MESON Chess Problem Database

Problem Display
PID: 183238 (8/7Q/1n1p1p2/pBNpR3/Pp1k4/1K4P1/8/8 w - - 0 1)

Kaiser, Julius Adam

Philadelphia Inquirer, 1907

8/7Q/1n1p1p2/pBNpR3/Pp1k4/1K4P1/8/8

#2

7 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Re1?
      • threat
        • 2.Se6#
      • 1...dxc5
        • 2.Qd3#
        • 2.Qh4#
      • 1...Kxc5!
    • 1.Re2?
      • threat
        • 2.Se6#
      • 1...dxc5
        • 2.Qd3#
        • 2.Qh4#
      • 1...Kxc5!
    • 1.Re4+?
      • 1...Kxc5
        • 2.Qc7#
      • 1...dxe4!
    • 1.Qd3+?
      • 1...Kxc5
        • 2.Qe3#
      • 1...Kxe5!
    • 1.Qe4+?
      • 1...Kxc5
        • 2.Qe3#
      • 1...dxe4!
    • 1.Qh4+?
      • 1...Kxe5
        • 2.Qf4#
      • 1...Kxc5!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Se6#
      • 1...Kxc5
        • 2.Qf2#
      • 1...dxc5
        • 2.Qf4#
      • 1...dxe5
        • 2.Qf2#
      • 1...fxe5
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);
      • Threat
        • S(E)
      • Refutation
        • K(b);S_FLIGHT,XS(E)
    • Try
      • R(F);
      • Threat
        • S(E)
      • Refutation
        • K(b);S_FLIGHT,XS(E)
    • Try
      • R(F);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(E)::QAR2(G)
      • Refutation
        • P(d);XR(F)
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);P_SPINP(d),S_FLIGHT,XS(E)::QAB(G)
      • Refutation
        • K(b);S_FLIGHT,XR(F)
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);P_SPINP(d),S_FLIGHT,XS(E)::QAB(G)
      • Refutation
        • P(d);XQ(G)
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(F)::QAB1(G)
      • Refutation
        • K(b);P_SPINP(d),S_FLIGHT,XS(E)
  • Actual
    • Q(G);
    • Threat
      • S(E)
    • Vars
      • K(b);P_SPINP(d),S_FLIGHT,XS(E)::QAB(G)
      • P(f);SBLOCK,XS(E)::QAR2(G)
      • P(f);SBLOCK,XR(F)::QAB(G)
      • P(g);SBLOCK,XR(F)::QAB(G)
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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).