MESON Chess Problem Database
Problem Display
PID: 65393 (8/1B4q1/3BQ3/8/2NpPPPR/5k1N/K1R2Ppp/6n1 w - - 0 1)
Heinonen, Unto
3rd Prize, Pohjonen-70 JT, 1994
#2
12 + 6
| 5416 | FIDE Album (1992-1994) (Annexe) | 2003 |
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Sxe5#
- 1...Qf6
- 2.e5#
- 1...Qh6
- 2.Se5#
- 2.e5#
- 1...Qf8
- 2.Sg5#
- 2.Se5#
- 2.e5#
- 1...Qh8
- 2.Sg5#
- 2.e5#
- 1...Qxg4
- 2.Se5#
- 2.Qxg4#
- 2.e5#
- 1...Qg5
- 2.Sxg5#
- 2.e5#
- 1...Qg6
- 2.Se5#
- 1...Qxb7
- 2.Sg5#
- 1...Qc7
- 2.Sg5#
- 2.Se5#
- 1...Qd7
- 2.Sg5#
- 2.Se5#
- 1...Qe7
- 2.Se5#
- 1...Qf7
- 2.Sg5#
- 2.Se5#
- 1...Qh7
- 2.Sg5#
- 2.Se5#
- 1...Qg8
- 2.Se5#
- 2.e5#
- 1...Se2
- 2.Sd2#
- 1...Sxh3
- 2.Rxh3#
- 1...h1S
- 2.Sxg1#
- 1...h1B
- 2.Sxg1#
- 1...Qe5
- Tries
- 1.Sxg1+?
- 1...hxg1Q
- 2.Rh3#
- 1...hxg1B
- 2.Rh3#
- 1...hxg1R
- 2.Rh3#
- 1...hxg1S!
- 1...hxg1Q
- 1.Bc7?
- threat
- 2.e5#
- 1...Sxh3
- 2.Rxh3#
- 1...Qe5
- 2.Sxe5#
- 1...Qg6
- 2.Se5#
- 1...Qd7
- 2.Sg5#
- 2.Se5#
- 1...Qh7
- 2.Sg5#
- 2.Se5#
- 1...Qxc7!
- threat
- 1.Be7?
- threat
- 2.e5#
- 1...Qxe7
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Qg6
- 2.Se5#
- 1...Qh7
- 2.Se5#
- 1...Sxh3!
- threat
- 1.Bd5?
- threat
- 2.e5#
- 1...Sxh3
- 2.Rxh3#
- 1...Qe5
- 2.Sxe5#
- 1...Qg6
- 2.Se5#
- 1...Qb7
- 2.Sg5#
- 2.Se5#
- 1...Qh7
- 2.Sg5#
- 2.Se5#
- 1...Qa7+!
- threat
- 1.Ba6?
- threat
- 2.Sd2#
- 1...Sxh3
- 2.Rxh3#
- 1...d3!
- threat
- 1.Bc6?
- threat
- 2.e5#
- 1...Sxh3
- 2.Rxh3#
- 1...Qe5
- 2.Sxe5#
- 1...Qg6
- 2.Se5#
- 1...Qb7
- 2.Sg5#
- 2.Se5#
- 1...Qc7
- 2.Sg5#
- 2.Se5#
- 1...Qd7
- 2.Sg5#
- 2.Se5#
- 1...Qh7
- 2.Sg5#
- 2.Se5#
- 1...Qa7+!
- threat
- 1.Qd5?
- threat
- 2.e5#
- 1...Qxb7
- 2.Sg5#
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Qg6
- 2.Se5#
- 1...Qf7
- 2.Sg5#
- 2.Se5#
- 1...Qh7
- 2.Sg5#
- 2.Se5#
- 1...Qg8
- 2.Se5#
- 1...Sxh3!
- threat
- 1.Qd7?
- threat
- 2.e5#
- 1...Qxd7
- 2.Sg5#
- 2.Se5#
- 1...Sxh3
- 2.Rxh3#
- 1...Qe5
- 2.Sxe5#
- 1...Qg6
- 2.Se5#
- 1...Qf7
- 2.Sg5#
- 1...Qh7
- 2.Sg5#
- 2.Se5#
- 1...Qg8!
- threat
- 1.Qf6?
- threat
- 2.Se5#
- 1...Qxf6
- 2.e5#
- 1...Qxb7
- 2.Sg5#
- 1...Qg5
- 2.Sxg5#
- 2.e5#
- 2.fxg5#
- 1...Qe7
- 2.Sg5#
- 1...Qf7
- 2.Sg5#
- 1...Qg8!
