MESON Chess Problem Database
Problem Display
PID: 52075 (5Q2/3b1p2/8/q7/PP1RP1p1/RB2BkpP/2N3p1/3K2n1 w - - 0 1)
Mochalkin, Oleksandr Viktorovich
Postnikov, Oleksandr Borisovich
2nd Prize, Peremoga-45 JT, 1990
#2
11 + 8
| 4827 | FIDE Album (1989-1991) | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Bb5
- 2.Qxf7#
- 1...Bb5
- Tries
- 1.Bd5?
- threat
- 2.Se1#
- 1...Qxb4
- 2.e5#
- 1...Qxa4
- 2.e5#
- 1...Bxa4
- 2.Qxf7#
- 1...gxh3!
- threat
- 1.Bxf7?
- threat
- 2.Se1#
- 1...Qxa4
- 2.Be6#
- 1...Bxa4
- 2.Bd5#
- 1...gxh3
- 2.Bh5#
- 1...Qxb4!
- threat
- 1.Qh6?
- threat
- 2.Se1#
- 2.Qf4#
- 1...Qxb4
- 2.Qf4#
- 1...Sxh3
- 2.Se1#
- 1...gxh3
- 2.Qf4#
- 1...Qc7
- 2.Se1#
- 1...Qe5
- 2.Se1#
- 1...Qf5
- 2.Se1#
- 1...Se2
- 2.Se1#
- 1...Qg5!
- threat
- 1.Bd5?
- Keys
- 1.Be6!
- threat
- 2.Se1#
- 1...Qxb4
- 2.Qxf7#
- 1...Qxa4
- 2.Qxf7#
- 1...Bxa4
- 2.Bxg4#
- threat
- 1.Be6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- B(g);N_GUARD,S_CUTQ(f)::QAR(K),XP(h)
- Tries
- Try
- B(D);
- Threat
- S(B)
- Vars
- Q(f);N_GUARD,XP(H)::B(D)+P(J)
- Q(f);N_GUARD,P_PINS(B),XP(G)::B(D)+P(J)
- B(g);N_GUARD,P_PINS(B),XP(G)::QAR(K),XP(h)
- Refutation
- P(e);XP(F)
- Try
- B(D);XP(h)
- Threat
- S(B)
- Vars
- Q(f);N_GUARD,P_PINS(B),XP(G)::QAR(K)+B(D)
- B(g);N_GUARD,P_PINS(B),XP(G)::QAR(K)+B(D)
- P(e);XP(F)::QAR(K)+B(D),DCHECK
- Refutation
- Q(f);XP(H)
- Try
- Q(K);N_PINP(h)
- Threat
- DUALS(2)
- Vars
- Q(f);XP(H)::QAR1(K)
- S(a);XP(F)::S(B)
- P(e);XP(F)::QAR1(K)
- Q(f);::S(B)
- S(a);::S(B)
- Refutation
- Q(f);
- Try
- Actual
- B(D);
- Threat
- S(B)
- Vars
- Q(f);N_GUARD,XP(H)::QAR(K),XP(h)
- Q(f);N_GUARD,P_PINS(B),XP(G)::QAR(K),XP(h)
- B(g);N_GUARD,P_PINS(B),XP(G)::B(D),XP(e)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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