MESON Chess Problem Database

Problem Display
PID: 193382 (8/8/3B2p1/3P4/1Ppk2K1/2N5/P1ppPPpp/6Q1 w - - 0 1)

van Dijk, Johannes

Algemeen Handelsblad, 1914

8/8/3B2p1/3P4/1Ppk2K1/2N5/P1ppPPpp/6Q1

#2

9 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc3
      • 2.Qa1#
  • Tries
    • 1.Kf4?
      • threat
        • 2.Be5#
      • 1...Kxc3
        • 2.Qa1#
      • 1...g5+!
    • 1.Sb5+?
      • 1...Ke4
        • 2.Qxg2#
      • 1...Kxd5!
    • 1.Bc5+?
      • 1...Kxc3
        • 2.Qa1#
      • 1...Ke5!
    • 1.Bf8?
      • threat
        • 2.Bg7#
      • 1...Kxc3
        • 2.Qa1#
      • 1...Ke5!
  • Keys
    • 1.Be7!
      • threat
        • 2.Bf6#
      • 1...Kxc3
        • 2.Qa1#
      • 1...Ke5
        • 2.f4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(f);OGATEB,S_FLIGHT,XS(E)::QAB(A)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Threat
        • B(I)
      • Vars
        • K(f);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • Refutation
        • P(g);CHECK
    • Try
      • S(E);CHECK
      • Vars
        • K(f);P-FLIGHT::QAB(A),XP(c)
      • Refutation
        • K(f);P-FLIGHT,XP(H)
    • Try
      • B(I);CHECK
      • Vars
        • K(f);S_FLIGHT,XS(E)::QAB(A)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • B(I);
      • Threat
        • B(I)
      • Vars
        • K(f);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • B(I);
    • Threat
      • B(I)
    • Vars
      • K(f);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • K(f);S_FLIGHT::P(D)
HTML5 logo

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).