- threat
- 1.Qg6?
- threat
- 2.Sg5#
- 1...Qxg6
- 2.Se5#
- 1...Sxh3
- 2.Rxh3#
- 1...Qe5
- 2.Sxe5#
- 1...Qf6
- 2.e5#
- 1...Qh6
- 2.Se5#
- 2.e5#
- 1...Se2
- 2.Sd2#
- 1...Qe7!
- threat
- 1.g5?
- threat
- 2.Qg4#
- 1...Qxg5
- 2.Sxg5#
- 2.e5#
- 1...Qd7
- 2.Se5#
- 1...Qxb7!
- threat
- 1.Sxg1+?
- Keys
- 1.Qf7!
- threat
- 2.e5#
- 1...Qxf7
- 2.Sg5#
- 1...Qe5
- 2.Sxe5#
- 2.fxe5#
- 1...Qg6
- 2.Se5#
- 1...Qh7
- 2.Sg5#
- 2.Se5#
- threat
- 1.Qf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- Q(f);N_GUARD::S(E),XQ(f)
- Q(f);N_GUARD::B(L)+P(F)
- Q(f);N_GUARD::S(E)
- Q(f);N_GUARD,XB(L)::S(D)
- S(a);SBLOCK::S(E)
- S(a);OGATE,XS(D)::R(I),XS(a)
- P(c);N_GUARD::S(D),XS(a)
- Tries
- Try
- S(D);CHECK,XS(a)
- Vars
- P(c);XS(D)::R(I)
- Refutation
- P(c);XS(D)
- Try
- B(J);
- Threat
- B(L)+P(F)
- Vars
- S(a);OGATE,XS(D)::R(I),XS(a)
- Q(f);N_GUARD::S(E),XQ(f)
- Q(f);N_GUARD::S(E)
- Refutation
- Q(f);XB(J)
- Try
- B(J);
- Threat
- B(L)+P(F)
- Vars
- Q(f);N_GUARD,XB(J)::S(E)
- Q(f);N_GUARD::S(E),XQ(f)
- Q(f);N_GUARD::S(E)
- Refutation
- S(a);XS(D)
- Try
- B(L);
- Threat
- B(L)+P(F)
- Vars
- S(a);OGATE,XS(D)::R(I),XS(a)
- Q(f);N_GUARD::S(E),XQ(f)
- Q(f);N_GUARD::S(E)
- Refutation
- Q(f);CHECK
- Try
- B(L);
- Threat
- S(E)
- Vars
- S(a);OGATE,XS(D)::R(I),XS(a)
- Refutation
- P(e);
- Try
- B(L);
- Threat
- B(L)+P(F)
- Vars
- S(a);OGATE,XS(D)::R(I),XS(a)
- Q(f);N_GUARD::S(E),XQ(f)
- Q(f);N_GUARD::S(E)
- Refutation
- Q(f);CHECK
- Try
- Q(K);
- Threat
- QAB(K)+P(F)
- Vars
- Q(f);N_GUARD::S(E),XQ(f)
- Q(f);N_GUARD::S(E)
- Refutation
- S(a);XS(D)
- Try
- Q(K);
- Threat
- B(L)+P(F)
- Vars
- S(a);OGATE,XS(D)::R(I),XS(a)
- Q(f);N_GUARD::S(E),XQ(f)
- Q(f);N_GUARD::S(E)
- Q(f);N_GUARD,P_PINS(E)::S(D)
- Refutation
- Q(f);P_PINS(E)
- Try
- Q(K);
- Threat
- S(E)
- Vars
- Q(f);N_GUARD,XQ(K)::B(L)+P(F)
- Q(f);N_GUARD,XB(L)::S(D)
- Q(f);N_GUARD::S(D)
- Q(f);N_GUARD,P_PINS(E)::S(D)
- Refutation
- Q(f);P_PINS(E)
- Try
- Q(K);
- Threat
- S(D)
- Vars
- Q(f);N_GUARD,XQ(K)::S(E)
- S(a);OGATE,XS(D)::R(I),XS(a)
- Q(f);N_GUARD::S(E),XQ(f)
- Q(f);N_GUARD::B(L)+P(F)
- S(a);SBLOCK::S(E)
- Refutation
- Q(f);
- Try
- P(H);
- Threat
- QAB1(K)
- Vars
- Q(f);N_GUARD::S(E)
- Refutation
- Q(f);XB(L)
- Try
- Actual
- Q(K);
- Threat
- B(L)+P(F)
- Vars
- Q(f);N_GUARD,P_PINS(E),XQ(K)::S(D)
- Q(f);N_GUARD::S(E)
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).