MESON Chess Problem Database
Problem Display
PID: 48260 (2n5/2N5/2qprp2/R1pbk1p1/3p1p2/1N1BBRQ1/7b/2K5 w - - 0 1)
Ivanov, Vadim Aleksandrovich
Die Schwalbe, 2003
#2
8 + 12
SOLUTION
- SOUND
- Sets
- 1...Bxf3
- 2.Bxd4#
- 1...Bc4
- 2.Bxd4#
- 1...fxg3
- 2.Rf5#
- 1...c4
- 2.Bxd4#
- 1...g4
- 2.Bxf4#
- 1...Bxf3
- Tries
- 1.Qe1?
- threat
- 2.Bxd4#
- 2.Bxf4#
- 1...Bxb3
- 2.Bxf4#
- 1...Bxf3
- 2.Bxd4#
- 1...dxe3
- 2.Qc3#
- 1...fxe3
- 2.Rf5#
- 1...f5
- 2.Bxd4#
- 1...Be4!
- threat
- 1.Qg4?
- threat
- 2.Qf5#
- 1...f5
- 2.Qxf5#
- 1...Be4
- 2.Bxd4#
- 2.Qxe6#
- 1...Se7!
- threat
- 1.Qxg5+?
- 1...f5
- 2.Qxf5#
- 1...fxg5!
- 1...f5
- 1.Qe1?
- Keys
- 1.Rxf4!
- threat
- 2.Rf5#
- 1...gxf4
- 2.Bxf4#
- 1...f5
- 2.Rxf5#
- 1...Be4
- 2.Bxd4#
- threat
- 1.Rxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- B(e);S_CUTP(d),XR(E)::B(D),XP(b)
- B(e);S_CUTP(d)::B(D),XP(b)
- P(c);N_SPINP(c),OGATE,XQ(F)::R1(E)
- P(d);N_GUARD,P_SPINB(e)::B(D),XP(b)
- P(g);N_GUARD::B(D),XP(c)
- Tries
- Try
- Q(F);N_PINP(c)
- Threat
- DUALS(2)
- Vars
- B(e);P_SPINP(d),XS(B)::QAR(F)+B(D),DCHECK,XP(c)
- B(e);P_SPINP(d),XR(E)::QAR(F)+B(D),DCHECK,XP(b)
- P(b);OGATEB,P_SPINP(b),XB(D)::QAB(F)
- P(c);OGATE,P_SPINP(c),XB(D)::R1(E)
- P(k);::QAR(F)+B(D),DCHECK,XP(b)
- Refutation
- B(e);P_SPINP(d)
- Try
- Q(F);N_PINP(c)
- Threat
- QAR1(F)
- Vars
- P(k);::QAR1(F),XP(k)
- Refutation
- S(l);
- Try
- Q(F);CHECK,N_PINP(c),XP(g)
- Vars
- P(k);P_SPINP(k)::QAR1(F),XP(k)
- Refutation
- P(k);XQ(F)
- Try
- Actual
- R(E);XP(c)
- Threat
- QAB(F)+R(E),DCHECK
- Vars
- P(g);OGATE,P_SPINP(g),XR(E)::B(D),XP(g)
- P(k);::QAB(F)+R(E),DCHECK,XP(k)
- B(e);P_SPINP(d)::B(D),XP(b)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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