MESON Chess Problem Database
Problem Display
PID: 151054 (1R6/2N5/6B1/K1p5/2kP4/1p6/1Q3R2/4nr2 w - - 0 1)
Alaikov, Venelin
Die Schwalbe, 1985
#2
7 + 5
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Sd3
- 2.Bf7#
- 1...Sd3
- Tries
- 1.Rd2?
- threat
- 2.Qxb3#
- 1...cxd4
- 2.Qxd4#
- 1...Sd3
- 2.Bxd3#
- 1...Rf3!
- threat
- 1.Rxb3?
- threat
- 2.Bf7#
- 2.Qc3#
- 1...Rxf2
- 2.Qc3#
- 1...cxd4!
- threat
- 1.Qd2?
- threat
- 2.Bf7#
- 1...cxd4
- 2.Qb4#
- 1...Sd3
- 2.Qxd3#
- 1...Rxf2!
- threat
- 1.Qe2+?
- 1...Kc3
- 2.Sb5#
- 1...Sd3
- 2.Qxd3#
- 1...Kxd4!
- 1...Kc3
- 1.Rd2?
- Keys
- 1.Rb5!
- threat
- 2.Rxc5#
- 1...cxd4
- 2.Qxb3#
- 1...Sd3
- 2.Bf7#
- threat
- 1.Rb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);SBLOCK::B(E)
- Tries
- Try
- R(B);
- Threat
- QAB1(A),XP(c)
- Vars
- P(e);OGATE,XP(C)::QAR1(A),XP(e)
- S(a);N_GUARD::B(E),XS(a)
- Refutation
- R(b);
- Try
- R(G);XP(c)
- Threat
- DUALS(2)
- Vars
- R(b);XR(B)::QAR1(A)
- Refutation
- P(e);XP(C)
- Try
- Q(A);
- Threat
- B(E)
- Vars
- P(e);N_GUARD,SBLOCK,XP(C)::QAR1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- R(b);XR(B)
- Try
- Q(A);CHECK
- Vars
- K(d);P-FLIGHT::S(F)
- S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
- Refutation
- K(d);P-FLIGHT,XP(C)
- Try
- Actual
- R(G);
- Threat
- R1(G),XP(e)
- Vars
- P(e);SBLOCK,XP(C)::QAB1(A),XP(c)
- S(a);SBLOCK::B(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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