MESON Chess Problem Database
Problem Display
PID: 60249 (8/3K3B/1p1QpP1P/3n1Pk1/3B2N1/2n1Pp2/3r1N2/7R w - - 0 1)
Heinonen, Unto
1st Prize, Nord. Masterskap, 1969
#2
11 + 7
| 3751 | FIDE Album (1968-1970) | 1977 |
SOLUTION
- SOUND
- Sets
- 1...Sxe3
- 2.Bxe3#
- 1...Sb4
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 2.exf4#
- 1...Sxf6+
- 2.Bxf6#
- 1...Sc7
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sxe3
- Tries
- 1.Se4+?
- 1...Kxg4
- 2.Qg3#
- 1...Sxe4!
- 1...Kxg4
- 1.Qe5?
- threat
- 2.fxe6#
- 1...Sxf6+
- 2.Qxf6#
- 1...Sxe3
- 2.Qxe3#
- 1...exf5
- 2.Qxf5#
- 1...Se7
- 2.Qf4#
- 1...Rxf2!
- threat
- 1.fxe6?
- threat
- 2.Qe5#
- 1...Sxf6+
- 2.Bxf6#
- 1...Sxe3
- 2.Bxe3#
- 1...Se7
- 2.Qf4#
- 1...Rxf2!
- threat
- 1.Se4+?
- Keys
- 1.Qg3!
- threat
- 2.Qh4#
- 1...Sxf6+
- 2.Sxf6#
- 1...Sxe3
- 2.Sxe3#
- threat
- 1.Qg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- S(d);OGATE,XP(C)::B(D),XS(d)
- S(d);N_GUARD::QAB1(G)
- S(d);CHECK,OGATE,XP(H)::B(D),XS(d)
- Tries
- Try
- S(B);CHECK
- Vars
- K(e);P-FLIGHT,XS(E)::QAR1(G)
- Refutation
- S(b);XS(B)
- Try
- Q(G);
- Threat
- QAR(G)+P(F),XP(g)
- Vars
- S(d);CHECK,OGATE,P_PINB(D),XP(H)::QAB1(G),XS(d)
- S(d);OGATE,P_PINB(D),XP(C)::QAB(G),XS(d)
- P(g);OGATE,P_SPINP(g),XP(F)::QAR1(G),XP(g)
- S(d);N_GUARD,P_PINB(D)::QAB1(G)
- Refutation
- R(a);XS(B)
- Try
- P(F);XP(g)
- Threat
- QAR2(G)
- Vars
- S(d);CHECK,OGATE,XP(H)::B(D),XS(d)
- S(d);OGATE,XP(C)::B(D),XS(d)
- S(d);N_GUARD::QAB1(G)
- Refutation
- R(a);XS(B)
- Try
- Actual
- Q(G);
- Threat
- QAB1(G)
- Vars
- S(d);CHECK,P_PINB(D),XP(H)::QAR(G)+S(E),XS(d)
- S(d);P_PINB(D),XP(C)::QAR(G)+S(E),XS(d)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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