MESON Chess Problem Database

Problem Display
PID: 203391 (6K1/1n1p4/5p2/p1Pk4/Q3R3/1p1N4/4P3/6b1 w - - 0 1)

Kulichikhin, A

1st HM., Shakhmaty, 1924

6K1/1n1p4/5p2/p1Pk4/Q3R3/1p1N4/4P3/6b1

#2

6 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Re5#
  • Tries
    • 1.Rd4+?
      • 1...Ke6
        • 2.Qxd7#
      • 1...Bxd4!
  • Keys
    • 1.Re6!
      • threat
        • 2.Qe4#
      • 1...Kxe6
        • 2.Qe4#
      • 1...Sxc5
        • 2.Sf4#
      • 1...dxe6
        • 2.e4#
      • 1...Bd4
        • 2.Qxb3#
      • 1...Sd6
        • 2.Rxd6#
      • 1...f5
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(e);N_GUARD::R1(D)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(C),XP(g)
      • Refutation
        • B(a);XR(D)
  • Actual
    • R(D);
    • Threat
      • QAB1(C)
    • Vars
      • K(d);S_FLIGHT,XR(D)::QAR2(C)
      • S(f);SBLOCK,XP(E)::S(B)
      • P(g);SBLOCK,XR(D)::P(A)
      • B(a);SBLOCK::QAB(C),XP(b)
      • S(f);N_GUARD::R1(D),XS(f)
      • P(e);N_GUARD::R1(D)
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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).