MESON Chess Problem Database
Problem Display
PID: 110299 (6q1/2Qp1p2/4n3/p1p2p2/K1k1P2R/4P3/2nPP3/8 w - - 0 1)
Sokka, Hannu Erkki Juhani
Suomen Sosialdemokraatti, 1966
#2
7 + 9
| 422 | Suomen Tehtavaniekat | 1992 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Tries
- 1.Qxa5?
- threat
- 2.Qc3#
- 2.Qb5#
- 2.Qa6#
- 2.d3#
- 1...Sxe3
- 2.Qc3#
- 1...Qg7
- 2.Qb5#
- 2.Qa6#
- 2.d3#
- 1...Qa8
- 2.d3#
- 1...Qb8
- 2.Qc3#
- 2.d3#
- 1...Qc8
- 2.Qc3#
- 2.Qb5#
- 2.d3#
- 1...Qh8
- 2.Qb5#
- 2.Qa6#
- 2.d3#
- 1...Se1
- 2.Qc3#
- 2.Qb5#
- 2.Qa6#
- 1...Sa3
- 2.Qc3#
- 2.d3#
- 1...Sb4
- 2.Qb5#
- 1...Scd4
- 2.Qc3#
- 2.d3#
- 1...Sed4
- 2.Qc3#
- 2.d3#
- 1...Sf4
- 2.Qc3#
- 2.Qb5#
- 2.Qa6#
- 1...Sc7
- 2.Qc3#
- 2.d3#
- 1...fxe4!
- threat
- 1.Qd6?
- threat
- 2.Qd3#
- 2.Qd5#
- 2.Qa6#
- 1...Sxe3
- 2.Qd3#
- 1...fxe4
- 2.Qd3#
- 1...Qa8
- 2.Qd3#
- 1...Qb8
- 2.Qd3#
- 2.Qd5#
- 1...Qc8
- 2.Qd3#
- 2.Qd5#
- 1...Se1
- 2.Qd5#
- 2.Qa6#
- 1...Sa3
- 2.Qd3#
- 2.Qd5#
- 1...Scd4
- 2.Qd5#
- 1...Sed4
- 2.Qd5#
- 1...Sf4
- 2.Qa6#
- 1...Sc7
- 2.Qd3#
- 1...Sb4!
- threat
- 1.Qb7?
- threat
- 2.Qd5#
- 2.Qa6#
- 2.Qb3#
- 2.Qb5#
- 1...fxe4
- 2.Qb3#
- 1...Qa8
- 2.Qb3#
- 2.Qb5#
- 1...Qb8
- 2.Qd5#
- 1...Qc8
- 2.Qd5#
- 2.Qb3#
- 2.Qb5#
- 1...Sa1
- 2.Qd5#
- 2.Qa6#
- 2.Qb5#
- 1...Sa3
- 2.Qd5#
- 2.Qb3#
- 1...Sb4
- 2.Qb5#
- 1...Scd4
- 2.Qd5#
- 1...Sed4
- 2.Qd5#
- 1...Sf4
- 2.Qa6#
- 2.Qb3#
- 2.Qb5#
- 1...Sc7
- 2.Qb3#
- 1...d5
- 2.Qxd5#
- 2.Qa6#
- 2.Qb3#
- 2.Qb5#
- 1...Sxe3!
- threat
- 1.Qxd7?
- threat
- 2.Qb5#
- 2.Qd3#
- 2.Qd5#
- 1...Sxe3
- 2.Qd3#
- 1...fxe4
- 2.Qd3#
- 1...Qa8
- 2.Qb5#
- 2.Qd3#
- 1...Qb8
- 2.Qd3#
- 2.Qd5#
- 1...Qd8
- 2.Qb5#
- 1...Se1
- 2.Qb5#
- 2.Qd5#
- 1...Sa3
- 2.Qd3#
- 2.Qd5#
- 1...Sb4
- 2.Qb5#
- 1...Scd4
- 2.Qd5#
- 1...Sed4
- 2.Qd5#
- 1...Sf4
- 2.Qb5#
- 1...Sc7
- 2.Qd3#
- 1...Qe8!
- threat
- 1.Qxa5?
- Keys
- 1.Qe5!
- threat
- 2.Qc3#
- 2.Qd5#
- 2.d3#
- 1...Sxe3
- 2.Qc3#
- 2.d3#
- 1...fxe4
- 2.d3#
- 1...Qg7
- 2.Qd5#
- 2.d3#
- 1...Qa8
- 2.Qc3#
- 2.d3#
- 1...Qh8
- 2.Qd5#
- 2.d3#
- 1...Se1
- 2.Qc3#
- 2.Qd5#
- 1...Sb4
- 2.Qc3#
- 1...Scd4
- 2.Qd5#
- 1...Sed4
- 2.Qd5#
- 1...Sf4
- 2.Qc3#
- 1...Sc7
- 2.Qc3#
- 2.d3#
- 1...d5
- 2.Qc3#
- 2.Qxd5#
- 2.d3#
- threat
- 1.Qe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(G);N_PINP(d),XP(c)
- Threat
- DUALS(4)
- Vars
- S(a);XP(C)::QAR1(G)
- Q(i);P_PINQ(G)::P(A)
- S(a);::QAB1(G)
- Refutation
- P(e);P_SPINP(e),XP(E)
- Try
- Q(G);N_PINP(d)
- Threat
- DUALS(3)
- Vars
- S(a);XP(C)::QAB1(G)
- P(e);P_SPINP(e),XP(E)::QAB1(G)
- Q(i);::QAB1(G)
- S(a);::QAB1(G)
- S(f);::QAB1(G)
- S(f);::QAB(G)
- Refutation
- S(a);
- Try
- Q(G);N_PINP(d)
- Threat
- DUALS(4)
- Vars
- P(e);P_SPINP(e),XP(E)::QAB1(G)
- Q(i);::QAB1(G)
- S(a);::QAB1(G)
- S(f);::QAB1(G)
- Refutation
- S(a);XP(C)
- Try
- Q(G);N_PINP(d),XP(g)
- Threat
- DUALS(3)
- Vars
- S(a);XP(C)::QAB1(G)
- P(e);P_SPINP(e),XP(E)::QAB1(G)
- Q(i);::QAB1(G)
- S(a);::QAB1(G)
- S(f);::QAB1(G)
- Refutation
- Q(i);P_PINQ(G)
- Try
- Actual
- Q(G);N_PINP(d)
- Threat
- DUALS(3)
- Vars
- P(e);P_SPINP(e),XP(E)::P(A)
- S(a);::QAR1(G)
- S(a);::QAB1(G)
- S(f);::QAB1(G)
- S(f);::QAR1(G)
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).