_SPINS(d),P_SPINS(g),XQ(D)::R(F)+S(G),XS(d)
- R(f);N_GUARD::QAB1(D),XS(d)
- P(a);::P=Q
- Q(b);::P=Q
- Q(b);N_PINS(G),N_SPINS(d),P_SPINS(g)::R(F)+S(G),XS(d)
- Q(b);N_PINS(G)::R(F)+S(G),XS(g)
- B(i);::P=Q
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).