MESON Chess Problem Database

Problem Display
PID: 254899 (6Bn/5n1p/3p2bQ/1P1k1PR1/3P1p2/3K1p1p/5P2/8 w - - 0 1)

Jordan, Gijsbertus

Probleemblad, 1946

6Bn/5n1p/3p2bQ/1P1k1PR1/3P1p2/3K1p1p/5P2/8

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf5+
      • 2.Rxf5#
    • 1...Bh5
      • 2.Qe6#
  • Tries
    • 1.Rh5?
      • 1...Bxf5+
        • 2.Rxf5#
      • 1...Bxh5
        • 2.Qe6#
      • 1...h2!
    • 1.Rxg6?
      • threat
        • 2.Rxd6#
      • 1...Sxg6
        • 2.Bxf7#
      • 1...hxg6!
    • 1.Qxg6?
      • threat
        • 2.Qe6#
      • 1...Sxg6
        • 2.Bxf7#
      • 1...hxg6!
  • Keys
    • 1.Qxh3!
      • threat
        • 2.Qxf3#
        • 2.fxg6#
      • 1...Bxf5+
        • 2.Qxf5#
      • 1...Bh5
        • 2.f6#
      • 1...h6
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(f);CHECK,OGATE,P_SPINB(f),XP(E)::R(F),XB(f)
    • B(f);N_PINP(E),OGATE::QAB1(G)
  • Tries
    • Try
      • R(F);
      • Vars
        • B(f);CHECK,OGATE,P_SPINB(f),XP(E)::R(F),XB(f)
        • B(f);N_PINP(E),OGATE,XR(F)::QAB1(G)
      • Refutation
        • P(b);
    • Try
      • R(F);N_SPINP(E),XB(f)
      • Threat
        • R1(F),XP(e)
      • Vars
        • S(i);N_GUARD,XR(F)::B(H),XS(g)
      • Refutation
        • P(h);XR(F)
    • Try
      • Q(G);N_SPINP(E),XB(f)
      • Threat
        • QAB1(G)
      • Vars
        • S(i);N_GUARD,XQ(G)::B(H),XS(g)
      • Refutation
        • P(h);XQ(G)
  • Actual
    • Q(G);XP(b)
    • Threat
      • DUALS(2)
    • Vars
      • B(f);CHECK,OGATE,P_SPINB(f),XP(E)::QAR2(G),XB(f)
      • B(f);N_PINP(E)::R(F)+P(E)
      • P(h);::QAB(G),XP(a)
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).