MESON Chess Problem Database
Problem Display
PID: 276368 (8/K6Q/8/R1n1p3/1p1kn3/1P6/2P5/3N3B w - - 0 1)
Hermanson, Halvar
To Mat, 1960
#2
7 + 5
| 15601 | Albrecht-Leiss-Degener Collection | 2024 |
SOLUTION
- SOUND
- Sets
- 1...Kd5
- 2.Qd7#
- 1...Sxb3
- 2.Qxe4#
- 1...Sd3
- 2.Qxe4#
- 1...Sa4
- 2.Qxe4#
- 1...Sa6
- 2.Qxe4#
- 1...Se6
- 2.Qxe4#
- 1...Sb7
- 2.Qxe4#
- 1...Sd7
- 2.Qxe4#
- 1...Kd5
- Tries
- 1.Qg6?
- 1...Sxb3
- 2.Qxe4#
- 1...Sd2
- 2.Qg1#
- 2.Qd6#
- 1...Sf2
- 2.Qd6#
- 1...Sc3
- 2.Qg1#
- 1...Sg3
- 2.Qd6#
- 1...Sg5
- 2.Qd6#
- 1...Sd6
- 2.Qg1#
- 2.Qxd6#
- 1...Sf6
- 2.Qg1#
- 1...Sd3
- 2.Qxe4#
- 1...Sa4
- 2.Qxe4#
- 1...Sa6
- 2.Qxe4#
- 1...Se6
- 2.Qxe4#
- 1...Sb7
- 2.Qxe4#
- 1...Sd7
- 2.Qxe4#
- 1...Kd5!
- 1...Sxb3
- 1.Qg8?
- threat
- 2.Qc4#
- 1...Sxb3
- 2.Qd5#
- 1...Sd2
- 2.Qd5#
- 2.Qg1#
- 1...Sd6
- 2.Qd5#
- 2.Qg1#
- 1...Se6!
- threat
- 1.Qh3?
- 1...Kd5
- 2.Qd7#
- 1...Sxb3
- 2.Qd3#
- 1...Sd2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sd3
- 2.Qxd3#
- 2.Qe3#
- 1...Sa4
- 2.Qd3#
- 2.Qe3#
- 1...Sa6
- 2.Qd3#
- 2.Qe3#
- 1...Se6
- 2.Qd3#
- 2.Qe3#
- 1...Sb7
- 2.Qd3#
- 2.Qe3#
- 1...Sd7
- 2.Qd3#
- 2.Qe3#
- 1...Sg3!
- 1...Kd5
- 1.Qh4?
- 1...Sxb3
- 2.Qxe4#
- 1...Sd3
- 2.Qxe4#
- 1...Sa4
- 2.Qxe4#
- 1...Sa6
- 2.Qxe4#
- 1...Se6
- 2.Qxe4#
- 1...Sb7
- 2.Qxe4#
- 1...Sd7
- 2.Qxe4#
- 1...Kd5!
- 1...Sxb3
- 1.Qb7?
- 1...Sxb3
- 2.Qxe4#
- 2.Qd5#
- 2.Qxb4#
- 1...Sd2
- 2.Qd5#
- 1...Sf2
- 2.Qd5#
- 2.Qxb4#
- 1...Sc3
- 2.Qxb4#
- 1...Sg3
- 2.Qd5#
- 2.Qxb4#
- 1...Sg5
- 2.Qd5#
- 2.Qxb4#
- 1...Sd6
- 2.Qd5#
- 1...Sf6
- 2.Qxb4#
- 1...Sd3
- 2.Rd5#
- 2.Qxe4#
- 2.Qd5#
- 1...Sa4
- 2.Rd5#
- 2.Qxe4#
- 2.Qd5#
- 2.Qxb4#
- 1...Sa6
- 2.Rd5#
- 2.Qxe4#
- 2.Qd5#
- 1...Se6
- 2.Rd5#
- 2.Qxe4#
- 2.Qd5#
- 2.Qxb4#
- 1...Sd7
- 2.Rd5#
- 2.Qxe4#
- 2.Qd5#
- 2.Qxb4#
- 1...Sxb7!
- 1...Sxb3
- 1.Qc7?
- 1...Kd5
- 2.Qd7#
- 1...Sd2
- 2.Qd6#
- 2.Qxc5#
- 1...Sf2
- 2.Qd6#
- 2.Qxc5#
- 1...Sc3
- 2.Qxc5#
- 1...Sg3
- 2.Qd6#
- 2.Qxc5#
- 1...Sg5
- 2.Qd6#
- 2.Qxc5#
- 1...Sd6
- 2.Qxd6#
- 2.Qxc5#
- 1...Sf6
- 2.Qxc5#
- 1...Sd3
- 2.Qc4#
- 1...Sa4
- 2.Qxe5#
- 2.Qc4#
- 1...Sa6
- 2.Qxe5#
- 2.Qc4#
- 1...Se6
- 2.Qxe5#
- 2.Qc4#
- 1...Sb7
- 2.Qxe5#
- 2.Qc4#
- 1...Sd7
- 2.Qc4#
- 1...Sxb3!
