MESON Chess Problem Database
Problem Display
PID: 99450 (4Q3/rpR1P3/pP1BRK2/6p1/2PkPP2/P2b4/2pPp3/b7 w - - 0 1)
Zajic, Helmut
Magyar Sakkelet, 1986
#2
12 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Tries
- 1.Qa4?
- threat
- 2.Bc5#
- 1...Bxc4
- 2.Qxc4#
- 1...Bxe4!
- threat
- 1.Qc6?
- threat
- 2.Be5#
- 2.Qd5#
- 2.Qc5#
- 1...Bxc4
- 2.Qxc4#
- 1...Bxe4
- 2.Qxe4#
- 1...bxc6!
- threat
- 1.Qg6?
- threat
- 2.Be5#
- 1...Bxe4
- 2.Qxe4#
- 1...Bxc4!
- threat
- 1.Qd8?
- threat
- 2.Bb4#
- 1...Bxc4
- 2.Bc5#
- 1...Bxe4
- 2.Be5#
- 1...Ra8!
- threat
- 1.Qa4?
- Keys
- 1.Qd7!
- threat
- 2.Bb4#
- 1...Bxc4
- 2.Bc5#
- 1...Bxe4
- 2.Be5#
- threat
- 1.Qd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(L);
- Threat
- B(G)
- Vars
- B(d);OGATE,P_SPINB(d),XP(C)::QAR1(L),XB(d)
- Refutation
- B(d);XP(D)
- Try
- Q(L);
- Threat
- DUALS(3)
- Vars
- B(d);OGATE,XP(C)::QAR1(L),XB(d)
- B(d);OGATE,XP(D)::QAR1(L),XB(d)
- Refutation
- P(i);XQ(L)
- Try
- Q(L);
- Threat
- B(G)
- Vars
- B(d);OGATE,XP(D)::QAR1(L),XB(d)
- Refutation
- B(d);XP(C)
- Try
- Q(L);
- Threat
- QAR(L)+B(G)
- Vars
- B(d);SBLOCK,XP(C)::QAR(L)+B(G),DCHECK
- B(d);SBLOCK,XP(D)::QAR(L)+B(G),DCHECK
- Refutation
- R(h);
- Try
- Actual
- Q(L);
- Threat
- QAR(L)+B(G)
- Vars
- B(d);SBLOCK,XP(C)::QAR(L)+B(G),DCHECK
- B(d);SBLOCK,XP(D)::QAR(L)+B(G),DCHECK
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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