MESON Chess Problem Database
Problem Display
PID: 81960 (8/4Kn2/2QppR1r/4k2N/2b2p2/3p4/2N2P2/6b1 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Boletim da UBP, 1964
#2
6 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...d5
- 2.Qxe6#
- 1...d5
- Tries
- 1.Rxf4?
- threat
- 2.Qe4#
- 1...Bd5
- 2.Qc3#
- 1...Sg5
- 2.Qxd6#
- 1...d5!
- threat
- 1.Qc5+?
- 1...Ke4
- 2.Rxf4#
- 1...Bd5
- 2.Qd4#
- 1...d5
- 2.Qd4#
- 1...dxc5!
- 1...Ke4
- 1.Qxd6+?
- 1...Ke4
- 2.Rxf4#
- 1...Sxd6!
- 1...Ke4
- 1.f3?
- threat
- 2.Qe4#
- 1...Sg5
- 2.Qxd6#
- 1...d5
- 2.Qxe6#
- 1...Bd5!
- threat
- 1.Rxf4?
- Keys
- 1.Sg3!
- threat
- 2.Qe4#
- 1...fxg3
- 2.f4#
- 1...Bd5
- 2.Qc3#
- 1...Sg5
- 2.Qxd6#
- 1...d5
- 2.Qxe6#
- threat
- 1.Sg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- P(f);OGATE::QAR1(D),XP(g)
- Tries
- Try
- R(E);XP(d)
- Threat
- QAR1(D)
- Vars
- B(c);OGATE,SBLOCK::QAB(D)
- S(i);N_GUARD::QAB1(D),XP(f)
- Refutation
- P(f);
- Try
- Q(D);CHECK
- Vars
- K(e);P-FLIGHT::R1(E),XP(d)
- B(c);P_SPINB(c)::QAB1(D)
- P(f);P_SPINP(f)::QAB1(D)
- Refutation
- P(f);XQ(D)
- Try
- Q(D);CHECK,XP(f)
- Vars
- K(e);P-FLIGHT::R1(E),XP(d)
- Refutation
- S(i);XQ(D)
- Try
- P(B);
- Threat
- QAR1(D)
- Vars
- S(i);N_GUARD::QAB1(D),XP(f)
- P(f);OGATE::QAR1(D),XP(g)
- Refutation
- B(c);
- Try
- Actual
- S(C);
- Threat
- QAR1(D)
- Vars
- P(d);OGATE,XS(C)::P(B)
- B(c);OGATE,SBLOCK::QAB(D)
- S(i);N_GUARD::QAB1(D),XP(f)
- P(f);OGATE::QAR1(D),XP(g)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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