MESON Chess Problem Database

Problem Display
PID: 35066 (2Q5/bNpp1p2/2N5/2PP3R/P1k4K/4R3/8/8 w - - 0 1)

Reitman, Mark

4th Comm., Schach-Aktiv, 1994

2Q5/bNpp1p2/2N5/2PP3R/P1k4K/4R3/8/8

#2

9 + 5

3657 Izbrannie Shakhmatnie Zadachi Marka Reitmana 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc5
      • 2.Sba5#
    • 1...dxc6
      • 2.Qg4#
    • 1...d6
      • 2.Qg4#
  • Tries
    • 1.Qxd7?
      • threat
        • 2.Qg4#
      • 1...Bxc5
        • 2.Sba5#
      • 1...f5!
    • 1.Qe8?
      • threat
        • 2.Qe4#
      • 1...Bxc5
        • 2.Sba5#
      • 1...f5!
    • 1.Qh8?
      • threat
        • 2.Rc3#
        • 2.Qc3#
        • 2.Qd4#
      • 1...Bxc5
        • 2.Sba5#
        • 2.Rc3#
        • 2.Qc3#
      • 1...dxc6
        • 2.Qc3#
      • 1...f5
        • 2.Qd4#
      • 1...f6!
    • 1.d6?
      • threat
        • 2.Sba5#
      • 1...dxc6
        • 2.Qg4#
      • 1...f5
        • 2.Qg8#
      • 1...Bb6!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qg4#
      • 1...Bxc5
        • 2.Sba5#
      • 1...f5
        • 2.d6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(b);SBLOCK,XP(D)::S(H)
    • P(d);OGATE,XS(G)::QAR(I)
    • P(d);OGATE::QAR(I)
  • Tries
    • Try
      • Q(I);XP(d)
      • Threat
        • QAR(I)
      • Vars
        • B(b);SBLOCK,XP(D)::S(H)
      • Refutation
        • P(e);
    • Try
      • Q(I);
      • Threat
        • QAR2(I)
      • Vars
        • B(b);SBLOCK,XP(D)::S(H)
      • Refutation
        • P(e);
    • Try
      • Q(I);
      • Threat
        • DUALS(3)
      • Vars
        • P(d);XS(G)::QAR1(I)
        • P(e);::QAR1(I)
      • Refutation
        • P(e);
    • Try
      • P(E);
      • Threat
        • S(H)
      • Vars
        • P(d);OGATE,XS(G)::QAR(I)
        • P(e);OGATEB::QAB(I)
      • Refutation
        • B(b);
  • Actual
    • Q(I);
    • Threat
      • QAR(I)
    • Vars
      • B(b);SBLOCK,XP(D)::S(H)
      • P(e);::QAB(I)+P(E)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).