- 1...Kd5
- 1.Qd7+?
- 1...Sd6
- 2.Qxd6#
- 1...Sxd7!
- 1...Sd6
- 1.Qe7?
- 1...Kd5
- 2.Qd7#
- 1...Sxb3
- 2.Qxb4#
- 1...Sd2
- 2.Qxc5#
- 2.Qd6#
- 1...Sf2
- 2.Qxc5#
- 2.Qd6#
- 1...Sc3
- 2.Qxc5#
- 1...Sg3
- 2.Qxc5#
- 2.Qd6#
- 1...Sg5
- 2.Qxc5#
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sf6
- 2.Qxc5#
- 1...Sa4
- 2.Qxb4#
- 2.Qxe5#
- 1...Sa6
- 2.Qxe5#
- 1...Se6
- 2.Qxb4#
- 1...Sb7
- 2.Qxb4#
- 2.Qxe5#
- 1...Sd7
- 2.Qxb4#
- 1...Sd3!
- 1...Kd5
- 1.Qf7?
- threat
- 2.Qc4#
- 1...Sxb3
- 2.Qd5#
- 1...Sd2
- 2.Qd5#
- 2.Qf2#
- 1...Sd6
- 2.Qd5#
- 2.Qf2#
- 1...Se6!
- threat
- 1.Qg6?
- Keys
- 1.Qf5!
- 1...Kd5
- 2.Qd7#
- 1...Sxb3
- 2.Qxe4#
- 1...Sd2
- 2.Qf2#
- 1...Sf2
- 2.Qxf2#
- 1...Sc3
- 2.Qf2#
- 1...Sg3
- 2.Qf2#
- 1...Sg5
- 2.Qf2#
- 1...Sd6
- 2.Qf2#
- 1...Sf6
- 2.Qf2#
- 1...Sd3
- 2.Qxe4#
- 1...Sa4
- 2.Qxe4#
- 2.Qxe5#
- 1...Sa6
- 2.Qxe4#
- 2.Qxe5#
- 1...Se6
- 2.Qxe4#
- 2.Qxe5#
- 1...Sb7
- 2.Qxe4#
- 2.Qxe5#
- 1...Sd7
- 2.Qxe4#
- 1...Kd5
- 1.Qf5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 4
- Sets
- K(b);P-FLIGHT,P_SPINS(c),S_CUTS(d)::QAR2(G)
- S(d);N_GUARD,XP(D)::QAR1(G),XS(c)
- S(d);N_GUARD::QAR1(G),XS(c)
- Tries
- Try
- Q(G);
- Vars
- S(d);N_GUARD,XP(D)::QAR1(G),XS(c)
- S(c);N_GUARD::QAR2(G)
- S(c);N_GUARD::QAB(G)
- S(d);N_GUARD::QAR1(G),XS(c)
- Refutation
- K(b);P-FLIGHT,P_SPINS(c)
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- S(d);XP(D)::QAR1(G)
- Refutation
- S(d);
- Try
- Q(G);
- Vars
- K(b);P-FLIGHT,P_SPINS(c),S_CUTS(d)::QAR2(G)
- S(d);N_GUARD,XP(D)::QAR1(G)
- S(c);::QAB1(G)
- Refutation
- S(c);
- Try
- Q(G);P_PINS(c)
- Vars
- S(d);N_GUARD,XP(D)::QAR1(G),XS(c)
- S(d);N_GUARD::QAR1(G),XS(c)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(G);
- Vars
- S(c);::QAR1(G)
- S(c);::QAR2(G),XP(a)
- Refutation
- S(d);XQ(G)
- Try
- Q(G);
- Vars
- K(b);P-FLIGHT,P_SPINS(c),S_CUTS(d)::QAR2(G)
- S(c);N_GUARD::QAB1(G),XS(d)
- S(d);OGATE::QAR1(G)
- Refutation
- S(d);XP(D)
- Try
- Q(G);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAR2(G),XS(c)
- Refutation
- S(d);XQ(G)
- Try
- Q(G);
- Vars
- K(b);P-FLIGHT,P_SPINS(c),S_CUTS(d)::QAR2(G)
- S(d);OGATE,XP(D)::QAR2(G),XP(a)
- S(c);N_GUARD::QAB1(G),XS(d)
- S(c);N_GUARD::QAR2(G),XS(c)
- S(d);::QAB1(G),XP(e)
- S(d);OGATE::QAR2(G),XP(a)
- Refutation
- S(d);
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- S(d);XP(D)::QAR1(G)
- Refutation
- S(d);
- Try
- Actual
- Q(G);
- Vars
- K(b);P-FLIGHT,P_SPINP(e),P_SPINS(c),S_CUTS(d)::QAR2(G)
- S(d);N_GUARD,XP(D)::QAR1(G),XS(c)
- S(c);N_GUARD::QAB(G)
- S(c);N_GUARD::QAB(G),XS(c)
- S(d);N_GUARD::QAR1(G),XS(c)
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).