MESON Chess Problem Database

Problem Display
PID: 231281 (n6N/1K6/2P1N3/1pBPkppR/5Rp1/2pPp3/4P3/4Q3 w - - 0 1)

Kamoen, DW

van Dijk, Johannes

Noord-Hollandsch Dagblad, 1927

n6N/1K6/2P1N3/1pBPkppR/5Rp1/2pPp3/4P3/4Q3

#2

11 + 8

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Qxc3#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Rxf5#
      • 1...Kxf4
        • 2.Sg6#
        • 2.Bd6#
      • 1...Kxd5
        • 2.Rxf5#
      • 1...gxf4
        • 2.Rxf5#
      • 1...Kf6!
    • 1.Rxg5?
      • threat
        • 2.Rfxf5#
        • 2.Rgxf5#
      • 1...Kf6
        • 2.Rfxf5#
        • 2.Rgxf5#
        • 2.Qxc3#
      • 1...Kxd5!
    • 1.d4+?
      • 1...Kf6
        • 2.Rh6#
      • 1...Kxd5!
  • Keys
    • 1.Sg7!
      • threat
        • 2.Rxf5#
      • 1...Kxf4
        • 2.Sg6#
        • 2.Bd6#
      • 1...Kxd5
        • 2.Rxf5#
      • 1...Kf6
        • 2.Qxc3#
      • 1...gxf4
        • 2.Rxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(e);P_SPINP(f),S_FLIGHT::QAB(A),XP(a)
  • Tries
    • Try
      • S(I);
      • Threat
        • R1(D),XP(f)
      • Vars
        • K(e);P-FLIGHT,XP(F)::R(D),XP(f)
        • P(g);OGATE,P_SPINP(f),XR(D)::R1(G),XP(f)
      • Refutation
        • K(e);P_SPINP(f),S_FLIGHT
    • Try
      • R(G);P_PINP(f),XP(g)
      • Threat
        • DUALS(2)
      • Refutation
        • K(e);P-FLIGHT,XP(F)
    • Try
      • P(C);CHECK
      • Vars
        • K(e);P_SPINP(f),S_FLIGHT::R(G)
      • Refutation
        • K(e);P-FLIGHT,XP(F)
  • Actual
    • S(I);
    • Threat
      • R1(D),XP(f)
    • Vars
      • K(e);P-FLIGHT,XP(F)::R(D),XP(f)
      • K(e);P_SPINP(f),S_FLIGHT::QAB(A),XP(a)
      • P(g);OGATE,P_SPINP(f),XR(D)::R1(G),XP(f)
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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).